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firewall iptables

  1. Thomas Wilhelmi

    Issue Firewall and IPv6

    Hi, I have IPv4 and IPv6 on my server. And I want to harden my firewall-settings. So I set the built-in rule System policy for incoming traffic to deny. And I defined all wanted traffic in rules. But this has the effect that all IPv6-traffic is blocked. What can I do that tis works correctly...
  2. Kulturmensch

    Resolved OpenVPN Firewall configuration

    OpenVpn is only working on my v-server (Ubuntu 20.04.3 LTS / Plesk Osidian) when I configure iptables with the command: iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o venet0 -j MASQERADE After server reboot this rule has disappeared and I have to use the command again via ssh. Is there any...
  3. D

    Issue Plesk Firewall IP-Whitelist does not work correctly

    Plesk Obsidian 18.0.21 Update Nr. 5 Today i discovered some huge security issue with Plesk Firewall. Because we got a new static ip adress, i discovered "Allow from selected sources, deny from others" does not work. My old static ip adress was whitelisted, but i got still full access with the...
  4. P

    Resolved Bug in plesk firewall script /opt/psa/var/modules/firewall/firewall-active.sh

    There is a bug in the version checking part of the firewall script /opt/psa/var/modules/firewall/firewall-active.sh The line: iptables_version=`/sbin/iptables --version | awk -F '.' '{print $2$3}'` does return the value 60 on version 1.6.0 Thus the version check if [ $iptables_version -gt 420 ]...
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