This is the first draft of the structural design behind the new backup solution called b4f. Currently the main goal is to have a system for encrypted off-site backup allowing for incremental backups. This will be a slightly technical post, but remember that anything, even the goals, can change.
Archive for the ‘Blog’ Category
Measuring delay in webserver response
January 15th, 2010
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This is how to measure a webserver delay from the request to the first response. Thus it will only measure the time within the server, not the network delays. It is done using tcpdump to collect the data and a program I have written to extract the response time.
Fight the itch
December 17th, 2009
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I have been writing a (yet another) blog platform. This one using simple python and its wsgi interface. However the most interesting part, and why I did write it in the first place, is the static files generated. My goal was to have a robust platform that easily could be moved without servers and not [...]
Restricted ssh/rsync access for backups
July 12th, 2009
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My first setup of a remote backup system using rsync looked somthing like this: backupserver# rsync -uav root@remote:/ /mnt/backup/remote/ This was automated using cron and ssh keys. However with this setup the backupserver is granted more acces than needed. In short if the backup server account is compromised the remote server will too.
Graphical statistics for OpenVZ servers
March 21st, 2009
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I’m having a VPS running on OpenVZ that I most of the push to the limit. On usual computers the most significant resource is the memory usage, however on a VPS like this there are a lot of other resources running out.
