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  • How to close all background processes in unix?

    - by Gabi Purcaru
    I have something like: cd project && python manage.py runserver & cd utilities && ./coffee_auto_compiler.py And I want both of them to close on Ctrl-C (or some other command). How can I accomplish that? EDIT: I tried using jobs -x kill and kill `jobs -p `, but it doesn't seem to kill what I need. Here is what I mean: moon 8119 0.0 0.0 7556 3008 pts/0 S 13:17 0:00 /bin/bash moon 8120 6.8 0.4 24568 18928 pts/0 S 13:17 0:00 python manage.py runserver jobs -p give me just process 8119, but I also need to close 8120, since it's the thing that the first command opened. If it helps, the commands are actually in a Makefile, and I want it to run two daemons at the same time (and somehow close them at the same time). And yes, I'm using ubuntu, with bash

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  • Sftp via shell - how is it possible?

    - by Tomasz Zielinski
    (Moved from StackOverflow: http://stackoverflow.com/questions/4589725/sftp-via-shell-how-it-is-possible) How is it possible for tools like http://mysecureshell.sourceforge.net/ to provide SFTP access by merely specifying them as shell by typing: usermod -s /bin/MySecureShell myuser ? I'm on Debian Lenny, with default sshd/OpenSSH. Is this e.g. a feature of SSH protocol that allows user shell to handle sftp commands? I can't wrap my head around this because usually OpenSSH needs sftp-server module (or the internal one in newer versions) - and this makes me think that sftp commands don't even hit the shell and are handled earlier or by different code path..

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  • Disabling networkmanager for a specific interface

    - by bdonlan
    I'd like to do some experimentation with hostap without disabling my primary wireless interface. How do I tell networkmanager to keep its hands off a specific interface or interfaces while allowing it to continue managing all other interfaces normally? I'm using Ubuntu 9.04. (Wasn't sure if this should go on superuser or serverfault, as networkmanager isn't much of a 'server' tool - if it belongs on serverfault please feel free to move it) Edit: I've tried adding this to /etc/network/interfaces: allow-hotplug wlan2 iface wlan2 inet static address 192.168.49.1 netmask 255.255.255.0 But this has no apparent effect, even after restarting NetworkManager. Here's my /etc/NetworkManager/nm-system-settings.conf: [main] plugins=ifupdown,keyfile [ifupdown] managed=false Edit[2]: Looks like I needed to restart nm-system-settings, then NetworkManager.

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  • permission denied when trying to execute a binary I burned to a CD-R

    - by user16654
    On a UBUNTU karmic machine, I burned a cd from the command prompt using: cdrecord -v speed=16 dev=0,1,0 /FPS.iso The CD now contains an executable and some files. I tested the cd by loading it onto another machine (Red Hat 5.3) and when I try to run the program I get the following message: bash: ./FPS1_1: Permission denied I can open other files like text documents (the executable also comes with shared libraries). I realized I had burned the cd as root so I burned another one as another user but I still got the same problem. How can I remove this permission or what is the problem? P.S. the image was in / if that helps

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  • p2v v2v v2p tool from open source?

    - by neolix
    we have centos, fedora, ubuntu server and desktop we are looking for good open source tool for p2v v2v v2p and we are not using vmware here only we use xen or kvm. Same of the server shifted to new hardware and same of the server on xen or kvm. Can same help me !!

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  • Looking for a host based network monitor solution

    - by Ole Martin Handeland
    Hi all! Problem So, my hosting company has a network usage graph for my dedicated server. It seems that one day earlier this month, my network usage suddenly spiked with several hundred megabytes transferred (usually it's in the tens, not hundreds). It was probably me, but i just can't be sure who or what it was. Question So my question is; does anyone know of any host based solution for monitoring network usage that would tell me the client's IP-address, the port/service he/she used? What I don't want I'm just guessing that someone will suggest i use nagios, munin, zabbix, cacti, mrtg - I've also looked at those, but a graph over network usage will not give me the answers I'm looking for. :-) Almost there I've already looked at a lot of monitoring solutions, and I've tried [ntop][http://www.ntop.org/], [darkstat][http://unix4lyfe.org/darkstat/] and others. Darkstat just didn't give me the answers. Although it listed a lot of statistics, and i could list the clients - it doesn't show me the network usage for a particular period. Ntop is by far the best I've seen so far - but i think it mostly shows current network usage, not the historical part. I could run apt-get upgrade and download a whole bunch of software, but not see it in the log afterwards.

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  • Use router as external high powered Wi-Fi adapter

    - by skywinder
    I need a powerful external Wi-Fi adapter for a couple of days. I heard that some types of router support this mode, allowing me to connect the router to my notebook and just use it as an external Wi-Fi interface. Is it possible to connect a router as an external Wi-Fi adapter? How can I determine it? Updated: My purpose is to set the router to monitor mode and check networks around through my notebook to provide better configuration for my network (power, channels, etc). My internal notebook Wi-Fi adapter is too weak for this purpose. Should I use special drivers for that? If yes, can someone describe, step-by-step, how to do it? p.s. I want to use ASUS RT-N56U as an external Wi-Fi adapter on OS X or Ubuntu.

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  • Wpa supplicant suddenly stopped working

    - by Grzenio
    Hi, Recently my wireless stopped working on my Debian testing system. It just doesn't connect. The best I get (only after a reboot) is that it says it did connect, but failed to get IP address. But usually it just tries to connect, disconnects straight away, connects again etc. so it never manages to associate correctly. I am sure it did work about a month ago, stopped working after recent upgrades from the repository. Any ideas how to find the issue and fix it?

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  • How to get an inactive RAID device working again?

    - by Jonik
    After booting, my RAID1 device (/dev/md_d0 *) sometimes goes in some funny state and I cannot mount it. * Originally I created /dev/md0 but it has somehow changed itself into /dev/md_d0. # mount /opt mount: wrong fs type, bad option, bad superblock on /dev/md_d0, missing codepage or helper program, or other error (could this be the IDE device where you in fact use ide-scsi so that sr0 or sda or so is needed?) In some cases useful info is found in syslog - try dmesg | tail or so The RAID device appears to be inactive somehow: # cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md_d0 : inactive sda4[0](S) 241095104 blocks # mdadm --detail /dev/md_d0 mdadm: md device /dev/md_d0 does not appear to be active. Question is, how to make active the device again (using mdmadm, I presume)? (Other times it's alright (active) after boot, and I can mount it manually without problems. But it still won't mount automatically even though I have it in /etc/fstab: /dev/md_d0 /opt ext4 defaults 0 0 So a bonus question: what should I do to make the RAID device automatically mount at /opt at boot time?) This is an Ubuntu 9.10 workstation. Background info about my RAID setup in this question.

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  • Perform action based on load avg

    - by sfx
    I'm running some web applications on an debian server and have to struggle with ddos attacks sometimes. It's eating up all my resources and I can't ssh anymore into the server. An idea was to drop all connections if the load avg is too high, so there are still resources for me and accept new connections if the load avg is low enough. Since this has to work under heavy load I'm afraid a cronjob wouldn't be fast enough or take too much resources. tl;dr: Is there a way to configure the behavior if the load avg is above a specific threshold?

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  • How to free up block device that is mounted to an inaccessible place?

    - by Vi
    root@vi-notebook:~# cat /proc/mounts | grep raidy /dev/md0 /root/e/i/wpc2/boot/mnt/raidy reiserfs ro,nosuid,nodev,noexec,noatime 0 0 root@vi-notebook:~# umount -n /root/e/i/wpc2/boot/mnt/raidy umount: /root/e/i/wpc2/boot/mnt/raidy: Transport endpoint is not connected root@vi-notebook:~# mount /dev/md/raidy /mnt/raidy/ -t reiserfs -o nodev,nosuid,noexec,acl,noatime mount: /dev/md0 already mounted or /mnt/raidy/ busy The only workaround I found is: root@vi-notebook:~# losetup /dev/loop0 /dev/md/raidy root@vi-notebook:~# mount /dev/loop0 /mnt/raidy/ -t reiserfs -o nodev,nosuid,noexec,acl,noatime

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  • Better logging for cronjob output using /usr/bin/logger

    - by Stefan Lasiewski
    I am looking for a better way to log cronjobs. Most cronjobs tend to spam email or the console, get ignored, or create yet another logfile. In this case, I have a Nagios NSCA script which sends data to a central Nagios sever. This send_nsca script also prints a single status line to STDOUT, indicating success or failure. 0 * * * * root /usr/local/nagios/sbin/nsca_check_disk This emails the following message to root@localhost, which is then forwarded to my team of sysadmins. Spam. forwarded nsca_check_disk: 1 data packet(s) sent to host successfully. I'm looking for a log method which: Doesn't spam the messages to email or the console Don't create yet another krufty logfile which requires cleanup months or years later. Capture the log information somewhere, so it can be viewed later if desired. Works on most unixes Fits into an existing log infrastructure. Uses common syslog conventions like 'facility' Some of these are third party scripts, and don't always do logging internally. UPDATE 2010-04-30 In the process of writing this question, I think I have answered myself. So I'll answer myself "Jeopardy-style". Is there any problem with this method? The following will send any Cron output to /usr/bin//logger, which will send to syslog, with a 'tag' of 'nsca_check_disk'. Syslog handles it from there. My systems (CentOS and FreeBSD) already handle log rotation. */5 * * * * root /usr/local/nagios/sbin/nsca_check_disk 2>&1 |/usr/bin/logger -t nsca_check_disk /var/log/messages now has one additional message which says this: Apr 29, 17:40:00 192.168.6.19 nsca_check_disk: 1 data packet(s) sent to host successfully. I like /usr/bin/logger , because it works well with an existing syslog configuration and infrastructure, and is included with most Unix distros. Most *nix distributions already do logrotation, and do it well.

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  • Enrich a dataset of POIs with OpenStreetMap

    - by zero
    update: due to some hints of users - eg oliver Salzburg and slhck i have been aware of gis.stackexchange.com - so i moved the topic on my own: Plz can you or somebody who has the permission close the article - since we do not need this topic on two sites. Thx for your work. KEEP up the service here! STACK-sites rock. I have a list of POIs, some with a full description and some with only a few data entries, like the following: 6.9441000 50.9242000 [50677] (Ital) Casa di Biase [Köln] 6.9373600 50.9291800 [50674] (Ital) Al Setaccio [Köln] However, I need the full dataset. Can I get this somewhere? If I have all the position data, is it possible to find the rest? a. name of the street b. name of the town So for example, the data should finally look like this: 10.5346100 52.1613600 [38300] (Chin) Wanbao Kommissstr.9 [Wolfenbüttel] 13.2832500 52.4422600 [14167] (Ital) LaPergola Unter den Eichen 84d [Berlin] 13.3177700 52.5062900 [10625] (Chin) Good Friends Kantstr.30 [Berlin] Can I do this with OpenStreetMap? Should I parse OpenStreetMap data? Or OpenBabel?

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  • Kernel Memory Leak in Ubuntu 9.10?

    - by kayahr
    After some days of work (Using suspend-to-ram during the night) I notice I loose more and more available memory. Even when I close all applications the situation doesn't improve. I even went down to the command line and closed ALL running processes except the init process and the bash I'm working in. I unmounted all these ram disks which Ubuntu is using, I even unloaded all modules which could be unloaded. But still "free" tells me that 1 GB of RAM is used (without buffers/cache). In "top" there is no visible process which occupies all this memory. The only way to free the memory is restarting the machine. How can I find out where I lose all this memory? Is there a known "suspect" who can cause a problem like this? I'm using Ubuntu 9.10 64 bit on a Dell Latitude E6500 (4 GB RAM) with the latest closed-source nvidia driver and Gnome with Compiz. The applications I use most of the time are firefox and eclipse. Any hints how I can find the problem? I'm not a kernel hacker so if the solution is patching the kernel or something like that then I might be out of the game...

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  • OpenVPN Keeps Crashing

    - by Frank Thornton
    Oct 20 21:00:44 sb1 openvpn[2082]: <MY_IP>:28523 [vpntest] Peer Connection Initiated with [AF_INET]<MY_IP>:28523 Oct 20 21:00:44 sb1 openvpn[2082]: vpntest/<MY_IP>:28523 MULTI_sva: pool returned IPv4=10.8.0.6, IPv6=(Not enabled) Oct 20 21:00:44 sb1 openvpn[2082]: <MY_IP>:28522 WARNING: 'link-mtu' is used inconsistently, local='link-mtu 1576', remote='link-mtu 1376' Oct 20 21:00:44 sb1 openvpn[2082]: <MY_IP>:28522 WARNING: 'tun-mtu' is used inconsistently, local='tun-mtu 1532', remote='tun-mtu 1332' Oct 20 21:00:45 sb1 openvpn[2082]: <MY_IP>:28522 [vpntest2] Peer Connection Initiated with [AF_INET]<MY_IP>:28522 Oct 20 21:00:45 sb1 openvpn[2082]: vpntest2/<MY_IP>:28522 MULTI_sva: pool returned IPv4=10.8.0.10, IPv6=(Not enabled) Oct 20 21:00:46 sb1 openvpn[2082]: vpntest/<MY_IP>:28523 send_push_reply(): safe_cap=940 Client File: client dev tun proto tcp remote <IP> 443 resolv-retry infinite nobind tun-mtu 1500 tun-mtu-extra 32 mssfix 1410 persist-key persist-tun auth-user-pass comp-lzo SERVER: port 443 #- port proto tcp #- protocol dev tun tun-mtu 1500 tun-mtu-extra 32 reneg-sec 0 #mtu-disc yes mssfix 1410 ca /etc/openvpn/easy-rsa/2.0/keys/ca.crt cert /etc/openvpn/easy-rsa/2.0/keys/server.crt key /etc/openvpn/easy-rsa/2.0/keys/server.key dh /etc/openvpn/easy-rsa/2.0/keys/dh1024.pem plugin /etc/openvpn/openvpn-auth-pam.so /etc/pam.d/login #plugin /usr/share/openvpn/plugin/lib/openvpn-auth-pam.so /etc/pam.d/login #- Comment this line if you are using FreeRADIUS #plugin /etc/openvpn/radiusplugin.so /etc/openvpn/radiusplugin.cnf #- Uncomment this line if you are using FreeRADIUS client-to-client client-cert-not-required username-as-common-name server 10.8.0.0 255.255.255.0 push "redirect-gateway def1" push "dhcp-option DNS 8.8.8.8" push "dhcp-option DNS 8.8.4.4" keepalive 3 30 comp-lzo persist-key persist-tun What is causing the VPN to keep dropping the connection and then reconnecting?

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  • How to configure autofs5 timeout on per-filesystem basis?

    - by Norman Ramsey
    Because of a show-stopping bug in Debian autofs 4, I just upgraded to autofs5. It is not honoring the timeout option in my auto.master file: /var/autofs/removable /etc/auto.removable --timeout=2 I use this map for thumb drives and so on; I don't want a general default timeout of 2 seconds. I did some digging and although the --timeout option worked in autofs 4, and it appears in some examples on the Web, it is not actually sanctioned (or even mentioned) in the documentation for the auto.master file. So I don't feel I can report the problem as a bug. How can I get autofs5 to timeout after 2 seconds only on designated filesystems? Update: I am using a Debian-packaged autofs5, version 5.0.4-3.2.

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  • Extract specific files in a tar archive using a wildcard

    - by AdrieanKhisbe
    I'm tring for a script to extract only jpeg pictures from an archive containing maky kind of files. To do so I tried first to use: tar -xf MyTar.tar *.jpg but it failed (*.jpg not found) and suggest me to use "--wildcard". So I tried tar -xf MyTar.tar --wildcard *.jpg I did that, but then the same error and a different warning saying yo me that the option "--wildcard" is ambigious. I've been over the manuel pages for tar, but didn't find a clue about the problem thanks

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  • drivers/rtc/hctosys.c: unable to open rtc device (rtc0) after recompile on boot

    - by squareone
    After recompiling a new kernel on CentOS 6.3, using the same kernel I have been using on several other machines, I am getting a kernel panic on two machines. I get the following when trying to boot: drivers/rtc/hctosys.c: unable to open rtc device (rtc0) (flashes this before displaying the panic below) not syncing: Attempted to kill init! exitcode=0x00000100 Pid: 1, comm: init Not tainted etc... I have been trying to figure out what is going on, and am having trouble doing so, and feel I have exhausted all of my options here. Any help would be appreciated. My grub.conf: default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title CentOS (3.4.18-rt29) root (hd0,0) kernel /vmlinuz-3.4.18-rt29 ro root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet panic=5 initrd /initramfs-3.4.18-rt29.img title CentOS (2.6.32-279.14.1.el6.x86_64) root (hd0,0) kernel /vmlinuz-2.6.32-279.14.1.el6.x86_64 ro root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet panic=5 initrd /initramfs-2.6.32-279.14.1.el6.x86_64.img Any help or guidance would be greatly appreciated.

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  • Transmission-daemon not picking up on watch directory

    - by Mild Fuzz
    Trying to get my transmission-daemon to pick up files from a dropbox folder, to make remote starting easier (it's a headless system). As far as I can tell, the settings.json file is as expected, but none of the files I place in the folder get picked up. I have checked that dropbox is syncing correctly. Here is the whole settings.json file, but the relevant lines are included below: "watch-dir": "/home/john/Dropbox/torrents", "watch-dir-enabled": true Update It appears to be a permissions issue. From /var/log/syslog: Unable to watch "/home/john/Dropbox/torrents": Permission denied (watch.c:79) I have tried stopping the daemon - sudo service transmission-daemon stop - changing permissions of folder using chown - sudo chown -R john /home/john/Dropbox/torrents - restarting daemon - sudo service transmission-daemon start Same result, however Update 2 Permissions for the folder are: drwsrwsrwx 2 john debian-transmission 4096 2012-04-09 19:40

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  • Escaping query strings with wget --mirror

    - by Jeremy Banks
    I'm using wget --mirror --html-extension --convert-links to mirror a site, but I end up with lots of filenames in the format post.php?id=#.html. When I try to view these in a browser it fails, because the browser ignores the query string when loading the file. Is there any way to replace the ? character in the filenames with something else? The answer of --restrict-file-names=windows worked correctly. In conjunction with the flags --convert-links and --adjust-extension/-E (formerly named --html-extension, which also works but is deprecated) it produces a mirror that behaves as expected. wget --mirror --adjust-extension --convert-links --restrict-file-names=windows http://www.example

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  • not able to register sip user on red5server, using red5phone

    - by sunil221
    I start the red5, and then i start red5phone i try to register sip user , details i provide are username = 999999 password = **** ip = asteriskserverip and i got --- Registering contact -- sip:[email protected]:5072 the right contact could be --- sip :99999@asteriskserverip this is the log: SipUserAgent - listen -> Init... Red5SIP register [SIPUser] register RegisterAgent: Registering contact <sip:[email protected]:5072> (it expires in 3600 secs) RegisterAgent: Registration failure: No response from server. [SIPUser] SIP Registration failure Timeout RegisterAgent: Failed Registration stop try. Red5SIP Client leaving app 1 Red5SIP Client closing client 35C1B495-E084-1651-0C40-559437CAC7E1 Release ports: sip port 5072 audio port 3002 Release port number:5072 Release port number:3002 [SIPUser] close1 [SIPUser] hangup [SIPUser] closeStreams RTMPUser stopStream [SIPUser] unregister RegisterAgent: Unregistering contact <sip:[email protected]:5072> SipUserAgent - hangup -> Init... SipUserAgent - closeMediaApplication -> Init... [SIPUser] provider.halt RegisterAgent: Registration failure: No response from server. [SIPUser] SIP Registration failure Timeout please let me know if i am doing anything wrong. regards Sunil

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