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6.8

Open a telnet session from linux to Unix with apache/php

Asked by shakoush2001 in Linux, Linux Programming, Unix Operating Systems

hi all
I am using expect to open a telnet connection to UNIX and execute some commands, I wrote a expect script and I am executing it using shell_exec in php it works from command line but when executed on the apache server from the browser it only echos my commands and I checked the telnet server the cilent is not logging in..any ideas ?
The apache server is running on RHEL

The expect script is

#!/usr/bin/expect --
# Test expect script to telnet.

spawn telnet **.***.**.**
expect "login:"
send "usert\r"
expect "Password:"
send "asdfasd\r"
expect "mrt>"
#send "bash; date ; echo hello, drl.\r"
send "bash;echo drl.\r"
expect "bash-3.00#"
send "date ; echo hello, drl.\r"
expect "bash-3.00#"
send "exit\r"
# end of expect script.


The php script is

<?php

$r = shell_exec("/usr/bin/expect /usr/local/apache2/htdocs/admin/cut.sh");
echo $r;
?>

SELINUX is disabled and shell_exec("ifconfig") works fined and the output from the browser is

spawn telnet XX.XX.XX.XX Trying XX.XX.XX.XX... Connected to XX.XX.XX.XX (XX.XX.XX.XX). Escape character is '^]'. user password bash;echo drl. date ; echo hello,
I.e. it is only echoing the commands

I even tried suid and safe mode is off

Any ideas what could have gone wrong ?
 
 
[+][-]01/21/08 08:22 AM, ID: 20707146Expert Comment

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[+][-]01/22/08 04:05 AM, ID: 20713463Accepted Solution

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About this solution

Zones: Linux, Linux Programming, Unix Operating Systems
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Solution Provided By: Tomun
Participating Experts: 1
Solution Grade: A
 
 
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