Informatique 31 mars 2020 SB 8 Linux Nslookup Commands to Troubleshoot DNS nslookup is a command-line administrative tool for testing and troubleshooting DNS servers (Domain Name Server). It is used to query specific DNS resource records (RR) as well.
Informatique 5 mars 2020 SB How to change the ssh port on Linux or Unix server – nixCraft Explains how to change the ssh port on Linux or Unix operating system using command line including firewall and SELinux configuration options.
