share my linux notes

create user to access mail server # useradd -s /sbin/nologin username # passwd username example: # useradd -s /sbin/nologin belogix # passwd belogix the user created can access to mail server account, but cannot access the system using registered username. source: http://www.cyberciti.biz/tips/howto-linux-shell-restricting-access.html

here are tutorial allowing selinux to squirrelmail operations 1. error IMAP settings displayed on page http://localhost/webmail/src/login.php type this command on terminal # setsebool -P httpd_can_network_connect=1 2. allowing squirrelmail to send mail to recipient type this command on terminal # setsebool -P httpd_can_sendmail=1

here are tutorial to enable name-based virtual hosting httpd # /etc/httpd/conf/httpd.conf locate Section 3 from the configuration file, uncomments few lines or create new lines parameter  NameVirtualHost *:80 <VirtualHost *:80>       ServerName yourfirstwebsite.domain       DocumentRoot "/var/www/html/" </VirtualHost>    <VirtualHost *:80>       ServerName yoursecondwebsite.domain       DocumentRoot "/var/www/html2/" </VirtualHost> save your configuration and please kindly restart your httpd service      

here are the notes how to enable accessing homedir for httpd enable access to home user directory # /etc/httpd/conf/httpd.conf locate UserDir section <IfModule mod_userdir.c> # # # UserDir disabled                       (comments this line) # # to allow httpd accessing homedir set selinux by typing this command on terminal # setsebool -P httpd_enable_homedirs 1 # chcon -R -t httpd_sys_content_t ~username/public_html example. #  chcon -R -t httpd_sys_content_t ~belogix/public_html  notes: ~userid directory must have permission 711 ~userid/public_html/ directory must have permission 755 check your setting by open your web browser pointed to http://ipaddrwebserver/~user/