I have done some tcp stream multiplexer. I'm using it as independent login proxy (user is once authenticated and then switched to hidden device (cisco)). But I need to reset session (no connection) configuration, because cisco supports xterm, ctr-c, etc... Am I able to do? Just restart negotiation? Using IAC codes?
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I have a TCL expect script that spawns a telnet session to a Nortel DMS100 to execute some commands. The strange thing is that the response in expect_out is not consistent. It sometimes contains a extra enter or newline. This results in differences in the expect out buffer. Here is a part of the script:
send "time
"
sleep 1
expect -re ">"
[code]...
This command displays the time. The correct output should be (with log_user=1):
>time
Time is 11:44:04
>
But sometimes the output is:
>timeTime is 11:45:04
>
As you can see here the is missing on the command that expect sends , or at least in the echo that is comming back. I use a split command to filter out the response in the expect_out buffer, but this fails when the is missing. Here is a example with the debug enabled:
[code]....
I suspect it has something to do with a slow response of the switch. I tried to send the time command slow and with the send_human but the result is the same. A timeout between the send and expect also doesn't help.
hypothetically speaking, can i write a script in which a telnet session is opened and then some more commands are forwarded to that session?
View 4 Replies View RelatedI am running Ubuntu 9.04 on a wireless networked host machine. The wireless NIC is usb based. Its running inetd for network based servers (telnet, ftp etc).For some reason telnet, ssh or any application specific connection, hangs for a few seconds and then comes back. This happens after every few minutes. I do not loose any sessions or any data flowing across but it is sort of very annoying.It is a dual boot machine and I have also got Windows XP 64-bit. When am running on windows this does not happen, hence am not sure if it is something to do with the wirless nic or something else
View 2 Replies View RelatedI am using lxterminal to connect to a telnet session on another *nix box.
After I connect, I always have to enter the command
Code:
export TERM=xterm
is there anyway to automate this?
I want restrict telnet session to users.
That means the client login one user at a time. not multiple login.
For example:
I want restrict this. How to restrict one user to use multiple login.
I am moving my migration forward and am trying to get my expect scripts tested and found one that no longer works. Quite simply, it spawns a telnet session to a router.
#!/usr/bin/expect
set env(TERM) vt100
set timeout 3
set send_human {.1 .3 1 .05 2}
set timeout -1
#
spawn telnet 10.254.3.232
and that's it. The result of the script is that the command to spawn simply shows up on the screen like it is a puts command. On my older openSUSE system, it worked fine. I am running Ubuntu v9.10 desktop, and expect and its libs are patched to the latest rev, expect is 5.43.0.
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.
where to set the telnet session timeout for the IDLE time in redhat linux.
View 2 Replies View RelatedI have ubuntu 10.04 & I telnet to windows vista. Even if I create a hidden process [URL].. from batch file . It seems the process gets killed when I end connection at port 23 to host. Maybe , the hidden process created is still child of current telnet session so tree is killed as session ends. Is there a way to keep process running even after telnet session has ended ?
View 6 Replies View Relatedfinally i found the script for telnet automated login session...<<Mod edit: questionable link removed>>
View 4 Replies View RelatedI have a very bad attempt at hashing the components of an tcp session to assign/locate the session in a hash table bucket. I am pretty sure that it has a very high collision rate and when there are a very large number of tcp sessions my application is having to search a long linked list to find the session within the bucket.
All the hashing functions I have found take a single string input where I need to input several integers and hash them into a single result. My guess is that any real hashing function is going to produce better results than what I am currently doing.
[Code]...
I have got three computers at my home[A,B,C] ( all connected to each other), now I connect to B from A using telnet( $telnet ip_B) , but when I try to connect to C using this telnet session( telnet > open ip_C) , I get this error, "already connected to xxx". Is it possible to connect A to B and then use that session to connect to C, so that C finds that the request is being asked by B.
View 7 Replies View Relatedwhy my .xprofile is not being run at startup or after I restart my X session? It has all the right permissions. Is there some other Fedora equivalent to .xprofile?
View 5 Replies View RelatedMy hardware is the FriendlyArm mini2440 Samsung board. I run our main application from init.d/rcS. It uses printf's to display continuous program debug information that can be seen on the serial ttySAC2 console. I would like to be able to remotely view this information by a telnet connection when needed. What is the best way to accomplish this? The telnet user can possibly activate some script or program. I saw there is a ttysnoop program that I could not get to compile.
There must be a simpler way. There must be several ways. Instead of using printf I could do something else. I do not want to use a normal log file to the flash file system. I had thought of using a ram file in /var directory but it would complicate matters as I would need to limit its size and the telnet user needs to view the program's printfs in a real time fashion.
I'm trying to use expect to get data from telnet
Here's my code :
Code:
set equipment [lindex $argv 0]
set trunk [lindex $argv 1]
set fraction [lindex $argv 2]
[Code]....
so in bold letter not send in 1 line, but i want sent it to 1 line
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 Relatedhow i will write my own telnet server instead of existing one.please give me the path for telnet.c file in the linux kernel
View 9 Replies View RelatedI have a Thomson TG784 router, where I would like to log in automatically and execute dhcp server lease flush command.
When I log in using telnet, the process is following:
Code:
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.
I want to create script wherein it will check the application if its running. The command that I'll be using to check the application is telnet (if you can recommend others, that's ok). I've an application and it is listening to port 1808. If I do telnet localhost 1808, the response is :
Code:
[root@test ~]# telnet localhost 1808
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
What I want to happen is if the response is like to code above, it will execute a commands. Obviously, above code knows that the application is not working so I need to execute a commands. I created a script before using expect but I don't think it will work because I haven't establish a shell yet unlike successful telnet I could spawn expect.
When I logout Gnome session, the whole system reboots. I found this command, "gnome-session-save --kill", it restarts the system, too.That's what is happening with two of my Dell destops(CentOS 5.6). How could this happen?
View 4 Replies View RelatedI try to learn using session. I created sess1.php with the following code:
<?php
session_start();
// makes an array
[code]...
Im a fresher in PHP.Actually i wanted to know that whether there will be time delay while using session variables in PHP.By using some 10-20 session variables in my code will it affect the speed of the loading of the page.If so then can u suuggest any other method to pass the varaibles which will not slow down the speed?
View 4 Replies View RelatedI need a way to have screen (or dbus, whatever) to spit out a list of windows (title and number) that are active in a screen session.I'm writing a wrapper for common work tasks. Part of the functionality will check if a certain window exists, and if so let me know. The idea here is to prevent accessing the same machine twice. (although, and override option would probably be needed, just in case, but I digress...) I've searched through the screen man page and don't see anything that'll work. I'm not beyond forking screen and ending up with a custom version. However, I'd like to avoid that if I can.
Edit: I'd like to see something like "screen -S screen_name -window-list" or similar.
Page.php -- has a special division thats empty and on Link Click calls Javascript to change inner.html to an IFRAME call So the user clicks the link and then it shows the division and loads the IFRAME The IFRAME Source is iframe.php in IFRAME.PHP I need to take the Session Variables that were set already in Page.php all sessions work fine when not using Iframe (open iframe.php in its own window) but doesnt work when its Iframed and sadly I have to use Iframe on this page NOW the CATCH is -- I CANNOT use any POST or GET Values the iframe src MUST be straight url to the page [URL] cannot use variables in the url [URL] etc..
IS it possible to do what I need Without passing variables via the url? Page1 has all session variables set, calls the iframe command when users presses a button, Iframe loads but DOES not have the Session data that was saved on Page1 -- and IFRAME cannot pass variables via the URL it must be a direct url to the page only Page1.php java used to set the HTML / IFRAME into its Div
Code:
<script>
function changeText(){
document.getElementById('iframediv').innerHTML = "<iframe scrolling='no' frameborder='0' margin='0' src='http://mypage.blah/iframe.php'></iframe>";
[code]....
Is any way to detect a keypress event in a console session? Preferebly without needing the application to be running in the foreground
View 2 Replies View RelatedI'm trying to make an SSH script for my place of employment. This script, I want to go out to the server hostnames we have specified (in another file) and change a users account password. We use Kerberized telnet, so if telnet root hostname fails, I want it to use ssh username hostname and use the old password (specified). If both fail, I want it to ask the user what the port should be and input the port in the ssh command.
But I'm having a issue having it try telnet root hostname and if it fails then, try to ssh in, I have no clue how to have it proceed. Is it an if statement? Here's the telnet failed message: telnet: Unable to connect to remote host: Connection refused
In gui validation if user enters string in integer requiring field, a dialog box pops out. So on clicking the button i want to stop the program execution and return to the previous jframe(either the same one or newly created object of it).
How can i handle this in java.
I tried calling main(); but it doesn't work.
Also System.exit(0); doensn't work.
Want to return current LINES=, tryng to avoid the "hacky" backticks and string manipulation way
ie: my $somevar = `set | grep LINES`
I tried using the env command and it returns a empty value?
my $lines = $ENV{'LINES'};
$= doesnt work well for putty sessions...
my $lines = $=;
