How to restrict system administrator login to specific IP Addresses

Issue

Generally authoring instance is usually located behind a company's firewall that provides full protection. For external access OR to improve the authoring performance the instance may be exposed through webserver using dispatcher module [0] to external world.  How to restrict system-level access to a single IP or a range of IP addresses for increased security?

Solution

Using a ModSecurity [1] rule is one of the option to limit the use of the "admin" login via certain IPs. The steps are

  1. Install the plugin mod_security
  2. Load/Enable the mod_security & unique_id_module in httpd.conf
  3. Configure a security rules  & for more details refer[2]. 

An sample httpd.conf for apache (Steps 2 & 3 above) to allow system admin login only from ip 172.16.208.11 is shown below

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LoadModule unique_id_module modules/mod_unique_id.so
LoadModule security2_module modules/mod_security2.so

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<IfModule mod_security2.c>
 SecRuleEngine On
 SecRequestBodyAccess On
 SecResponseBodyAccess Off
</IfModule>

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<LocationMatch /libs/cq/core/content/login.html/j_security_check>
 SecRule REMOTE_ADDR "!@ipMatch 172.16.208.11" "id:'23000',chain,deny,log"
 SecRule ARGS:j_username "admin" "t:lowercase"
</LocationMatch>
Huomautus:

Same can be applied to webserver configured for publish instance.

Reference

 Adobe

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