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  • Disk Partitioning problem with fdisk.

    - by MA1
    Currently i am using fdisk to create/resize windows partitions. Following is a sample input script to fdisk to create/resize windows partitions: fdisk /dev/sda < partInput the contents of partInput are as follows: d #delete the partition 3 #partition number to be deleted n #add a new partition p #primary: type of new partition 3 #new partition number 18804 #start cylinder of new partition 77433 #end cylinder of new partition t #change the type of partition 3 #partition number whose type(filesystem) is to be changed 7 #HPFS/NTFS: partition type(filesystem) n #add a new partition p #primary: type of partition 77434 #first cylinder of new partition 77825 #end cylinder new partition w #write all the above changes As you see in the above input we are using cylinders for start and end. Earlier i am using sectors as unit and everything is working fine but getting problems when partitioning a 1.5TB hard drive. Then i changed the unit to cylinders but it is working on some machines not all. On some machines fdisk failed to create the partition table correctly. So, i am thinking to move to parted if there is no way to do the above using fdisk. Please also tell me how to correctly convert sectors to cylinders? How to perform all the above steps using parted without losing the data OR how to use fdisk correctly?

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  • How can I fix this configure error?

    - by balor123
    I'm trying to build mosh from source on a SUSE10 machine and am getting the following error: checking for protobuf... no configure: error: Package requirements (protobuf) were not met: No package 'protobuf' found Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables protobuf_CFLAGS and protobuf_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. I downloaded the source to protobuf and installed it in a custom path as well. I'm not using a package manager for any of this and cannot for various reasons outside the scope of the question. I added that custom path to my PATH and rehashed. Typically, this is enough for configure but in this case its not doing the trick. I added the prefix for protobuf to PKG_CONFIG_PATH but am still hitting this error. What should I do next to get past this error?

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  • Passing parameters to a shell script running as a cronjob

    - by Takashi
    I am new to bash scripting (not programming in general). I am writing a bash script that will run a Python script I have written. I want to be able to do the following: Pass parameters to the bash script via the cronjob (so I can have two cron jobs) one to be run with parameter 'foobar', and the other 'foo' switch based on the parameter passed to the bash script (by switching, I mean an if/else based on the paramter passed to the bash script).

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  • WEB based HPC cluster node management

    - by Skuja
    Hello, i am working on my school diploma thesis. The main goal is to create web based application where logged users could see free and busy nodes, turn them on and off, see what process they are running etc. Figured out that i could do something like this - write some cron daemon that would run every 30seconds or so, and it could run ping utility for each node to find out if it is on or off, then write results to some file. Then from my web app (i will write in PHP) i could read the info. Will it be a good solution? How would you suggest me to do it? And finally, is there any existing solutions (it may not be a definetly ewb based) for managment of cluster nodes?

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  • Setting background color in gvim

    - by petersohn
    I use a terminal with white text on black background (I just like it better), so I wrote the following line in my .vimrc file: set background=dark However, gvim has black on white text. How do I do either of the following: Set the background of gvim to black Check in .vimrc if I'm using gvim I tried this: I started up gvim, and typed echo &term. The answer was "builtin_gui". So I wrote the following into .vimrc: if &term == "builtin_gui" set background=light else set background=dark endif Somehow, it didn't work.

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  • Have an unprivileged non-account user ssh into another box?

    - by Daniel Quinn
    I know how to get a user to ssh into another box with a key: ssh -l targetuser -i path/to/key targethost But what about non-account users like apache? As this user doesn't have a home directory to which it can write a .ssh directory, the whole thing keeps failing with: $ sudo -u apache ssh -o StrictHostKeyChecking=no -l targetuser -i path/to/key targethost Could not create directory '/var/www/.ssh'. Warning: Permanently added '<hostname>' (RSA) to the list of known hosts. Permission denied (publickey). I've tried variations using -o UserKnownHostsFile=/dev/null and setting $HOME to /dev/null and none of these have done the trick. I understand that sudo could probably fix this for me, but I'm trying to avoid having to require a manual server config since this code will be deployed on a number of different environments. Any ideas? Here's a few examples of what I've tried that don't work: $ sudo -u apache export HOME=path/to/apache/writable/dir/ ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=path/to/apache/writable/dir/.ssh/known_hosts -l deploy -i path/to/key targethost $ sudo -u apache ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=path/to/apache/writable/dir/.ssh/known_hosts -l deploy -i path/to/key targethost $ sudo -u apache ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -l deploy -i path/to/key targethost Eventually, I'll be using this solution to run rsync as the apache user.

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  • GDM login screen is not displayed with VNC

    - by niboshi
    Hi, I set up VNC server with xinetd. Also configured GDM so that XDMCP is enabled. VNC connection seems okay, but GDM login screen is not shown. Instead I can only see old bare X screen (gray meshed background and X-shaped mouse pointer), which I can't do any interaction with it. What can I do to fix the problem? No log is written below /var/log/. Server distribution: Ubuntu marverick /etc/xinetd.d/vnc is like below: service vnc1024 { disable = no socket_type = stream protocol = tcp wait = no user = nobody server = /usr/bin/Xvnc server_args = -inetd -query localhost -geometry 1024x768 -depth 24 -once securitytypes=none port = 12345 } /etc/gdm/custom.conf: [daemon] [security] DisallowTCP=false [xdmcp] Enable=true [gui] [greeter] [chooser] [debug] [servers] /etc/services is also configured. Thanks

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  • Constantly diminishing free space on fedora 17

    - by Varun Madiath
    I don't know how to explain this other than to say that my computer seems to magically run out of free when it runs for a while. The output of df -h . oh my home direction is below /dev/mapper/vg_vmadiath--dev-lv_home 50G 47G 0 100% /home When I run sudo du -cks * | sort -rn | head -11 on /home I get the following output. I got this from decreasing free space on fedora 12 32744344 total 32744328 vmadiath 16 lost+found If I restart my system things seem to fix themselves and I'm left with about 20 or 25GB of free space. I'm running XFCE with XMonad as my window manager under fedora 17. Programs I'm running include the XFCE terminal, grep, find, firefox, eclipse, libre-office writer, zsh, emacs. Any help will be greatly appreciated. I'll gladly give you any other output you might need.

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  • squid running out of sockets

    - by drscroogemcduck
    I have a setup where squid sits in front of a java server and acts as a reverse proxy. Recently i've load tested the site and if i fire 100 threads at it each making a request using jmeter i start getting errors in my load test tool like 'no route to host' even though the load test tool and the server are on the same machine. if i run the following command where port 82 is the port my squid server is running on: netstat -ann | grep 82 | wc -l i get 22000 or something and most of them are in TIMED_WAIT. i'm thinking that maybe the huge number of sockets in the TIMED_WAIT state are starving the box of resources.

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  • How to test server throughput

    - by embwbam
    I've always used apache benchmark to try to get a rough idea of how many requests/second my server can handle. I read that it was good, and it seemed to work well. Enter node.js, which is fully event-based, so it never blocks. If I run apache benchmark on a simple hello world server it can handle 2500 requests per second or so. However, if I put a timeout in the hello world function, so that it responds after 2 seconds, apache benchmark reports a dramatically reduced throughput: about 50/s. I'm running 100 concurrent connections with ab. If I increase the concurrency, it goes up. This makes sense, because apache benchmark is basically sending out requests in batches of 100, which come back every 2 seconds. 100 requests / 2 seconds = 50 requests / second If I increase the concurrency to about 400 or 500, it starts to crash. I don't think I've hit node.js's limit, I think I'm hitting a wall in my operating system on the number of open file descriptors or sockets or something. Any way I can get a good guess about how many requests my server can handle? I want to make sure the test computer isn't the one causing the problem.

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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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  • Unattended Kickstart Install

    - by Eric
    I've looked around quite a bit and have seen similar setup and questions, but none seem to work for me. I'm using the following command to create a custom ISO: /usr/bin/livecd-creator --config=/usr/share/livecd-tools/test.ks --fslabel=TestAppliance --cache=/var/cache/live This works great and it creates the ISO with all of the packages and configs I want on it. My issue is that I want the install to be unattended. However, every time I start the CD, it asks for all of the info such as keyboard, time zone, root password, etc. These are my basic settings I have in my kickstart script prior to the packages section. cdrom install autopart autostep xconfig --startxonboot rootpw testpassword lang en_US.UTF-8 keyboard us timezone --utc America/New_York auth --useshadow --enablemd5 selinux --disabled services --enabled=iptables,rsyslog,sshd,ntpd,NetworkManager,network --disabled=sendmail,cups,firstboot,ip6tables clearpart --all So after looking around, I was told that I need to modify my isolinux.cfg file to either do "ks=http://X.X.X.X/location/to/test.ks" or "ks=cdrom:/test.ks". I've tried both methods and it still forces me to go through the install process. When I tail the apache logs on the server, I see that the ISO never even tries to get the file. Below are the exact syntax I'm trying on my isolinux.cfg file. label http menu label HTTP kernel vmlinuz0 append initrd=initrd0.img ks=http://192.168.56.101/files/test.ks ksdevice=eth0 label localks menu label LocalKS kernel vmlinuz0 append initrd=initrd0.img ks=cdrom:/test.ks label install0 menu label Install kernel vmlinuz0 append initrd=initrd0.img root=live:CDLABEL=PerimeterAppliance rootfstype=auto ro liveimg liveinst noswap rd_NO_LUKS rd_NO_MD rd_NO_DM menu default EOF_boot_menu The first 2 give me a "dracut: fatal: no or empty root=" error until I give it a root= option and then it just skips the kickstart completely. The last one is my default option that works fine, but just requires a lot of user input. Any help would be greatly appreciated.

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  • Monit can't detect MySQL, but I can

    - by Matchu
    Monit is configured to watch MySQL on localhost at port 3306. check process mysqld with pidfile /var/lib/mysql/li175-241.pid start program = "/etc/init.d/mysql start" stop program = "/etc/init.d/mysql stop" if failed port 3306 protocol mysql then restart if 5 restarts within 5 cycles then timeout My application, which is configured to connect to MySQL via localhost:3306, is running just fine and can access the database. I can even use MySQL Query Browser to connect to the database remotely via port 3306. The port is totally open and possible to connect to. Therefore, I'm pretty darn certain that it's running. However, running monit -v reveals that Monit cannot detect MySQL on that port. 'mysqld' failed, cannot open a connection to INET[localhost:3306] via TCP This happens consistently, until Monit decides not to track MySQL anymore, as configured. How can I begin to troubleshoot this issue?

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  • why my server has a dir named "?"

    - by liuxingruo
    These are all the dirs in my server: ? bin boot dev etc home lib lost+found media media2 misc mnt net opt proc root sbin selinux srv sys tmp usr var why there is a "?" dir? Thanks very much. BTW: the touch command was found on my server(wiered). I list the bin dir: alsacard cp dd env hostname loadkeys more ps sed tcptraceroute alsaunmute cpio df ex igawk loadkeys.static mount pwd setfont traceroute6 arch csh dmesg false ipcalc logger mountpoint raw setserial tracert awk cut dnsdomainname fgrep kbd_mode login mv red sh view basename date doexec gawk keyctl ls netstat redhat_lsb_init sleep ypdomainname bash dbus-cleanup-sockets domainname gettext kill mail nice rm sort cat dbus-daemon dumpkeys grep ksh mailx nisdomainname rmdir stty chgrp dbus-monitor echo gtar ksh93 mkdir pgawk rpm su chmod dbus-send ed gunzip link mknod ping rvi sync chown dbus-uuidgen egrep gzip ln mktemp ping6 rview tar touch is missing, how can i get it back?

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  • pg_dump not working - do I need to change order of $PATH?

    - by A4J
    I'm trying to set the $PATH to pick up the latest version of pg_dump as I'm currently getting a mismatch error while doing a migrate in my Rails app (I recently changed the schema type to SQL). I have added a new file in /etc/profile.d called pg_dump.sh, and inside that put: PG_DUMP=/usr/pgsql-9.1 export PG_DUMP PATH=$PATH:$PG_DUMP/bin export PATH On looking at echo $PATH, I get: /usr/local/rvm/gems/ruby-1.9.3-p194/bin:/usr/local/rvm/gems/ruby-1.9.3-p194@global/bin:/usr/local/rvm/rubies/ruby-1.9.3-p194/bin:/usr/local/rvm/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/pgsql-9.1/bin:/root/bin And I still get the error. Do I need to change the order? If so any ideas how? Output of 'ls /usr/pgsql-9.1/bin': clusterdb droplang pg_archivecleanup pg_ctl pg_standby psql createdb dropuser pg_basebackup pg_dump pg_test_fsync reindexdb createlang ecpg pgbench pg_dumpall pg_upgrade vacuumdb createuser initdb pg_config pg_resetxlog postgres vacuumlo dropdb oid2name pg_controldata pg_restore postmaster And output of 'which pg_dump': /usr/bin/pg_dump Error message on running cap 'deploy:migrate': ** [out :: 46.4.9.199] pg_dump: server version: 9.1.4; pg_dump version: 8.4.11 ** [out :: 46.4.9.199] pg_dump: aborting because of server version mismatch ** [out :: 46.4.9.199] rake aborted! ** [out :: 46.4.9.199] Error dumping database output of 'pg_dump --version': pg_dump (PostgreSQL) 8.4.11

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  • "make menuconfig" throwing cannot find -lc error in my Fedora 11 PC

    - by Sen
    When i try to do a make menuconfig in a Fedora 11 machine it is throwing the following error message: [root@PC04 kernel]# make menuconfig HOSTCC -static scripts/basic/fixdep scripts/basic/fixdep.c: In function âtrapsâ: scripts/basic/fixdep.c:377: warning: dereferencing type-punned pointer will break strict-aliasing rules scripts/basic/fixdep.c:379: warning: dereferencing type-punned pointer will break strict-aliasing rules /usr/bin/ld: cannot find -lc collect2: ld returned 1 exit status make[1]: *** [scripts/basic/fixdep] Error 1 make: *** [scripts_basic] Error 2 Please help me on this issue? How can i solve this? Thanks, Sen

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  • postfix smtp relay script

    - by Peter Sander
    I have a Postfix server and using it with Outlook (POP/SMTP). I have different sender addresses for an account. Now I want to configure a relay for a specific sender address. For example I have postfix for my main domain domain1.com. Now I have a sender address that is domain2.com. For that sender address I want that postfix to relay mail to a second SMTP server. I think that should be possible without problems. But the problem is that I have to create a SSH tunnel to the second server to connect to the SMTP server. But I cant use a persistent SSH connection so I want to know if it is possible that postfix executes some script before relaying the mail to the second SMTP server. I already found some information for executing a script when incomming emails but I only want to establish the SSH tunnel before postfix relays the mail to the second SMTP server.

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  • black backgrounds appear grey on gnome-terminal

    - by Martin DeMello
    Running gnome under Ubuntu Lucid $ env | grep TERM TERM=xterm COLORTERM=gnome-terminal I had to edit both my .muttrc and my vim colorscheme to change the background color from black to none in order to get a proper black background (or, more accurately, to retain the terminal's default black background). Setting it to black resulted in a dark grey background. This only happens with gnome-terminal; konsole, xterm and rxvt are fine.

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  • /etc/init.d/libvirtd start fails but service libvirtd start works. Why?

    - by Gregg
    CentOS 6.3, running as root (Shush). Can you please tell me why I would get initialisation failures from the init scripts but the service command works a treat? There was nothing in /var/log/messages or /var/log/libvirt/* all I have it the Terminal output: /etc/init.d/libvirtd start Starting libvirtd daemon: libvirtd: initialization failed [FAILED] I changed the libvirtd logging level to 1, the highest, but saw nothing in messages after another failure.

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  • Kerberos: Running an app with a parameter using krenew

    - by Mihai Todor
    I need to run an application with krenew, but the application also needs to receive a parameter via command line and I need to send its output to a file. From the documentation, it looks like this should do the trick: krenew -t -- sh -c 'compute-job > /afs/local/data/output' but, unfortunately, when I run the command below: krenew -s -- sh -c './my_app config.xml > results/test.txt &' the application just dies after a while and I can see from the output of ps aux that krenew is not running along with my_app. I am not sure what the parameter -t does, and as far as I can see, if I run krenew -s ./my_app, it works properly. I hope someone can clarify this.

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  • Get XMMS2 to call outside script on automatic playlist advance?

    - by Alex Balashov
    Is there a way to get XMMS2 to call an outside script when it advances in a playlist - either automatically or via manual intervention (e.g. xmms2 next)? The goal is to have balloons pop up on my desktop to tell me what new song has started playing, and I really, really don't want to write a background daemon that polls 'xmms2 info' or 'xmms2 current' if there's a way to get it to issue the callback. Thanks in advance!

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  • Are these mySQL user settings vulnerable?

    - by Kavon Farvardin
    I'm using myphpadmin to manage the databases and I'm new to SQL in general. Am I suppose to keep an open anonymous user on localhost so things like drupal can access mySQL? It seems like having a non-passworded root on my server's hostname is retarded but I don't know what I'm doing with this in general. The user who's name starts with a b is the one I use to login and do things like make a database.

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  • Why does dstat show zeroes for disk activity on my virtual private server running Ubuntu?

    - by Jonathan Berger
    I'm trying to monitor the number of disk reads and writes on my VPS (Rackspace in this case) running Ubuntu 9.04. I realize there are many tools to do this, but when using dstat 0.7 I tried the following command: dstat -d The output is just two columns of zeroes even when I upload a large file via scp that should be causing a large number of disk writes. Why is this, and how do I get dstat to correctly display the number of disk reads and writes?

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