Linux, Windows, Security, Programming, Network Tutorials
[rps-include post=6632] Before start any port, script or version scan hosts should be discovered. Only discovered hosts will be scanned by port,service or version. List Scan List scan will do not send any packet to the targets and only show dns names of the targets by resolving them. $ nmap -sL 216.58.212.37 We use -sL flag and … Read more
Linux mtr command provides both functionality of traceroute and ping commands. mtr can provide reports and xml, json, csv output. There is also Gtk interface provided for mtr . Interactive Traceroute One of the simple use case for mtr is providing the remote hostname or IP address we want to traceroute. This will open a new interactive window which shows each … Read more
Windows operating system provides some basic tools to troubleshoot the network. tracert is one of the most used tools. tracertcommand simply traceroute to the given IP address or remote host. tracert mainly provides the route to the remote IP address. tracert Command Syntax Syntax of tracert command is like below. Traceroute with tracert Command In this example, … Read more
Linux network stack is very powerful. Network stack provides a lot of functionalities where most of the enterprise network products can not offer. Here we will look basic and everyday network administration commands. Check Network and Internet Connectivity Network connectivity can be checked easily with ping and telnet tools. One method to check internet connectivity … Read more
The network is an important part of the system administration. Because without a network the server has nothing to do. While administrating Linux servers troubleshooting network is very important. When a network problem occurs in a Linux server first step is checking network services and the route information. Network services can be checked with systemctl … Read more
While trying to ping or connect a remote host I can an error “no route to host”. How can I debug this error and solve it? As we know IP networks are constructed hop by hop which means there are different intermediate routers transmit packets between two remote hosts. These routers decide the route to … Read more