Linux Server Details

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**Details, Installation, & Set-up of Debian based Linux Servers**


===== Server set-up and Associated Details=====

==== Typical SERVER SET-UP ====
  * [[Base Install of Debian Sarge]] / [[Base Install of Debian Squeeze]]
  * #or [[Base Install of Debian Sarge with RAID]]
  * [[Change from DHCP to Manual IP]]
  * [[How to obtain Packages using APT]]

==== Range of SERVICEs, and INSTALLATION HOW-To's ====
All these services are based on a Debian base install using the current stable Debian Sarge, unless specifically stated otherwise. Similiarly, all these services are installed from Debian Packages from the Stable Repository using [[How to obtain Packages using APT|APT]], unless specifically stated otherwise. It may be the case that the order of installation, or sequence of installing various packages may change, however APT & Debian Packages will take care of *any* dependencies.

A Service is typically one which typically requires ROOT permission to install, runs as a Special User on the server, starts up at boot time, and provides a key base service, with which applications run on top of.

  - [[Iptables Firewall|Manual setup of Iptables Firewall rules & startup scripts]]
  - [[Shorewall Firewall]]
  - [[DNS - Bind9]]
  - [[Apache2_SSL_PHP5_MySQL5]] <del>[[Apache 2 & SSL - PHP4 - MySQL 4.1]] old Etch setup</del>
  - [[Postfix SMTP]]
  - [[Courier IMAPS Server - Maildir]]
  - [[Secure Outgoing SMTP via Postfix, Courier, TLS and SASL]] -- 7.5 - [[Authed Outgoing SMTP with Postfix and MySQL]]
  - [[Squid Proxy]]
  - [[Samba]]
  - [[Snmpd & mrtg]]
  - [[Munin Statistics]]
  - [[Netsaint / Nagios]]
  - [[ntp - Network Time Protocol]]
  - [[ProFTPd Server]]
  - [[Quota]]
  - [[SMART]]
  - [[NFS]]
  - [[Anyterm]]
  - [[Ajaxterm|Ajaxterm - Web SSH Terminal, alternative to Anyterm]]
  - [[Trac and SVN]]
  - [[Mailman]]
  - [[Dante Socks Server]]
  - [[Spamassassin setup and config]]
  - [[Duplicity - secure incremental backup]]
  - [[Procmail - setup with postfix]]
  - [[Wine]]
  - [[openvpn]]
  - [[PPTP - vpn]]
  - [[smokeping]]
  - [[xfce-vncserver|Graphical Desktop and VNCserver]]
  - [[Reverse Proxy with apache mod_proxy]]

==== APPLICATIONS INSTALLED ====
An application is one which can be installed by a User with limited permissions, runs ontop of a set of required services, e.g. MySQL, PHP, and is only run when accessed/required by a user.

  - [[Squirrelmail]]
  - [[Webalizer]]
  - [[Awstats]]
  - [[Mediawiki]]
  - [[sun_jdk]]
  - [[Rootkit Detection]]
  - [[snort]] Network Intrusion Detection
  - [[vnstat]] Network Traffic Logger and Monitor
  - [[roundcube]]
  - [[planet]] RSS News Feed Aggregator

==== Typical VHOSTS ====
VHOSTS - Virtual Hosts, are typically Web addresses which apache handles and serves out. Virtual Hosts require a DNS entry pointing to an IP Address where Apache is located. See the example of setting up these [[Apache 2 & SSL - PHP4 - MySQL 4.1|VHOSTS in Apache]].

  - http://burkesys.com
  - http://wiki.kartbuilding.net
  - https://mail.burkesys.com
  - http://www.kartbuilding.net
  - http://monitor.burkesys.com


===== Virtual Server (XEN) set-up and Associated Details =====

==== Xen and Debian Squeeze ====
=== Setup of Xen Xen 4.0.1 on Debian Squeeze ===
  * [[Xen 4.0.1 on Debian Squeeze dom0 and domU]]


==== Archive ====
=== Setup of Base Hosting Server with XEN3.0 (dom0) ===
There are a number of routes that can be taken when installing Xen on a Server, in order to prepare it to run Virtual Servers. These routes/options are as follows:
  - Use [[Debian Etch Xen Install]] -- The current working option with no problems.
  - Use [[XenDebianBackports|Debian Backports]] -- The chosen option, as it worked with least hassle.
  - Use [[Xen Binaries]]
  - Use [[Xen Source and Compiling]]
  - Use Debian Testing (etch) Packages

=== Modify XEN (dom0): Resize Partitions, RAID1 & LVM Howto's ===
  - [[Resize & Create Partitions in Debian]]
  - [[RAID 1 and Xen (dom0)]]
  - [[LVM on XEN (dom0)]]

=== Create & Manage XEN Virtual Servers (domU) ===
  - [[Create DomU]]
  - [[Create Centos5 DomU on Debian Etch Dom0]]
  - [[Manage XEND]]
  - [[Ongoing Experiences with Xen]]
  - [[Resize/Increase the Size of a File Based DomU Xen Filesystem]]

=== Streamlining Xen ===
  * Automatic domU Installs using [[xen-tools]]

=== Setup of New Xen Server ===
  - [[Install and Config Base OS]]

=== Upgrade of Xen through the years ===
  * [[Moving from Xen Backports to Debian Etch Xen Packages - Attempt1]]
  * [[Upgrade domU to Lenny]]
  * [[Upgrade Xen on dom0]]

=== Setup of Xen 3.2 (dom0) on Debian Lenny ===
  * [[Basic Setup of Xen3.2 32bit]]
  * [[Setup of Windows domU on Debian lenny dom0]]

=== Xen Networking ===
  * [[Xen Networking]]



===== KVM Setup =====
  * [[KVM Setup on Debian Jessie]] | [[KVM Setup on Debian Squeeze]] (<del>[[KVM Setup on Debian Lenny|Old Lenny KVM Setup]]</del>)
==== Setup of KVM Guest VMs ====
  * [[Setup of Windows Server 2008 Guest on KVM]]
  * [[Migrate Xen based VM (domU) to KVM based VM]]

==== Other KVM Info ====
  * [[mount kvm file based image (disk.img) on host computer]]
  * [[increase size of raw disk image with partitions]]
  * [[Provide Boot Menu options for VMs accessible using VNC]]
  * [[IPv6 Setup on KVM Host and Guest VMs]]

===== Linux Tips, Tricks & Commands to be Remembered:=====

  * _ [[alias]]
  * _ [[apache]]
  * _ [[awstats]]
  * _ [[backup mysql database script]]
  * _ [[backup via web download]]
  * _ [[bash]] - shell tips and tricks
  * _ [[benchmark tests]]
  * _ [[cat]]
  * _ [[chmod]]
  * _ [[chown]]
  * _ [[chsh]]
  * _ [[corkscrew - ssh_over_https]]
  * _ [[crontab]]
  * _ [[debian logs]]
  * _ [[dict]]
  * _ [[dns]] - General Usage Tips
  * _ [[dnstunnel]] - Tunnel SSH over DNS
  * _ [[ffmpeg]] - Audio and Video Editing
  * _ [[File Permissions]]
  * _ [[find]]
  * _ [[Firefox and Java Plugin]]
  * _ [[FTP]]
  * _ [[getent]]
  * _ [[gnupg]]
  * _ [[grep]]
  * _ [[HEAD]]
  * _ [[hellanzb]]
  * _ [[history]]
  * _ [[htop]]
  * _ [[ifup-ifdown]]
  * _ [[iptables_forward]]
  * _ [[irssi|IRC and irssi]]
  * _ [[kill, killall]] - End a Process
  * _ [[locale]]
  * _ [[ldap]]
  * _ [[ls]]
  * _ [[lsof]]
  * _ [[lspci]]
  * _ [[mail - mutt etc|mail etc.]]
  * _ [[memory management]]
  * _ [[MySQL]]
  * _ [[Nikto]] - Web Server and CGI Scanner Version
  * _ [[ncftp]]
  * _ [[nmap]] - Network exploration tool and security scanner
  * _ [[oom]] - Out of Memory
  * _ [[Password Audit & Securing]]
  * _ [[pine, pine set-up & pinegpg]]
  * _ [[port forwarding]]
  * _ [[procmail]]
  * _ [[rsync]]
  * _ [[suPHP]]
  * _ [[pwgen]]
  * _ [[rename]]
  * _ [[scp]]
  * _ [[screen]]
  * _ [[sed]] - replace text in files via bash
  * _ [[ssh]]
  * _ [[sshkeys]]
  * _ [[Using Trac & Svn|svn & trac]]
  * _ [[users_manage]]
  * _ [[script]] - Record/Log a SSH terminal Session
  * _ [[search script]]
  * _ [[Secure Backup]]
  * _ [[sendmail]]
  * _ [[smbmount]]
  * _ [[sqlite]]
  * _ [[sshfs]] - Mounting a remote directory over ssh
  * _ [[strace]]
  * _ [[synergy]]
  * _ [[sysv-rc-conf]]
  * _ [[tar]]
  * _ [[tail]]
  * _ [[tcpdump]]
  * _ [[vi/vim]]
  * _ [[vnstat]] - Network Traffic Logger and Monitor 
  * _ [[vodasms]] - send Text Messages
  * _ [[wall]] - write a message to all users
  * _ [[wc]]
  * _ [[write]]
  * _ [[zgrep]]
  * _ [[zip]]


====Scripts OF THE TRADE====
  * [[Convert mbox to Maildir for all users]]
  * [[Find & Remove an old SSH Key for all users]]
  * [[Find log files and copy to a folder]]
  * [[Search for all Processes and kill them all]]
  * [[links to scripts and cmdline tricks]]

==== Tips and Tricks ====
  * [[mount an ISO (CD Image) on linux]]
  * [[create favicon.ico]]
  * [[Limit User resources]]
  * [[Check when a fsck is due]]
  * [[Obtain root shell after booting]]
  * [[Resize raid array and create second array]]
  * [[Fork bomb - DOS a Linux Server via command line]]
  * [[Automate taking screenshots of webpages]]

====TOOLS OF THE TRADE====
  * [[http://wiki.kartbuilding.net/putty.exe|putty]]
  * [[http://wiki.kartbuilding.net/winscp.zip|winscp]]
  * [[http://wiki.kartbuilding.net/vncviewer.exe|vncviewer]]

==== Remove Management of Servers ====
  * [[IP KVM Serial Console Switch]]

===== Upgrades and Other Installations =====

==== Upgrading Debian Sarge to Debian Etch ====
  * [[How to Upgrade Sarge to Etch via apt]]
  * [[X Server Upgrading Issues]]
  * [[Minor snmp Issue]]
  * [[smartd and smartmontools problem/issue]]
  * [[Syntax Highlighting Problems with vim]]
  * [[nagios upgrade issue]]
  * [[Squid Issue, Etch and a 2.4 Kernel]]
  * [[Recommended Packages to Install|Recommended Packages to Install after Upgrading to Etch]]
  * [[Issue with mounting root on a raid1 partition]]

==== Upgrading Debian Etch to Debian Lenny (5) ====
  * [[Upgrade Trac]]
  * [[Further issues upgrading to Lenny]]

==== Upgrading Ubuntu Hardy LTS to Ubuntu Lucid LTS ====
  * [[dist-upgrading hardy to lucid]]

==== Setting up a Secure and Stable Linux OS ====
  * [[Tomfmason_Fedora_Server_Setup|Cleaning and Securing a Fedora install]]
  * [[linode-server-setup]]

==== Setup and config of Debian Bullseye as LAMP and Mail Server ====
  * [[setup-config-debian-bullseye]]

==== Work for the Future:====
  * Secure Backup (gpg) across Cluster - Done. See: [[Duplicity - secure incremental backup]]
  * Roll Out LDAP
  * [[Try and install vmware on domU to run Windows]]
http://wiki.sourcemage.org/Install_under_Xen