12-12-2008
LoginGraceTime
look at LoginGraceTime in sshd_config
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1. UNIX for Dummies Questions & Answers
if a user login and never shutdown or exit...how do you set an automatic shutdown or timeout if the user leave the session on for 20 minutes?
thanks (3 Replies)
Discussion started by: ichiro
3 Replies
2. Programming
The scenerio is:
1. A server listens on a port number
2. If the server is down and the Client tries to connect
3. How to set the timeout for the client
Detailed explaination:
In a client server architecture over a TCP/IP, normally the server is started first which waits and listens for the... (1 Reply)
Discussion started by: shilpi_gup
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3. Shell Programming and Scripting
When I run a script where the 1st parameter is ip address
ftp -n -i -v $1
I hang here if the ip is wrong
how to set a timeout something like
if (20s not complete "ftp -n -i -v $1") then
echo "error"
fi
Thanks a lot. (14 Replies)
Discussion started by: uativan
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4. UNIX for Dummies Questions & Answers
I've created a script that checks the health of a piece of equipment out in the field by first establishing that it is pingable, and then parsing
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Discussion started by: DeCoTwc
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5. Shell Programming and Scripting
SSHing into a machine can take a few seconds, but after I'm in, the commands return quickly. I was wondering if the timeout setting can be changed once I'm logged into the machine. Does anyone know if this can be set on the fly? The problem here is, if I have to set timeout = 10, it'll take 10... (1 Reply)
Discussion started by: mrwatkin
1 Replies
6. AIX
Friends,
Could anyone let me know - how to set the timeout value for ssh session to HMC? My HMC version is -- V7R7.4.0. I'm sure the version doesn't have anything to do with it.
Thanks,
-- Souvik (2 Replies)
Discussion started by: thisissouvik
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7. Red Hat
How is it possible to set the screensaver timeout on red hat.
For solaris I understand it is :
for file in /usr/dt/config/*/sys.resources; do
dir=`dirname $file | sed s/usr/etc/`
mkdir -p $dir
echo 'dtsession*saverTimeout: 10' >>$dir/sys.resources
echo 'dtsession*lockTimeout: 10'... (0 Replies)
Discussion started by: alvinoo
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8. Shell Programming and Scripting
I have a command to check the status of hostname and port number,
echo > /dev/tcp/hostname/80
echo $?
0
success case
echo > /dev/tcp/hostname/809999
I got the output
-------------------
connection timed out
It took almost 4 minutes to time out,,, how can I set it to 10 seconds?
my... (2 Replies)
Discussion started by: sam@sam
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9. Linux
Hello friends,
I work on Linux servers via SSH (putty) and run "screen" to preserve my sessions so I can attach/detach them at anytime I wish without losing the connectivity/process disruption which is working perfectly fine.
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Discussion started by: prvnrk
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10. AIX
I have to make a command to work when connecting to AIX 7.1 (used by an internal software).
I have a linux server L where the following command is runned ssh -t <aix-server-ip> ls
For a <non-aix-server-ip> the command runs successfully.
For AIX the terminal just gets blocked.
ssh connection... (5 Replies)
Discussion started by: ufo
5 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS
--debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)