Here is a bash command to get name of ethernet network interface: ip link | awk -F: ‘$0 !~ "lo|tun|vir|wg|wl|^[^0-9]"{print $2;getline}’ | awk ‘{$1=$1};1’ip link | awk -F: ‘$0 !~ "lo|tun|vir|wg|wl|^[^0-9]"{print $2;getline}’ | awk ‘{$1=$1};1’ It will exclude lo (local), tun0 (openvpn), wg0 (wireguard), wl* (wireless), etc. If you have multiple ethernet network interface and […]
Here are “iptables -S” rules for OpenVPN server: -P INPUT ACCEPT -P FORWARD ACCEPT -P OUTPUT ACCEPT -A INPUT -i tun0 -j ACCEPT -A INPUT -i ens2 -p udp -m udp –dport 1194 -j ACCEPT -A FORWARD -i tun0 -o ens2 -j ACCEPT -A FORWARD -i ens2 -o tun0 -j ACCEPT-P INPUT ACCEPT -P FORWARD […]
Here are “iptables -S” rules for WireGuard VPN server: -P INPUT ACCEPT -P FORWARD ACCEPT -P OUTPUT ACCEPT -A FORWARD -i ens2 -o wg0 -j ACCEPT -A FORWARD -i wg0 -j ACCEPT-P INPUT ACCEPT -P FORWARD ACCEPT -P OUTPUT ACCEPT -A FORWARD -i ens2 -o wg0 -j ACCEPT -A FORWARD -i wg0 -j ACCEPT You […]
Here is how to install WireGuard VPN in Debian Buster in 60 seconds: apt-get update; apt-get dist-upgrade -y wget https://raw.githubusercontent.com/angristan/wireguard-install/master/wireguard-install.sh -O wireguard-install.sh chmod +x wireguard-install.sh ./wireguard-install.shapt-get update; apt-get dist-upgrade -y wget https://raw.githubusercontent.com/angristan/wireguard-install/master/wireguard-install.sh -O wireguard-install.sh chmod +x wireguard-install.sh ./wireguard-install.sh Then simply follow instructions, that’s all. I am attaching the .sh file also here (in case it […]
With “df -h” you may get like if all is fine, however… This generally is an inodes issue, try to run this: df -idf -i And you should see which partition has no space left. Then try to run this command to know the real directory size: du -sh /path/*du -sh /path/* Once you know […]
Here is how to install OpenVPN v2.4.7+ in Debian Buster in 60 seconds: apt-get update; apt-get dist-upgrade -y wget https://raw.githubusercontent.com/Angristan/openvpn-install/master/openvpn-install.sh -O debian10-vpn.sh chmod +x debian10-vpn.sh ./debian10-vpn.shapt-get update; apt-get dist-upgrade -y wget https://raw.githubusercontent.com/Angristan/openvpn-install/master/openvpn-install.sh -O debian10-vpn.sh chmod +x debian10-vpn.sh ./debian10-vpn.sh Then simply follow instructions, that’s all. I am attaching the .sh file also here (in case it […]
The best and safest way to allow only specific IP addresses to use your VPN is by using iptables. First you need to add your accept (allow) rules and then you add a rule to drop (deny) all other traffic, example: iptables -A INPUT -s 1.2.3.4/32 -i eth1 -p udp -m udp –dport 1194 -j […]
This bash command will print all files older than 3 months: find /path/to/root/folder/*.log -type f -mtime "+$(( ( $(date ‘+%s’) – $(date -d ‘3 months ago’ ‘+%s’) ) / 86400 ))" -printfind /path/to/root/folder/*.log -type f -mtime "+$(( ( $(date ‘+%s’) – $(date -d ‘3 months ago’ ‘+%s’) ) / 86400 ))" -print Use -delete to […]
This bash command will print all empty directories: find /path/to/root/folder/ -type d -empty -printfind /path/to/root/folder/ -type d -empty -print Use -delete to delete all matches: find /path/to/root/folder/ -type d -empty -deletefind /path/to/root/folder/ -type d -empty -delete
If you get this message after apt-get update on a Debian server: N: Repository ‘http://mirrors.online.net/debian buster InRelease’ changed its ‘Version’ value from ‘10.4’ to ‘10.5’N: Repository ‘http://mirrors.online.net/debian buster InRelease’ changed its ‘Version’ value from ‘10.4’ to ‘10.5’ Then just run this once: apt-get update –allow-releaseinfo-changeapt-get update –allow-releaseinfo-change