From: Andrew Schulman <andrex@alumni.utexas.net>
To: netfilter@lists.netfilter.org
Subject: Re: Are established connections interrupted when iptables is restarted?
Date: Wed, 22 Dec 2004 12:48:11 -0500 [thread overview]
Message-ID: <MPG.1c337d639722a0f598969e@localhost> (raw)
In-Reply-To: 200412221511.43567.gdh@acentral.co.uk
> > I make changes in the /etc/sysconfig/iptables file and then do a "service
> > iptables restart". Would this interrupt the established connections through
> > the firewall?
>
> Provided that 'service iptables restart' does not unload the conntrack module,
> then the established-connections table will not be reloaded - you will likely
> have a second or two of no connectivity while the ruleset is reloaded,
> though.
Right. I've done this many times, and never seen any dropped
connections. I've even restarted the firewall from a remote ssh
session, and never had any trouble-- just a short pause in the console
output. Of course, that's terrible practice-- if your firewall script
doesn't finish executing, for whatever reason, then you're hosed until
you can get back to the console.
--
To reply by email, replace "deadspam.com" by "alumni.utexas.net"
next prev parent reply other threads:[~2004-12-22 17:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-22 15:06 Are established connections interrupted when iptables is restarted? Deepak Seshadri
2004-12-22 15:11 ` Gavin Hamill
2004-12-22 15:17 ` Gavin Hamill
2004-12-22 17:48 ` Andrew Schulman [this message]
2004-12-23 2:13 ` R. DuFresne
2004-12-23 4:37 ` Jason Opperisano
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=MPG.1c337d639722a0f598969e@localhost \
--to=andrex@alumni.utexas.net \
--cc=netfilter@lists.netfilter.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.