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  • How to fix error: "Following domain(s) will not be covered by selected HTTPS certificate."

    I am trying to get my ActiveSync setup to work across my Sophos XG 18.5.3 MR-3 install. I follow the recipe found at https://support.sophos.com/support/s/article/KB-000040209?language=en_US When I try to save the firewall rule mentioned towards the…
  • WAF Rewrite HTML option disables javascript

    Hello guys. I am using waf and I noticed that when Rewrite HTML is checked javascript is not loading. For example I have a phpsysinfo script running. When I access it, while it is supposed to use bootstrap to display the page, it redirects me to the…
  • WAF access via B2B (with NAT) not working

    Discovered a scenario that I can't get working in Azure, which seems like a limitation on the XG. We setup a policy-based VPN to one of our customers which needs to access one of our web-apps. The customer requires that RFC-1918 is not used in VPN traffic…
  • Websocket request not passing through WAF HTTPS traffic

    We have a web server that sends websocket requests when being accessed. We are able to make it work through HTTP traffic, but when we got an SSL certificate to make it HTTPS, the websocket requests fails. I have tried using Path-Specific Routing to…
  • Add server across site-to-site VPN to Protected web servers

    We have a Sophos 18.5 firewall. Behind this we have two identical servers (WEB01 & WEB05) running a website. In the WAF rule, I can toggle between the two servers in the "Protected Servers" Web server list just fine and the website continues to work.…
  • Webserver protection with "nocanon" option required for matrix-synapse

    Dear Sophos, I am operating a matrix.org synapse backend, and for federation to work properly it is important that the apache virtual host is configured with the "nocanon" option. My assumption: Normally, mod_proxy will canonicalise ProxyPassed URLs…
  • publish two web server app using two IP publique

    I have two public IP addresses behind a sophos XG, I need to publish two web servers in the DMZ zone. I created the publishing rules for both servers. only access to web server 1 is allowed from IP1 address. access to web server 2 from IP2 address is…
  • Too many logs in WAF

    Hello eveyrone, I have created a WAF rule on all my Website, which is in "moitor" mode : I went to reverseproxy.log to see if I had errors, warning... and I have many many logs like : [cookie:error] [form_hardening:error] [security2:error…
  • Block specify IP to a specify path WAF

    Hello, I would like to do this : Allow all internet v4 IP on www.mywebsite.fr Allow specify IP on www.mywebsite.fr/admin Is it possible with Sophos XG 18 ? Thank you very much.
  • Revisit: Microsoft Teams Calendar through WAF

    Hello. This is a follow upto an old thread from about a year ago: https://community.sophos.com/utm-firewall/f/network-protection-firewall-nat-qos-ips/126571/microsoft-teams-calendar-through-waf (that thread is now locked) I've tried again to enable…
  • Toggle web server in WAF rule via API

    Hello, I am trying to set up kind of a "blue-green" deployment environment for our website. We already have a working web server and a firewall (WAF) rule pointing to this web server. I've added a second "web server" and I now see it in the list under…
  • WAF log : too many logs

    Hello eveyrone, I have created a WAF rule on all my Website, which is in "moitor" mode : I went to reverseproxy.log to see if I had errors, warning... and I have many many logs like : [cookie:error] [form_hardening:error] [security2:error…
  • Using WAF with servers own certificate?

    It seems that it is impossible to create WAF rules for web servers with https so that the web server would use its own certificate instead of cert from the firewall. Is it really so and is there any trick going around this problem?
  • Web Server with HTTPS encryption showing different responses from both internal and external network

    We have a new SSL certificate installed in Sophos for a website we are hosting. When I configure the web server with an HTTP encryption, there is no issue. But when I change it to HTTPS encryption, these are the issues we are having: From internal network…
  • Sophos WAF - rate limiting

    We have a Sophos 18.5.1 firewall. Can it prevent brute force attempts such as the one below? If so please explain how to go about setting it up -- elaboration goes a long way! These brute force attempts are causing our site to show 503 Service Unavailable…
  • Bad request

    Hello! We are using sophos Web Server Protection to proxy our websites, One of our editors is suffering from this error: Sometimes get this message after 2 mins of usage, sometimes 15-30 mins, after this tried to flush all caches (10x times a day!)…
  • Size of a request header

    We have XGS3100 and in one web application, the following error is displayed in the browser when passing credentials: Bad Request Your browser sent a request that this server could not understand. Size of a request header field exceeds server limit…
  • Webserver with public IP not accessible

    Hi, I have one problem with my webserver. It´s an VM, with only a public IP, so no internal private IP, that it can be translated to. I set up firewall XG from ground, since I was expecting problems with one VLAN, that wasn´t accessable anymore, even…
  • WAF: No web server configured

    I have a fresh install of Sophos XG Firewall Home (SFOS 18.5.2 MR-2-Build380) Everything is working except I can not get the WAF to recognize that I have created as web server. I created a host in Host and Services ! created a web Server in Web…
  • How to easy update a certificate that is used in WAF?

    Hello, Is there a way to update a certificate that is used in WAF Rules without touching every WAF rule?
  • WAF configuration really working for recent Exchange(2016/2019)/RD Gateway (2016/2019/2022)

    Hello, Does the Sophos XG/XGS WAF (18.5) really work with recent Exchange and RD Gateway (2016/2019/2022) ? I have searched in community, in manuals, all over the internet, but I didn't find any "clear" answer, article or procedure with a WAF configuration…
  • WAF Issue. Error during SSL handshake

    hi, i am configuring WAF , so that server which is behind the firewall woudl be access over interner securely. i configured WAF, getting following error Proxy Error The proxy server could not handle the request. Reason: Error during SSL handshake…
  • WAF with radius authentication and Duo proxy problem

    Hi all, I have the exact problem as described by this member below. Basically, I have the radius and duo authentication proxy working fine for the user portal and SSL VPN but it won't work with WAF. The WAF authentication form seems to send multiple…
  • Domestic HTTP Traffic Redirect to HTTPS

    Hello all I need to reidrect all external HTTP traffic into HTTPS traffic before it reaches the clients. this need to be done without the need of any action needed from the clients side. is this feasible ? and do we need to purchase an SSL certificate…
  • WAF log after pentestig

    Hello, We did a Pentesting for 5 days on your Website which are behind XG WAF Firewall. In the firewall rule, Advanced, Protection, We create a protection policy with is in Monitor Mode So now I would like to see if we have log of the Pentesting…