Basic troubleshooting
The first test we should perform is a simple ping from the blog server to the database server. This will quickly answer whether the two servers are able to communicate at all:
[blog]$ ping db.example.com PING db.example.com (192.168.33.12) 56(84) bytes of data. 64 bytes from db.example.com (192.168.33.12): icmp_seq=1 ttl=64 time=0.420 ms 64 bytes from db.example.com (192.168.33.12): icmp_seq=2 ttl=64 time=0.564 ms 64 bytes from db.example.com (192.168.33.12): icmp_seq=3 ttl=64 time=0.562 ms 64 bytes from db.example.com (192.168.33.12): icmp_seq=4 ttl=64 time=0.479 ms ^C --- db.example.com ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3006ms rtt min/avg/max/mdev = 0.420/0.506/0.564/0.062 ms
Get Red Hat Enterprise Linux Troubleshooting Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
