Re: Firewall-troubleshooting

2005-07-03 Thread Daniel Pittman
On 4 Jul 2005, KC wrote: [...] > *nat > :PREROUTING DROP [0:0] > :POSTROUTING DROP [0:0] > :OUTPUT DROP [0:0] > COMMIT I thought that using a policy of DROP in the nat tables would result in anything that wasn't NAT-ed being prevented from passing through by iptables. I can't find any documenta

Re: Firewall-troubleshooting

2005-07-03 Thread KC
Hi, My firewall script doesn't have a problem with it's rules it is just missing something important because when firehol tries it it doesn't give any significant errors. When I turn on my previous firewall it works fine. The place I am working in is a remote place where I am just setting up a ne

Re: Firewall-troubleshooting

2005-07-03 Thread Daniel Pittman
On 4 Jul 2005, Paul Gear wrote: > Daniel Pittman wrote: >> ... >> Shorewall, like many firewall packages, gives you[1] a whole bunch of >> configuration options, which turn on or off features in the pre-packaged >> firewall you have. >> >> This tends to make it hard to do strange things like playin

Re: Firewall-troubleshooting

2005-07-03 Thread Paul Gear
Daniel Pittman wrote: > ... > Shorewall, like many firewall packages, gives you[1] a whole bunch of > configuration options, which turn on or off features in the pre-packaged > firewall you have. > > This tends to make it hard to do strange things like playing with DSCP > tagging of packets, or de

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Re: Firewall-troubleshooting

2005-07-03 Thread Jakub Sporek
On Sun, 03 Jul 2005 12:23:13 +0200, Daniel Pittman <[EMAIL PROTECTED]> wrote: Thanks a lot! It was really comprehensive! And according to what you wrote - I'll stick with shorewall since it does everything I need and it's easy to manage. On the other hand - I'll start to learn iptables beca

Re: Firewall-troubleshooting

2005-07-03 Thread Daniel Pittman
On 3 Jul 2005, Jakub Sporek wrote: > On Sun, 03 Jul 2005 05:07:02 +0200, Daniel Pittman <[EMAIL PROTECTED]> > wrote: > >> I found that 'firehol' was quite a surprise to me -- not only didn't it >> suck, it actually improved my hand-written firewall somewhat. > >> Unlike everything else, it doesn't

Re: Firewall-troubleshooting

2005-07-03 Thread Paul Gear
Daniel Pittman wrote: > ... >>>Finally, that is a pretty complex firewall script, and obviously >>>somewhat hard to maintain. Maybe you would get better value for your >>>time by using an existing firewall helper like 'firehol', or something, >>>than re-doing the work that went into the existing t

Re: Firewall-troubleshooting

2005-07-03 Thread Jakub Sporek
On Sun, 03 Jul 2005 05:07:02 +0200, Daniel Pittman <[EMAIL PROTECTED]> wrote: I found that 'firehol' was quite a surprise to me -- not only didn't it suck, it actually improved my hand-written firewall somewhat. Unlike everything else, it doesn't tell you to fill in three values in a config

Re: Firewall-troubleshooting

2005-07-03 Thread Sam Couter
Daniel Pittman <[EMAIL PROTECTED]> wrote: > Sure, a lot of them suck. In fact, most of them *really* suck, in my > opinion. > > I found that 'firehol' was quite a surprise to me -- not only didn't it > suck, it actually improved my hand-written firewall somewhat. Firehol still sucks: It's ba