50 recent changes in HomeInfra Web retrieved at 13:02 (GMT)

Better and faster (de)compression than gzip... soon the new default https://github.com/facebook/zstd

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

Brotli Aim is to replace gzip when it comes to HTTPS compression. Major browsers already support it, but only over TLS/SSL. Accept Encoding: deflate,gzip, br Brot...

Google "reinvented" the good old gzip... Read more at https://github.com/google/zopfli. Backwards compatible with gzip/gunzip. Zopfli provides a better compressio...

GlusterFS http://www.gluster.org/ Gluster in containers https://www.flockport.com/build distributed storage nodes with lxc and gluster/ Create node in LXC mknod ...

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Scalable (incoming) mail cluster This is one way to build a scalable mail infrastructure. Besides GlusterFS, the performance is pretty good. "Business Case" for t...

NGINX as compressor, TLS offloader, loadbalancer Schematic overview digraph { rankdir=TB; newrank=true; compound=false; browser nginx ...

ZPAQ http://mattmahoney.net/dc/zpaq.html http://mattmahoney.net/dc/10gb.png Great compression, but slow. The best feature is the possibility to add only the "diff...

Previous setup (until August 2015) Old Toshiba laptop as server, using Debian Squeeze as host OS and vserver containers running Wheezy. digraph { rankdir=TB; ...

HomeInfra Web Preferences Appearance * Set WEBBGCOLOR = #efefef * web specific background color, current color * Set SITEMAPLIST = on * set t...

DNS "cluster" DNS is HA by default... digraph G{ rankdir=LR subgraph cluster_0 { label = "Master" bind; zonefile1 shape=note z...

digraph { rankdir=LR; message color="red", shape="signature" ; Maildir color="darkgreen",shape="folder" ; message haproxy color="red",style="bol...

Blackhole routing Info at: https://www.spamhaus.org/drop/ Run this script from /etc/cron.daily on your routers/servers and it will reduce malicious traffic a lot....

/etc/ntp.conf # Some nearby ntp pool servers server nl.pool.ntp.org server be.pool.ntp.org server de.pool.ntp.org server uk.pool.ntp.org # My extra servers server...

WebDAV on Apache 2.4 Make sure the modules dav, davfs and auth_basic are enable. For Debian/Ubuntu distributions execute a2enmod dav a2enmod dav_fs a2enmod auth_b...

Kalob integrates (web)mail, calendar, todo, filesharing... In basis it is a combination of well known and solid opensource software, including Postfix, MySQL and...

Disk /etc/sysctl.conf vm.dirty_writeback_centisecs = 1500 vm.dirty_expire_centisecs = 9000 vm.dirty_background_ratio = 20 vm.dirty_ratio = 80 vm.swappiness = 5 Wh...

more info https://help.ubuntu.com/community/FilesystemTroubleshooting Read only test (fast) fsck.ext4 f k c C0 /dev/sdaX Non destructive read/write test... sl...

HAProxy is the key element for the mail cluster. /etc/haproxy/haproxy.cfg global log /dev/log local0 log /dev/log local1 notice chroot /var/lib/haproxy stats ...

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Installation/creation Container creation lxc create n container name t download d ubuntu r trusty a amd64 Creating a lightweight clone lxc clone s Creat...

more info at https://help.ubuntu.com/lts/serverguide/openldap server.html Server apt get install slapd ldap utils initial configuration dpkg reconfigure slapd C...

Exim specific install # apt get install exim4 daemon light openssl ca certificates tools /usr/share/doc/exim4 base/examples/exim gencert update exim4.conf /etc/ex...

http://en.open lamp.com/authenticate emails with dkim on debian or ubuntu linux/ Generate the keys cd /etc/exim4 openssl genrsa out dkim.private 1024 openssl rsa...

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