Some short commands
List out all messages currently in queue by running:
/var/qmail/bin/qmail-qread
Count the number of messages in the queue currently by running:
/var/qmail/bin/qmail-qstat
Delete all mails from queue
/usr/local/psa/admin/sbin/mailqueuemng -D
Well to download java using wget  you can do like this
wget --no-check-certificate --no-cookies --header \ "Cookie: oraclelicense=accept-securebackup-cookie" \ http://download.oracle.com/otn-pub/java/jdk/8u73-b02/jdk-8u73-linux-x64.rpm
Well today a new problem.
I have try to install the letsencrypt  module on a plesk centos 6 server . That have python 2.6 and you will get a warning I think that is not working with python2.6 but the problem is other module.
The error’s look something like this
Fehler: Fehler bei der Installation des SSL-Zertifikats von Let’s Encrypt: Failed letsencrypt execution: /usr/local/psa/var/modules/letsencrypt/venv.gUBSl/lib/python2.6/site-packages/cryptography/__init__.py:25: DeprecationWarning: Python 2.6 is no longer supported by the Python core team, please upgrade your Python.
DeprecationWarning
Traceback (most recent call last):
File "/usr/local/psa/var/modules/letsencrypt/venv/bin/letsencrypt", line 11, in <module>
sys.exit(main())
File "/usr/local/psa/var/modules/letsencrypt/venv.gUBSl/lib/python2.6/site-packages/letsencrypt/cli.py", line 1950, in main
plugins = plugins_disco.PluginsRegistry.find_all()
File "/usr/local/psa/var/modules/letsencrypt/venv.gUBSl/lib/python2.6/site-packages/letsencrypt/plugins/disco.py", line 168, in find_all
plugin_ep = PluginEntryPoint(entry_point)
File "/usr/local/psa/var/modules/letsencrypt/venv.gUBSl/lib/python2.6/site-packages/letsencrypt/plugins/disco.py", line 31, in __init__
self.plugin_cls = entry_point.load()
File "/usr/local/psa/var/modules/letsencrypt/venv.gUBSl/lib/python2.6/site-packages/pkg_resources/__init__.py", line 2201, in load
self.require(*args, **kwargs)
File "/usr/local/psa/var/modules/letsencrypt/venv.gUBSl/lib/python2.6/site-packages/pkg_resources/__init__.py", line 2218, in require
items = working_set.resolve(reqs, env, installer)
File "/usr/local/psa/var/modules/letsencrypt/venv.gUBSl/lib/python2.6/site-packages/pkg_resources/__init__.py", line 835, in resolve
raise VersionConflict(dist, req).with_context(dependent_req)
ContextualVersionConflict: (cryptography 1.1 (/usr/local/psa/var/modules/letsencrypt/venv.gUBSl/lib/python2.6/site-packages), Requirement.parse(‘cryptography>=1.3’), set([‘PyOpenSSL’]))
The problem actually is the crypthography module.
So the fix is
cd /usr/local/psa/var/modules/letsencrypt/venv/bin
./pip install –upgrade cryptography
Hello
Well today I want to explain about my raid experience.
I have to setup a hybrid server on hetzner. I setup the ssd on raid1 using installimage and those other hard drive I have create a raid from linux and mounted them on /raid1 directory .
However after reboot, my /dev/md4 disappear and a /dev/md127 appear.
To create the raid I have use this
fdisk /dev/sdc and /dev/sdd . Make a primary partition and set it up as fd software raid partition .
mdadm –create /dev/md4 –level=1 –raid-devices=2 /dev/sdc1 /dev/sdd1
mkfs.ext4 /dev/md4
mkdir /raid1
mount /dev/md4 /raid1
And insert this into fstab file
/dev/md4 /raid1 ext4 noatime,rw 0 0
So how to fix this ?
First I try to input some information into /etc/mdadm.conf but without luck . It appear that the linux read this late and the centos/ubuntu initalize this from initrd . So in order to fix this some steps have to be done .
After reboot try to fill the information into mdadm.conf with
ARRAY /dev/md/4 UUID=b3c33fe5:3b078681:e2776e37:4f9fd991
The UUID I have taken from
mdadm –detail /dev/md4
First unmount and stop the raid
mdadm –stop /dev/md127
After this assemble it again with your desire
mdadm –assemble /dev/md4 /dev/sdc1 /dev/sdd1
After this I have copy the
/boot/initramfs-2.6.32-573.3.1.el6.x86_64.img to a backup file ( initramfs-2.6.32-573.3.1.el6.x86_64.img-back ) in case something go wrong.
After this run
dracut –force
If is centos 5 or less you have to copy initrd file and to recreate use
mkinitrd -f -v /boot/initrd-$(uname -r).img $(uname -r)
On ubuntu you have to run
sudo update-initramfs -u
And restart the server.
I am trying to install geoip using
pecl install geoip
And I get this error “ERROR: `/var/tmp/geoip/configure’ failed”
The solution is to install
yum install geoip-devel
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