General :: Disable Telnet Command From Client End?

Jul 20, 2011

From Linux client end I can easily telnet to a remote Linux server easily , Like :

[root@apps1 ~]# telnet 192.168.1.14
Trying 192.168.1.14...
Connected to 192.168.1.14 (192.168.1.14).
Escape character is '^]'.
catalog.aibl.com (Linux release 2.6.18-8.el5 #1 SMP Tue Jun 5 23:25:19 EDT 2007) (1)
login:

But I want to disable the "telnet" command from the client end , so that I cannot telnet to a remote linux server from the Linux client end

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General :: Compiling Telnet Client?

Apr 26, 2010

i have a telnet client src rpm. I need to make some changes in the src and recompile it. i am having problems recompiling src rpm

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General :: Disable Telnet And Ssh For A Specific User?

Nov 12, 2010

I am looking for a way to deny telnet and ssh to one specific user. So far I've only tested with telnet and my attempts have been limited to various hosts.deny entries:

in.telnetd : user@server
in.telnetd : user@server.domain.com
in.telnetd : user@IP_address
in.telnetd : user@.domain.com

None of these work. The only thing I've found that does work is:in.telnetd : IP_addressBut this is only a semi-viable solution because we will soon have multiple logins for the one username from different servers and sub-nets. Ideally, I'd like to be able to deny telnet and ssh access to this username regardless of where the login originates. I suppose it would be possible to specify each server IP, but that'll be a bear to maintain

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General :: Configure A Command To Run On Login Through Telnet?

Feb 9, 2010

I want to run a command every time I log in to my Ubuntu box, but only if I'm connecting through telnet, not if I'm logging in at the console.

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General :: Command Line To Open A Second Telnet Session ?

Mar 15, 2010

On my ubuntu 9.10 pc i am not running a GUI.

Every thing is run from command line.

How do i start a second telnet session from command line.

Plus can i have 4 telnet session open and move from one to the next and back again.

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Security :: How To Trojan A Telnet Client

Jun 20, 2010

I want to log the user name and password passed through the default telnet client on Fedora (7 to 11) system.I have thought of something like this:(Download Telent client src)->(modify src)->(compile and install)but i am not sure...

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Networking :: Way To Configure Telnet Server Without Disable Firewall

Oct 13, 2010

I have a question about telnet.Is there any way to configure a telnet server without disable firewall.I am using redhat 5.2 and fedora 12.I have lack of knowledge about firewall.

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General :: Disable The Su Command On A Server So That Users Cant Run The Su Command?

Apr 29, 2010

i want to disable the su command on a server so that users cant run the su command i removed the comment from the 3 and 5 line in /etc/pam.d/su file but it doesnt seem to work the file is shown below

#%PAM-1.0
auth sufficient pam_rootok.so
# Uncomment the following line to implicitly trust users in the "wheel" group.

[code]....

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Fedora :: Enable And Disable These Services: FTP,Email,Web Server,Firewall,Telnet,LAN?

Sep 12, 2009

how to enable and disable these services: FTP,Email,Web server,Firewall,Telnet,LAN? Is there any general way to manage services?

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Networking :: How To Use Telnet Command

Sep 1, 2010

how to use telnet command

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Networking :: Execute A Command (ping Or Telnet Or Ssh) On Ip 192.168.0.20

Nov 25, 2010

When I execute a command (ping or telnet or ssh) on ip 192.168.0.20 it is ok.

If I execute the same command on
ip 192.168.0.020, it looks for
ip 192.168.0.18 instead of
ip 192.168.0.20

And it's the same for others ip if I put a 0 ahead last byte.

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General :: Disable Acpi On Command Line?

Aug 14, 2010

Bios is a good recommendation but will that affect the fan speed? I know about the acpi=off option, this does not work properly- even on suse. Maybe noapic would work better? Really is there a cover all command line instruction (for all distros) to turn the annoying thing off? Main problem occurs when watching the telly and the screensaver kicks in, with suze it turns the sound off as well, even after you have re-entered the password

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General :: TCSH - How To Disable Spelling Correction Of Command

Aug 18, 2010

Recently, when we updated our OS, we got a new tcsh feature enabled by default. Whenever I type a command that tcsh doesn't recognize, I get an annoying spelling correction like:
% cats
CORRECT>cast (y|n|e|a)?

I want to disable this feature and allow misspellings to error out like:
% cats
cats: Command not found.
Is my enter key somehow getting re-bound? What could be causing this?

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General :: Disable Security - Enable Through Command Line?

Dec 27, 2010

I am using Fedora 14. By default Security Enhanced Linux is enabled in Fedora 14. Now is there any way to disable it by command line and then again enable it through command line.

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Ubuntu :: Telnet Command Returns Different Output If Launch It From Cron

May 29, 2011

I have a test socket on a server. If I connect to it using telnet, I get exactly the response I expect. So I know the socket works, and the script on the server works:

Code:
my-desktop:~$ telnet 192.168.1.1 3333
Trying 192.168.1.1...
Connected to 192.168.1.1.
Escape character is '^]'.
RAM: 90 % Free ( 2793 M free, 3082 M total)

Connection closed by foreign host. And if I script it, I get almost the same response from Telnet, but still a valid response from the socket. So I know that my script works:

[Code].....

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General :: SSH Client And Command Prompt Replacements Windows Look-and-feel?

Jun 9, 2010

I've worked exclusively in Windows. I can handle that.I've worked exclusively in DOS (a long time ago!). I can handle that.I've worked exclusively in Unix.I can handle that.Right now, I am developing a command-line (python) application on a Windows machine, testing it in a DOS box (i.e. Windows' Command prompt), and then deploying it to Linux, and running it with PuTTY.

I cannot handle that. My productivity drops dramatically when CTRL-C cuts in one window (Windows) and kills the process in another (DOS, Linux).My productivity drops dramatically when Enter copies the selection in one window (DOS), and deletes the selection in another (Windows), and runs the current half-edited command in the third (PuTTY).My productivity drops dramatically when I cannot hit Undo, Home or End.The Solution I am Seeking

An SSH/Bash command-line client that runs on Windows and, to the extent possible, uses all the standard Windows shortcuts (Cut, Copy, Paste, Undo, Home, End, Insert, Shift-Arrows, etc.) work on a bash command line. Bonus points if it puts the cursor between letters, rather than on them.Plus, an equivalent DOS command-line drop-in that runs on Windows, and provides the same interface.need to be special buttons to actually transfer CTRL codes (like CTRL-C) through in the cases I need them.I suspect the SSH client will need to be specific to a shell (so it knows when it is at the command prompt, and when it is inside a running app.)I know there are many SSH clients, but I am looking for advice for a particular need.PuTTY feels like an escape route for Unix programmers stuck on Windows. I am the opposite.Can anyone recommend one (or maybe a combination of an SSH client and an Command-Line replacement)?

Update: After seeing the early answers here, I turned my requirements into a blog article, which may give more background in the direction I am looking.

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General :: Command Line BitTorrent Client For CentOS Linux?

Jan 4, 2011

Is there command line BitTorrent Client in Linux? A PHP / Python script would be nice too.

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General :: Sending Messages Directly At Command Prompt Of Client?

Jun 11, 2010

Can I make my messages directly appear at client from server? Normally we type
tailf /var/log/messages
to see messages sent by other machine. So can I send my messages directly at command prompt?

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General :: Disable The Terminal Beep When Running The Shutdown Command?

Sep 3, 2009

I've used the following script here: [URL] to upgrade Alsa to 1.0.21 in Ubuntu 8.04. Now whenever I run:

Code:

sudo shutdown -h <time> or sudo reboot from the terminal I get a rather annoying beep sound. What's even more annoying is if I use the shutdown command to specify a time I get a beep every 10 minutes or so.
I've tried disabling the terminal beep in the terminal profile, disabling the beep in System/Preferences/Sound, adding "blacklist pcspkr" to /etc/modprobe.d/blacklist, and running gconf-editor from the terminal and setting /desktop/gnome/peripherals/keyboard/bell_mode to 'off' rather than 'on'.

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Networking :: Difference Between Krb5-telnet And Ekrb5-telnet

Feb 18, 2010

I am trying to find the difference between the above two services. Both are under xinetd and can someone please explain the difference between them (is one more secure than the other one?)

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General :: Disable - Non-root Shell Command To Find If A User Account Is Enabled Or Not?

Aug 10, 2011

Is there a non-root shell command that can tell me if a user's account is disabled or not? note that there is a fine distinction between LOCKING and DISABLED:

LOCKING is where you prepend ! or * or !! to the password field of the /etc/passwd file. On Linux systems that shadow the passwords, this marker flag may be placed in /etc/shadow instead of /etc/passwd. Password locking can be done (at a shell prompt) via password -l username (as root) to lock the account of username, and the use of the option -u will unlock it.

DISABLING an account is done by setting the expiration time of the user account to some point in the past. This can be done with chage -E 0 username, which sets the expiration date to 0 days after the Unix epoch. Setting it to -1 will disable the use of the expiration date.

The effect of locking to to prevent the login process from using a supplied password to hash correctly against the saved hash (by virtue of the fact that the pre-pended marker character(s) are not valid output character(s) for the hash, thus no possible input can ever be used to generate a hash that would match it). The effect of disabling is to prevent any process from using an account because the expiration date of the account has already passed.For my situation, the use of locking is not sufficient because a user might still be able to login, e.g. using ssh authentication tokens, and processes under that user can still spawn other processes. Thus, we have accounts that are enabled or disabled, not just locked. We already know how to disable and enable the account - it requires root access and the use of chage, as shown above.To repeat my question: is there a shell command which can be run without root privileges which can output the status of this account expiration info for a given user? this is intended for use on a Red Hat Enterprise 5.4 system.The output is being returned to a java process which can then parse the output as needed, or make use of the return code.

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Debian Configuration :: Can Disable Client Mount As NFSv4?

Aug 7, 2015

I have Debian 7 running on RPi2 with Kodi. My NFS server is running on Slackware 14.1 which doesn't have full support for nfs4. I think this is causing some slowdowns/extra time when trying to stream video. Debian 7 by default mounts NFS as nfsv4, I would to like to disable this if possible. If so how?

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Red Hat :: Disable DHCP Client Requests On Rhel 5.4 64bit?

Jan 28, 2010

i want to disable all DHCP request, can i turn off the client that if a MAC address changes a dhcp request is not automatically made?reason for this: I have HP blade running with an Intel NC260M mezzanine card running with virtual connect. I have experienced problems with firmware levels with this card where the virtual connect mac address is ignored and the real MAC displayed. As we are using bonds on the servers and have 6 NICs installed we have to tie down the MAC address to a bond. A blade was replaced today without the firmware update and the real MAC appeared, a dhcp request was made and my-eth[2-3] and resolv.conf files were over-written by the dhcp supplied

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General :: Command Based Email Client To Send Email Through Secure Smtp?

Jul 26, 2010

In my Windows environment, I use email client such as Microsoft Outlook to connect to our email server to send email with the following configuration:

Incoming server (POP3): 995 - (requires with SSL)
Outgoing server (SMTP): 465 - (use encrypted connection SSL)

[code]....

And the mail server requires user ID login and password.how do I setup a text command based email client in my Linux (Centos 5.1) to send out email through the existing email server above, which is in another machine? The email client has to be text command based because I need to use command line to send notification email from anothar application installed in my Linux (Centos 5.1) Since the email client will only be used to send email notification, I don't require setting up of an email server in my linux.

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Networking :: Does The Command "telnet" Works When Remote And Local Are Different Operating System?

Feb 12, 2009

Is it possible to log into a remote windows computer from my local linux computer and vice-versa using the "telnet" command?

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General :: Disable Blank Cd Autostart - Disable The Window And The Icon From The Desktop?

Jan 24, 2011

I have Ubuntu 10.04 with Gnome. Whenever I put in a blank CD/DVD an icon on the desktop appears named "Blank CD/DVD" and a window appears asking me what I want to do with it. How do I disable the window and the icon from the desktop?

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General :: Allow Telnet From One Ip Segment?

Mar 8, 2010

I want to allow only ip segment(212.154.75.0/24) to telnet the server(RHEL-7.3).How this can be done using iptables?In the server i gave this command:

# iptables -I FORWARD -s 212.154.75.0/24 -p tcp --dport 23 -j ACCEPT
output is
0 0 ACCEPT tcp -- * * 212.154.75.0/24 0.0.0.0/0 tcp

[code]....

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General :: Can Ssh Into Ubuntu But Cannot Telnet

Aug 21, 2010

i set up a MAC power pc with ubuntu. i can ssh into it, but i cannot telnet. this is what i get when i telnet to the host i can only telnet to port 80

[Code]....

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Security :: How To Disable Rm Command For An User

Apr 7, 2010

I just want to disable rm command for an user..Root only need to use that

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Sep 29, 2010

I am unable to locate ftp binary on SuSE 10. Some one know the location of the binary / package which has this binary.

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