[[PageOutline]] = Operational structure of Tachanka! = == Colocation level, configuration + maintenance of hardware == Tachanka maintains a couple of servers distributed throughout data centers around the world. Most of these servers are configured to host virtual private servers (VPS), currently implemented using [http://linux-vserver.org linux-vserver]. This allows for complete isolation of separate software systems with the lowest possible hardware overheads. In other words, a high emphasis is placed on security whilst optimising the performance of the services we provide. == Server level, configuration and maintenance of host systems == The host collective, Tachanka, is made up of members of the many involved collectives. Each of us knows at least two others involved; there is a strong web-of-trust, with the Tachanka servers acting as a cross-pollination ground for inter-activist education and support. The base systems are maintained with a minimum of services and a tight security policy; all systems run [http://www.debian.org Debian GNU/Linux]. == Virtual server level, configuration and maintenance of guest OS's (VPS) == There are a few groups that currently run their own individualised virtual private servers. == Service level and hosted applications == === DNS === We host caching name services for the hosted virtual private servers, as well as authoritative name services. === Mail/Lists === - Email is currently not provided by Tachanka, but it is possible to get accounts via some of the collectives involved: look at [http://wiki.aktivix.org aktivix] for further details. - Lists are provided on one of the VPS. We are able to provide individual lists through some of the collectives involved ([http://wiki.aktivix.org aktivix]). If you wish to provide multiple lists, it may be possible to set them up under a new domain name. Please [wiki:PublicContact contact] us for more information. === Drupal === One of the VPS is providing a Drupal farm. This is currently being used to host a few small [http://www.indymedia.org Indymedia] web sites. === MySQL/Databases === MySQL databases for the various content management systems are provided securely via a VPS on the internal interface only; there are daily, encrypted backups, and the data is only accessible to the application which is using it. === Munin and Nagios Monitoring === All VPS's are monitored by the Tachanka collective via [http://munin.linpro.no munin] graphs and [http://www.nagios.org/ nagios] service monitoring. Tachanka also provides munin monitoring for some other collectives. === Tor === Tachanka believes that anonymous access to the internet is a right, rather than a privilege, hence we provide a [http://tor.eff.org Tor] anonymous proxy server. === APT repository proxy cache server === For faster software downloads and in order to reduce bandwidth usage and to cut costs, all virtual private servers hosted with Tachanka have access to a locally hosted APT package repository. === Static html mirror server === Tachanka supports the [http://www.indymedia.org Indymedia] network by hosting some mirrors of different sites. This server also hosts some websites of individuals and small projects. ---- [wiki:PublicAbout about] | [wiki:PublicContact contact] | [wiki:PublicDonate donate] | [wiki:PublicServices services] | [wiki:PublicSolidarity solidarity]