[TriLUG] iptables/ipchains (WAS: Security woes)

Jeff Bollinger jeff01 at email.unc.edu
Wed Jan 16 11:52:47 EST 2002


On the same idea, anyone know of a good GUI interface to configure and
export and IPTables script?

Jeff

--                                                                                                                                  
Jeff Bollinger                                                                                                                      
University of North Carolina                                                                                                        
IT Security Analyst                                                                                                                 
105 Abernethy Hall                                                                                                                  
mailto: jeff_bollinger at unc.edu

On Wed, 16 Jan 2002, That One Guy wrote:

> The firewall that gets setup by default in RH is ipchains still, I believe.  
> The default config files are in /etc/sysconfig.  For ipchains it is 
> /etc/sysconfig/ipchains and for iptables it is /etc/sysconfig/iptables.  
> These files will not exist unless either you create them or have it done at 
> install time.
> 
> Generally, I don't edit these files.  I have a firewall ruleset (just a shell 
> script using iptables) somewhere else and edit that which is a little more 
> readable.  After editing the ruleset, I'll make that ruleset active by 
> running the script.  
> 
> Once you have the ruleset active and like you want it, you can run 
> "/etc/init.d/iptables save" OR "/etc/init.d/ipchains save" which will save 
> your current active ruleset to the proper file in /etc/sysconfig.
> 
> Hope this helps,
> TOG
> 
> On Wednesday 16 January 2002 10:50 am, Ben Pitzer wrote:
> > Roy,
> >
> > On most Red Hat 7.x installs, the iptables were set up at the outset if
> > you chose high security during the install process.  This means that you
> > can probably do anything you want going out, but coming back in,
> > fuggedaboutit.  Look into your iptables config (I don't remember where
> > it's stored on RH boxes, offhand.  Anybody?), and modify that.  You'll
> > probably want to add a line at the top of the list to open the
> > appropriate ports, and I'm sure someone here, myself included, could
> > help you with that if you need it.
> >
> > Of course, I may be saying that to you only to find out that not only
> > did you check on it already, you checked some of the iptables sources
> > into CVS.  Just the same, I hope this helps.
> >
> > Regards,
> > Ben Pitzer
> >
> > On Wed, 2002-01-16 at 08:50, Vestal, Roy L. wrote:
> > > RHL 7.2, 2.4.16 with Win4Lin support and ext3 patch.
> > >
> > > -----Original Message-----
> > > From: Ben Pitzer [mailto:uncleben at mindspring.com]
> > > Sent: Tuesday, January 15, 2002 10:09 PM
> > > To: trilug at trilug.org
> > > Subject: Re: [TriLUG] Security woes
> > >
> > >
> > > Roy,
> > >
> > > What distro/version are you running, and what kernel?
> > >
> > > On Tue, 2002-01-15 at 11:19, Vestal, Roy L. wrote:
> > > > I need to start being able to ssh telnet, ssh ftp, and vnc my box here
> > > > at work. However, when I try to telnet, ssh telnet, ftp, or ssh ftp, I
> > > > get "connection refused". I'm not sure where to start troubleshooting.
> > > >
> > > > Also, I can VNC out, but not in. I'm assuming it's related.  I do not
> > > > have
> > >
> > > a
> > >
> > > > firewall setup at this time.
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