Thailand 2015

Author: Stephan  |  Category: Sonstiges, Unterwegs

Fall 2015 I was in Thailand for my first bagbacking experience. I travelled from Chiang Mai ( where I visited an elephant sanctuary) in the north to Lopburi ( with its monkeys) , Ayutthaya ( I explored the ruins there with a bicycle ) and ended up Kanchanaburi at the river Kwai. There I was swimming in the basins of the erawan falls with some fishes ,traveling across the Death Railway and relaxing on a house bout on the river kwai.

Travelling as bagpacker was a great experience enjoying freedom and adventure , finding new friends.

2016 there will be an update , I promise


Some wats in Chaing Mai


playing with the big guys


back in Chiang mai


Trainstation on my route to lopburi


monkey alarm !!


Ayutthaya


Erawan Falls ( beautifull to swim)


Death railway


River Kwai


The famous Bridge


Chilling at “my” Houseboat


Sunset


Bangkok


Ib the skys over Frankfurt

a strange VMWARE Error

Author: Stephan  |  Category: Linux, Netzwerk, vmware

this morning websphere client of one of the cluster I manage stopped working with the following error.
Cannot connect to vCenter Single Sign On server. https://(FQDN or IP address of SSO):7444/ims/STSService.

The Reason was simple and curious.
The SSO Service was running a year an needs a restart because of a expired temporary certifcate.

Here is the KB article

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2122788

About Europa

Author: Stephan  |  Category: Sonstiges, Weltgeschehen

“In diesem Sommer haben wir Deutschen eine historische Chance. Die Chance, uns ausnahmsweise mal nicht wie Arschlöcher zu benehmen.”

Klaas Heufer Umlauf und Jan Böhmermann haben ein sehenswertes Video zum Thema Griechenland und Europa gedreht das ich gerne Weiterverbreite

shellshockfix for old Linuxsystems

Author: Stephan  |  Category: Linux, Netzwerk

Old Systems which are vunerable because wikipedia
shellshock aren’t that easy to update. One method is compilling bash manually ( stolen from ubuntu )

mkdir src
cd src
wget http://ftp.gnu.org/gnu/bash/bash-4.3.tar.gz
#download all patches
for i in $(seq -f "%03g" 0 25); do wget http://ftp.gnu.org/gnu/bash/bash-4.3-patches/bash43-$i; done
tar zxvf bash-4.3.tar.gz
cd bash-4.3
#apply all patches
for i in $(seq -f "%03g" 0 25);do patch -p0 < ../bash43-$i; done #build and install ./configure --prefix=/ && make && make install cd .. cd .. rm -r src

Mysql InnoDB CrashRecovery

Author: Stephan  |  Category: Linux, Netzwerk

Symptom

Mysqlserver is suddenly stopping (crashing) . Even after a restart the server ist stopping after a few seconds again.

In /var/log/daemon.log there are large mysql Hexdumps as well as the assumtion that the database is physically corrupt.

prerequirement for a successfull repair

In case of such an emergncy you need an uptodate mysqldump of all databases. If not, you have no change to fix the database without the loss of data

solution

restart Mysql with the Parameter

innodb_force_recovery = 4

drop your databases ( with drop Database ) as long till mysql starts normaly

If all Databases are part oft the problem, then you have to deinstall mysql , purge /var/lib/mysql , an then install mysql again.

At the latest mysql should run normal now. Time to use the dump to restore your databases.

Wo befinden sich die Bahn-Comfort Wagen ?

Author: Stephan  |  Category: Sonstiges, Unterwegs

Wo befinden die bahn-comfort an Zügen der Deutschen Bahn, wenn man diese benötigt ?

Normalerweise hier:

ICE1: Wagen 7,
ICE 2: Wagen 34/24,
ICE3 Wg. 36/26,
ICE-T7: Wagen 24/34,
IC: Wagen x0, zumeist der Wagen 10.

NFS mounting incorrect NFS export

Author: Stephan  |  Category: Linux, Netzwerk

Symptom

There are two NFS exports in the /etc/exports file on the NFS server. Regardless of which export is mounted, only the first export actually gets mounted.

The /etc/exports looks like this

#cat /etc/exports
/exports/export1 *(rw,sync,insecure,root_squash,no_subtree_check,fsid=0)
/exports/export2 *rw,sync,insecure,root_squash,no_subtree_check,fsid=0)

Solution

Reason for this stange behaviour is the Duplicate fsid setting. You can only have one fsid=0 per NFS Server. Change the second fsid to a small integer and everything is working as designed

# cat /etc/exports
/exports/export1 *(rw,sync,insecure,root_squash,no_subtree_check,fsid=0)
/exports/export2 *rw,sync,insecure,root_squash,no_subtree_check,fsid=1)

Die Wichtigsten 5 Paradigmen zur Fehlersuche in technischen Systemen

Author: Stephan  |  Category: Linux, Netzwerk, Sonstiges

In einer Fortbildung mit Kollegen haben wir heute die in unseren Augen die 5 wichtigsten Paradigmen bei der Fehlersiche in technischen Systemen zusammengeschrieben.

1.) Welche Komponenten sind alles beteiligt ?
2.) Kann ich den Fehler reproduzieren, wenn nein , warum ?
3.) Welche Komponenten kann ich systematisch ausschliessen?
4.) Wenn ich nicht zum Ziel komme müssen alle Prämissen geprüft werden.

und in einem Systemn, an dem mehr wie ein Techniker beteilgt ist sollte folgende Frage nicht fehlen:

Wer kann mich unterstützen ?

.htacces for conditional htauth

Author: Stephan  |  Category: Sonstiges

This is an example for an .htaccess ,which request a Password besides the request is comming from IP 127.0.0.1 or 217.10.14.27

Order deny,allow
Deny from all
AuthName "htaccess password prompt"
AuthUserFile /var/www/.htpasswd
AuthType Basic
Require valid-user
Allow from 217.10.14.27
Allow from 127.0.0.1
Satisfy Any

adblock-plus undercover – Eine Linkempfehlung

Author: Stephan  |  Category: Netzwerk, Sonstiges

Einen spannenden Fall, den ich vor kurzem via Twitter gelesen hatte , möchte ich hier weiterreichen.
Es geht um die riesigen Wirtschaftsinteressen, die hinter dem kostenlosen Browserplugin ad-block plus stehen.

http://www.mobilegeeks.de/adblock-plus-undercover-einblicke-in-ein-mafioeses-werbenetzwerk/