add hint about SELinux to security.txt

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@11054 7612ce4b-ef26-0410-bec9-ea0150e637f0

diff --git a/doc/security.txt b/doc/security.txt
index 3711dcfbff4b289c94a29d8b9236b7245e96b1d2..fe20e6afd05ef8f6ce3e955bf395e959445984be 100644 (file)
--- a/doc/security.txt
+++ b/doc/security.txt
@@ -27,6 +27,9 @@ further improve the security of your webmail system.
   releases which may fix security bugs. If you run SquirrelMail packaged by
   your distribution, make sure to apply their security upgrades.
 
+- If you use SELinux, SquirrelMail will not work unless you create a policy
+  for it. In the SELinux Policy Editor, under HTTPD Service, enable
+  "allow HTTPD scripts and modules to connect to the network".
 
 These are only some tips to get you started. A truly secure system needs
 careful tweaking of all components, including PHP, Apache, mailserver,