————————

[root@vps1 ~]# vzlist  -a
CTID      NPROC STATUS    IP_ADDR         HOSTNAME
1         91 running   192.168.46.242  ServiceCT
105         49 running   69.72.234.148   asdf
107         49 running   69.72.234.150   test.test.com2

————————

This will list all the configured containers and their container ID (CTID) which is of importance to us

Assume you have to install yum on container 107

————————

[root@vps1 ~]# vzpkg install -p 107 yum

————————

!please note that If there is no yum available in the template repository it will fail.

Get the latest stable release from http://nginx.net

At the time of writing i downloaded  http://sysoev.ru/nginx/nginx-0.6.32.tar.gz

I installed the following development libraries using apt-get

apt-get install libgcrypt11-dev libpcre3-dev libssl-dev

tar -xvzf nginx-0.6.32.tar.gz

cd nginx-0.6.32

mkdir /usr/local/nginx

./configure –prefix=/usr/local/nginx –user=nobody –group=nogroup –with-http_ssl_module –with-http_realip_module –with-http_addition_module –with-http_sub_module –with-http_gzip_static_module –with-http_stub_status_module –without-mail_pop3_module –without-mail_imap_module –without-mail_smtp_module –with-md5=/usr/lib

make

make install

Thats it we now have to configure nginx and start the daemon to start serving web

Download the patch file for your php version from http://php-fpm.anight.org/

Download your php version of choice from http://php.net

Heres what i did..remember that both these project are actively updated.So by the time you read this they have better versions available

cd /usr/local/src

wget http://php-fpm.anight.org/downloads/head/php-5.2.6-fpm-0.5.8.diff.gz

wget  http://in.php.net/get/php-5.2.6.tar.bz2/from/us2.php.net/mirror

gzip -cd php-5.2.6-fpm-0.5.8.diff.gz | patch -d php-5.2.6 -p1

cd php-5.2.6

mkdir /usr/local/php

./configure –prefix=/usr/local/php –enable-fastcgi –enable-fpm –with-mcrypt –with-zlib –enable-mbstring –with-openssl –with-mysql –with-mysqli –with-gd –with-jpeg-dir –enable-gd-native-ttf –without-sqlite –disable-pdo –disable-reflection –with-curl –with-curlwrappers –enable-inline-optimization –disable-debug –disable-ipv6

make

make install

Please note that your ./configure script may produce error of missing libraries or header files.You must install these using your OS’s package manager. I use apt-cache search “the missing libs” to get this done easily

or

You have changed the SSH port for server hardening , but forgot to add the new port to the firewall rules. And after you logout from the current shell you cant login using both ports: -

Please paste the following to your browser

http://your_server_ip:2086/scripts2/doautofixer?autofix=safesshrestart

This will reset the current SSH configuration to default configuration and safely restart SSH. As you all know this only works on a Cpanel Server!

Run the following command

=====

uname -m

or

/bin/arch

====

====

[root@epsilon root]# /etc/init.d/httpd start
Starting httpd: (98)Address already in use: make_sock: could not bind to address 0.0.0.0:443
no listening sockets available, shutting down
Unable to open logs
[FAILED]
====

To fix this run the following commands

fuser -k -n tcp 443

I have also added APC for caching the php bytecode ( APC is used by Yahoo Inc ,Wikipedia.org etc among others). I will post the configuration shortly over here…  What i liked more about nginx is its simple and clean configuration which i found what lighthttpd lacks (at least from my point of view!) . I had every subproject including the wiki ,proxy, domain registration stuff running fine now except the nagios cgi

the reason being that nginx does not support cgi inherently. but there are ways to accomplish this by fastcgi;maybe i will accomplish this at a later time

As of now i am happy with my brand new web server

eg :- http://gnusys.net:1200 and you want to change the way it appears on the address bar as simply http://gnusys.net. Normally Apache won’t allow this as it is configured to work on port 80 as you all know. But there is a workaround for this issue ie by compiling Apache with mod_proxy . This module implements a proxy/gateway for Apache. I will now explain methods to compile this module in to Apache.

For a raw linux server ( with out any control panels ) you will get the mod_proxy module from the Apache source itself and if it is for any control panel specific server like Cpanel , Plesk etc just locate mod_proxy.c file and execute the follwoing command :-

/usr/local/apache/bin/apxs -cia /path/to/mod_proxy.c/file

and the compilation will be over in may be as fast as ten seconds. You can verify the compiled in module by running the command /usr/local/apache/bin/httpd -l

mod_proxy.c
proxy_connect.c
proxy_ftp.c
proxy_http.c

and you can also see the LoadModule option for mod_proxy inside httpd.conf .

ipcs -s | grep nobody | perl -e ‘while (<STDIN>) {
@a=split(/\s+/); print `ipcrm sem $a[1]`}’

There will be situations when Apache will fail because of the above reason , so you will need to just execute the above piece of code and restart Apache.

Scenario:- Add Application icon missing or grayed out

“Add New Application” icon can be missing if “Hide all greyed out buttons by default” is enabled on the Server -> Interface management page in Plesk CP.

“Add New Application” can be greyed out if some application is already installed in the domains’ DocumentRoot folder (httpdocs or httpsdocs). It is impossible to add another application in this case because of possible applications conflict.