{"id":5649,"date":"2016-06-03T16:05:01","date_gmt":"2016-06-03T13:05:01","guid":{"rendered":"http:\/\/www.karadere.com\/blog\/?p=5649"},"modified":"2016-06-03T16:21:21","modified_gmt":"2016-06-03T13:21:21","slug":"ubuntu-adminitrator-cpu-monitoring","status":"publish","type":"post","link":"https:\/\/www.karadere.com\/blog\/ubuntu-adminitrator-cpu-monitoring.html","title":{"rendered":"Ubuntu adminitrator CPU monitoring"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone\" src=\"http:\/\/design.ubuntu.com\/wp-content\/uploads\/ubuntu-logo14.png\" width=\"540\" height=\"243\" \/><\/p>\n<p><strong>performance kontrol<\/strong><br \/>\nsudo top<br \/>\nsudo VmStat<\/p>\n<p>&nbsp;<\/p>\n<h4>1. Top \u2013 Linux Process Monitoring<\/h4>\n<p>Linux <strong>Top<\/strong> command is a performance monitoring program which is used frequently by many system administrators to monitor Linux performance and it is available under many <strong>Linux\/Unix<\/strong> like operating systems. The top command used to dipslay all the running and active real-time processes in ordered list and updates it regularly. It display <strong>CPU usage<\/strong>, <strong>Memory usage<\/strong>, <strong>Swap Memory<\/strong>, <strong>Cache Size<\/strong>, <strong>Buffer Size<\/strong>, <strong>Process PID<\/strong>, <strong>User<\/strong>,<strong>Command<\/strong>s and much more. It also shows high <strong>memory<\/strong> and <strong>cpu<\/strong> utilization of a running processess. The top command is much userful for system administrator to monitor and take correct action when required. Let\u2019s see top command in action.<\/p>\n<pre># top<\/pre>\n<div class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/command-line-tools-to-monitor-linux-performance\/Top%20Command%20Example\"><img loading=\"lazy\" decoding=\"async\" title=\"Top Command Example\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2012\/08\/Top-Command.jpg\" alt=\"Top Command Example\" width=\"630\" height=\"430\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Top Command Example<\/p>\n<\/div>\n<p><strong>For more examples of Top command read :<\/strong> <a href=\"http:\/\/www.tecmint.com\/12-top-command-examples-in-linux\/\" target=\"_blank\">12 TOP Command Examples in Linux<\/a><\/p>\n<h4>2. VmStat \u2013 Virtual Memory Statistics<\/h4>\n<p><center><ins class=\"adsbygoogle\" data-ad-client=\"ca-pub-2601749019656699\" data-ad-slot=\"9878518176\" data-adsbygoogle-status=\"done\"><ins id=\"aswift_4_expand\"><ins id=\"aswift_4_anchor\"><iframe id=\"aswift_4\" name=\"aswift_4\" width=\"200\" height=\"90\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/ins><\/ins><\/ins><\/center>Linux <strong>VmStat<\/strong> command used to display statistics of <strong>virtual memory<\/strong>, <strong>kernerl threads<\/strong>, <strong>disks<\/strong>, <strong>system processes<\/strong>,<strong>I\/O blocks<\/strong>, <strong>interrupts<\/strong>, <strong>CPU activity<\/strong> and much more. By default vmstat command is not available under Linux systems you need to install a package called <strong>sysstat<\/strong> that includes a vmstat program. The common usage of command format is.<\/p>\n<pre><strong># vmstat<\/strong>\r\n\r\nprocs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----\r\n r  b   swpd   free  inact active   si   so    bi    bo   in   cs us sy id wa st\r\n 1  0      0 810420  97380  70628    0    0   115     4   89   79  1  6 90  3  0<\/pre>\n<p><strong>For more Vmstat examples read :<\/strong> <a href=\"http:\/\/www.tecmint.com\/linux-performance-monitoring-with-vmstat-and-iostat-commands\/\" target=\"_blank\">6 Vmstat Command Examples in Linux<\/a><\/p>\n<h4>3. Lsof \u2013 List Open Files<\/h4>\n<p><strong>Lsof<\/strong> command used in many <strong>Linux\/Unix<\/strong> like system that is used to display list of all the open files and the processes. The open files included are <strong>disk files<\/strong>, <strong>network sockets<\/strong>, <strong>pipes<\/strong>, <strong>devices<\/strong> and <strong>processes<\/strong>. One of the main reason for using this command is when a disk cannot be unmounted and displays the error that files are being used or opened. With this commmand you can easily identify which files are in use. The most common format for this command is.<\/p>\n<pre><strong># lsof<\/strong>\r\n\r\nCOMMAND     PID      USER   FD      TYPE     DEVICE     SIZE       NODE NAME\r\ninit          1      root  cwd       DIR      104,2     4096          2 \/\r\ninit          1      root  rtd       DIR      104,2     4096          2 \/\r\ninit          1      root  txt       REG      104,2    38652   17710339 \/sbin\/init\r\ninit          1      root  mem       REG      104,2   129900     196453 \/lib\/ld-2.5.so\r\ninit          1      root  mem       REG      104,2  1693812     196454 \/lib\/libc-2.5.so\r\ninit          1      root  mem       REG      104,2    20668     196479 \/lib\/libdl-2.5.so\r\ninit          1      root  mem       REG      104,2   245376     196419 \/lib\/libsepol.so.1\r\ninit          1      root  mem       REG      104,2    93508     196431 \/lib\/libselinux.so.1\r\ninit          1      root   10u     FIFO       0,17                 953 \/dev\/initctl<\/pre>\n<p><strong>More lsof command usage and examples :<\/strong> <a href=\"http:\/\/www.tecmint.com\/10-lsof-command-examples-in-linux\/\" target=\"_blank\">10 lsof Command Examples in Linux<\/a><\/p>\n<h4>4. Tcpdump \u2013 Network Packet Analyzer<\/h4>\n<p><strong>Tcpdump<\/strong> one of the most widely used command-line <strong>network packet analyzer<\/strong> or <strong>packets sniffer<\/strong> program that is used capture or filter <strong>TCP\/IP<\/strong> packets that received or transferred on a specific interface over a network. It also provides a option to save captured packages in a file for later analysis. tcpdump is almost available in all major Linux distributions.<\/p>\n<pre><strong># tcpdump -i eth0<\/strong>\r\n\r\ntcpdump: verbose output suppressed, use -v or -vv for full protocol decode\r\nlistening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes\r\n22:08:59.617628 IP tecmint.com.ssh &gt; 115.113.134.3.static-mumbai.vsnl.net.in.28472: P 2532133365:2532133481(116) ack 3561562349 win 9648\r\n22:09:07.653466 IP tecmint.com.ssh &gt; 115.113.134.3.static-mumbai.vsnl.net.in.28472: P 116:232(116) ack 1 win 9648\r\n22:08:59.617916 IP 115.113.134.3.static-mumbai.vsnl.net.in.28472 &gt; tecmint.com.ssh: . ack 116 win 64347<\/pre>\n<p><strong>For more tcpdump usage read :<\/strong> <a href=\"http:\/\/www.tecmint.com\/12-tcpdump-commands-a-network-sniffer-tool\/\" target=\"_blank\">12 Tcpdump Command Examples in Linux<\/a><\/p>\n<h4>5. Netstat \u2013 Network Statistics<\/h4>\n<p><strong>Netstat<\/strong> is a command line tool for monitoring <strong>incoming<\/strong> and <strong>outgoing network<\/strong> packets statistics as well as interface statistics. It is very useful tool for every system administrator to monitor network performance and troubleshoot network related problems.<\/p>\n<pre><strong># netstat -a | more<\/strong>\r\n\r\nActive Internet connections (servers and established)\r\nProto Recv-Q Send-Q Local Address               Foreign Address             State\r\ntcp        0      0 *:mysql                     *:*                         LISTEN\r\ntcp        0      0 *:sunrpc                    *:*                         LISTEN\r\ntcp        0      0 *:realm-rusd                *:*                         LISTEN\r\ntcp        0      0 *:ftp                       *:*                         LISTEN\r\ntcp        0      0 localhost.localdomain:ipp   *:*                         LISTEN\r\ntcp        0      0 localhost.localdomain:smtp  *:*                         LISTEN\r\ntcp        0      0 localhost.localdomain:smtp  localhost.localdomain:42709 TIME_WAIT\r\ntcp        0      0 localhost.localdomain:smtp  localhost.localdomain:42710 TIME_WAIT\r\ntcp        0      0 *:http                      *:*                         LISTEN\r\ntcp        0      0 *:ssh                       *:*                         LISTEN\r\ntcp        0      0 *:https                     *:*                         LISTEN<\/pre>\n<p><strong>More Netstat examples :<\/strong> <a href=\"http:\/\/www.tecmint.com\/20-netstat-commands-for-linux-network-management\/\">20 Netstat Command Examples in Linux<\/a>.<\/p>\n<h4>6. Htop \u2013 Linux Process Monitoring<\/h4>\n<p><strong>Htop<\/strong> is a much advanced interactive and real time Linux process monitoring tool. This is much similar to Linux<strong>top command<\/strong> but it has some rich features like <strong>user friendly interface to manage process<\/strong>, <strong>shortcut keys<\/strong>,<strong>vertical and horizontal view of the processes<\/strong> and much more. Htop is a third party tool and doesn\u2019t included in Linux systems, you need to install it using <strong>YUM<\/strong> package manager tool. For more information on installation read our article below.<\/p>\n<pre><strong># htop<\/strong><\/pre>\n<div class=\"wp-caption aligncenter\">\n<p><img loading=\"lazy\" decoding=\"async\" title=\"Htop Command Example\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2012\/08\/htop-3.jpg\" alt=\"Htop Command Example\" width=\"600\" height=\"363\" data-lazy-loaded=\"true\" \/><\/p>\n<p class=\"wp-caption-text\">Htop Command Example Screenshot<\/p>\n<\/div>\n<p><strong>For Htop installation read :<\/strong> <a href=\"http:\/\/www.tecmint.com\/install-htop-linux-process-monitoring-for-rhel-centos-fedora\/\" target=\"_blank\">Install Htop (Linux Process Monitoring) in Linux<\/a><\/p>\n<h4>7. Iotop \u2013 Monitor Linux Disk I\/O<\/h4>\n<p><strong>Iotop<\/strong> is also much similar to <strong>top command<\/strong> and <strong>Htop program<\/strong>, but it has accounting function to monitor and display real time <strong>Disk I\/O<\/strong> and <strong>processes<\/strong>. This tool is much useful for finding the exact process and high used disk read\/writes of the processes.<\/p>\n<pre><strong># iotop<\/strong><\/pre>\n<div class=\"wp-caption aligncenter\">\n<p><img loading=\"lazy\" decoding=\"async\" title=\"Iotop Command Example\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2012\/07\/iotop-Screen.jpg\" alt=\"Iotop Command Example\" width=\"630\" height=\"420\" data-lazy-loaded=\"true\" \/><\/p>\n<p class=\"wp-caption-text\">Iotop Command Example Screenshot<\/p>\n<\/div>\n<p><strong>For Ioptop installation and usage read :<\/strong> <a href=\"http:\/\/www.tecmint.com\/install-iotop-monitor-linux-disk-io-in-rhel-centos-and-fedora\/\" target=\"_blank\">Install Iotop in Linux<\/a><\/p>\n<h4>8. Iostat \u2013 Input\/Output Statistics<\/h4>\n<p><strong>IoStat<\/strong> is simple tool that will collect and show system <strong>input<\/strong> and <strong>output<\/strong> storage device statistics. This tool is often used to trace storage device performance issues including <strong>devices<\/strong>, <strong>local disks<\/strong>, <strong>remote disks<\/strong> such as<strong>NFS<\/strong>.<\/p>\n<pre><strong># iostat<\/strong>\r\n\r\nLinux 2.6.18-238.9.1.el5 (tecmint.com)         09\/13\/2012\r\n\r\navg-cpu:  %user   %nice %system %iowait  %steal   %idle\r\n           2.60    3.65    1.04    4.29    0.00   88.42\r\n\r\nDevice:            tps   Blk_read\/s   Blk_wrtn\/s   Blk_read   Blk_wrtn\r\ncciss\/c0d0       17.79       545.80       256.52  855159769  401914750\r\ncciss\/c0d0p1      0.00         0.00         0.00       5459       3518\r\ncciss\/c0d0p2     16.45       533.97       245.18  836631746  384153384\r\ncciss\/c0d0p3      0.63         5.58         3.97    8737650    6215544\r\ncciss\/c0d0p4      0.00         0.00         0.00          8          0\r\ncciss\/c0d0p5      0.63         3.79         5.03    5936778    7882528\r\ncciss\/c0d0p6      0.08         2.46         2.34    3847771    3659776<\/pre>\n<p><strong>For more Iostat usage and examples visit :<\/strong> <a href=\"http:\/\/www.tecmint.com\/linux-performance-monitoring-with-vmstat-and-iostat-commands\/\" target=\"_blank\">6 Iostat Command Examples in Linux<\/a><\/p>\n<h4>9. IPTraf \u2013 Real Time IP LAN Monitoring<\/h4>\n<p><strong>IPTraf<\/strong> is an open source console-based real time network (<strong>IP LAN<\/strong>) monitoring utility for <strong>Linux<\/strong>. It collects a variety of information such as IP traffic monitor that passes over the network, including TCP flag information, ICMP details, TCP\/UDP traffic breakdowns, TCP connection packet and byne counts. It also gathers information of general and detaled interface statistics of TCP, UDP, IP, ICMP, non-IP, IP checksum errors, interface activity etc.<\/p>\n<div id=\"attachment_2167\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/IPTraf2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2167\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/IPTraf2.png\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/IPTraf2.png 600w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/IPTraf2-300x188.png 300w\" alt=\"IP Traffic Monitor\" width=\"600\" height=\"377\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">IP Traffic Monitor<\/p>\n<\/div>\n<p><strong>For more information and usage of IPTraf tool, please visit :<\/strong> <a href=\"http:\/\/www.tecmint.com\/real-time-interactive-ip-lan-monitoring-with-iptraf-tool\/\" target=\"_blank\">IPTraf Network Monitoring Tool<\/a><\/p>\n<h4>10. Psacct or Acct \u2013 Monitor User Activity<\/h4>\n<p>psacct or acct tools are very useful for monitoring each users activity on the system. Both daemons runs in the background and keeps a close watch on the overall activity of each user on the system and also what resources are being consumed by them.<\/p>\n<p>These tools are very useful for system administrators to track each users activity like what they are doing, what commands they issued, how much resources are used by them, how long they are active on the system etc.<\/p>\n<p>For installation and example usage of commands read the article on <a href=\"http:\/\/www.tecmint.com\/how-to-monitor-user-activity-with-psacct-or-acct-tools\/\" target=\"_blank\">Monitor User Activity with psacct or acct<\/a><\/p>\n<h4>11. Monit \u2013 Linux Process and Services Monitoring<\/h4>\n<p><strong>Monit<\/strong> is a free open source and web based process supervision utility that automatically monitors and managers system processes, programs, files, directories, permissions, checksums and filesystems.<\/p>\n<p>It monitors services like Apache, MySQL, Mail, FTP, ProFTP, Nginx, SSH and so on. The system status can be viewed from the command line or using it own web interface.<\/p>\n<div id=\"attachment_2601\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/Monit-Monitoring.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2601\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/Monit-Monitoring.jpg\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/Monit-Monitoring.jpg 600w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/Monit-Monitoring-300x225.jpg 300w\" alt=\"Monit Linux Process Monitoring\" width=\"600\" height=\"450\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Monit Linux Process Monitoring<\/p>\n<\/div>\n<p><strong>Read More<\/strong> : <a href=\"http:\/\/www.tecmint.com\/how-to-install-and-setup-monit-linux-process-and-services-monitoring-program\/\" target=\"_blank\">Linux Process Monitoring with Monit<\/a><\/p>\n<h4>12. NetHogs \u2013 Monitor Per Process Network Bandwidth<\/h4>\n<p><strong>NetHogs<\/strong> is an open source nice small program (similar to Linux <strong>top command<\/strong>) that keeps a tab on each process network activity on your system. It also keeps a track of real time network traffic bandwidth used by each program or application.<\/p>\n<div id=\"attachment_2602\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/NetHogs-bandwidth-Monitoring.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2602\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/NetHogs-bandwidth-Monitoring.jpg\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/NetHogs-bandwidth-Monitoring.jpg 600w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/02\/NetHogs-bandwidth-Monitoring-300x225.jpg 300w\" alt=\"NetHogs Linux Bandwidth Monitoring\" width=\"600\" height=\"450\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">NetHogs Linux Bandwidth Monitoring<\/p>\n<\/div>\n<p><strong>Read More<\/strong> : <a href=\"http:\/\/www.tecmint.com\/nethogs-monitor-per-process-network-bandwidth-usage-in-real-time\/\" target=\"_blank\">Monitor Linux Network Bandwidth Using NetHogs<\/a><\/p>\n<h4>13. iftop \u2013 Network Bandwidth Monitoring<\/h4>\n<p><strong>iftop<\/strong> is another terminal-based free open source system monitoring utility that displays a frequently updated list of network bandwidth utilization (source and destination hosts) that passing through the network interface on your system. iftop is considered for network usage, what \u2018<strong>top<\/strong>\u2018 does for CPU usage. iftop is a \u2018<strong>top<\/strong>\u2018 family tool that monitor a selected interface and displays a current bandwidth usage between two hosts.<\/p>\n<div id=\"attachment_2606\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/04\/iftop.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2606\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/04\/iftop.png\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/04\/iftop.png 601w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/04\/iftop-300x193.png 300w\" alt=\"iftop - Network Bandwidth Monitoring\" width=\"601\" height=\"387\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">iftop \u2013 Network Bandwidth Monitoring<\/p>\n<\/div>\n<p><strong>Read More<\/strong> : <a href=\"http:\/\/www.tecmint.com\/install-iftop-bandwidth-monitoring-tool-in-rhel-centos-fedora\/\" target=\"_blank\">iftop \u2013 Monitor Network Bandwidth Utilization<\/a><\/p>\n<h4>14. Monitorix \u2013 System and Network Monitoring<\/h4>\n<p><strong>Monitorix<\/strong> is a free lightweight utility that is designed to run and monitor system and network resources as many as possible in <strong>Linux\/Unix<\/strong> servers. It has a built in <strong>HTTP<\/strong> web server that regularly collects system and network information and display them in graphs. It Monitors <strong>system load average and usage<\/strong>, <strong>memory allocation<\/strong>, <strong>disk driver health<\/strong>, <strong>system services<\/strong>, <strong>network ports<\/strong>, <strong>mail statistics<\/strong> (<strong>Sendmail<\/strong>, <strong>Postfix<\/strong>, <strong>Dovecot<\/strong>, etc), <strong>MySQL statistics<\/strong> and many more. It designed to monitor overall system performance and helps in detecting failures, bottlenecks, abnormal activities etc.<\/p>\n<div id=\"attachment_2884\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/command-line-tools-to-monitor-linux-performance\/monitorix-monitoring\/\" rel=\"attachment wp-att-2884\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-2884\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/04\/Monitorix-Monitoring-592x450.png\" sizes=\"auto, (max-width: 592px) 100vw, 592px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/04\/Monitorix-Monitoring-592x450.png 592w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/04\/Monitorix-Monitoring.png 863w\" alt=\"Monitorix Monitoring\" width=\"592\" height=\"450\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Monitorix Monitoring<\/p>\n<\/div>\n<p><strong>Read More<\/strong> : <a href=\"http:\/\/www.tecmint.com\/monitorix-a-lightweight-system-and-network-monitoring-tool-for-linux\/\" target=\"_blank\">Monitorix a System and Network Monitoring Tool for Linux<\/a><\/p>\n<h4>15. Arpwatch \u2013 Ethernet Activity Monitor<\/h4>\n<p><strong>Arpwatch<\/strong> is a kind of program that is designed to monitor Address Resolution (<strong>MAC<\/strong> and <strong>IP<\/strong> address changes) of<strong>Ethernet<\/strong> network traffic on a Linux network. It continuously keeps watch on Ethernet traffic and produces a log of <strong>IP<\/strong> and <strong>MAC<\/strong> address pair changes along with a timestamps on a network. It also has a feature to send an email alerts to administrator, when a pairing added or changes. It is very useful in detecting <strong>ARP<\/strong> spoofing on a network.<\/p>\n<p><strong>Read More<\/strong> : <a href=\"http:\/\/www.tecmint.com\/monitor-ethernet-activity-in-linux\/\" target=\"_blank\">Arpwatch to Monitor Ethernet Activity<\/a><\/p>\n<h4>16. Suricata \u2013 Network Security Monitoring<\/h4>\n<p><strong>Suricata<\/strong> is an high performance open source <strong>Network Security<\/strong> and <strong>Intrusion Detection<\/strong> and <strong>Prevention Monitoring System<\/strong> for <strong>Linux<\/strong>, <strong>FreeBSD<\/strong> and <strong>Windows<\/strong>.It was designed and owned by a non-profit foundation <strong>OISF<\/strong>(<strong>Open Information Security Foundation<\/strong>).<\/p>\n<p><strong>Read More<\/strong> : <a href=\"http:\/\/www.tecmint.com\/suricata-a-network-intrusion-detection-prevention-system\/\" target=\"_blank\">Suricata \u2013 A Network Intrusion Detection and Prevention System<\/a><\/p>\n<h4>17. VnStat PHP \u2013 Monitoring Network Bandwidth<\/h4>\n<p><strong>VnStat PHP<\/strong> a web based frontend application for most popular networking tool called \u201c<strong>vnstat<\/strong>\u201c. <strong>VnStat PHP<\/strong>monitors a network traffic usage in nicely graphical mode. It displays a total <strong>IN<\/strong> and <strong>OUT<\/strong> network traffic usage in<strong>hourly<\/strong>, <strong>daily<\/strong>, <strong>monthly<\/strong> and <strong>full summary<\/strong> report.<\/p>\n<p><strong>Read More<\/strong> : <a href=\"http:\/\/www.tecmint.com\/vnstat-php-frontend-for-monitoring-network-bandwidth\/\" target=\"_blank\">VnStat PHP \u2013 Monitoring Network Bandwidth<\/a><\/p>\n<h4>18. Nagios \u2013 Network\/Server Monitoring<\/h4>\n<p>Nagios is an leading open source powerful monitoring system that enables network\/system administrators to identify and resolve server related problems before they affect major business processes. With the Nagios system, administrators can able to monitor remote Linux, Windows, Switches, Routers and Printers on a single window. It shows critical warnings and indicates if something went wrong in your network\/server which indirectly helps you to begin remediation processes before they occur.<\/p>\n<p><strong>Read More<\/strong> : <a href=\"http:\/\/www.tecmint.com\/install-nagios-in-linux\/\" target=\"_blank\">Install Nagios Monitoring System to Monitor Remote Linux\/Windows Hosts<\/a><\/p>\n<h3>19. Nmon: Monitor Linux Performance<\/h3>\n<p>Nmon (stands for Nigel\u2019s performance Monitor) tool, which is used to monitor all Linux resources such as CPU, Memory, Disk Usage, Network, Top processes, NFS, Kernel and much more. This tool comes in two modes: Online Mode and Capture Mode.<\/p>\n<p>The Online Mode, is used for real-time monitoring and Capture Mode, is used to store the output in CSV format for later processing.<\/p>\n<div id=\"attachment_6618\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/12\/Nmon.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-6618\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/12\/Nmon-620x383.jpeg\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/12\/Nmon-620x383.jpeg 620w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/12\/Nmon.jpeg 681w\" alt=\"Nmon Monitoring\" width=\"620\" height=\"383\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Nmon Monitoring<\/p>\n<\/div>\n<p><strong>Read More:<\/strong> <a href=\"http:\/\/www.tecmint.com\/nmon-analyze-and-monitor-linux-system-performance\/\" target=\"_blank\">Install Nmon (Performance Monitoring) Tool in Linux<\/a><\/p>\n<h3>20. Collectl: All-in-One Performance Monitoring Tool<\/h3>\n<p><strong>Collectl<\/strong> is a yet another powerful and feature rich command line based utility, that can be used to gather information about Linux system resources such as CPU usage, memory, network, inodes, processes, nfs, tcp, sockets and much more.<\/p>\n<div id=\"attachment_6619\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/12\/Collectl.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-6619\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/12\/Collectl-620x410.jpg\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/12\/Collectl-620x410.jpg 620w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2013\/12\/Collectl.jpg 678w\" alt=\"Collectl Monitoring\" width=\"620\" height=\"410\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Collectl Monitoring<\/p>\n<\/div>\n<p><strong>Read More:<\/strong> <a href=\"http:\/\/www.tecmint.com\/linux-performance-monitoring-with-collectl-tool\/\" target=\"_blank\">Install Collectl (All-in-One Performance Monitoring) Tool in Linux<\/a><\/p>\n<p>We would like to know what kind of <strong>monitoring programs<\/strong> you use to <strong>monitor performance of your Linux servers<\/strong>? If we\u2019ve missed any important tool that you would like us to include in this list, please inform us via comments and please don\u2019t forget to share it.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div id=\"exam_announcement\"><i class=\"fa fa-book\"><\/i> <b>Download Your Free eBooks NOW<\/b> &#8211; <a href=\"http:\/\/www.tecmint.com\/10-useful-free-linux-ebooks-for-newbies-and-administrators\/\" target=\"_blank\">10 Free Linux eBooks for Administrators<\/a> | <a href=\"http:\/\/www.tecmint.com\/free-linux-shell-scripting-books\/\" target=\"_blank\">4 Free Shell Scripting eBooks<\/a><\/div>\n<div class=\"clear\"><\/div>\n<div class=\"clear\"><\/div>\n<div class=\"entry share\">\n<div class=\"entry-inner\">\n<p>If you\u2019re working as a Linux\/Unix system administrator, sure you know that you must have useful monitoring tools to monitor your computers &amp; systems, monitoring tools are very important in the job of a system administrator or a server webmaster, it\u2019s the best way to keep an eye on what\u2019s going on inside your system.<\/p>\n<p><b>Read Also<\/b>: <a href=\"http:\/\/www.tecmint.com\/command-line-tools-to-monitor-linux-performance\/\" target=\"_blank\">20 Tools to Monitor Linux Performance \u2013 Part 1<\/a><\/p>\n<div id=\"attachment_10136\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Linux-Peformance-Monitoring-Tools.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10136\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Linux-Peformance-Monitoring-Tools.jpg\" alt=\"Linux Peformance Monitoring\" width=\"549\" height=\"341\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">13 Linux Performance Monitoring<\/p>\n<\/div>\n<p>Today we\u2019re going to talk about another <strong>13 Linux monitoring tool<\/strong> that you may use to do the job.<\/p>\n<h4>21. Glances \u2013 Real Time System Monitoring<\/h4>\n<p><b>Glances<\/b> is a monitoring tool built to present as much information as possible in any terminal size, it automatically takes the terminal window size it runs on, in other words, it\u2019s a responsive monitoring tool.<\/p>\n<div id=\"attachment_10123\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Glances.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10123\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Glances.jpeg\" alt=\"Real Time Linux Monitoring\" width=\"620\" height=\"435\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Glances<\/p>\n<\/div>\n<h5>Features<\/h5>\n<ol>\n<li>Licensed under LGPL and written in Python.<\/li>\n<li>Cross-platform, it works on Windows, Mac, BSD and Linux.<\/li>\n<li>Available in most Linux official repositories.<\/li>\n<li>A It gives a lot of information about your system.<\/li>\n<li>Built using curses.<\/li>\n<\/ol>\n<p><center><ins class=\"adsbygoogle\" data-ad-client=\"ca-pub-2601749019656699\" data-ad-slot=\"9878518176\" data-adsbygoogle-status=\"done\"><ins id=\"aswift_4_expand\"><ins id=\"aswift_4_anchor\"><iframe id=\"aswift_4\" name=\"aswift_4\" width=\"200\" height=\"90\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/ins><\/ins><\/ins><\/center><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/glances-an-advanced-real-time-system-monitoring-tool-for-linux\/\" target=\"_blank\">Install Glances on RHEL\/CentOS\/Fedora and Ubuntu\/Debian<\/a><\/p>\n<h4>22. Sarg \u2013 Squid Bandwidth Monitoring<\/h4>\n<p><b>Sarg<\/b> (Squid Analysis Report Generator) is a free &amp; open-source tool which act as a monitoring tool for your Squid proxy server, it creates reports about your Squid proxy server users, IP addresses, the sites they visit beside some other information.<\/p>\n<div id=\"attachment_10124\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Sarg.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10124\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Sarg.jpeg\" alt=\"Monitor Squid Proxy Logs\" width=\"620\" height=\"430\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Sarg Monitors Squid Logs<\/p>\n<\/div>\n<h5>Features of Sarg<\/h5>\n<ol>\n<li>Licensed under GPL 2 and available in many languages.<\/li>\n<li>Works under Linux &amp; FreeBSD.<\/li>\n<li>Generates report in HTML format.<\/li>\n<li>Very easy to install &amp; use.<\/li>\n<\/ol>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/sarg-squid-analysis-report-generator-and-internet-bandwidth-monitoring-tool\/\" target=\"_blank\">Install Sarg \u201cSquid Bandwidth Monitoring\u201d Tool in Linux<\/a><\/p>\n<h4>23. Apache Status Monitoring<\/h4>\n<p><b>Apache<\/b> Module <b>mod_status<\/b> is an Apache server module that allows you to monitor the workers status of the Apache server. It generates a report in an easy to read HTML format. It shows you the status of all the workers, how much CPU each one using, and what requests are currently handled and number of working and not working workers.<\/p>\n<div id=\"attachment_10125\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Apache-Monitoring.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10125\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Apache-Monitoring.jpeg\" alt=\"Apache Monitoring in Linux\" width=\"620\" height=\"420\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Apache Status Monitoring<\/p>\n<\/div>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/monitor-apache-web-server-load-and-page-statistics\/\" target=\"_blank\">Apache Web Server Load and Page Statistics Monitoring<\/a><\/p>\n<h4>24. Monit \u2013 Linux Process and Services Monitoring<\/h4>\n<p><b>Monit<\/b> is a nice program that monitors your Linux &amp; Unix server, it can monitor everything you have on your server, from the main server (Apache, Nginx..) to files permissions, files hashes and web services. Plus a lot of things.<\/p>\n<div id=\"attachment_10126\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/monit.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10126\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/monit-620x387.png\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/monit-620x387.png 620w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/monit-1024x640.png 1024w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/monit.png 1280w\" alt=\"Linux Process Monitoring\" width=\"620\" height=\"387\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Monit: Linux Process Monitoring<\/p>\n<\/div>\n<h5>Features of Monit<\/h5>\n<ol>\n<li>Free &amp; open-source, released under AGPL and written in C.<\/li>\n<li>It can be started from the command line interface or via its special web interface.<\/li>\n<li>Very effective in monitoring all the software on your system and services.<\/li>\n<li>A nice web interface with beautiful charts for CPU and RAM usage.<\/li>\n<li>Monit can automatically take actions in emergency situations.<\/li>\n<li>A lot more..<\/li>\n<li><\/li>\n<\/ol>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/how-to-install-and-setup-monit-linux-process-and-services-monitoring-program\/\" target=\"_blank\">Install Monit Tool in RHEL\/CentOS\/Fedora and Ubuntu\/Debian<\/a><\/p>\n<h4>25. Sysstat \u2013 All-in-One System Performance Monitoring<\/h4>\n<p>Another monitoring tool for your Linux system. <b>Sysstat<\/b> is not a real command in fact, it\u2019s just the name of the project, Sysstat in fact is a package that includes many performance monitoring tools like iostat, sadf, pidstat beside many other tools which shows you many statistics about your Linux OS.<\/p>\n<div id=\"attachment_10127\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Sysstat.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10127\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Sysstat-620x381.png\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Sysstat-620x381.png 620w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Sysstat.png 664w\" alt=\"Sysstat All-in-One Linux Monitoring\" width=\"620\" height=\"381\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Sysstat: Linux Statistics Monitoring<\/p>\n<\/div>\n<h5>Features of Sysstat<\/h5>\n<ol>\n<li>Available in many Linux distributions repositories by default.<\/li>\n<li>Ability to create statistics about RAM, CPU, SWAP usage. Beside the ability to monitor Linux kernel activity, NFS server, Sockets, TTY and filesystems.<\/li>\n<li>Ability to monitor input &amp; output statistics for devices, tasks.. etc.<\/li>\n<li>Ability to output reports about network interfaces and devices, with support for IPv6.<\/li>\n<li>Sysstat can show you the power statistics (usage, devices, the fans speed.. etc) as well.<\/li>\n<li>Many other features..<\/li>\n<\/ol>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/install-sysstat-in-linux\/\" target=\"_blank\">Install Sysstat in Linux<\/a> and <a href=\"http:\/\/www.tecmint.com\/sysstat-commands-to-monitor-linux\/\" target=\"_blank\">20 Useful Commands of Sysstat<\/a><\/p>\n<h4>26. Icinga \u2013 Next Generation Server Monitoring<\/h4>\n<p>Unlike the other tools, <b>Icinga<\/b> is a network monitoring program, it shows you many options and information about your network connections, devices and processes, it\u2019s a very good choice for those who are looking for a good tool to monitor their networking stuffs.<\/p>\n<div id=\"attachment_10128\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Icinga.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10128\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Icinga.jpeg\" alt=\"Icinga Monitoring Tool\" width=\"620\" height=\"308\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Icinga Monitoring Tool<\/p>\n<\/div>\n<h5>Features of Icinga<\/h5>\n<ol>\n<li>Icinga is also free and open-source.<\/li>\n<li>Very functional in monitoring everything you may have in networking.<\/li>\n<li>Support for MySQL and PostgreSQL is included.<\/li>\n<li>Real-time monitoring with A nice web interface.<\/li>\n<li>Very expendable with modules and extensions.<\/li>\n<li>Icinga supports applying services and actions to hosts.<\/li>\n<li>A lot more to discover..<\/li>\n<\/ol>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/install-icinga-in-centos-7\/\" target=\"_blank\">Install Icinga in RHEL\/CentOS 7\/6<\/a><\/p>\n<h4>27. Observium \u2013 Network Management and Monitoring<\/h4>\n<p><b>Observium<\/b> is also a network monitoring tool, it was designed to help you manage your network of servers easily, there are 2 versions from it; Community Edition which is free &amp; open-source and Commercial version which costs \u00a3150\/year.<\/p>\n<div id=\"attachment_10129\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Observium.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10129\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Observium.jpeg\" alt=\"Linux Network Monitoring\" width=\"620\" height=\"405\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Observium: Linux Network Monitoring<\/p>\n<\/div>\n<h5>Features of Observium<\/h5>\n<ol>\n<li>Written in PHP with MySQL database support.<\/li>\n<li>Has a nice web interface to output information and data.<\/li>\n<li>Ability to manage and monitor hundreds of hosts worldwide.<\/li>\n<li>The community version from it is licensed under QPL license.<\/li>\n<li>Works on Windows, Linux, FreeBSD and more.<\/li>\n<\/ol>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/install-observium-in-centos\/\" target=\"_blank\">Observium \u2013 Network Management and Monitoring Tool for RHEL\/CentOS<\/a><\/p>\n<h4>28. Web VMStat \u2013 System Statistics Monitoring<\/h4>\n<p><b>Web VMStat<\/b> is a very simple web application programmer, that provides a real time system information usage, from CPU to RAM, Swap and input\/output information in html format.<\/p>\n<div id=\"attachment_10130\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Web-VMStat.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10130\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Web-VMStat.png\" alt=\"Web VMStat Tool for Linux\" width=\"620\" height=\"429\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Web VMStat Tool for Linux<\/p>\n<\/div>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/install-web-vmstat-in-linux\/\" target=\"_blank\">Web VMStat: A Real Time System Statistics Tool for Linux<\/a><\/p>\n<h4>29. PHP Server Monitoring<\/h4>\n<p>Unlike the other tools on this list, <b>PHP Server Monitoring<\/b> is a web script written in PHP that helps you to manage you websites and hosts easily, it supports MySQL database and is released under GPL 3 or later.<\/p>\n<div id=\"attachment_10131\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/PHP-Server-Monitor.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10131\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/PHP-Server-Monitor.png\" alt=\"PHP Server Monitor\" width=\"600\" height=\"400\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">PHP Server Monitor<\/p>\n<\/div>\n<h5>Features<\/h5>\n<ol>\n<li>A nice web interface.<\/li>\n<li>Ability to send notifications to you via Email &amp; SMS.<\/li>\n<li>Ability to view the most important information about CPU and RAM.<\/li>\n<li>A very modern logging system to log connection errors and emails that are sent.<\/li>\n<li>Support for cronjob services to help you monitor your servers and websites automatically.<\/li>\n<\/ol>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/install-php-server-monitor-in-arch-linux\/\" target=\"_blank\">Install PHP Server Monitoring Tool in Arch Linux<\/a><\/p>\n<h4>30. Linux Dash \u2013 Linux Server Performance Monitoring<\/h4>\n<p>From its name, \u201c<b>Linux Dash<\/b>\u201d is a web dashboard that shows you the most important information about your Linux systems such as RAM, CPU, file-system, running processes, users, bandwidth usage in real time, it has a nice GUI and it\u2019s free &amp; open-source.<\/p>\n<div id=\"attachment_10132\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/linux-dash.jpeg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10132\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/linux-dash.jpeg\" alt=\"Linux Dash Tool\" width=\"618\" height=\"450\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Linux Dash Tool<\/p>\n<\/div>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/monitors-linux-server-performance-remotely-using-web-browser\/\" target=\"_blank\">Install Linux Dash (Linux Performance Monitoring) Tool in Linux<\/a><\/p>\n<h4>31. Cacti \u2013 Network and System Monitoring<\/h4>\n<p><b>Cacti<\/b> is nothing more than a free &amp; open-source web interface for RRDtool, it is used often to monitor the bandwidth using SNMP (Simple Network Management Protocol), it can be used also to monitor CPU usage.<\/p>\n<div id=\"attachment_10133\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Cacti.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10133\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Cacti.png\" alt=\"Cacti Network Monitoring\" width=\"530\" height=\"394\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Cacti Network Monitoring<\/p>\n<\/div>\n<h5>Features of Cacti<\/h5>\n<ol>\n<li>Free &amp; open-source, released under GPL license.<\/li>\n<li>Written in PHP with PL\/SQL.<\/li>\n<li>A cross-platform tool, it works on Windows and Linux.<\/li>\n<li>User management; you may create different users accounts for Cacti.<\/li>\n<\/ol>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/install-cacti-network-monitoring-on-rhel-centos-6-3-5-8-and-fedora-17-12\/\" target=\"_blank\">Install Cacti Network and System Monitoring Tool in Linux<\/a><\/p>\n<h4>32. Munin \u2013 Network Monitoring<\/h4>\n<p><b>Munin<\/b> is also a web interface GUI for RRDtool, it was written in Perl and licensed under GPL, Munin is a good tool to monitor systems, networks, applications and services. It works on all Unix-like operating systems and has a nice plugin system; there are 500 different plugin available to monitor anything you want on your machine. A notifications system is available to send messages to the administrator when there\u2019s an error or when the error is resolved.<\/p>\n<div id=\"attachment_10134\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Munin.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-10134\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Munin-620x396.png\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" srcset=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Munin-620x396.png 620w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Munin-1024x654.png 1024w, http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/Munin.png 1056w\" alt=\"Munin Network Monitoring\" width=\"620\" height=\"396\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Munin Network Monitoring<\/p>\n<\/div>\n<p><b>Read More<\/b>: <a href=\"http:\/\/www.tecmint.com\/install-munin-network-monitoring-in-rhel-cent-6-3-fedora-17\/\" target=\"_blank\">Install Munin Network Monitoring Tool in Linux<\/a><\/p>\n<h4>33. Wireshark \u2013 Network Protocol Analyzer<\/h4>\n<p>Also, unlike all the other tools on our list, <b>Wireshark<\/b> is an analyzer desktop program which is used to analyze network packets and to monitor network connections. It\u2019s written in C with the GTK+ library and released under the GPL license.<\/p>\n<div id=\"attachment_10135\" class=\"wp-caption aligncenter\">\n<p><a href=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/wireshark.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-10135\" src=\"http:\/\/www.tecmint.com\/wp-content\/uploads\/2014\/12\/wireshark.jpg\" alt=\"Wireshark Network Analyzer\" width=\"600\" height=\"395\" data-lazy-loaded=\"true\" \/><\/a><\/p>\n<p class=\"wp-caption-text\">Wireshark Network Analyzer<\/p>\n<\/div>\n<h5>Features<\/h5>\n<ol>\n<li>Cross-platform: it works on Linux, BSD , Mac OS X and Windows.<\/li>\n<li>Command line support: there\u2019s a command line based version from Wireshark to analyze data.<\/li>\n<li>Ability to capture VoIP calls, USB traffic, network data easily to analyze it.<\/li>\n<li>Available in most Linux distributions repositories.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>performance kontrol sudo top sudo VmStat &nbsp; 1. Top \u2013 Linux Process Monitoring Linux Top command is a performance monitoring program which is used frequently by many system administrators to monitor Linux performance and it is available under many Linux\/Unix like operating systems. The top command used to dipslay all the running and active real-time [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[1],"tags":[],"class_list":["post-5649","post","type-post","status-publish","format-standard","hentry","category-genel","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"aioseo_notices":[],"views":1956,"_links":{"self":[{"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/posts\/5649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/comments?post=5649"}],"version-history":[{"count":2,"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/posts\/5649\/revisions"}],"predecessor-version":[{"id":5651,"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/posts\/5649\/revisions\/5651"}],"wp:attachment":[{"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/media?parent=5649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/categories?post=5649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.karadere.com\/blog\/wp-json\/wp\/v2\/tags?post=5649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}