https://wiki.heidix.li/ 2026-04-09T19:29:29+00:00 https://wiki.heidix.li/ https://wiki.heidix.li/lib/tpl/bootstrap3/images/favicon.ico text/html 2025-08-20T14:29:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.heidix.li/doku.php?id=linux:misc&rev=1755700149&do=diff Linux | Networking Common Linux Commands User Management # add an unprivileged user sudo useradd -m -G users ${username} # -- create a system account and a group with the same name as the user, and add the user to this group sudo useradd --system --user-group ${username} # add user to group # -- alternative: $ gpasswd -a ${username} ${groupname} sudo usermod -a -G ${groupname} ${username} # add user to sudo group sudo usermod -aG sudo ${username} # delete user sudo userdel ${username}… text/html 2023-11-15T01:00:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.heidix.li/doku.php?id=linux:networking&rev=1700010000&do=diff Networking ## ping errors $dpkg-reconfigure resolvconf## forward ipv4 ## check ipv4 settings $ sysctl -a | grep ip_forward # net.ipv4.ip_forward = 0 # net.ipv4.ip_forward_use_pmtu = 0 $ sudo nano /etc/sysctl.conf < /etc/sysctl.conf > net.ipv4.ip_forward=1 ## -- alternative (temporary) # $ sysctl -w net.ipv4.ip_forward=1 text/html 2025-09-06T16:22:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.heidix.li/doku.php?id=linux:tailscale&rev=1757175739&do=diff Tailscale in a Proxmox lxc container Preparation Allow container to have tunnel access nano /etc/pve/lxc/lxc_container_name.conf # PVE >= 7.0 lxc.cgroup2.devices.allow: c 10:200 rwm lxc.mount.entry: /dev/net dev/net none bind,create=dir # PVE < 7.0 lxc.cgroup.devices.allow: c 10:200 rwm lxc.mount.entry: /dev/net dev/net none bind,create=dir chown 100000:100000 /dev/net/tun pct start lxc_container_name