When configuring a client to use a DNS name instead of an IP address, you may receive "Failed to Connect to Client After 5 Attempts" when backups run.
When configuring a protected client by DNS name instead of IP address, you need to ensure that Reverse Lookup Zones have been configured in your environment.
**WARNING: For advanced users only***
If your environment does not support Reverse Lookup Zones, you may use the following advanced procedure as a work-around. Warning: Do not execute this procedure when backups are running.
- Ensure your DNS servers are configured in Settings > Clients, Networks, and Notifications > Networks > DNS
- If the DNS server does not have reverse lookup configured, using an SSH client such as PuTTY, log in to the Unitrends system and run the command vi /usr/bp/bpinit/master.ini. Add this name/value pair to The [Configuration Options] section: ‘DoReverseNameLookup=False’. Write and Quit the file.
- Next, run the command vi /etc/httpd/conf/httpd.conf. Change HostnameLookups from Off to On. Write and Quit the file.
- Restart networking by running the command service httpd restart.
- The Unitrends system should now be able to resolve hostnames to IP addresses.