Category about Networking

[2021-01-27 05:46:00] Proxmox Bridge and Nat Interfaces Example [Networking / Proxmox]
This script is for a proxmox host to set up 2 bridges. 1 provides static ip 4 and 6 to vservers 1 provides NAT routed connection Start of /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback...
[2021-02-16 19:22:39] Postfix Backup Mailserver [Networking / Mail]
This is an easy postfix configuration to backup all emails going to specified domains until the master server is online again. Postfix Configuration [replace yourhostname with your hostname]: smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated reject_unauth_destination myhostname = yourhostname alias_maps = hash:/etc/aliases alia...
[2021-02-09 09:24:37] Forward Port with IPTables [Networking / IpTables]
This adds a rule to forwars port 1022 to port 22 (SSH) an another internal IP. iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 1022 -j DNAT --to This removes the previous commands changes: iptables -t nat -D PREROUTING -i vmbr0 -p tcp --dport 1022 -j DNAT --to ...
[2020-07-25 18:04:25] IpTables Flush And Allow All Traffic [Networking / IpTables]
USE WITH OWN RISK - ALL FIREWALL RULES WILL BE DELETED IPv4 iptables -F iptables -X iptables -t nat -F iptables -t nat -X iptables -t mangle -F iptables -t mangle -X iptables -P INPUT ACCEPT iptables -P FORWARD ACCEPT iptables -P OUTPUT ACCEPT IPv6 ip6tables -F ip6tables -X ip6tables -t nat -F ip6tables -t nat -X ip6tables -t mangle -F ip6tables -t...
[2021-08-16 16:24:41] Simple Firewall Setup Script [Networking / IpTables]
Attention! This script has been written 2010 and could be outdated. Start.SH - Start Firewall #!/bin/sh #Start Firewall #Copyright by Xeno # echo echo Firewall Starter echo echo Die Firewall wird gestartet und der Port 22 SSH echo für die Fernkontrolle freigegeben. echo echo Wollen sie die Firewall nun aktivieren? y/n read RESPONSE echo if...
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