2011-12-16T12:37:00.000Z

MYSQL database replication - master/slave setup...(debian 6.0.3, mysql-server 5.1.49-3) master:/etc/mysql/my.cnf add, (un)comment the following: ##bind-address = 127.0.0.1 #listen to all ##master server-id = 1 log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 10 max_binlog_size = 100M binlog_do_db =

installing webacula on debian squeeze (6.0.3) and bacula 5.0.3.

2011-11-09T11:50:00.000Z

notes are based on instructions found at http://www.java-tutorial.ch/ubuntu/webacula-installation-on-ubuntu with just few minor corrections... notes: cd /usr/local/src/ git clone http://github.com/tim4dev/webacula cd webacula/ mkdir /usr/share/webacula/ apt-get install zendframework php5-gd a2enmod rewrite cp -rfp * /usr/share/webacula/ cd /usr/share/webacula/ joe config.ini usermod -aG bacula

2011-10-14T08:00:00.000Z

Update 10/2011: - new 1.5 version - tested under debian squeeze...and it works - add 'wanpipe'option. it should be useful for people that are using sangoma's cards - add some more fool-proof checks Original text from 08/2011: This asterisk installation helper (aih) *should* help you install asterisk (+ dahdi linux/tools, libpri...) from source. For now you can choose between versions 1.6.2.x

2011-09-01T15:26:00.000Z

reveal the text behind asterisk in web form's passwords...use address bar in firefox or developer tools in chrome. javascript:(function(){var s,F,j,f,i; s = ""; F = document.forms; for(j=0; j

2011-08-29T12:16:00.000Z

nice article about fiddling around with display (resolution) trough cli in linux, xrandr to be precise: http://www.ubuntugeek.com/how-change-display-resolution-settings-using-xrandr.html

2011-07-18T09:13:00.000Z

vnc, remote desktop, vm's combo...each window is open within the previous one...

2011-05-20T11:45:00.004Z

passed dcap practical...i hope for the same when it comes to written part. update: beginning of august and finally received the certificate: digium certified asterisk professional (DCAP) number 2027....yey me :)

2011-04-22T08:09:00.004Z

bacula script.... #!/bin/sh #scavara -21.04.2011. #what this *should* do is check bacula db for all media volumes marked as purged #using bconsole #and then check if coresponding files still exist on the disk and then delete them # DIR="/whereeverzyour/clients/dir/is" ALLCLIENTS=(`ls $DIR/`) #you might want to exclude some clients from this check EXCLUDECLIENTS=('client1 client2.

2011-04-15T10:43:00.000Z

after installing vsftp on centos 5 (5.6 Final) i could get access to file inside a user home directory. the one would successfully do ftp login, pwd would return /home/someuser, but no files would be visible/accessible. this command fix the problem(?!): setsebool -P ftp_home_dir on

2011-03-31T13:23:00.002Z

my best of 90's youtube playlist: http://www.youtube.com/view_play_list?p=04B3A99CA3E8F1CC

2011-02-25T21:22:00.001Z

mysql --defaults-extra-file=/etc/mysql/debian.cnf somedatabase -B -e " select someid, perhapssomethingmoredescriptive,SUM(TOTAL) - SUM(FREE) as usedspace from drives join hardware on HARDWARE_ID=hardware.ID group by HARDWARE_ID;" | sed 's/\t/","/g;s/^/"/;s/$/"/;s/\n//g' > /home/scavara/disk_usage.csv tnx's to joy... db contains some info about bunch of servers including total/free space on

2011-01-31T12:33:00.002Z

2011-01-09T20:54:00.000Z

setup an account with amazon's AWS. using its management console it easy to setup an instance, basically a vm. their elastic compute cloud or ec2 micro instance (613 MB of memory, up to 2 ECU and you can run 32-bit or 64-bit archs. comparing them to some of their competitors, they are at least one leap ahead BUT no i couldn't load ipv6 module so giving up on it....for now ;)

2010-11-02T11:03:00.003Z

used script below in order to change host_name so it uses short name (no realm/domain name), plus to insert alias line with FQDN of the host in nagios host's cfg files where file name format was $hostname.$realm.cfg. #!/bin/bash realm=some.domain.dotsometing hostname=( ` grep host_name *.$realm.cfg | sed s/.$realm.cfg://g | awk '{print $1}'` ) for i in ${hostname[@]} do sed -i "s/$i.$realm/$i/g"

2010-10-26T07:27:00.005Z

munin custom plugins script #!/bin/bash #this script will create custom munin plugins (if_custom_$) for ISND #interface(s) errors: overruns (tx/rx), carrier (tx) and frame (tx) # #script should work on debian. adjust path and sympath for other #os's accordingly # #remove comment to cleanup any unwanted plugins that came by #default #find /etc/munin/plugins -type l \( ! -iname "

2010-09-25T17:01:00.000Z

2010-07-31T11:15:00.007Z

dual wan - dual lan ip route / iptables setup on linux (debian squeeze). make sure that: /proc/sys/net/ipv4/conf/all/rp_filter 0 /proc/sys/net/ipv4/ip_forward 1 this setup involves 2 wan and 2 lan interfaces. to spice up things a bit you can add a 5th connection - vpn to work for example using openconnect (== cisco's anyconnect). i didn't add it to the script below, since i use it as needed.

puppet.conf

2010-07-28T12:14:00.001Z

[main]logdir=/var/log/puppetvardir=/var/lib/puppetssldir=/var/lib/puppet/sslrundir=/var/run/puppetfactpath=$vardir/lib/facterpluginsync=truemanifest=/etc/puppet/manifests/site.ppmodulepath=/etc/puppet/modules [development]manifest=/etc/puppet/development/manifests/site.ppmodulepath=/etc/puppet/development/modules[puppetmasterd]templatedir=/var/lib/puppet/templatescertname =

2010-07-21T12:12:00.001Z

someuser@someserver:/etc/puppet/modules$ cat radiusclient/manifests/init.pp class radiusclient { package { libradiusclient-ng2: ensure => installed } file { "/etc/radiusclient-ng/dictionary": ensure => present, owner => root, group => root, mode => 0644, source => "puppet:///modules/radiusclient/

puppet master - rsync/manifests/init.pp

2010-07-21T12:10:00.001Z

someuser@someserver:/etc/puppet/modules$ cat rsync/manifests/init.ppclass rsyncbackup { package { rsync: ensure => installed } file { "/usr/local/sbin/create-files.sh": owner => root, group => root, mode => 0755, source => "puppet:///modules/rsync/create-files.sh"; "/.rsync-filter": owner => root, group => root,

puppet master - muninclient/manifests/init.pp

2010-07-21T12:08:00.001Z

someuser@someserver:/etc/puppet/modules$ cat muninclient/manifests/init.ppclass munin_node {package { "munin-node": ensure => installed } file { "/etc/munin": ensure => directory, mode => 0755, owner => root, group => root; "munin-node.conf": mode => 0644, owner => root, group => root, path => "/etc/munin/munin-node.conf", source => "puppet:///

puppet master - misc/manifests/init.pp

2010-07-21T12:04:00.000Z

xxxx@xxx:/etc/puppet/modules$ cat misc/manifests/init.ppclass ssh { package { openssh-server: ensure => installed } file { "sshd_config": mode => 644, owner => root, group => root, path => "/etc/ssh/sshd_config", } exec { "check_for_root_enable_login": command => "perl -pi -e 's,PermitRootLogin

2010-07-11T18:15:00.002Z

apt-get install fluxbox gkrellm conky screen zsh x11-apps

2010-05-12T19:11:00.000Z

#!/bin/bash # this is just part of script that should... # scavara05/2010 while read line do for((i=100;i<=999;i+=1)); do array=(`echo $line | sed -e "s/.\{0\}$/$i&/" -e 's/./& /g'`) arraycnt=${#array[@]} for((j=0;j<=$arraycnt;j+=1)); do let "valueofcn1=7*${array[0]}+6*${array[1]}+5*${array[2]}+4*${array[3]}+3*${array[4]}+2*${array[5]}+7*${array[6]}+6*${array[7]}+5$

2010-04-03T13:31:00.002Z

few windows 7 tips in network monitoring / status, login delay and ease of access that i found on cnet's tv show Tekzilla. 1. nostalgic about old network monitor/status in systray? download and run a small app from: http://itsamples.com/downloads/network-activity-indicator.zip 2. like many others, i like to turn off most of the visual enhancements offered in 7. Using solid colors instead of

2010-03-11T09:23:00.002Z

java.net.ConnectException: Network is unreachable for past few days i was banging my head, trying to figure out why java applets as well as files opened with javaws won't work. of course, i was blaming local installation, java cache and so forth. finally, i decided to ask for directions and soon enough (few minutes later) i googled the solution. the issue is related to the fact that most of

2010-02-03T16:08:00.000Z

scavara@xxxxxxx:~$ wc -l .ssh/known_hosts 200 .ssh/known_hosts lots of doubles but, hey, still 200...yey!

2010-01-09T14:09:00.006Z

below text is out of date...update will follow..soon...i hope setting up puppet server and client howto, actually its more of a notes that's been picked up from history add backports to source list:echo "deb http://www.backports.org/debian lenny-backports main" >> /etc/apt/sources.list apt-get -t lenny-backports install puppetmaster librack-ruby librack-ruby1.8 libgemplugin-ruby

2009-12-07T11:24:00.001Z

check before you burn check digital fingerprint of a downloaded file will save you from some headaches in the future and it doesn't take to much time to do it. i guess most of the people think it is and usually they skip this step. example: downloading debian 5.0.3 (lenny) amd64 CD1 from: http://cdimage.debian.org/debian-cd/5.0.3/amd64/iso-cd/ get the image: wget http://cdimage.debian.org/

2009-11-19T08:41:00.005Z

read 'S:' if you cannot install libxml-sax-perl where libxml-sax-perl: conflicts with CPAN version of SAX.pm. first of all, this is not a bug. i found this useful: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=130376 (so)it's might do you good to read: /usr/share/doc/libxml-sax-perl/README.Debian. P: cavara@xxx:~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree

2009-11-06T14:11:00.005Z

if using dual-boot via grub2 and, after its installation windows (7,vista, xp...whatever) is missing from grub's menu, use this link to fix it:http://blogs.koolwal.net/2008/12/28/windows-xpvista-dual-boot-does-not-boot-from-grub2-or-grub-pc/or this cut out version:create and edit the following file using your favourite editor, joe in this case:sudo joe /etc/grub.d/11_Windows containing text below

2009-10-16T06:31:00.009Z

few basic tips & tricks on twitter by tom merritt from cnet(tv)@username - makes link to username, often used for replies or a referral. when using @username for replying be aware that it can be seen by anyone. use direct messaging when privacy is needed: d username. can be sent only to a follower. OH message - used to anonymously passed something you (Over)Heard.RT @username. Re-Tweet @username

2009-10-12T12:42:00.003Z

installing nagios-nrpe on centos5 (history):installing RPMforge:yum install yum-prioritiesjoe /etc/yum/pluginconf.d/priorities.confjoe /etc/yum.repos.d/CentOS-Base.repo rpm --import http://dag.wieers.com/rpm/packages/RPM-GPG-KEY.dag.txtcd /tmp/wget http://apt.sw.be/redhat/el5/en/x86_64/RPMS.dag/rpmforge-release-0.3.6-1.el5.rf.x86_64.rpmrpm -K rpmforge-release-0.3.6-1.el5.rf.*.rpmrpm -i

2009-09-25T10:09:00.004Z

note to myself: next time when stumble upon this error while trying to install slapd:tarting OpenLDAP: slapd - failed.The operation failed but no output was produced. For hints on what wentwrong please refer to the system's logfiles (e.g. /var/log/syslog) ortry running the daemon in Debug mode like via "slapd -d 16383" (warning:this will create copious output)......although slapd will start as

2009-09-21T11:22:00.004Z

444, the number of the..xen!? ;) one would think that adding allocated memory of all the children plus dom0 (use xm list command) and comparing that to a number resulted from subtraction of total_memory and free_memory using xm info command would result in the same number, but its not:sudo xm list | sed '1d' | awk '{print $3}' | xargs echo | sed "s/ / + /g" | bc8192sudo xm info | grep _memory |

2009-08-17T08:37:00.022Z

transforming a 'plain-old' usb stick into live-usb with persistent option and if selected encrypted home partition is set, but sill keeping a storing capability. this would come in handy when you occasionally need linux-on-a-stick ;)down below is filtered out history of steps i took to create it. there is a lot of room for improvement which i'll do as it comes along.using fdisk i devided 16GB

2009-08-06T08:29:00.002Z

importing contacts from abook to gmail.~$abook --convert --infile .abook/addressbook --outformat csv --outfile abook.csvedit abook.csv and add a new line at the very top of the file. this line should only contain one ; (comma) otherwise when you import it to gmail you'll have (Unnamed contact) instead of real contact's name. There is probably a more professional way of solving the "unnamed

2009-05-05T20:23:00.005Z

moving debian repository from one machine (running etch) to another (running lenny) is not as trivial as i thought it would be.well, it not hard ether, is just that you should do few things before the new machine is happy, up and running. the problem lies in the fact that you're moving from reprepro version 1.3.1+1-1 to version 3.5.2-6:. now that's a proper jump, ain't it ;)once i moved all them

2009-04-06T14:06:00.002Z

another 'hundred' to keep track of..scavara@whocares:~$ cat .ssh/known_hosts | wc -l101

2009-03-26T12:04:00.002Z

I've installed the newest stable of RRD MA (3.1) on debian etch and I stumble upon few problems:- poller.php in cacti wasn't polling anything nor it gave me any errors in the log file.solution: removed php4-* and install php5. most likely that reinstalling php4 would work as well ;)another suggestion would be not to install cacti from etch repository but to do it manually.- when using psUI i was

2009-03-13T11:15:00.002Z

i'll take a shot at cisco's 640-533 which is f'n prerequisite for taking any of CCSP exams. god, give me a reason why not to quit! :)approximately month to go. i don't wanna spend any money on (e)books (cheap bastard) so i try, downloading ccna 640-553 iins official exam cert guide - 2008. it took me twice as long to find a password for rar-ed file, which is 'thebb' btw. i guess the lame and old

2009-02-15T17:31:00.002Z

2009-02-09T08:32:00.002Z

Adminspotting :)))))

2009-01-17T13:30:00.004Z

#!/bin/sh###################################################### simple script that will mount/umount# encrypted partition using cryptsetup/LUKS.# how to setup such partition can be found# at:# http://www.spmalloy.com/howto/linux-cryptofs.html# ######################################################################################################### edit this part accordingly - start ## mount

2008-12-20T21:05:00.003Z

3 x 100 :)

2008-11-18T15:33:00.002Z

daul keyboard (en_us/hr) layout in xfce4put following line in autostarted applications:setxkbmap -option grp:switch,grp:alt_shift_toggle us,hr

2008-10-25T14:46:00.004Z

#!/bin/sh#################################################### a simple script which sends an email #### every monday/thursday when week number #### is even. when week number is odd, email #### is being sent every tuesday/friday. ####################################################WEEK_MT=0WEEK_TF=0DOTW=`date +'%u'`WN=`date +'%V'`SUBJECT="some subject"MAILTO="someone@

2008-10-06T21:42:00.004Z

securing the repo where:A: deb repoB: rpm repoC: main repo (rpm and deb)A: create keys:gpg --gen-keyNAME=uid without . get it using gpg --list-keysmodify $REPO_HOME/conf/distributions so it contains following line:SignWith=NAMEsign (and add to the repository) the package: reprepro --ask-passphrase -A ARCH -Vb $REPO_HOME CODENAME some-package.debARCH=i386, all, amd64..CODENAME=check conf/

2008-09-11T11:46:00.003Z

i guess i'm continuing with easy, short but sweet..:)REinstalling the package on rpm based distro's (RH/fedora/centOS..):1. rpm -e --nodeps package_name2. yum install package_name

2008-09-04T09:44:00.003Z

friend of mine sent me new album from metallica. btw, i have no idea where he got it from. once i extracted the rar archive i've noticed that all filenames (songs) had some guys name attached to the name of the song:001-that_was_just_your_life-SOMEUSER.mp3002-the_end_of_the_line-SOMEUSER.mp3003-broken_beat_and_scarred-SOMEUSER.mp3004-the_day_that_never_comes-SOMEUSER.mp3005-

2008-08-29T07:48:00.002Z

after creating (debian etch) xen child which fstab looks like:/dev/hda1 / ext3 errors=remount-ro 0 0 1/dev/hda2 none swap sw 0 0/dev/hda3 /data ext3 defaults 0 2root and swap partitions mounted but /dev/hda3 (/data) wasn't so:1. forgot to create /data dir (dumbass)still didn't

2008-07-22T14:41:00.003Z

dual monitor on Dell M601.get drivers from:http://us.download.nvidia.com/XFree86/Linux-x86/173.14.05/NVIDIA-Linux-x86-173.14.05-pkg1.run(***link above is not kept up-to-date!!) 2. configure xorg.conf (below) and restart X.########### xorg.conf ##################Section "ServerLayout" Identifier "Default Layout" Screen "Default Screen" 0 0 InputDevice "Generic Keyboard"

2008-07-09T14:40:00.008Z

Connect to Linksys AP (in this case WRT-300N) trough console/serial port.

2008-07-08T11:02:00.005Z

checking available memory on cisco routers:boot/reloadpress ctrl-breakrommon> devrommon2> meminfo

2008-07-08T11:00:00.008Z

configure wireless bcm43xx on lenny (2.6.22-3-686)1. blacklist the existing moduleedit /etc/modprobe.d/blacklistadd following at the end of file: blacklist bcm43xx2. using module-assistant select and install ndiswrapper3. download bcm43xx drivers:wget freewebs.com/ronserver/bcm43xx.tar.gz4. extract downloaded file. you'll get two files:bcm43xx/oem3.infbcm43xx/bcmwl5.sys5. run:ndiswrapper -i oem3.

2008-07-08T11:00:00.007Z

syncing time for domU (viraul machine) from dom0 (parent):date -s "`date`"

2008-07-08T10:53:00.004Z

wireless... ipw2100 and debain lenny/sid (2.6.24-1-686)1. wget latest_firmware_URL tar zxvf latest_firmwarecd latest_firmware_DIRcp *.fw /lib/firmware/2. wget latest(ieee80211-1.2.18.tgz)_URLtar zxvf latest(ieee80211-1.2.18.tgz)_FILEcd latest(ieee80211-1.2.18.tgz)_DIR./remove-oldcd ..3. wget latest_driver_URLtar zxvf latest_driver_filecd latest_driver_DIR./remove-oldcd ../latest(ieee80211-1.2.18.

2008-07-08T10:52:00.002Z

install phpbb3 on debian etch1. apt-get install mysql-server-5.0 php5 php5-mysql zlib-bin zlib1g zlibc libapache2-mod-php5 imagick php5-imagick php5-gd2. download and extract phpbb3 package3. cp -rf phpBB3/ /var/www/4. cd /var/www/phpBB3/5. chown www-data:root config.php cache/ files/ store/ images/avatars/upload/7. mysqladmin create phpbb38. mysqladmin -u root -p create phpbb39. mysql -u

2008-07-08T10:51:00.002Z

installing JAVA RRD MA 3.0+ on debian etch1. install etch2. apt-get install apache2 rrdtool sun-java5-jre jsvc jsvc-dev libcommons-daemon-java3. download rrd ma: http://monstera.man.poznan.pl/jra1-wiki/images/files/geant2-java-rrd-ma_3.0-1_i386.deb4. download perfsonar tomcat and exist: http://downloads.perfsonar.eu/dependencies/debian/5. add 'capability' module in /etc/modules6. rebootif /opt/

2008-07-08T10:49:00.003Z

install nfsen/nfdump on debian etch0. install prerequisites..1. download nfdump and extract to /tmp2. go to /tmp/nfdump-1xxx and run ./configure --enable-profile THEN make THEN make install3. download nfsen and extract to ~4. go to ~/nfsen-xxxx/etc and copy nfsen-dist.conf to nfsen.conf5. edit accordingly6. cd .. and run ./install.pl etc/nfsen.conf 7. in this example, base dir is /data/nfsen8. cd

2008-07-08T10:42:00.005Z

mount share with space in share name:1. trough cli:mount -t smbfs -o username=someuser,password=somepassword "//machine/share_with space" /mnt/local_dir/2. trough fstab: //machine/share_with\040space /mnt/local_dir smbfs auto,username=someuser,password=somepassword,rw 0 0

2008-07-08T10:36:00.003Z

changing amount of memory used by xen child:edit 'memory=####' line in /etc/xen/something.cfg# xm list (get domain 'dom-num')# xm mem-set 'dom-num' 1024 (in this case 1024MB)# xm reboot 'dom-num'

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