Category Archives: Networking

Display ethernet devices on a Fedora system using the Linux Pseudo Filesystem and create a static IP Address

Posted on September 11, 2023 by dsg_admin

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 … Continue reading →

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List only ethernet Network Adapters on Debian/Fedora

Posted on September 7, 2023 by dsg_admin

Sometimes 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 … Continue reading →

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Telnet to a port on a remote machine without ncat or telnet, or nmap

Posted on May 19, 2022 by dsg_admin

There 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 … Continue reading →

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Obtain TCP Network netstat output without netstat

Posted on May 19, 2022 by dsg_admin

There 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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