Linux experiments
Work in progress!
Just some random notes on various experimental installations, configurations, setups... It might give you some inspiration too
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 16.04 Xenial, 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
