Networking tab of a certain VPS is not available in SolusVM 2: Something went wrong

Symptoms 

Networking tab of a certain VPS is not available in SolusVM 2. The following error is displayed in SolusVM 2 panel:

CONFIG_TEXT: Something went wrong...
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Cause

Missing entry in reverse_dns database table for the VPS IP address.

Resolution

1. Access Management Node via SSH
2. Backup Management Node:

   # /usr/local/solus/bin/installer -backup

3. Access database:

   # docker exec -it $(docker ps -q -f name=solus_postgres | head -n1) psql -U$(docker exec $(docker ps -q -f name=solus_postgres | head -n1) env | grep POSTGRES_USER | awk -F "=" {'print $2'}) $(docker exec $(docker ps -q -f name=solus_postgres | head -n1) env | grep POSTGRES_DB | awk -F "=" {'print $2'})

4. Find the corresponding IP address ID:

   MYSQL_LIN: select id from ips where ip='IPADDR';

   Replace IPADDR with the corresponding IP address.

5. Add the entry in reverse_dns table:

   MYSQL_LIN: insert into reverse_dns (ip_id,ip,domain) values (IPADDR_ID, 'IPADDR', '');

   Replace IPADDR_ID and IPADDR correspondingly.