Operating System

Red Hat Enterprise Linux Server release 7.0 (Maipo)

Description

The error:
httpd: apr_sockaddr_info_get() failed for rhel7
apears when starting apache webserver daemon httpd. It can be seen when executing httpd service status command:
# service httpd status
Redirecting to /bin/systemctl status  httpd.service
httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled)
   Active: active (running) since Thu 2014-09-04 17:28:52 WST; 1min 25s ago
 Main PID: 2303 (httpd)
   Status: "Total requests: 0; Current requests/sec: 0; Current traffic:   0 B/sec"
   CGroup: /system.slice/httpd.service
           ├─2303 /usr/sbin/httpd -DFOREGROUND
           ├─2304 /usr/sbin/httpd -DFOREGROUND
           ├─2305 /usr/sbin/httpd -DFOREGROUND
           ├─2306 /usr/sbin/httpd -DFOREGROUND
           ├─2307 /usr/sbin/httpd -DFOREGROUND
           └─2308 /usr/sbin/httpd -DFOREGROUND

Sep 04 17:28:32 rhel7 systemd[1]: Starting The Apache HTTP Server...
Sep 04 17:28:47 rhel7 httpd[2303]: AH00557: httpd: apr_sockaddr_info_get() failed for rhel7

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Solution:

In this case the rhel7 is the actual hostname for this system. To fix the above error message :
# echo 'ServerName 127.0.0.1' >> /etc/httpd/conf/httpd.conf
and restart your apache webserver daemon httpd to apply changes:
# service httpd restart
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