Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
Is Ident required? If so, is a fake daemon preferable?
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Networking & Security
View previous topic :: View next topic  
Author Message
landon
Apprentice
Apprentice


Joined: 09 Mar 2004
Posts: 159

PostPosted: Wed Jan 19, 2005 3:29 pm    Post subject: Is Ident required? If so, is a fake daemon preferable? Reply with quote

Basically as the title suggests.

Does the absence of Ident result in delayed connections to ftp, or irc?

I've seen several articles on using a fake daemon, but at the same time, I've also seen exploit warnings on a lot of the ones suggested.

What should I consider?
Back to top
View user's profile Send private message
adaptr
Watchman
Watchman


Joined: 06 Oct 2002
Posts: 6730
Location: Rotterdam, Netherlands

PostPosted: Wed Jan 19, 2005 3:33 pm    Post subject: Reply with quote

Yes, the absence of an identd on port 113 may delay or even fault many network protocols, including SMTP, FTP and IRC.

This will vary from server to server; whether or not to insist on ident responses is usually configurable since not many people use them anymore because they are so easily faked.

Running a fake identd should do fine; it doesn't really matter what the response is.
_________________
>>> emerge (3 of 7) mcse/70-293 to /
Essential tools: gentoolkit eix profuse screen
Back to top
View user's profile Send private message
landon
Apprentice
Apprentice


Joined: 09 Mar 2004
Posts: 159

PostPosted: Wed Jan 19, 2005 3:43 pm    Post subject: Reply with quote

Can you recommend any in particular? Or a list of a few?
Back to top
View user's profile Send private message
adaptr
Watchman
Watchman


Joined: 06 Oct 2002
Posts: 6730
Location: Rotterdam, Netherlands

PostPosted: Wed Jan 19, 2005 3:47 pm    Post subject: Reply with quote

Erm... emerge -s identd ?

Gives me 6 results, 1 masked.

But it may be a lot easier to sidestep the problem, in one of 2 ways:

- set up which ever router handles your internet connection to provide the response, or
- configure a firewall to actually close port 113, that should give the requestor the heads up that waiting for a timeout is rather stupid...
_________________
>>> emerge (3 of 7) mcse/70-293 to /
Essential tools: gentoolkit eix profuse screen
Back to top
View user's profile Send private message
Robin79
l33t
l33t


Joined: 18 Oct 2003
Posts: 632
Location: /home/valdemarsvik

PostPosted: Wed Jun 15, 2005 6:01 pm    Post subject: Reply with quote

So does this work on ftps? i use pftpfxp
_________________
Gentoo 2005.0
ASUS P5AD2 Deluxe MB
Intel P4 3.2GHz
PCI-E Nvidia Geforce PCX 5750
--------------------

Registered Linux User Nr # 319050 http://counter.li.org
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Networking & Security All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum