Httpd – Cannot get HTTPD 2.4 to start when using the Require IP command for access control

apache-2.4cidrhttpd

This was intended to be a comment on a similar question but since Stack is so restrictive about comments I'm reposting it as they want it:

: Here's the documentation: http://httpd.apache.org/docs/2.4/en/mod/mod_authz_core.html#require)

Here's the config file:
Options Indexes FollowSymLinks AllowOverride None Require ip $CIDR ~

The error still is: May 24 20:54:54 ip-172-16-5-34.us-west-1.compute.internal httpd[23044]: AH00526: Syntax error on line 3 of /etc/httpd/conf.d/httpd.conf: May 24 20:54:54 ip-172-16-5-34.us-west-1.compute.internal httpd[23044]: Invalid command 'Require', perhaps misspelled or defined by a module not included in the server configuration

What am I missing?

It looks like the RequireAny or RequireAll commands may help but they don't.

For your reference the information provided here did not suffice:
How do I require an IP range instead of 1 IP?

Best Answer

Require ip $CIDR ~ is not proper in the Options directive. The documentation is very clear about what may be in an Options directive.

Require is its own directive, which can be in a Container, but certainly not within an Options directive.

When you get past that, your next problem will probably be the Require ip $CIDR ~. Where are you getting this $CIDR ~ bit? You need to follow proper specification for access control by host and specification of Require ip directives.

If in fact, you actually have Require ip $CIDR ~ on its own config line, as opposed to what you put in the question, then refer to the last part of this answer now (i.e. use proper host/ip specification with the Require ip) and also see the following notes.

NOTE: You must have mod_authz_core loaded to use the Require (and related) directives.

NOTE ALSO: You should be running apachectl -t to check config changes BEFORE trying to restart Apache, rather than finding these problems by crashing Apache.

Related Solutions

Allow multiple IPs with the Require directive in Apache 2.4

The upgrading documentation has clear information on how to do this. It is also something that should be read in case any other configuration changes are required: https://httpd.apache.org/docs/2.4/upgrading.html

Also you do not need to put different IP addresses or networks on separate lines. It is perfectly acceptable to do the following:

# Apache v2.2
Allow from 1.2.3.4 1.2.3.10
# Apache v2.4
Require ip 1.2.3.4 1.2.3.10

Finally, the default is for multiple require directives to be treated as if they are in a <RequireAny> block, so unless you are forming a more complex nested grouping you do not need to add it. Though you may wish to for clarify of course. Reference: https://httpd.apache.org/docs/2.4/howto/auth.html#beyond

Additional Information: One other thought is that when upgrading you should definitely go through all your configuration (including any htaccess files you might have) and convert the older Apache v2.2 directives to the Apache v2.4 ones, and then comment out the loading of the mod_access_compat module. Mixing v2.2 and v.24 directives can cause some very unusual problems that are hard to troubleshoot.

Apache HTTPD Whitelist Access Control via X-Forwarded-For Header

I think you need the satisfy any bit to be changed to satisfy all. That refers to allowing a user if they meet the authentication OR access requirements. Since I don't see an authtype set, it's defaulted to AuthType none which I think allows them to pass in. satisfy all means Authentication AND Access are required to be met.

Best Answer

Related Solutions

Allow multiple IPs with the Require directive in Apache 2.4

Apache HTTPD Whitelist Access Control via X-Forwarded-For Header

Related Topic