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- About IsaacCasal
01-25-2023
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Jan 25, 2023Last Visited
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Latest posts by IsaacCasal
| Subject | Views | Posted |
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| 1279 | 05-04-2022 06:52 AM | |
| 1347 | 05-04-2022 04:44 AM |
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| Member Since | 05-15-2020 01:23 AM |
| Date Last Visited | 01-25-2023 10:24 AM |
| Posts | 2 |
05-04-2022
06:52 AM
Hi! Thanks for the reply. The DNS traffic has a custom configuration in service routing, for a specific interface, not the default (management). But if I am not wrong, this is referred to a specific port, in this case service: "dns", so it has to be not only for layer 3 routing, but also port 53 traffic. So it will not affect the ping or ssh, and so on. Am I wrong? Thanks!
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05-04-2022
04:44 AM
Hello, I don't know if this is a normal behavior or not. We have 3 DNS servers. DNS_A DNS_B DNS_C We are not able to ping or ssh/http to the management interface from the DNS server, if this DNS server is configured as DNS server in the firewall. When we configure DNS_A and DNS_B as a primary and secondary DNS servers in the firewall, we are not able to ping or access from those DNS servers to the mgmt interface. But DNS_C is able to ping with no problems. When we configure DNS_A and DNS_C, they are not able to ping, but DNS_B can do it. Why is it? I did a tcpdump and see that all pings arrived to the firewall but there are only replies from fw to the server that is not configured as DNS. Thanks!
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