Name resolution of cache_peer fails in Squid when the hostname is upper case
Issue
-
The
squid
proxy does not connect to other proxies in the hierarchy. -
A message similar to the following may appear in
/var/log/squid/cache.log
:2018/10/04 08:10:52 kid1| Configuring Parent PROXY-HOSTNAME/3128/3130 2018/10/04 08:10:52 kid1| WARNING: DNS lookup for 'PROXY-HOSTNAME' failed!
Environment
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Squid
proxy
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