Mailinglists of the netfilter/iptables project

Please remember, netfilter/iptables is a volunteer-based community effort, available for free. Our mailinglists are a forum where fellow users can meet and share their experience.

If you are a corporate user (or vendor) interested in professional support, training or consulting related to netfilter/iptables software, please contact the coreteam.

This page is a list of our mailinglists. Please read carefully and choose the address whose description matches most closely what you want. By using the right contact address, you will minimize the burden on the project members, and thus minimize the potential delay until you will receive a reply to your inquiry.

Netfilter list rules

You are strongly advised to go through these set of rules before posting to any of the netfilter lists.

List Rules

Subject Line
Make sure that your post contains a valid subject line containing a gist of your post rather than things like 'Help!!!', 'HELP ME PLEEEEEASE', 'Urgent Request' or 'Proposal'.
Top-posts
Do not "top-post/full-quote" (reply to a message by adding text to the top of the message and quoting the full original message), as it loses the reader and the flow of the message and can annoy other readers.
Overquoting
If you are replying to another message, quote only the portions of that message that you are specifically responding to, and insert your comments after those quotes. Do not simply quote back the entire message! Trim off everything apart from the most relevant lines of the original message.

In general, your reply should contain at least as much text as the amount of text you are quoting, if not more. Never quote back dozens of lines of text and simply add a single line of text to the bottom - people will *hate* you for that!
HTML Messages
HTML is not email, and email doesn't contain HTML, so please turn HTML formatting OFF in your email client. We have filters in place that will reject your message if your posting contains HTML. Do not use italics, colors, bold, fonts, pictures, sounds, or other HTML elements. Please use only 7-bit characters when sending email to the lists, with proper quoted printable encoding.
Message recycling
Do not start a New message or thread by hitting "Reply" in your mail client and changing the subject. When you do this, you mess up other participant's ability to read mail in a threaded fashion. When you mean to post a new message, use New, and when you want to reply to an existing message, hit Reply.
Pseudo-legal disclaimers
Do not attach obnoxious pseudo-legal, nonsensical disclaimers to your messages. People on open source lists do not like to be threatened with these. If your company insists on attaching such disclaimers to messages going out to mailing lists (where, by definition, the sender has *NO* control over who gets to see the message), then either use a webmail system, or just don't post.
Off-topic
Stay on-topic for the list. This isn't a good place to discuss automobiles, politics, music, or anything that is not related to Netfilter. Sometimes topics will diverge from the general discussion, but please try to keep it relevant to the list topic. Do not ask usage questions in the devel list, or vice versa
Message time and date
Please make sure the date and time on your computer is always current. When your date is set to something such as the year 2006, messages posted by you will get sorted based on that date, which may put them outside of the related month or year they belong in.

The netfilter-announce mailinglist

This mailinglist is not really a means of contacting the netfilter/iptables project, but rather a way of the netfilter people contacting and informing their users about new releases, bugfixes, potential security issues.

We strongly advise all netfilter/iptables users to subscribe this list. It is very low volume, usually only one message every couple of months.

Subscribe/Unsubscribe to/from the netfilter announcement mailinglist

Browse the list archive

The netfilter user mailinglist

This mailinglist is recommended for netfilter/iptables users who have questions on the usage, setup or configuration of netfilter/iptables, or of course those who want to help other users by sharing their experience and knowledge.

When to contact the netfilter user mailinglist?

If you have questions about your firewall configuration
If you don't understand something in the documentation
If you need help debugging your firewall
General discussion about netfilter/iptables

Subscribe/Unsubscribe to/from the netfilter user mailinglist

Browse the historical list archive

Browse the current list archive

Send mail to the netfilter user mailinglist.

The netfilter developer mailinglist

This mailinglist is used for discussion among netfilter/iptables developers. All of the netfilter core team is present on this mailinglist, as well as lots of the netfilter contributors.

When to contact the netfilter developer mailinglist?

If you want to help netfilter/iptables development
If you have problems developing a new extension for netfilter/iptables
If you have written a new extension and want to contribute it
If you have questions/suggestions on netfilter/iptables development

Subscribe/Unsubscribe to/from the netfilter developer mailinglist.

Browse the historical list archive

Browse the current list archive

Send mail to the netfilter developer mailinglist.

The netfilter failover mailinglist

This mailinglist is now closed, please refer to netfilter users mailinglist or netfilter developers mailinglist depending on your question. For more information about the failover setup, please check the conntrack-tools.