• XG DNS Logging and offload to SIEM

    dm4884
    dm4884
    I've successfully configured our XG Firewalls to push logs to our SIEM solution which works well, though when trying to trace source of DNS requests I can't find anything logged either locally on the XG, or anything on the SIEM other than a UDP port 53…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • DNS Request Route AWS VPN

    Wimar Aswan
    Wimar Aswan
    I'm trying to setup DNS Request Route to a DNS server on AWS. Situation is similar to the below but I'm using Sophos Firewall instead of UTM. For SNAT on the Sophos Firewall, I can't seem to use a subnet so can't test the resolution that is mentioned…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • XG 85 and 105 not resolving specific hostname

    Sulpasso
    Sulpasso
    Greetings guys, Hope you all doing well, I'm running Sophos XG 85 and 105 at: XG105 (SFOS 17.5.17 MR-17-Build837) XG85 (SFOS 17.5.17 MR-17-Build837) I have multiple network environments where I use Sophos Firewalls XG 85 and 105. When I try…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • DNS in an emergency rule setup

    ll-ben
    ll-ben
    Good day everyone! I am currently implementing an emergency firewall ruleset, which looks like this: - Allow all communications towards sophos central (for Live Response etc. to work) - Allow all communications coming from the physical Management…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • DNS Rewrite for Firewall URL

    MakoRantz
    MakoRantz
    We have two VLANs which are isolated from the rest of our network. They use external DNS for lookups. When the user hits a content issue, they are redirected to the firewall captive portal. However, because they use the external DNS they are pointed to…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • XG DNS Configuration

    BillGreville
    BillGreville
    Hey Team, I have tried to work this out from the forums but I'm simply not getting it! The XG has multiple WAN interfaces: - Primary with STATIC network assignment - Failover 1 with DHCP network assignment - Failover 2 with PPPOE credentials Network…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • DNS Request route (Bind on Interface or Subnet Listener]

    Valvaris Sigma
    Valvaris Sigma
    Hello Sophos-Community, this would be great to have on the DNS Controlling side of things. The feature in question is DNS Request Route! My Scenario would be multiple DNS Servers Public or Local with some subnets not having to hit the DNS Request…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • Sophos Firewall local DNS

    asima mazar
    asima mazar
    I'm trying to get away from setting IP reservations and static DNS entries as it's just a waste of time. I want to just use internal hostnames for a variety of automation stuff. I've set a .local domain for all of my DHCP scopes (three) so I should…
    • over 1 year ago
    • Sophos Firewall
    • Discussions
  • VLAN/DMZ interface IP as DNS Server

    DCALS
    DCALS
    Hi, I've set up a new VLAN (20) bound to the LAN hardware (Port1.20) with IP 192.168.20.1, and assigned it to the DMZ zone. If I run the policy checker using Firewall,SSL/TLS and web method, with the following parameters, it fails URL: dns://192.168…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Adding FQDN host object causes restart of DNS and failure in name resolution.

    Rieski
    Rieski
    Every time FQDN hosts object is being added to firewall it causes dnscache to restart. During restart name resolution using firewall fails. New FQDN host object being added to firewall, notice how PID changes for dnscache process. Instead of reloading…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DNS service in "SOPHOSXG"

    jerzon quispe
    jerzon quispe
    Dear one query, I do not have an internal DNS server to resolve my zimbra internally, I have searched for a DNS service in sophos, I have added the FQDN and internal IP but it does not resolve, does anyone know how said DNS service is applied?
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DNS Sink Holing to identify infected hosts

    Datapac
    Datapac
    Are there any plans for Sophos XG to implement DNS sinkholing where malicious DNS requests are resolved to a "Black Holed" IP address and once a host tries to communicate with this IP address, we can identify the infected host. This would save a hugh…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DNS Host Entry doesn't work for some VLANs

    Pete B1
    Pete B1
    I recently updated to SFOS 19.0.1 MR-1-Build365. Since the update my DNS host entries aren't working on all VLANs except the VLAN the firewall is connected to. They were previously working in 18.5 and I haven't made any configuration changes. I have…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Split DNS via internal AD DNS over SSLVPN does not work with Connect based clients

    RCA_Sophos
    RCA_Sophos
    Hi all, we have the following setup: - XGS 126, configured for SSLVPN - The global SSLVPN settings contain the IPs for both internal AD DNS servers and the AD FQDN (i.e. contoso.local) - The internal DNS is configured for Split-DNS to resolve external…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Subdomain to port

    Tony B
    Tony B
    Hi, Please forgive this question. I am a complete novice so not sure even if this is possible. My situation: I have one server with a static IP On this server I have various web applications that are being served on different ports. Ie: Service 1…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • How to find DNS querys from LAN zone to WAN Zone

    Juan Michel
    Juan Michel
    Hello, I need to see the DNS queries generated from my LAN zone to the WAN zone of the XG Firewall. Through the DHCP of the firewall I am assigning the same Firewall as the DNS server. But I cannot identify or find anything in the logs or reports that…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Have I setup DNS correctly on my XGS136?

    Sean Rome
    Sean Rome
    Greetings everyone! I'm going to replace my UTM tonight with my new XGS136. Our domain controller will be primary DNS, and the XGS will be secondary. On the domain controller I set the forwarder to be the firewall. These are my settings. Have I set…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • XG Firewall blocking Domain Controller DNS Lookup

    Marco_Rolo
    Marco_Rolo
    Hello All, I'm switching over to an XG firewall, and I can't get my Domain Controllers' DNS to resolve their forwarders. I can see the packets being allowed out and seem to have upstream bandwidth, but in Live Connections under DNS the downstream…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DNS across VLANs

    Robin Rieger
    Robin Rieger
    Hey, So I have this DHCP VLANS all like this and DNS like this From any computer in VLAN 100 I can ping another computer in VLAN100 like this ping cws-yellow-room But, if I try to ping a server (by name and not…
    • Answered
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Sophos XG as DNS server (for local entries) and forwarder (for public entries)

    Shadow82
    Shadow82
    Hi! Recently I implemented my Sophos XG as local DNS server, but it does not resolve public DNS names. My setup is that I have some router working as DHCP server. Sophos is "work in progress", with WAN interface on the same subnet as router. It also…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • TCP Latency and DNS retry issues

    UJay
    UJay
    Hi In my network environment, i am noticing a lot of TCP Latency and DNS retry issues. Currently i am using Unifi Switches and Unifi APs as network devices and they channel the traffic to the XG-115. I have reached out to Unifi support team to see…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • DNS Resolution slow using Connect 2.0 and IPSec VPN connection

    AllanD
    AllanD
    We have a ongoing issue with Sophos Connect 2.0 and IPSec VPN connections where DNS resolution is extremely slow at first and sometimes never resolves itself. For example a user connects to the VPN and then tries to open a network drive then gets a error…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Disable DNS services

    XSupport
    XSupport
    Hi, We have the Sophos XG and XGS UTMs behind an other firewall (not controlled by us). However the admin of that other firewall complains about a lot of DNS traffic coming from our Sophos. we tried dropping any DNS traffic from within the Sophos and…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • Sophos XG NAT for essential services.

    Alpha Beta
    Alpha Beta
    Hello all I want to create NAT + Access rules for DNS and NTP so any UDP 53 and UDP 123 traffic targetted for WAN gets redirected to internal servers. Can anyone suggest how that can be achieved? Thanks A
    • over 2 years ago
    • Sophos Firewall
    • Discussions
  • V19 DNS Curiosity

    Brian1941
    Brian1941
    I have my XG106 with v19 GA behind my XG125 with v18.5.2 MR2 for home testing. The only thing connected to the XG106 is the WAN link which feeds into a port on the XG125. The strange thing is I see in the XG125 logs is that the XG106 is making multiple…
    • over 2 years ago
    • Sophos Firewall
    • Discussions
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