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ah00557 httpd apr_sockaddr_info_get() failed – Quick Solution

Oops!! Frustrated with ‘ah00557 httpd apr_sockaddr_info_get() failed’ warning? We can help you fix it.

This error can be fixed by adding the IP address and hostname in /etc/hosts file.

At Bobcares, we often get requests regarding Apache errors, as a part of our Server Management Services.

Today, let’s see how our Support Engineers fix this Apache error for our customers.

Why this error ah00557 appear?

This error appears mainly when Apache is newly installed and no setup has been done. The apache configuration file will be blank by default.

And when we start or stop an Apache service we will get a warning message ‘ah00557 httpd apr_sockaddr_info_get() failed’

So, for fixing that we add the following line in /etc/apache2/httpd.conf.

ServerName localhost

Sometimes, this doesn’t fix the problem. In such cases, our Engineers will do a deep dig on the problem until they find a solution.

Today, let’s see different scenarios in which this warning appears and how our Engineers fix it for our customers.

 

How we fix ah00557 httpd apr_sockaddr_info_get() failed ?

Recently, one of our customers approached us saying that he is getting an error like the one shown below when he was trying to restart the apache service.

ah00557 httpd apr_sockaddr_info_get() failed

We checked in detail and added the IP address and hostname in /etc/hosts file.

And then restarted Apache.

This fixed the problem and the apache restarted without any error message.

 

Also, we handled a situation where the customer approached us with the same warning. He mentioned that he is getting this error while installing Nagios.

When we checked in detail we found that the port was not open.

So we added the following in /etc/sysconfig/iptables

-A INPUT -p tcp -M state –state NEW -m tcp –dport 80 -j ACCEPT

Finally, this fixed the problem.

 

[Need any assistance with Apache errors? – We’ll help you fix it]

 

Conclusion

In short, we discussed in detail on ‘ah00557 httpd apr_sockaddr_info_get() failed‘ and saw how our Support Engineers find a fix for this error in different scenarios.


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