Help Secure Your Server: Apache

Enable and Configure mod_security: a Web Application Firewall (WAF)

Enable and Configure mod_evasive: Denial of Service prevention (works w/local firewalls)

    DOSHashTableSize    3097
    DOSPageCount        20
    DOSSiteCount        100
    DOSPageInterval     1
    DOSSiteInterval     1
    DOSBlockingPeriod   10

Apply "SymLinksIfOwnerMatch" option to virtual hosts' document root*
```
    Options FollowSymLinks SymLinksIfOwnerMatch
```
* - Apache symlinks restrictions are not true security, but it doesn't hurt to enable them