(Or: Backblaze B2 cloud backups from a Proxmox Virtual Environment) Backups are one of those things that have a tendency to become unexpectedly expensive – at least through the eyes of a non-techie: Not only do you need enough space to store several generations of data, but you want at least twice that, since you… Continue reading It’s so fluffy!
Running Proxmox in a root-on-zfs configuration in a RAID10 pool results in an interesting artifact: We need a boot volume from which to start our system and initialize the elements required to recognize a ZFS pool. In effect, the first mirror pair in our disk set will have (at least) two partitions: a regular filesystem… Continue reading Replacing ZFS system drives in Proxmox
So I just rebuilt my little home server RAID from LVM+Ext4 to ZFS, changing the layout from RAID5 to RAID1+0, consisting of a pool of two mirrored disk sets. Since I’m a cheap bugger frugal, I still run a small HP MicroServer Gen7 (N54L) with only 2 GB of RAM, which I’ve filled up with 4 x… Continue reading Playing around with benchmarks
Introduction Using keepalived in combination with a couple of HAProxy instances is a convenient yet powerful way of ensuring high availability of services. Up until now, I’ve considered it enough to monitor the VMs where the services run, and the general availability of a HAProxy listener on the common address. The drawback is that it’s hard to see if… Continue reading Monitoring Keepalived with SNMP on Ubuntu 14.04
The other day I got a fun project at work: We need to have several users authenticate to a site using the same SSL certificate, but with logs showing which users were connected at any time. The basic premises are simple: A reverse proxy server takes calls to a specific address and sends them on… Continue reading Reverse Proxy with NTLM authentication in Linux