Can not login to server: “Server is going down” on ssh login
karlo I was not able to log into an old server. Directly after connecting over ssh, I got a “Server is going down” message. Solution is to reboot into safe mode,…
Samba LDAP new version error [AttributeType not found: “displayName]?
When I was updating to a new openldap server version, I got: samba olcObjectClasses: AttributeType not found: "displayName" I first tried recompiling the ldif’s with a new samba.schema (you can…
yum update matahari errors (libcommon, libmnet, …)
Are you getting the following on yum update ? libmcommon.so.0.0.1()(64bit) is needed by (installed) matahari-net-0.4.0-5.el6.x86_64 libmnet.so.0.0.1()(64bit) is needed by (installed) matahari-net-0.4.0-5.el6.x86_64 matahari-lib = 0.4.0-5.el6 is needed by (installed) matahari-net-0.4.0-5.el6.x86_64 libmqmfagent.so.0.0.1()(64bit)…
RHEL6: “DeprecationWarning: Call to deprecated function: hasNow”
A RHEL6 installation complained: “DeprecationWarning: Call to deprecated function: hasNow” in /usr/libexec/rhsmd . According to RedHat, this is not a problem, as rhsmd is working fine. Workaround in order to…
RHEL6: Fixing reposync UnboundLocalError: local variable ‘exit_code’ referenced…
yum-utils-1.1.31-7 fixes this issue, but it’s not available for RHEL (as far as I see). You can fix /usr/bin/reposync: --- a/reposync.py +++ b/reposync.py @@ -198,6 +198,7 @@ def main(): #…
Installing ruby mysql / activerecord-mysql-adapter gem on RHEL 6 x86_64
I couldn’t install activerecord-mysql-adapter. After some duckduckgo’ing, I found the solution. Error: Error: Building native extensions. This could take a while... ERROR: Error installing mysql: ERROR: Failed to build gem…
Use a new ttf font in Fedora 17
First, find the dir you can put the font: $ grep dir /etc/fonts/fonts.conf . If it lists ~/.fonts , create the /home/username/.fonts dir Put the ttf file in the ~/.fonts…
Extracting all images from a PDF file
I found working instructions here.
Split an image into multiple images
1. Install imagemagick 2. $ convert originalimage.png -crop 100%x50% +repace output-page.png
Disable terminal window border in fallback mode
-edit- this only works for gnome with compiz $ ccsm go to window border type the following in ‘Decoration windows’: !(class=Gnome-terminal)
Force fallback for gnome 3
Do: $ dbus-launch gsettings set org.gnome.desktop.session session-name 'gnome-fallback'
Opera: disable two-button mouse navigation
Go to: opera:config#Enable%20Mouse%20Flips Disable. :)
Opera better ctrl-tab (without pop-up)
Go to opera:config, search for ‘Window Cycle Type’, change to 2
Dropbox problem on Fedora 16, 64 bit, not responding
I had this: /home/karlo/.dropbox-dist/libz.so.1: version `ZLIB_1.2.3.3' not found (required by /usr/lib64/libxml2.so.2) Failed to load module: /usr/lib64/gio/modules/libgvfsdbus.so And the icon did not show the sync-arrows. Disabling proxies worked for me. Right-click…
Slow down fan speeds (less noise) on Fedora with Nouveau (default) driver
Add this to your commandline: nouveau.perflvl_wr=7777 Will allow you to change the fan speed. After a reboot, change fan speed by; # echo 40 > /sys/class/drm/card0/device/pwm0 I put the following…
Multiple JPGs to one single PDF (Linux/Fedora)
Found here: http://blog.hacka.net/#post49 # yum install install ImageMagick pdftk $ cd jpgdir; for FILE in *.jpg; do convert $FILE -compress JPEG $FILE.pdf; done; pdftk "*.pdf" cat output allPages.pdf :)
Error mounting location: volume doesn’t implement mount
Use dbus-launch before your command.
Focus follows mouse in gnome fallback
gconftool-2 --type string --set /apps/metacity/general/focus_mode mouse OR: Install ccsm Run it Go to general options Click ‘focus and raise behaviour’ Untick ‘raise to focus’ Now the windows will focus on…
Use ssh-agent for multiple terminal windows
This script by user ‘kwall’ works well for the ssh-agent. Add ssh-add before the last ‘fi’ to add the default ssh keys into it as well.
Fedora focus follows mouse
Tuto here Only follow: gconftool-2 --type string --set /apps/metacity/general/focus_mode mouse Also raise: gconftool-2 --type boolean --set /apps/metacity/general/auto_raise true gconftool-2 --type string --set /apps/metacity/general/auto_raise_delay 600
Encrypt Dropbox content easily on Linux/BSD/OSX using encfs
Install encfs do $mkdir ~/Dropbox/Secure ; mkdir ~/DropboxSecure do $ encfs ~/Dropbox/Secure ~/DropboxSecure I chose paranoia mode. This will use the settings below. Enter a secure password and there you…
Easily setting up a ThePirateBay.org mirror (wordpress plugin)
Easier than my previous post, use this plugin for wordpress.
Example postfix + dovecot SSL configuration
I generated SSL certs using this guide. Then I set up dovecot and postfix. View my dovecot conf here and my psotfix main.cf here. You can use this to configure…
[Solution] Can’t use /usr/lib/dovecot/imap: No such file or directory
Getting this? $ sudo service dovecot restart * Restarting IMAP/POP3 mail server dovecot Error: mail_executable: Can’t use /usr/lib/dovecot/imap: No such file or directory Fatal: Invalid configuration in /etc/dovecot/dovecot.conf …fail! install…
Update wordpress without needing FTP
Give your wordpress dir the right permissions: sudo chmod -R 775 wp-dir ; sudo chown -R username:www-data Add this in wp-config.php: define(‘FS_METHOD’,’direct’); You can now update via ‘update now’.
Test SMTP block (sshguard, fail2ban)
I used the following script to test brute-force protection: #!/usr/bin/php <?php for( $i=0; $i<99; $i++ ){ echo “Will try now. \n”; $mbox = imap_open(“{mail.mailserver.com:143/imap/novalidate-cert}INBOX”,”user_test_$i”,”foobar”,0,0); } ?> Edit: You will need…
Deprecated Linux networking commands and their replacements
Found this gem on an other blog: Deprecated Linux networking commands and their replacements I mostly use $ifconfig. Let’s try `$ ip a` from now on :).
[Solution] GConf Error – GetDefaultDatabase – org.gnome.GConf.Server
Recently I got the error: GConf Error: Configuration server couldn’t be contacted: D-BUS error: Method ” GetDefaultDatabase” with signature “” on interface “org.gnome.GConf.Server” doesn’t exist. I got this while trying…
[Solution] Jar not working via command line
Getting this: $ java drs.jar Exception in thread “main” java.lang.NoClassDefFoundError: drs/jar Caused by: java.lang.ClassNotFoundException: drs.jar at java.net.URLClassLoader$1.run(URLClassLoader.java:217) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) Could not…