Fedora Networking :: How To Configure Telnet

Dec 26, 2010

install telnet in fedora 14 then how to configure telnet?

View 13 Replies


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.

View 1 Replies View Related

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?)

View 1 Replies View Related

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.

View 1 Replies View Related

Server :: Telnet : Configure The Login Retry Count?

Jan 6, 2011

I have two servers running Linux 2.6.9 kernel.When i telnet to server1 , the telnet will be disconnected only after 3 login failures. While, when i telnet to server2, telnet will be disconnected after the first login failure.expect server2 to behave the same way as server1 when telnet is executed.Kindly tell me where i should tweak my servers so that i could achieve what i expect.

View 1 Replies View Related

Fedora Networking :: Telnet Works External In DMZ Not With Local IP

Jun 8, 2011

I'm running Telnet Server, VFTP, and VNC on a Fedora 14 box. The box's internal IP is This machine is configured to live in the DMZ, The firewall is up on both the router and this box. I can remote in from home using our external IP. I can FTP. I can Telnet. All using our external IP. When i'm in the office, i can remote in using our external IP. I can FTP. I can Telnet. Again, all with the external IP. If i attempt to telnet i get a connection refused. i can ping the 192.168 address

nmap tells me that all 1000 ports on are closed
nmap tells me that my expected ports are open on the external IP.

.... This is a relatively new conundrum as it "used to work", and only appears not to since our last reboot (power outage). I know i have to be missing something simple here, but i differ to the experts.

View 5 Replies View Related

Fedora Networking :: Telnet To SMTP From Remote Not Working

Jul 10, 2011

I have a sendmail daemon running on Linux, I can telnet @ port 25 from local shell, however if I telnet from a remote system @ port 25, it doesn't work. There is no firewall in between.

View 3 Replies View Related

Fedora Networking :: Telnet Works Localhost But Not Network / Firewall Disabled

Jun 3, 2011

I'm working on setting up access for our developer via Telnet, we are on a local network behind a physical firewall. I set up the standard Telnet service for Fedora15 and from localhost I can login via any user and root.... However I cannot login from another terminal on the LAN, even though I can ping and FTP to the fedora15 box. I added the firewall rules for telnet, that did not work, so I disabled the firewall, still cannot get a connection via port 25. I feel either port 25 is closed in another manor or the telnet is restricted to the localhost.

Also I cannot login to root to configure the Firewall Desktop GUI, only standard users, is this an issue? I also cannot login to the console as root even though I use the correct password.I can only su to root and sometimes it is a PITA. There must be some settings to clear these issues up...

View 2 Replies View Related

Ubuntu Networking :: Telnet Via Ssh On APC UPS?

Jan 12, 2011

I have some APC UPS devices that I'm trying to log in to. They are currently configured to use telnet -- as a safety precaution, they can only be accessed from our 'bounce' machine. So because I want to do this from a script, I'm doing it like this ssh decoherence@bouncemachine telnet stupidAPCdevice

This works fine on all the other devices I'm trying this on (Cisco gear, mostly) but the APC won't take any input. I get the login prompt but when I type in my username, ssh echoes it but the APC doesn't appear to ever receive it. It just hangs there at the username prompt. I'm guessing that its telnet implementation is a bit weird (seriously, all the management stuff on APC gear really sucks but anyway

Anyway, I'm just wondering if there are any simple flags I can pass to telnet to make it cooperate. The man page talks about a 'mode' command that lets you fiddle with LINEMODE which sounds like it might be promising but I don't know how to set that in the command line as opposed to interactively.

View 1 Replies View Related

Networking :: How To Use Telnet Command

Sep 1, 2010

how to use telnet command

View 3 Replies View Related

Ubuntu Networking :: Telnet Into 9.10 Box From Within Network

Mar 2, 2010

I have Ubuntu 9.10 hooked up to my router through a wired NIC, and a couple of windows machines that are connected to the router through wireless cards.I want to telnet or ssh into the ubuntu box using putty on one of the windows machines. I have attempted to do this using the ubuntu ip address and the name of the box, and neither approaches have worked.

View 1 Replies View Related

Networking :: Configuration Utility On SSH/Telnet?

Nov 30, 2010

I would like to write a small configuration utility that will act as a daemon on the telnet port and SSH port that will only allow access to, and modification of, specific information in a structure imposed by the utility. How do I set this utility up so that when a user opens a telnet connection (or ssh) to the device, they are actually connected to the utility?

View 3 Replies View Related

Networking :: Number Of TCP Concessions With Telnet?

Dec 11, 2010

I have a doubt. If i write for instance the command "telnet myserver.mysite" and I manage to connect to the server, how many TCP connections are established?

View 2 Replies View Related

Networking :: Ping And Telnet In Rhel5?

Feb 3, 2011

my company there is 1 RHEL5 server and around 50 systems connected to it( running windows ). I want to know who is pinging or telneting to the server how can I find this information on the server OR where should I look for this information in the linux.

if I want to explore on this topic (i.e. who is trying to connect to server, from where user accessing server, whats his/her ip, whats his/her os etc. ) where should I look for it on the net ??

View 4 Replies View Related

Networking :: Telnet - Handle Control C ?

Aug 22, 2010

I am trying to use telnet from linux to connect to the port specified by me and trying to handle control C. But once Ctrl C is pressed the output on the client side stops showing. The server sends data but client doesnt print the same.

View 2 Replies View Related

Networking :: Telnet Is Not Working With Iptables?

Sep 29, 2009

i want to open specific port using iptables i.e 3159 Whenever i tried to telnet it generates the following error


# telnet 3195
telnet: connect to address No route to host
telnet: Unable to connect to remote host: No route to host

but when I stopped iptables


# service iptables stop

Its working fine

i added the ports in iptables i.e.


#iptables -A INPUT -p tcp --dport 3195 -j ACCEPT

for safe side I also added telnet port


# iptables -A INPUT -p tcp --dport 23 -j ACCEPT

but result was same.... In short telnet works without iptables but with iptables it generates the error mentioned above

View 10 Replies View Related

Networking :: Unable To Telnet Using IPv6

Jul 21, 2010

Hey even I'm not able to telnet to IPv6 address on port 23

View 2 Replies View Related

Networking :: Copying /var/named Files From Fedora 7 To Fedora 11 Does Not Configure Bind?

Aug 12, 2009

host A: Fedora 7 has bind 9.4.2
host B: Fedora 11 has bind 9.6.1

I want to migrate my bind configuration from A to B I've read the release notes and man pages and I can't see why copying


I checked /etc/sysconfig/named too... Seems to have no effect on my brand new install on Fedora 11. Host B stays basically un-configured.

View 2 Replies View Related

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

Nov 25, 2010

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

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

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

View 6 Replies View Related

Networking :: Ping Works But Telnet Does Not Work?

May 20, 2011

When I ping a destination IP address, it responds. However, when I try to telnet or ftp or sftp to the same IP address, it does not connect.

I do not know the physical location of the machine.

View 11 Replies View Related

Ubuntu Networking :: SSH / Telnet Connection To Desktop Within LAN Times Out

Dec 16, 2010

Wrong prefix, its Ubuntu not Lubuntu. Three devices:

Laptop 1:
---Can ssh to any device.
---Accepts any internal ssh.

Desktop 1:
---Can ssh to any device.
---Accepts any internal ssh.

Desktop 2:
---Can ssh to any device.
---Can ssh to itself through localhost or
---Any ssh(and telnet) aimed at this device times out.

All three devices recently had openssh-server installed yet only one seems deviant. I've been trying to ssh into desktop 2 to no avail, yes the machine is reachable, yes sshd is running, yes ufw is disabled, and no there is no external firewall that I know of. Anything else I can try? The router for the LAN being dd-wrt.

View 1 Replies View Related

Networking :: Block Sending Mails Via Telnet In Postfix?

Jun 16, 2011

I implemented postfix as mail gateway but i need to block the ability to send
mails via telnet

How can i achive this?

View 1 Replies View Related

Networking :: Socket Programming - Connect To Port Y On IP X With Telnet

Sep 16, 2010

I have a customer who is complaining that they can connect to prt y on IP x with telnet. They are seeing the following:

telnet x.x.x.x y
Trying x.x.x.x...
Connected to x.x.x.x.
Escape character is '^]'.

after some time the connection of course times out. Connection closed by foreign host. There is no telnet service running on this port so they cannot do anything, but they are complaining tht the fact that telnet "connects" is a security risk. I am having difficulty explaining why they are able to connect with telnet. I know it has to do with the socket layer API in Linux but I am having difficulty explaining this sufficiently. I also can't just say "this is the way linux works" to them. I am looking through "UNIX Network Programming" by W.

View 3 Replies View Related

Networking :: Telnet: Connect To Address Connection Refused

Jul 8, 2011

I am facing an error when I run the following command telnet localhost 7777

Trying ::1...

telnet: connect to address ::1: Connection refused


telnet: connect to address Connection refused

View 2 Replies View Related

Fedora Networking :: Cannot Configure New Networks?

Sep 4, 2011

Using Fedora 15 with Gnome 3 I am unable to configure a new network connection as the configure button is greyed out.I use a network without DHCP thus auto-connect is useless and I must enter the network configuration myself. This was simple to do in Gnome 2.x but is impossible in Gnome 3 as the configure button is greyed out when your not 'connected' to the network. Also when the auto-connect fails it switches the NIC 'off'.How am I meant to connect to a network requiring manual configuration when I can only configure networks I am already connected to?FYI: I have edited the configuration of other networks which do utilise DHCP but only after the initial connection was established by DHCP.

View 4 Replies View Related

Networking :: Configure Ad-hoc Connection In Fedora 14.?

May 3, 2011

can anyone tell me the difference between the linux ad-hoc connection and window ad-hoc connection .....is it possible to make ad-hoc connection in fedora 14
if it so. how to setup ad-hoc connection between two laptop.

View 1 Replies View Related

Fedora :: Cannot Telnet To Host Ip

Feb 11, 2011

I have a fedora13 server running and for some reason cannot telnet using the hosts ip address. I have disabled the iptables firewall as well as selinux. I have a soap server app that needs to telnet to the fedora13 server. Strange thing is, I can telnet to localhost, just not to hostname or host ip address

View 9 Replies View Related

Red Hat / Fedora :: Can't SSH Or Telnet Through Putty..

May 26, 2011

I am using RHEL 5.4 in vmware and its working fine I configured ssh in rhel and tried to login through Putty from host machine (windows xp sp3) am not able to login, so what should I do fo it frndz.

View 9 Replies View Related

Networking :: Telnet Mx1.hotmail.com 25 From All Other Machines Apart From Newly Installed 9.10 Laptop

Jan 8, 2010

I can telnet mx1.hotmail.com 25 from all other machines, apart from my newly installed ubuntu 9.10 laptop. I just installed exim4 and mailx and set in /etc/exim4/update-exim4.conf.conf: dc_eximconfig_configtype='internet' But I can't send mail cause telnet mx1.hotmail.com 25 doesn't work. I can ping mx1.hotmail.com just fine.

View 2 Replies View Related

CentOS 5 Networking :: Telnet Localhost 25 Hanging After Escape Character Is '^]'?

Dec 5, 2010

I have recently upgraded to a VPS for the purpose of web hosting a group of sites related to my business.The reason for the upgrade was because we wish to run a shopping cart software which required greater memory for PHP and the VPS was the most economic solution. So, I have very basic linux knowledge but I am the definition of a newbie when it comes to going further than just scratching the surface of server configuration! I have successfully hosted our main site for a number of weeks but recently the postfix service stopped sending mail. I have Plesk Control Panel installed and postfix continually shows as not started even though in SSH the service status is definitely running - I have gone through the troubleshooting checklist here (http://www.postfix-book.com/debugging.html#d0e6) but can't get any further than section 2.1 as when running the host command (#host relay-test.mail-abuse.org), I get # -bash: host:command not found. I've gone further in the document but not found any issues...

When postfix was working properly (i.e. sending emails!), the plesk CP showed the service as started and all emails from the website were sending as normal. The mailq command is showing the messages stuck in the mailq and the maillog shows the following:- http://pastebin.centos.org/36446 - these are the latest few pages.To check the configuration and basic elements I have flushed the mailq (which shows a stack of messages waiting) and I have also spent a long time (2 weeks) reading up on the parameters that should be in main.cf and master.cf.I have found that when I 'telnet localhost 25' I get the following response...[root@s15397216]# telnet localhost 25Trying to localhost.Escape character is '^]'.

View 2 Replies View Related

Copyrights 2005-15 www.BigResource.com, All rights reserved