• Can't connect Shelly to Homeassistant through different Sophos UTM VLANs

    Hey everyone, i have a problem here which turns out to be my final boss. What am I planning to do? I run two Sophos UTM firewalls at home, a UTM 320 which manages the LAN and an SG115 which manages the WLAN. I switched to VLAN operation, before…

  • DNS log files

    Hello, I'm a beginner on Sophos UTM and I'm wondering where is the DNS log file where I can find all the logs regarding the requests that have been done between my Firewall Sophos and the DNS server. Thank you, Antonin

  • UTM9 (9.510-5) - Single device (iPhone 5S) cannot resolve IP / DNS (all other devices do) of internet device

    Hi, I'm struggling to find the reason why a single device (iPhone 5S) cannot resolve DNS when all other devices on the (home) LAN can. Background Running UTM 9.510-5 The pre-existing LAN has some 14 devices (NAS, Windows 10, AppleTV, iPad, iPhone…

  • Not all IPs are resolved to DNS names in logs?

    I've set up reverse DNS for our network, and Sophos (being the primary DNS) has the correct forwarding to our network DC (which holds the reverse records). Now most of the time the UTM logs (be it actual logs, information in the flow monitor or the…

  • Random websites stop loading - DNS ??

    I've been fighting an issue for months where random websites stop loading with ERR_CONNECTION_ABORTED or ERR_CONNECTION_RESET When this occurs, all other sites function fine. I've turned off almost every feature on the UTM9 without resolution. My…

  • DNS issue after UTM reboot

    Hello, I experience some issues with Sophos UTM 9 after a reboot. I am connecting to ISP via pppoe , if the system rebooted I do not have a connection to internet even if the pppoe interface is showing to be up. If i reconnect the interface everything…

  • How to add a network definition DNS host for a hostname which domain has already existing host definitions in UTM DNS?

    I have a domain, say mydomain.com . I have configured a static host for fw. mydomain.com to 192.168.1.1 in the UTM DNS. How can I configure another host which is a part of the same domain, say bastion2. mydomain.com as a DNS host, telling UTM to look…

  • How can I find out how many and what are the devices IPs currently connected to LAN

    Under Wireless Protection I Can click at Wireless Clients to see what clients are connected to the WiFi. Can I do the same for LAN devices? I do have DHCP enabled on the UTM.

  • RE: UTM network service architecture documentation

    The reason I am asking is that there is an internet firewall in front of the UTM in my setup and I wanted to avoid having to reverse engineer the filter rules needed on the outer firewall. It seems that the default (factory set) network protection rules…

  • UTM network service architecture documentation

    Can somebody please point me to a documentation of the UTM network service architecure? What I am looking for is a description of the interaction of the UTM appliance, the Endpoint agents and the internet services provided by Sophos (e.g. broker) especially…

  • RE: UTM 9.3 Dynamic DNS Service - Need Help with Configurations and Any Caveats

    Maria Nalivayko: I was able to update the IP address for '@' in browser by following the guide provided in this article https://www.namecheap.com/support/knowledgebase/article.aspx/29/11/how-do-i-use-the-browser-to-dynamically-update-hosts-ip Maria…

  • DNS resolution failure from UTM

    I'm getting DNS failures on my UTM that are wreaking havoc with all systems. Sample DNS logs: 2016:01:11-00:00:08 ravenna named[4507]: error (network unreachable) resolving 'passthrough6.fw-notify.net/A/IN': 199.85.127.10#53 2016:01:11-00:00:08…

  • DNS Configuration question

    I recently had an issue with my workstations not being able to get online. The problem was that they could not find the DNS server. I called my ISP (Charter), and they reset everything. The end result is that if I use my old router (Linksys) everything…
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