Archives for November 2022

A powerful tool for gathering information and testing name resolution. It is installed on most Linux distributions. Output is displayed in an answer section. The output will include the IP address mapped to the domain name, the DNS server that answered the query, and how long it took to receive that answer. Syntax The basic […]

The ss (socket state) command is an information gathering utility similar to netstat but provides simpler output and syntax. The ss tool can provide information about established TCP connections or which ports the system may be listening on for inbound connections. This can help you diagnose problems related to clients and servers being unable to […]

The ss (socket state) command is an information gathering utility similar to netstat but provides simpler output and syntax. The ss tool can provide information about established TCP connections or which ports the system may be listening on for inbound connections. This can help you diagnose problems related to clients and servers being unable to […]

The tracepath command is a simplified version of traceroute that does not require administrative privileges to run. It also contains fewer options. Many routing issues are the result of misconfigured routing tables. These issues can usually be fixed by updating the routing tables. However, you must first identify what is causing the issue. Commands like […]

The tracepath command is a simplified version of traceroute that does not require administrative privileges to run. It also contains fewer options. Many routing issues are the result of misconfigured routing tables. These issues can usually be fixed by updating the routing tables. However, you must first identify what is causing the issue. Commands like […]

The traceroute command is used to report the network path between the source and destination computers, including any routers the connection uses. The process of a packet traveling from one router to the next is called a hop. The traceroute command therefore outputs each hop along the path. This is particularly effective when troubleshooting Internet […]

The traceroute command is used to report the network path between the source and destination computers, including any routers the connection uses. The process of a packet traveling from one router to the next is called a hop. The traceroute command therefore outputs each hop along the path. This is particularly effective when troubleshooting Internet […]

One of the earliest parts of network troubleshooting is sending test packets between two systems. This is done using a TCP/IP utility called ping. The ping command will generate a response request from the sending computer and should receive a reply from the destination computer. Possible outcomes of the ping command include: Reply from [host]: […]

Linux provides a command, xclip, that connects X selections to stdin and stdout. You can therefore insert copy and paste operations into pipelines and other combined commands. For example, you may have copied text into an application like this: Run a Linux command and redirect its output to a file. View the file. Use your […]

Linux provides a command, xclip, that connects X selections to stdin and stdout. You can therefore insert copy and paste operations into pipelines and other combined commands. For example, you may have copied text into an application like this: Run a Linux command and redirect its output to a file. View the file. Use your […]