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Linux experiments

Work in progress!

Just some random notes on various experimental installations, configurations, setups... It might give you some inspiration too wink

Just about anything related to High Availability, Performance, Scalability, Robustness, IPv6, mail, web... is interesting.

Mostly based on Ubuntu Xenial (16.04) and Trusty (14.04)

LXC Host setup

Ubuntu 14.04 Trusty Tahr, server version.

LXC guest setup

Clustering

Groupware

Many of the components mentioned above are already blended into Kolab.

Schematic overview

Not all details included and changes all the time... digraph {

rankdir=TB; newrank=true; compound=true;

label="LXC @ Home";

Internet -> modem; modem [label="Firewall"; shape="rect"]; modem -> revproxy; modem -> smtp; modem -> imap; modem -> dns;

subgraph cluster_100 { label="MSI"; style="bold";

subgraph cluster_1 { label="Host (xenial)"; style="bold"; color="darkgreen"; maildir [shape="folder"]; webdav [shape="folder"]; ntpd; sshd; }

subgraph cluster_200 { label="LXC (trusty)"; style="bold"; color="brown";

subgraph cluster_80 { label="reverse proxy"; style="bold"; color="brown"; revproxy [label="NGINX"; shape="box3d"]; } revproxy -> lighttpd; revproxy -> apache;

subgraph cluster_3 { label="Mail"; style="bold"; color="brown"; smtp [label="postfix"; shape="box3d"]; imap [label="dovecot"; shape="box3d"]; maildir -> imap; smtp -> maildir; }

subgraph cluster_81 { label="Webmail"; style="bold"; color="brown"; lighttpd [shape="box3d"]; lighttpd -> roundcube; roundcube -> imap; roundcube -> smtp; }

subgraph cluster_82 { label="Web"; style="bold"; color="brown"; apache [shape="box3d"]; apache -> foswiki; apache -> pico; apache -> webdav; }

subgraph cluster_53 { label="DNS"; style="bold"; color="brown"; dns [label="bind"; shape="box3d"]; dhcp [label="isc-dhcp"; shape="box3d"]; }

subgraph cluster_89 { label="LDAP"; style="bold"; color="brown"; ldap [label="openldap"; shape="box3d"]; } ldap -> imap [lhead=cluster_8]; ldap -> smtp [lhead=cluster_8]; } } }

Previous setup build on top of vserver

Available Information

Topic revision: r29 - 14 Jan 2017, AdminUser - This page was cached on 17 Apr 2017 - 04:12.

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