I hate setting up new repo’s…
If you have a local repo that you would like to share, on the remote server create a new directory (with correct permissions).
then, cd into the dir
and type
git --bare init
or
git --bare init --shared=group
on the local machine you can now push your copy up, like this. (make sure you are in the directory)
git remote add origin username@remote.server.com:/file/directory/
git add .
git commit -m "commit change"
git push origin master
Great post instructing how to lock down an NFS server
http://nxlinuxadmin.blogspot.com/2010/05/iptables-for-nfs-server.html
Download repo
wget http://yum.pgrpms.org/reporpms/9.0/pgdg-centos-9.0-2.noarch.rpm
Install repo
rpm -i pgdg-centos-9.0-2.noarch.rpm
Install Postgres
yum install postgresql90-server
Initialise DB
service postgresql-9.0 initdb
Start Service
service postgresql-9.0 start
Turn levels on
chkconfig --levels 235 postgresql-9.0 on
Edit conf file
nano /var/lib/pgsql/9.0/data/pg_hba.conf
Change IDENT to TRUST at bottom of file (all fields)
Edit postgresql.conf
Change listen 'localhost'
to
listen '*'
If using phppgadmin, you need to edit config.inc.php and set security to false to use the web interface.
To restore a DB
# psql -U
wkhtmltox is a great piece of kit to convert webpages to PDF format.
It is – however – an absolute Pita to install, as there are minimal resources on the net for installing this onto a Linux Server.
The first step is to download both the static library
libwxhtmltox
and the wkhtmltox static binary
wkhtmltopdf
Both of these can be downloaded from the Google Code repository found HERE Download the correct files for your server (i386 or amd64).
The will be packed in the unusal bunzip2 format, to exact type
bunzip2 #filename#
Then tar the file out with
tar xvf #filename#
copy the wkhtmltox directory to /usr/local/include
copy the lib/libwkhtmltox.so to /usr/local/lib/
unpack wkhtmltopdf and copy to a dir which is symlinked so you can use the CLI version from anywhere in your shell.
To add the PHP-extension requires a little more trickery.
Firstly download the source from HERE
unpack and run these commands
phpize
./configure
make test
make install
If the make test fails, it usually will mean that php was unable to load the library, so you need to add the following .
Go to
/etc/ld.so.conf.d/
and edit (or create if it doesn’t exist)
usr-local-lib.conf
add the following path
/usr/local/lib
then in your php.ini file add
extension=phpwkhtmltox.so
restart your web server, and check your phpinfo() to make sure the phpwkhtmltox extension has been loaded.
If you are installing on 32bit Centos 5.x you may have a very hard time trying to figure out why the phpize/configure fails. It usually means that you don’t have fontconfig installed, or it is an older version.
If you want to produce PDF’s from a site that is SSL enabled, you will fail… miserably… WKHTML 0.11 breaks UNLESS openssl-devel package has been installed… I lost 4 years of my life and now have a head full of grey hair. Hopefully this little tid bit of information helps some other poor soul.
You may also find that the rendered PDF’s have garbled boxes, you will need these fonts installed – on Centos
yum install urw-fonts
dscacheutil -flushcache
master:~# fdisk /dev/xvda
Command (m for help): p
Command (m for help): d
Partition number (1-4):<enter partition number>
Command (m for help): n
Command action
e extended
p primary partition (1-4): p
Partition number (1-4): <enter partition number>
First cylinder (32-6527, default 32):
Last cylinder or +size or +sizeM or +sizeK (32-6527, default 6527):
Command (m for help): t
Partition number (1-4): <enter partition number>
Hex code (type L to list codes): 8e
Command (m for help): p
Command (m for help): w
The partition table has been altered!
master:~# reboot
when it has rebooted, you just have to resize the filesystem with..
master:~# resize2fs /dev/xvda1
master:~# reboot
Resize the SWAP Disk like this:
<run through the regular resize for a disk and reboot>
master:~# swapoff
master:~# cfdisk /dev/swap-partion
master:~# mkswap -c /dev/swap-partition
master:~# swapon -a
I spent an age trying to work out why i couldn’t check out my code from a SVN REPO.
So turns out Xcode will not allow you to download from a SVN source that uses a untrusted SSL certificate.
You would get an error similar to: The certificate is not issued by a trusted authority. Use the
fingerprint to validate the certificate manually!
So how to work around this?
Open up a terminal window, and begin a manual attempt at downloading the SVN repo with something like this..
svn co https://........
you will then be prompted to reject, accept or permanently trust this certificate..
Hope this helps some poor soul..
dd if=/dev/zero of=test bs=64k count=512 oflag=dsync
The number one bottle neck for a VPS is Disk I/O. The easy way to find out the quality of your VPS’s disc I/O is by issuing the above command which will copy a 32mb file, outputting the time taken and average transfer speed…
Centos PCRE repo is 6.6, and cannot be YUM REMOVED without removing hundred of dependancies…
I needed to install PCRE with unicode support which meant compiling my own package.
First you need to install all the correct libs
yum install gcc-c++
then download latest pcre from
http://www.pcre.org/
unpack and configure
./configure --prefix=/usr
--docdir=/usr/share/doc/pcre-8.10
--enable-utf8
--enable-unicode-properties
make
make check
make install
the libraries will be installed to /usr/lib and you will need to add a new path for your DSO loader create a file called pcre.conf in the directory
/etc/ld.so.conf.d
and insert the path
/usr/lib
save and close and update the cache by running
ldconfig
restart your web server and check phpinfo that your PCRE module has been updated to 8.11 (or latest).
Rotating your log files will save you a bunch of space from bloated web logs growing out of control. Logrotate is easily customisable to suit any needs.
To force logrotate to rotate out of schedule use the f flag, and to make it output to screen, use V for verbose ie.
/usr/sbin/logrotate -vf /etc/logrotate.conf
Below is an excerpt for Logrotate configured with lighttpd. you will need to reload your specific web server with its own reload command.
nano /etc/logrotate.conf
# rotate log files weekly
weekly
# keep 4 weeks worth of backlogs
rotate 4
# create new (empty) log files after rotating old ones
create
# uncomment this if you want your log files compressed
#compress
# RPM packages drop log rotation information into this directory
include /etc/logrotate.d
# no packages own wtmp -- we'll rotate them here
/var/log/wtmp {
monthly
minsize 1M
create 0664 root utmp
rotate 1
}
# system-specific logs may be also be configured here.
/srv/www/mywebsite.com/logs/*log {
rotate 14
daily
compress
create 0664 lighttpd lighttpd
delaycompress
sharedscripts
postrotate
/sbin/service lighttpd reload > /dev/null 2>/dev/null || true
endscript
}
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