Red Hat Enterprise Linux Troubleshooting Guide by Benjamin Cane

Author:Benjamin Cane [Cane, Benjamin]
Language: eng
Format: epub
Publisher: Packt Publishing
Published: 2015-10-18T22:00:00+00:00

It seems, in fact, that the same error is showing yet again; now to figure out why.

Troubleshooting from historic issues

The first instinct for a Data Collector would be to simply run through the same troubleshooting steps from Chapter 5, Network Troubleshooting. The Adaptor and Educated Gusser troubleshooters, however, knowing the issue a few days ago was due to a static route would simply log in to the database server first and check for the same static route.

Maybe someone simply re-added it by mistake, or the route was not fully removed from the system's configuration files:

[db]# ip route show default via 10.0.2.2 dev enp0s3 proto static metric 1024 10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 169.254.0.0/16 dev enp0s8 scope link metric 1003 192.168.33.0/24 dev enp0s8 proto kernel scope link src 192.168.33.12

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