Category Archives: network

RackTables: Permissions

Once you figured out how it works, everything is easy – right? As it took me some minutes and some googl’ing to find out how the permission system (Main page -> Configuration -> Permissions) in Racktables work, here is my … Continue reading

Posted in Infrastructure, network | Tagged , , , | 2 Comments

Datacenter in a box

Today I want to tell you something about my “datacenter in a box” setup, that I’m currently running on my Root Server at Hetzner. The base system is a bare metal EX root server with 32GB RAM and 2x2TB hard … Continue reading

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Trap: failover bonding and miimon on directly connected machines

For HA reasons, I setup a cluster of two nodes that are using “bond0” for the external networks and “bond1” for the communication between the two hosts. As I setup the machines in the standard way, the bonding module options … Continue reading

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Running csync2 with different hostnames

The paper for csync2 is a bit unclear to me, when it comes to hosts with different hostnames for two or more interfaces. I often ended up in trying to solve my problem in the following way, that luckily solves … Continue reading

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LDAP with TLS and CA certificates

If you try to setup your own CA, you might notice that not all applications support your new, self signed certificate out of the box. One example I like to show here is Apache AuthLDAP. Prerequisites: installed your certificates in … Continue reading

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DHCP failover with LDAP support

Providing important services as redundant as possible is always a good idea. Providing a fail-over and load-balancing solution for DHCP if the most parts of your DHCP configuration is stored inside an LDAP database is a bit tricky, but if … Continue reading

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Enabling IPv6 for rsync daemon

I’m running an rsync daemon on rsync.opensuse-education.org to allow mirror servers to download packages and ISO images via this nice protocol. As openSUSE-Education will be participating on the IPv6 day, I thought it might be a good idea to let … Continue reading

Posted in network | 3 Comments