Question about Linux Firewall

This is a discussion on Question about Linux Firewall within the Linux Programming forums, part of the Platform Specific Boards category; In windows, a typical firewall program may contain a driver to deal with the datagram processing. What about in Linux? ...

  1. #1
    Registered User
    Join Date
    Jun 2004
    Posts
    42

    Question about Linux Firewall

    In windows, a typical firewall program may contain a driver to deal with the datagram processing. What about in Linux? Does it also need to write a Linux driver?

  2. #2
    Obsessed with C chrismiceli's Avatar
    Join Date
    Jan 2003
    Posts
    501
    The linux firewall can only be installed via a kernel module or as part of the kernel itself. Look here for info on it, it is called ipchains: http://www.tldp.org/HOWTO/IPCHAINS-HOWTO.html
    Help populate a c/c++ help irc channel
    server: irc://irc.efnet.net
    channel: #c

  3. #3
    Registered User
    Join Date
    Jun 2004
    Posts
    42
    Where can get some free implementation information about VPN?

  4. #4
    Comment your source code! Lynux-Penguin's Avatar
    Join Date
    Apr 2002
    Posts
    533
    Perhapse GOOGLE might help
    search for "Linux VPN" or something

    日本語が出来れば、Googleで日本語のドクスもあるよ
    Asking the right question is sometimes more important than knowing the answer.
    Please read the FAQ
    C Reference Card (A MUST!)
    Pointers and Memory
    The Essentials
    CString lib

  5. #5
    Cat without Hat CornedBee's Avatar
    Join Date
    Apr 2003
    Posts
    8,893
    ipchains has been superseded by iptables as of the 2.4 kernel.
    All the buzzt!
    CornedBee

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
    - Flon's Law

  6. #6
    Obsessed with C chrismiceli's Avatar
    Join Date
    Jan 2003
    Posts
    501
    Quote Originally Posted by CornedBee
    ipchains has been superseded by iptables as of the 2.4 kernel.
    I KNEW THAT, I am going to slap myself, I looked up the link to the wrong one! Thanks for pointing it out.
    The right link:
    http://www.netfilter.org/
    Thanks CornedBee.
    Help populate a c/c++ help irc channel
    server: irc://irc.efnet.net
    channel: #c

  7. #7
    Registered User
    Join Date
    Jul 2004
    Posts
    9
    you can also program your own firewall application using netfilter hooks. it comes in handy if you want to implement an own analyzing/detection system. i think there was some phrack issue with an article about that. if not, use google.

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. I have a question about hard drives in Linux
    By Overworked_PhD in forum Tech Board
    Replies: 2
    Last Post: 12-29-2007, 10:29 AM
  2. Linux question.
    By TylerMoyer in forum Linux Programming
    Replies: 2
    Last Post: 11-08-2007, 01:47 AM
  3. Linux header question
    By invisibleghost in forum Linux Programming
    Replies: 5
    Last Post: 02-17-2005, 10:03 AM
  4. question from linux board ( not os dependant )
    By crypto in forum C Programming
    Replies: 4
    Last Post: 11-15-2002, 02:09 AM
  5. Question about LINUX
    By River21 in forum A Brief History of Cprogramming.com
    Replies: 0
    Last Post: 09-17-2001, 07:39 PM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21