WEB SERVER SETUP

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Web Server Setup

• WEB SERVER SETUP

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Web Server
Web Server Setup

• Apache Web Server is used
• Daemon is httpd (service httpd start/stop/restart)
  

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Files used by Apache
Web Server Setup

• Configuration file /etc/httpd/conf/httpd.conf
• Log files /var/log/httpd/access_log and
  /var/log/httpd/error_log
• Modules /etc/httpd/modules
• Default Document Root /var/www/html
• Default CGI Root /var/www/cgi-bin

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Apache Configuration Directives
Web Server Setup

• Server Name
• Min and Max Servers
• Document Root
• CGI Enable/Disable
• User Directory
• Directory Index
• Mime Types
• Modules
• Access Restrictions
• Secure Server
• Virtual Hosting

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Basic Settings
Web Server Setup

• Change the default value for ServerName
  www.ltyour-domain.comgt in httpd.conf and put the
  website content in /var/www/html
• Additionally you can configure Name based Virtual
  Hosting (allow more than one websites to run on
  the same server)

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Virtual Hosting
Web Server Setup

• NameVirtualHost 80
• ltVirtualHost 80gt
• ServerName server-name
• DocumentRoot path-to-virtual-document-root
• lt/VirtualHostgt
• ltVirtualHost 80gt
• ServerName server-name
• DocumentRoot path-to-virtual-document-root
• lt/VirtualHostgt

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Squid Setup

• SQUID SETUP

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What is a Web Proxy?
Squid Setup

• A proxy is a host which relays web access
  requests from clients
• used when clients do not access the web directly
• used for security, logging, accounting and
  performance

browser
proxy
web
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Obtaining Squid
Squid Setup

• Source code (in C) from www.squid-cache.org
• Binary executables
• Linux (comes with RedHat and others)
• FreeBSD
• Windows
• Pre-installed in Fedora/Enterprise Linux

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Basic Settings
Squid Setup

• Edit the /etc/squid/squid.conf file to configure
  squid
• Configuration options
• Disk Cache size and location
• Authentication
• Allowed Hosts
• Any other access restrictions (sites, content,
  size, time of access etc.) using ACL
• service squid start/stop/restart

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Squid.conf Configuration
Squid Setup

• cache_dir ufs /var/spool/squid/cache 100 16 256
• auth_param basic program /usr/lib/squid/ncsa_auth
  /etc/shadow
• acl sidbiusers proxy_auth required
• http_access allow sidbiusers
• acl our_network src 172.28.250.0/24
• http_access allow our_network
• (Note use squid z for the first time to create
  the cache directory and its subdirectories)