Verify DNS and DHCP operation

Before continuing with the installation process, it is important that DNS and DHCP are both operating properly. sipXecs relies heavily on DNS, especially for HA installation, to function properly.

Single PBX testing

Log in to the PBX as the 'root' user. Verify that all of the following commands return the expected results:

ping sipx
ping sipx.your.domain
dig -t A sipx.your.domain
dig -t SRV _sip._tcp.your.domain
dig -t SRV _sip._udp.your.domain

The following are the expected results for each of the above PING tests (expect different IP addresses and domain names; press Ctrl+C to break continuous PING):

[root@sipx ~]# ping sipx
PING sipx.xyzcompany.com (172.16.1.2) 56(84) bytes of data.
64 bytes from sipx.xyzcompany.com (172.16.1.2): icmp_seq=1 ttl=64 time=0.043 ms
64 bytes from sipx.xyzcompany.com (172.16.1.2): icmp_seq=2 ttl=64 time=0.031 ms
64 bytes from sipx.xyzcompany.com (172.16.1.2): icmp_seq=3 ttl=64 time=0.029 ms
64 bytes from sipx.xyzcompany.com ...