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Category: Centos
- Qmail SMTP Relay
If you have a Qmail server and you want to allow a specific IP to send emails (relay) through Qmail all you have to do is to add in /etc/tcprules.d/tcp.smtp :
IP:allow,RELAYCLIENT=”",RBLSMTPD=”",NOP0FCHECK=”0″,DKSIGN=”/var/qmail/control/domainkeys/domain.com/dkim1″
Where IP is the IP of your remote email server. You can even specify something like : aaa.bbb.ccc.:allow,RELAYCLIENT=”"
After this you have to run :
tcprules /etc/tcprules.d/tcp.smtp.cdb /etc/tcprules.d/tcp.smtp.tmp < /etc/tcprules.d/tcp.smtp
- Nginx + php 5.2.17 + php-fpm
Download the needed packages and store them in /usr/src:
http://us.php.net/distributions/php-5.2.17.tar.gz
http://php-fpm.org/downloads/php-5.2.17-fpm-0.5.14.diff.gz
http://nginx.org/download/nginx-1.1.0.tar.gz
Then run :
tar -xvzf php-5.2.17.tar.gz
gzip -cd php-5.2.17-fpm-0.5.14.diff.gz | sudo patch -d php-5.2.17 -p1
cd php-5.2.17
./configure --enable-fastcgi --enable-fpm --with-mcrypt --with-zlib --enable-mbstring --enable-pdo --with-curl --disable-debug --with-pic --disable-rpath --enable-inline-optimization --with-bz2 --enable-xml --with-zlib --enable-sockets --enable-sysvsem --enable-sysvshm --enable-pcntl --enable-mbregex --with-mhash --with-xsl --enable-zip --with-pcre-regex --with-gd --without-pdo-sqlite --with-pdo-mysql --without-sqlite --with-jpeg-dir=/usr/lib --with-png-dir=/usr/lib --with-mysql --enable-bcmath --enable-calendar --enable-exif --enable-ftp --with-gettext --with-imap --with-mysqli --with-openssl --with-kerberos --with-imap-ssl --enable-dbase --with-gmp --enable-shmop --enable-wddxmake all install
Note that you can add –prefix to install the binaries in a different location than the default one.
After compilation is done :
strip /usr/local/bin/php-cgi
cp sapi/cgi/fpm/php-fpm /etc/init.d/
chmod +x /etc/init.d/php-fpmcp /usr/src/php-5.2.17/php.ini-recommended /usr/local/lib/php.ini
mkdir /etc/php/
ln -s /usr/local/lib/php.ini /etc/php/php.ini
ln -s /usr/local/etc/php-fpm.conf /etc/php/php-fpm.conf
Make sure you edit /etc/php/php-fpm.conf and set the proper user/group (and permissions if its the case).
Then compile Nginx:
tar zxvf nginx-1.1.0.tar.gz
./configure --sbin-path=/usr/local/sbin --with-http_ssl_module --without-mail_pop3_module --without-mail_imap_module --without-mail_smtp_module --with-http_stub_status_module
make && sudo make install
The same you can modify the –prefix here.
- Plesk 10 nginx reverse proxy configuration in front of Apache
Plesk 10 nginx reverse proxy configuration
On older Plesk version (
websrvmng –set-http-port –port=8080
Starting with Plesk 10 this is not so easy since you have to edit a php file called /usr/local/psa/admin/conf/templates/default/domain/domainVirtualHost.php. In my case instead of :
domain->physicalHosting->ipAddress->address ?>:server->webserver->httpsPort : $VAR->server->webserver->httpPort ?>>
ServerName "domain->asciiName ?>:server->webserver->httpsPort : $VAR->server->webserver->httpPort ?>"I’ve set :
<VirtualHost <?php echo $OPT['ipAddress']->escapedAddress ?>:<?php echo $OPT['ssl'] ? 8043 : 8080 ?>>
ServerName “<?php echo $VAR->domain->asciiName ?>:<?php echo $OPT['ssl'] ? 8043 : 8080 ?>”
Where 8043 will be the new https port and 8080 will be the http port.
After this change I had to run :
/usr/local/psa/admin/bin/httpdmng –reconfigure-all
Note that this is only for Plesk 10.x. On 9.x we used to have
/usr/local/psa/admin/sbin/websrvmng –reconfigure-all
After this make sure that the Apache server has set in its configuration files (/etc/httpd/conf/httpd.conf) Listen 8080 instead of Listen 80. Same thing for the /etc/httpd/conf.d/ssl.conf file, Listen 8043 instead of Listen 443.
Then you need to install nginx (yum install nginx) and download this zip file that these guys provided http://www.grafxsoftware.com/download/nginx/nginx_setup.zip. Furthermore you can check their http://www.grafxsoftware.com/faq.php/HOW-TO-configure-PLESK-with-NGinx-proxy-reverse/1/1/.
Once downloaded run:
sh generate_nginx_conf.sh
Verify with “nginx -t” that there isn’t any error and finally restart the involved services :
service httpd restart
service nginx restartMake sure that 8043 and 8080 accept connections. (Note that its not necessary to change the https port).
- Add new storage to VM in XenServer
Just type :
xe vm-disk-add disk-size=5GiB vm=node1
Then in node1 if you do “cat /proc/partitions” you should see the new storage.
- Centos 6.0 XenServer templates
To add templates for CentOS 6.0 you can use the RHEL 6.0 templates:
For CentOS 32 bit run:
xe vm-clone uuid=`xe template-list name-label=Red\ Hat\ Enterprise\ Linux\ 6\ \(32-bit\) –minimal` new-name-label=”CentOS 6.0 (32-bit)”
For CentOS 64 bit run:
xe vm-clone uuid=`xe template-list name-label=Red\ Hat\ Enterprise\ Linux\ 6\ \(64-bit\) –minimal` new-name-label=”CentOS 6.0 (64-bit)”
- Delete template XenServer
Sometimes XenServer doesn’t allow you to delete templates from the XenCenter GUI or even the CLI. Here is how to delete templates from the CLI in three steps:
Run:
xe template-list name-label=CentOS\ 5.6\ \(32-bit\)
And remember the uuid:
uuid ( RO) : 0ce71430-d7ef-00f8-07d9-4166953c4f19Then:
xe template-param-set other-config:default_template=false uuid=0ce71430-d7ef-00f8-07d9-4166953c4f19
Then :xe template-param-set is-a-template=false uuid=0ce71430-d7ef-00f8-07d9-4166953c4f19
And then:
xe vm-destroy uuid=0ce71430-d7ef-00f8-07d9-4166953c4f19 - Centos 6 released
Finally after almost one hear since RHEL 6.0 was released now Centos 6.0 is available to download.
Check Release notes : http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.0
and official announcement:
http://lists.centos.org/pipermail/centos-announce/2011-July/017645.html