Linux Network Monitoring Commands

Linux find the memory used by a program process using pmap command.

Linux network monitoring commands.

The ping command works by sending an icmp echo request to check the network connectivity. Monitoring of network traffic in linux using iptraf command. Than to start monitoring the network run the following command 2 tcptrack command. Nmon short for nigel s monitor is a popular open source tool to monitor linux system performance.

A handful of common tools only operate on windows pandora or other systems but most network monitoring tools run on linux systems since linux with its higher degree of user input and easily recodeable security bugs is often the choice for it specialists who wish. Ntop and darkstat are some of the basic web based network monitoring tools available for linux. Though this list accounts for both open source and closed source products it focuses on linux based network monitoring tools. Nethogs is an open source network monitoring software similar to linux top command but a small net top tool which helps you to monitor linux network traffic and bandwidth not breaking the traffic down per subnet or protocol rather grouping it by the network bandwidth process.

The top command used to dipslay all the running and active real time processes in ordered list and updates it regularly. Tcptrack captures packets calculate network bandwidth for each tcp connection it used pcap library to do so. Iptraf shows summer traffic based on the traffic protocol. Linux command line monitoring.

Nload is a another simple easy to use command line tool for monitoring network traffic and bandwidth usage in real time. You can use it to check whether or not a specific ip address can be reached. This network monitoring software is helpful to find out which. Top linux process monitoring.

Alternatively web based monitoring tools can also be used for the same task. Nmon watches the performance information for several subsystems such as processor utilization memory utilization run queue information disk i o statistics network i o statistics paging activity and process metrics. However these need the user to login to the remote server over ssh. Netstat linux network and statistics monitoring tool netstat command displays network connections routing tables interface statistics masquerade connections and multicast memberships.

Iptraf gives detailed information as compare to iftop s command. Nload displays network usage. Check network connectivity using the ping command. Netstat tulpn netstat nat 12.

Those were a few handy commands to quickly check the network bandwidth on your linux server. Iftop display bandwidth usage install iftop in linux yum install epel release on rhel centos yum install iftop apt install iftop on debian ubuntu 3. It shows the summer in its output for tcp udp icmp ip traffic. This command is quite similar to iftop command.

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. Ss network statistics.