What is the command to display a list of open ports on a Debian server? I tried netstat -a | egrep 'Proto|LISTEN' but I would like something more specific that actually lists the port number.

Oct 7, 2023 · I'm trying to change my DNS settings on my Debian 12 VPS, and by this I mean, I want to use a public resolver like 1.1.1.1 instead of my VPS host's resolver. I remember in Debian 11 I could …

Jun 9, 2009 · How do I backport a sid package to testing or stable? Install the Debian source (and the development tools, especially debhelper, devscripts, and build-essential), and then build the …

Set FQDN I'm using Debian 7 and this is what worked for me; thanks to Fernando Ribeiro. sudoedit /etc/hostname server # here's where you put the server's host name activate hostname sudo …

Aug 1, 2024 · The environment is Debian, although the answer will apply to all distributions.

Aug 24, 2022 · apt install dhcpcd-base apt remove isc-dhcp-client isc-dhcp-common systemctl restart networking To manually renew a lease, you can run dhcpcd -n [INTERFACE], according to this …

Jul 25, 2021 · As you have seen, you can't access ca-certificates.crt. The curl command tries to access the certificate bundle with your user, but fails. You can fix this by using chmod. 755 may be used in …

Nov 30, 2010 · For Debian based systems, ethtool is not installed by default. But mii-tool is, as part of the essential "net-tools" package. So this was the best solution for me.

On Debian Wheezy, ulimit -a gives: open files (-n) 1024 I add this to /etc/security/limits.conf * hard nofile 64000 then reboot. And ulimit -a still

Posted 08-19-2021 at 02:38 PM by craigevil Updated 10-02-2025 at 07:33 AM by craigevil (Raspberry Pi OS Trixie Released)