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[LDM #IXG-702275]: LDM setup up problem questions

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  • Subject: [LDM #IXG-702275]: LDM setup up problem questions
  • Date: Fri, 29 Dec 2006 08:50:22 -0700
Hi Yoori,

re:
> Please see the attached to find out the modified /etc/sysconfig/iptables.
> After take a look, please confirm me then I will restart the firewall. Thank
> you.

Seeing your iptables setup has made me alter my recommendations.

First, if you did have not already done so, save a copy of an unmodified
iptables as iptables.bak:

<as 'root'>
cd /etc/sysconfig
cp iptables iptables.bak

Since you already modified iptables, you should edit iptables.bak and
make it look like:

# Firewall configuration written by lokkit
# Manual customization of this file is not recommended.
# Note: ifup-post will punch the current nameservers through the
#       firewall; such entries will *not* be listed here.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Lokkit-0-50-INPUT - [0:0]
-A INPUT -j RH-Lokkit-0-50-INPUT
-A FORWARD -j RH-Lokkit-0-50-INPUT
-A RH-Lokkit-0-50-INPUT -i lo -j ACCEPT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 0:1023 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 2049 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 0:1023 -j REJECT
-A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 2049 -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 6000:6009 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 7100 --syn -j REJECT
COMMIT

Next, modify /etc/sysconfig/iptables file to look like:

# Firewall configuration written by lokkit
# Manual customization of this file is not recommended.
# Note: ifup-post will punch the current nameservers through the
#       firewall; such entries will *not* be listed here.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:EXTERNAL - [0:0]
:RH-Lokkit-0-50-INPUT - [0:0]
-A INPUT -j RH-Lokkit-0-50-INPUT
-A FORWARD -j RH-Lokkit-0-50-INPUT
-A RH-Lokkit-0-50-INPUT -i lo -j ACCEPT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 0:1023 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 2049 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 0:1023 -j REJECT
-A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 2049 -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 6000:6009 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 7100 --syn -j REJECT
#
# Handle external connections
#
-A EXTERNAL -m state --state NEW -p tcp -s 128.117.140.0/24 --dport 22 -j ACCEPT
COMMIT

After making the change, restart your firewall:

/etc/init.d/iptables restart

I will then try to SSH as 'ldm' to your machine and let you know the
result.

Cheers,

Tom
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Ticket Details
===================
Ticket ID: IXG-702275
Department: Support LDM
Priority: Normal
Status: Closed