I am trying to prevent a webserver to do IPv6 lookups (AAAA) to the DNS-server. The webserver has no IPv6 addresses set-up on the interfaces. Disabling IPv6 in sysctl.conf had no impact either, the ...
I have a server running Red Hat 6.3 Enterprise inside a VMWare virtual machine. There's a Juniper SSG 5 firewall sitting between the server and the Internet. I'm trying to diagnose what it looks like ...
Captured on the nameserver: 21:54:35.391126 IP resolver.7538 > server.domain: 57385% [1au] A? www.domain.de. (42) What das the percent sign in 57385% mean? As far as I can see 57385 is the ...
Relevant output: /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 ...
Following on from this question, how can I tell tcpdump to use a specific protocol analyzer for a particular port? I'm doing some DNS development using a test server running on port 5053, but I can't ...