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iptables firewall optimization
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IT & Programming > Networking & Security

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Jan 23, 2013
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  • Posted: Sun, Jan 20, 2013
  • Time Left: Closed
  • Location: Anywhere
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  • Start: Immediately
  • Budget: Less than $500
  • Fixed Price Job
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  • U.S. freelancers must have W9
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I'm dealing with U-verse with multiple static IP addresses.

I have a CentOS 6.3 iptables dedicated system that should allow reasonable firewalling to some web server on an internal network. For some reason it works, but is iinnccrreeddiibbllyy slow. See attachment.
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Added 21 JAN 2013, 5:53 AM EST
See attachment 2, its another variant for iptables that also works, but packets are vveerryy ssllooww. Please understand, I have an iptables config that works. I need assistance understanding/fixing why it is so slow.

When I hack using ssh port forwarding of port 80 using -G to internal 10.10.10.89 speed is fine. So it seems something about iptables is very slow, or the config needs to optimized more? I'd rather not fall back to a hardware firewall for reasonable speed. Note, some of the machines on the network are ESX vm's.

If you can email me a iptables config you think will work with BETTER packet speed than the configs I've shared, I'l...

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