iptables slows down access to httpd server

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This, strictly speaking, isn't a Fedora problem, but I'm hoping someone out there can help.

system config:
dell poweredge 2950
kernel: 2.6.22.9-61.fc6
apache: 2.2.6

problem summary: when iptables is turned on, web pages (graphics in particular) served up from the box are *extremely* slow to load, sometimes timing out. when iptables is turned off, web pages served up from the box load normally. I've compared my /etc/sysconfig/iptables file to another (fc6) server and they are effectively the same, *but* I've never had a problem with page loads from the other box.

I'm assuming (yes, I know 8^) that the problem lies with iptables, but I'm running out of places to look for answers. Should I be looking somewhere other than the firewall? Has anyone else seen this? I'd really appreciate any help anyone out there could give.

((beware of line wrapping))
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
COMMIT

...ok I did manually edit the file to add the http rule, but up until now I've not had any problems doing that sort of thing. Iptables does drive me just a bit crazy, but I do know enough to to that successfully (up until now that is). Help! ...and thanks!
--
Steve Lindemann                         __
Network Administrator                  //\\  ASCII Ribbon Campaign
Marmot Library Network, Inc.           \\//  against HTML/RTF email,
  url: http://www.marmot.org           //\\  vCards & M$ attachments
email: mailto:steve@xxxxxxxxxx
voice: +1.970.242.3331 ext 16
  fax: +1.970.245.7854


[Index of Archives]     [Current Fedora Users]     [Fedora Desktop]     [Fedora SELinux]     [Yosemite News]     [Yosemite Photos]     [KDE Users]     [Fedora Tools]     [Fedora Docs]

  Powered by Linux