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38
votes
5answers
8k views

Timing out in a shell script

I have a shell script that's reading from standard input. In rare circumstances, there will be no one ready to provide input, and the script must time out. In case of timeout, the script must execute ...
36
votes
3answers
54k views

Does curl have a timeout?

So far I couldn't find anything really, but is it true that curl doesn't really time out at all? user@host:~# curl http://localhost/testdir/image.jpg I'm asking because I'm redirecting any request ...
20
votes
5answers
34k views

How to introduce timeout for shell scripting?

I want to run a shell script that got a loop in it and it can go for ever which I do not want to happen. So I need to introduce a timeout for the whole script. How can I introduce a timeout for the ...
20
votes
1answer
4k views

Run a command for a specified time and then abort if time exceeds

I want know how I can run a command for a specified time say, one minute and if it doesn't complete execution then I should be able to stop it.
9
votes
1answer
135 views

Why does oot say “hey” in usleep -o?

On a Centos 6.6 box I noticed this... [root@abcd /]# usleep --help Usage: usleep [microseconds] -v, --version Display the version of this program, and exit -o, --oot oot says hey! ...
8
votes
2answers
11k views

How to make a TCP socket time out

For network catastrophe simulations of our server environment, we are looking for a way to intentionally timeout a TCP socket. Are there any simple ways for existing sockets? Also, little C test-case ...
8
votes
3answers
12k views

mptscsih: ioc0: task abort: SUCCESS (rv=2002) causes 30 seconds freezing

I/O to my software RAID6 often freezes for around 30 seconds after which everything is back to normal. After the freeze is over this is put into syslog: Mar 14 18:43:57 server kernel: [35649.816060] ...
7
votes
4answers
3k views

How to constraint time a program runs in Linux?

I have several simulations to do, each is invoked with python simulate.py <parameter list>. The problem with these simulations is that some of them hang without quiting, which prevents me from ...
7
votes
2answers
363 views

Kill a process if it goes quiet for a certain amount of time

I have a utility that has a nasty habit of going quiet and staying there, I already know how long into the process it does this so I am using timeout to fight this, but sometimes it does it before ...
7
votes
1answer
4k views

How long is a TCP local socket address that has been bound unavailable after closing?

On Linux (my live servers are on RHEL 5.5 - the LXR links below are to the kernel version in that), man 7 ip says: A TCP local socket address that has been bound is unavailable for some time after ...
7
votes
1answer
6k views

named does't start when using systemctl

I am having trouble getting named to start using systemd on the Fedora 18 Raspberry Pi spin. It starts, then a few moments later there is a timeout and it fails. If I run the commands in named.service ...
6
votes
1answer
172 views

How to make gksudo or gksu sessions last longer in Linux

Every time I want to open a GUI program that needs root permissions, I have to put my password. For example, I open synaptic and put my password then close it and a second later decide to reopen it it ...
6
votes
1answer
1k views

How to mount a Truecrypt container with a timeout from the command line?

I'm mounting a truecrypt container via the command line (i.e. truecrypt file dir). Is there any way to have truecrypt automatically unmount the container after a given amount of inactivity in dir?
5
votes
1answer
1k views

How to change timeout in systemctl

When I boot on my debian, startup hangs for approx 2 minutes on the line: Loading, please wait... [ 5.191043] systemd-fsck[129]: /dev/mmcblk0p2: clean, 234192/873120 files, 2335263/3491328 blocks ...
5
votes
1answer
755 views

Too big delay with xscreensaver on wrong password in OpenSUSE 12.2

There is too big delay when logging in with xscreensaver in OpenSUSE 12.2 --- Actual delay is 10 seconds, but not found anywhere in configs Already done: checked pam timeout in login.defs (3 ...
4
votes
3answers
138 views

How to send SIGKILLs to entire pipeline?

while true; do # process substitution instead of usual pipeline to avoid waiting for all programs handle_input_with_timeout < <( prog1 | prog2 | prog3 ) echo "Data stopped flowing. ...
4
votes
3answers
423 views

Kill process when it stops to produce further output

Is there a shell tool which can probe if a subprocess is still producing output, and otherwise kill it after a specified timeout? I'm using offlineimap for Gmail backup, but that's very very very ...
4
votes
2answers
449 views

IPv6 connections timeout

I'm having issues with IPv6 connections. Only with those. They timeout roughly every 10 minutes (due to address renewal i suppose). Happens with every debian based flavour of linux i tried in a year ...
3
votes
2answers
56 views

read only TMOUT variable – workaround to disable automatically exit shell when there is no activity

We have here a read only Bash variable. I am not allowed to unset that variable. $ echo $TMOUT 1800 As a workaround I wrote those lines (that my session don't exit) #!/usr/bin/perl $|++; while ...
3
votes
1answer
7k views

How do I remove the timeout in the boot menu

I am a beginner to Linux so I installed several operating systems on my computer in a multiboot configuration (Ubuntu, Linux Mint, Windows, ...). When I turn on my PC, the boot menu appears with a ...
3
votes
1answer
8k views

SSH connection timed out. it's not client or server…what now?

I have been using a Linux server via SSH for months, it still works from other locations but for some reason, this week, it isn't working from the office. Putty says "Connection timed out" Is there ...
3
votes
3answers
795 views

timeout without killing process in bash

I have a main script that I'm running, and from it I have a second "slow process" I want to kick off, and "do something" in the main script if it doesn't complete in the time limit -- depending on if ...
3
votes
2answers
3k views

From shell, killing a process if wallclock runtime exceeds some predetermined value

I want to start a process from a shell script, allow it to interact with the user (so I cannot just background it, grab the PID, launch sleep followed by sanity checks and kill), but if it is still ...
3
votes
2answers
370 views

why slight delay after failed login in tty [duplicate]

Possible Duplicate: Why a wrong password gives a big delay Whenever I mistype my password when logging in in a tty, I have noticed that I have to wait for a second before I'm able to log in ...
3
votes
1answer
431 views

How to disable timeout of password prompt for partition decryption during boot?

I have a computer running OpenSUSE 12.1, 64-bit, default install. How it works currently: I turn on the computer It goes through the boot process At some point during boot, I am asked for password ...
3
votes
4answers
10k views

TFTP configuration problems

I can not get TFTP to work properly on my system. I have set /etc/default/tftpd-hpa to /srv/tftp/ which I have set to permissions 777 like all the contents as well (and /srv/ too) however, whenever I ...
3
votes
3answers
4k views

MySQL Linux Client Timeout/Keepalive

Is there a way to set a keepalive in the command-line MySQL client on Linux? Our network recently moved to a VLAN setup, and our systems department no longer has control of the firewall. The ...
3
votes
2answers
1k views

change tty login timeout - ArchLinux

By default when I login to my Arch linux box in a tty, there is a timeout after I type my username but before I type my password. So it goes like this Login: mylogin <enter> Password: (+ 60 ...
3
votes
1answer
2k views

How to kill a command started over SSH - the SSH connection lost

If I use timeout 10 ssh -n -o BatchMode=yes 1.1.1.1 'sleep 20' > 1.1.1.1.txt 2>&1 & To give out a remote command on a server, and I kill the SSH connection after 10 seconds, then I ...
3
votes
1answer
479 views

Use time ,timeout and ulimit commands properly

I'm running a command in CentOS and at the same time I want to do 2 things: write the run time of the command to a file and set a time limit which stops the command I implemented the first one ...
3
votes
1answer
1k views

Can the hard drive timeout be disabled in Linux (attempting task abort)

Unfortunately, when a hard drive (usually a virtual drive) is slow, Linux aborts requests to that drive after a timeout, possibly causing data corruption. Last time this happened to me, I had 2 vms ...
3
votes
1answer
119 views

Why are these connections not classified as “established” under conntrack?

I have the following rule for iptables: -A OUTPUT -m conntrack --ctstate ESTABLISHED -j ACCEPT such that outgoing connections not classified as established will be logged. Occasionally, the ...
3
votes
0answers
206 views

Why sudo won't remember my password?

I use sudo in many systems, but I have one of them that makes me type my password each time I run sudo. All the others remember it for a while. This is debian 7.4 wheezy and sudo 1.8.5 I found this : ...
3
votes
1answer
2k views

Apache 70007 and 70014 errors [closed]

I have a service where mobile phones send a big hash of data to our server which are sitting on AWS behind the ELB. Once in a while we receive 70007 and 70014 errors in the apache error logs, the ...
2
votes
2answers
6k views

What is the difference between ping -w and ping -W?

What is the -w (deadline) flag in ping for? I cannot find a description of it in the ping man page; only for -W, which takes seconds as a parameter. What is the difference between them, and how can I ...
2
votes
2answers
985 views

Timeout doesn't occur when reading from fifo using `read`

Look at this code: while read -t 3 line; do echo ${line} done < /opt/data.log data.log is a fifo. One process is writing to this, and this code should be reading it to show to the user. But ...
2
votes
1answer
73 views

How to avoid system timeout to login screen when I make a cup of tea?

Linux Mint 17.1 (MATE) running on HP G250 Laptop and older HP desktops. It's just me and the dog at home and I like to run the computer all day, but it keeps returning to the login screen after a few ...
2
votes
4answers
397 views

Set timeout for web page response with curl

I use a tool to monitor if the web-page is up and running. The tool uses curl command internally to fetch the output. However, when a web-page takes longer time to respond, it results back with a ...
2
votes
3answers
1k views

Timeout `idql` command in ksh

I probably read all the threads in almost all the forums for a solution to my need. I am a beginner in shell scripting and I dont have a perfect solution yet. Below is my code snippet. idql -n ...
2
votes
1answer
50 views

Huge delay in script response when using SFTP with expect

I am using a script to call SFTP service to fetch some logs from the remote server. This works fine in normal scenario but, i have noticed a very long delay of around 30 minutes or more in some of the ...
2
votes
1answer
141 views

How to specify ConnectTimeout for dropbear?

I'm trying to use the Dropbear SSH and in the previous version of SSH I used, you could add the argument -o ConnectTimeout=10 to cause an attempted connection to timeout if unsuccessful after ten ...
2
votes
2answers
799 views

Keeping xterm terminal alive on crunchbang linux debian wheezy

I like to keep a number of terminals open at different locations on my development VM. For this I use terminator because I got a big screen and I can divide the terminals anyway I want. But after ...
2
votes
2answers
284 views

How to set Timeout for an ssh command and also get back the result of remote commands

I have a script that runs on bash, in an RHEL server that connects to thousands of nodes and returns with the values of some 5 executed commands - It collects info from RHEL Servers only. It works ...
2
votes
0answers
205 views

Increase SSH ConnectTimeout greater than 60 seconds

I don't seem to be able to increase the SSH connection timeout much beyond a minute: $ date; ssh home-qnap -o ConnectTimeout=7200; date Wed 14 Jan 2015 15:23:32 AEDT ssh: connect to host home-qnap ...
2
votes
0answers
59 views

Last data traffic time for a TCP socket

Is it possible, to find out when was the last time there was any traffic on an opened TCP socket? Keepalive and timeout timers are based on this statistic, so I guess it has to be stored somewhere. ...
2
votes
0answers
212 views

CentOS 5.5 server dropping & blocking connection

I'm running a CentOS release 5.5 (Final) server running the LAMP stack amongst other things. When working on a web project with numerous active connections to the server box (Plesk over HTTP, SSH and ...
2
votes
1answer
1k views

How can I configure OpenVPN to wait for slow SOCKS proxies?

I'm experimenting with OpenVPN connections routed through Tor, using pairs of Tor gateway and OpenVPN-hosting VMs. On the server side, link local ports are forwarded to Tor hidden-service ports on the ...
2
votes
0answers
287 views

IPTables dropping UDP packet stream

I have a configuration where UDP packets containing encapsulated DNS data are sent to a KVM instance for processing. The KVM instance sits behind an IPtables firewall which is also doing NAT. The ...
2
votes
1answer
188 views

mpd daemon prematurely ending jobs

I am a little out of my depth here so bear with me. I am trying to configure mpirun and mpiexec to run software called Materials Studio on a 1 node, 2 processor, 12 core cluster. The submission scheme ...
2
votes
0answers
173 views

Shorter timeout on I/O errors MacOS X

How do you set a shorter timeout value for read/write I/O errors on MacOSX? We tend to get a few semicrashed disks and want to rsync the contents to a secure location, but when the file subsystem ...