LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Security
User Name
Password
Linux - Security This forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.

Notices


Reply
  Search this Thread
Old 07-18-2004, 06:50 PM   #1
big_mustard
LQ Newbie
 
Registered: Jul 2004
Posts: 1

Rep: Reputation: 0
Unhappy Telnet Service Not Available


The telent service is not available. I am running Red Hat Fedora 2 on i386.

SSH works and I understand the reasons for using it, but I want telnet to
work.

The chkconfig commands returns:

[root@linux1 sbin]# chkconfig --list telnet
error reading information on service telnet: No such file or director

It is not configured in xinetd.d

[root@linux1 xinetd.d]# ls
chargen cups-lpd daytime-udp echo-udp services time
chargen-udp daytime echo rsync sgi_fam time-udp


And I cannot even find a telnetd deamon. I looked for in.telnet.d and telnet.d.

I looked to try to reinstall it but could not figure out what package to add.

Help please,

Sincerly,
Big Mustard
 
Old 07-18-2004, 07:00 PM   #2
chort
Senior Member
 
Registered: Jul 2003
Location: Silicon Valley, USA
Distribution: OpenBSD 4.6, OS X 10.6.2, CentOS 4 & 5
Posts: 3,660

Rep: Reputation: 76
You can't find the telnet service for a very good reason: You shouldn't use it.

I will never understand why so many newbies insist on using telnet, even though ssh is installed by default and everyone tells them not to use telnet.
 
Old 07-18-2004, 10:06 PM   #3
ppuru
Senior Member
 
Registered: Mar 2003
Location: Beautiful BC
Distribution: RedHat & clones, Slackware, SuSE, OpenBSD
Posts: 1,791

Rep: Reputation: 50
look for the telnet-server rpm and install it.

If you want to telnet to work, you need the telnet server running on your work computer. To use the telnet client, you do not neet to install the telnet server component.

If you are going to connect to work over the net, you are strongly recommended to use ssh. If your problem is some windows clients wanting to connect to the Linux server, you can download and use Putty which is a free ssh client.
 
Old 07-19-2004, 04:58 AM   #4
blackzone
Member
 
Registered: Jun 2004
Posts: 256

Rep: Reputation: 30
Probably a stupid question.

For cisco routers and other firmware they usually use telnet right?

if ssh is so much more secure why use telnet instead of ssh?
 
Old 07-19-2004, 05:23 AM   #5
ppuru
Senior Member
 
Registered: Mar 2003
Location: Beautiful BC
Distribution: RedHat & clones, Slackware, SuSE, OpenBSD
Posts: 1,791

Rep: Reputation: 50
Perhaps Cisco would be the right people to answer that question
 
Old 07-19-2004, 07:02 AM   #6
rmanocha
Member
 
Registered: Oct 2003
Location: Austin,TX
Distribution: Debian SID-->fully content-->Love APT,kernel 2.6.4
Posts: 327

Rep: Reputation: 30
Quote:
Originally posted by blackzone
Probably a stupid question.

For cisco routers and other firmware they usually use telnet right?

if ssh is so much more secure why use telnet instead of ssh?
'cause they are stupid and also 'cause windows does not come with a ssh client.
I would suggest having ur cisco router behind a firewall and using ssh to go access the firewall and then telnet to access the router.
thats how it is at my workplace and this method is highly secure.
 
Old 07-19-2004, 06:23 PM   #7
newpenguin
Member
 
Registered: Sep 2002
Location: lahore pakistan
Distribution: slackware,redhat, FreeBSD,openbsd
Posts: 219

Rep: Reputation: 30
cisco runs away from opensource.
in their every books docs they recommend MS products.
 
Old 07-19-2004, 06:43 PM   #8
azure
LQ Newbie
 
Registered: Jul 2004
Distribution: FC2
Posts: 3

Rep: Reputation: 0
well, there is a list of services that you can turn on and off...start X and in a console type: system-config-services and u'll open up the config program, u can check or uncheck telnet and then save your settings,

but if you can't find telnet in that list then, i guess u'll just need to find it in your install cd's, runno which rpm that would be tho..
 
Old 07-20-2004, 08:02 AM   #9
jschiwal
LQ Guru
 
Registered: Aug 2001
Location: Fargo, ND
Distribution: SuSE AMD64
Posts: 15,733

Rep: Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682Reputation: 682
I am not sure, but if you do not enable the telnet server, but use the telnet command in the shell, could you connect to the cisco router? I also believe that you can disable telnet on the router for the network interface and connect directly to the serial interface instead.
In the very least, disable the telnet service on your computer after using it.
 
Old 07-20-2004, 03:47 PM   #10
btmiller
Senior Member
 
Registered: May 2004
Location: In the DC 'burbs
Distribution: Arch, Scientific Linux, Debian, Ubuntu
Posts: 4,290

Rep: Reputation: 378Reputation: 378Reputation: 378Reputation: 378
You don't have to have the telnet service running on your machine to be able to telnet TO other machines. Running the telnet service allows users on other computers to telnet onto your machine.
 
Old 07-21-2004, 02:26 AM   #11
chort
Senior Member
 
Registered: Jul 2003
Location: Silicon Valley, USA
Distribution: OpenBSD 4.6, OS X 10.6.2, CentOS 4 & 5
Posts: 3,660

Rep: Reputation: 76
Most versions of Cisco produts have SSH in addition to telnet, it's just that most admins are lazy and most use Windows, which does not come with an SSH client by default (PuTTY is so easy to download, so that's no excuse). Also, interestingly enough Cisco has pretty much matched bug for bug with OpenSSH, so despite their supposed laothing of Open Source, it looks pretty convincing that they actually use it (secretly).

As mentioned, you do not need to run the telnet service in order to use the telnet client.
 
  


Reply



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
how to start the telnet service prasanth_p_bhat Linux - Software 3 03-12-2010 02:44 AM
Telnet service cannot be started! supermyself Linux - Networking 2 06-09-2005 11:46 AM
Telnet service problem sanjay2004 Linux - Networking 2 12-23-2004 08:31 PM
telnet service zaman Linux - Security 3 10-21-2003 04:24 PM
Telnet Service zjustin Linux - General 0 01-19-2003 07:55 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Security

All times are GMT -5. The time now is 06:01 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