Issue All websites point to default page

[flash5k]

I have looked at #118348. This was caused by fail2ban updating using the epel repo instead of the plesk repo. Problems don't start right away. They begin with excessive memory usage with Dr Web, fail2ban zombies, and watchdog cycles these services. Plesk is unable to update records without timing out. Then all the websites over multiple IPs start pointing to the default page.

I have uninstalled the epel repo fail2ban and replaced it with the plesk version. I have re-started the drwebd and watchdog services. I have disabled the epel repo and uninstalled all packages that use it. I have rebooted the server.

Still no success. Any ideas?

 

[IgorG]

Any results after

# plesk repair web

?

 

[flash5k]

It seemed like the networking was set up correctly. I have set up a VPS container once but never figured out how to get the networking part right. Since this is within a VPS container, I'm in pretty dark waters here. I used IPTRAF to look at the packets and the pattern does not match what is shown in the example. What I get is:

d05806e6.example.com:60815 -> d05806e6.example.com:7081 iface lo
d05806e6.example.com:7081 -> d05806e6.example.com:60815 iface lo
example.com:7080 -> example.com:48807 iface lo
example.com:7080 -> example.com:48807 iface lo

As I copy this, the d05806e6.example.com is new to me. I have only seen example.comort. I recognize ports 7080-708x as my websites port numbers. I just checked the websites and the issue seems to be fixed. My provider responds with

The issue was due to the corrupted plesk-core package which is now fixed by installing the required packages.

By disabling the epel repo, I think I have made the permanent change needed to avoid this problem in the future. How does one test for corrupted packages or is that found by experience (and actually knowing how everything works)?