Encountered a fun riddle recently whereby on a Fedora 34 system I needed to locate all ethernet interfaces on a system that are obtaining a DHCP address, then after the first reboot create a static IP address. I am a big fan of looking thru the Linux pseudo filesystem in /sys In this instance I
Read MoreSometimes you want a quick way to verify all ethernet network adapters that are seen by the kernel at boot time. I find going directly to the pseudo filesystem is the fastest. For example. Similarly, you an modify the egrep accordingly if you want to view wifi and ethernet adapters and exclude any bridge or
Read MoreThere are situations where you may be working on Linux based system, and telnet, ncat or nmap does not exist. In Linux, you can route a test thru the protocol, destination IP address, and destination port using the “/dev” linux ‘pseudo device’ The ‘telnet’ command we are all familiar with is essentially a wrapper for
Read MoreThere are times you may be on a system and for whatever insane reason, netstat is not installed. Here is how you can obtain interface information without netstat Example results
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