LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software
User Name
Password
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.

Notices


Reply
  Search this Thread
Old 03-25-2005, 05:09 PM   #1
noteventime
Member
 
Registered: Mar 2005
Location: a small planet in the vicinity of Betelgeuse
Distribution: ArchLinux
Posts: 53

Rep: Reputation: 15
Question Firewalls


Hello,
Is there any firewall for stopping outgoing connections like zonealarm does, for linux that is. And second would it be possible to "emulate" zonealarm in wine to stop outgoing connections. I want it to ask whenever a program tries to connect to the internet.
 
Old 03-25-2005, 05:50 PM   #2
WRSpithead
Member
 
Registered: Mar 2005
Posts: 60

Rep: Reputation: 15
Quote:
Is there any firewall for stopping outgoing connections like zonealarm does, for linux that is.
Look for it. Google for "[distro] firewall" where [distro] is your distrobution (e.g. red hat)

Quote:
would it be possible to "emulate" zonealarm in wine to stop outgoing connections.
Try it out.
 
Old 03-25-2005, 10:04 PM   #3
benjithegreat98
Senior Member
 
Registered: Dec 2003
Location: Shelbyville, TN, USA
Distribution: Fedora Core, CentOS
Posts: 1,019

Rep: Reputation: 45
I seriously doubt that running Zone Alarms is going to work under wine, but hey, I could be wrong.

The firewall that comes w/ linux is called iptables. It is really not capable (as far as I know) of blocking outgoing connections based on the program that is attempting to use the network. I will block outgoing ports. An example is that it can block outgoing connections to port 80. Any webbrowser that tries to connect to a webserver that is using the standard http port will be blocked from running.

The firewalls you can download should all be able to do this since all the firewalls for linux are basically configuation programs for iptables.

Hope that helps.

Last edited by benjithegreat98; 03-25-2005 at 11:48 PM.
 
Old 03-25-2005, 10:30 PM   #4
foo_bar_foo
Senior Member
 
Registered: Jun 2004
Posts: 2,553

Rep: Reputation: 53
generallty on linux (unlike windows) it is safe to allow all outgoing connections

what you can do if you are ubber paranoid from years of windows abuse is to
(using ip tables)
close all outgoing
allow all established and related outgoing so apps can negotiate ports
allow connections to your isp's dns server
allow ougoing to all web servers
allow outgoing to your specific smtp and pop3 or imap mail
allow any other outgoing services you use
log then drop everything else

then you can check logs to look for trojans or whatever
 
Old 03-26-2005, 05:01 AM   #5
noteventime
Member
 
Registered: Mar 2005
Location: a small planet in the vicinity of Betelgeuse
Distribution: ArchLinux
Posts: 53

Original Poster
Rep: Reputation: 15
Ok thanks, I'm partly a bit paranoid after using windows for WAAAAYYY to long. And partly im just intrested.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Firewalls mrfixit1951 Linux - Security 7 07-18-2005 05:15 AM
Getting around firewalls Gameon Linux - Networking 13 05-11-2005 09:27 PM
firewalls anyone? BajaNick Linux - General 0 02-05-2004 10:08 PM
Firewalls matt3333 Linux - Software 4 07-03-2003 11:53 PM
Linux Firewalls [iso firewalls] yoogie Linux - Networking 3 01-28-2002 07:56 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 04:06 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration