IPS problem "OS-LINUX Linux Kernel Netfilter iptables-restore Stack-based Buffer Overflow"

Hi All, hope you can help. Ive recently been getting a lot of alerts with this as can be seen in the image below. searching with some of the IP addresses on greynoise it shows it as commonly seen and...
SDWAN and Loopback NAT

Hi, I've got the following case on a customer site: Internal webserver on LAN, needs to be accessed from same or different internal LAN on the external IP, normally I use a loopback NAT rule and this...
v21 Let's Encrypt Cert creation and renewal fails, whan NAT Rule for HTTP/HTTPS exists

On one of our XGS-firewalls, we need a NAT rule for HTTP/HTTPS. On this firewall, it's not possible to create or renewal a Let's Encrypt Cert. We need to disable the NAT rule, then it works to create...
Port Freigabe - Eingrenzung auf Herkunft?

Hallo Zusammen, ich würde gerne in der Sophos XGS107 eine Portfreigabe für einen Telefoncloudanbieter einrichten. Welche Ports das sind, wird hier sehr gut beschrieben. https://www.easybell.de/hilfe...
Allow external IP range and ports

Hi all, We are having a few problems with our VOIP phones. I believe it may be to the firewall, but I not 100% sure. I need to allow an IP address range and some ports. I have created a firewall...