![]() ![]() Htop is a much advanced interactive and real-time Linux process monitoring tool, which is much similar to Linux top command but it has some rich features like a user-friendly interface to manage processes, shortcut keys, vertical and horizontal views of the processes, and much more. While in present-day netstat has been deprecated in favor of the ss command, you may still discover netstat in your networking toolkit. Netstat – Monitor Linux Network Connections Udp 0 0 tecmint:bootpc _gateway:bootps ESTABLISHED Tcp 0 0 localhost:postgres 0.0.0.0:* LISTEN Proto Recv-Q Send-Q Local Address Foreign Address State # netstat -a | moreĪctive Internet connections (servers and established) ![]() It is a very useful tool for every system administrator to monitor network performance and troubleshoot network-related problems. ![]() The netstat is a command-line tool for monitoring incoming and outgoing network packet statistics as well as interface statistics. Tcpdump: verbose output suppressed, use -v or -vv for full protocol decode tcpdump is almost available in all major Linux distributions. It also provides an option to save captured packages in a file for later analysis. The tcpdump command is one of the most widely used command-line network packet analyzer or packet sniffer programs that is used to capture or filter TCP/IP packets that are received or transferred on a specific interface over a network. ![]() # lsofĬOMMAND PID TID TASKCMD USER FD TYPE DEVICE SIZE/OFF NODE NAME The most common format for lsof command is. With this command, you can easily identify which files are in use. One of the main reasons for using this command is when a disk cannot be unmounted and displays the error that files are being used or opened. The open files included are disk files, network sockets, pipes, devices, and processes. The lsof command is used in many Linux/Unix-like systems to display a list of all the open files and processes. ![]()
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