tl;dr: use $Format:%h$ in a file and mark for substitution in downloaded archives with 'file export-subst' in .gitattributes
Trying to implement some sort of automatic versioning based on your git commits or tags is not as easy as it should seem. The idea is to use a feature built into the revision control system to modify your project files and increment version counters automatically or embed commit information into software builds - in my case: the --version output of Go applications built with cobra.
Ideally, the solution should not require executing some hacked-together scripts or configuring overly many settings on developer machines, yet still embed version information when a user donwloads a release to build locally.
read on »
tl;dr: running speedtest-cli with a cronjob and plotting the results
I am supposed to have a 500 Mbps internet line at home. Last week it really didn’t feel like that
(again). Pages would take ages to load, streams would stutter miserably or simply abort and
downloading OS updates simply timed out. So I set out to measure my actual bandwidth over a longer
period of time.
tl;dr: the option to add TOTP security keys on PayPal is somewhat hidden, it uses Verisign Identity Protection provisioning
It is becoming common knowledge that you should use two-factor authentication
whenever possible. Some services allow the use of TOTP apps on your smartphone,
some only want so send you SMS codes .. and others use proprietary tokens.
tl;dr: Work around problems with the installer by using a serial connection.
Trying to install VMware ESXi on a number of Intel Bay-Trail boards apparently fails with a hanged installation right after a message like Relocating modules and starting the kernel. There’s multiple forum posts around the internet where people suggest various workarounds, which never seemed to work for me.
One suggestion which stood out to me as most promising was completely disabling the internal graphics chip and using a dicrete graphics card in the PCI Express slot.
read on »
This is an update over my earlier post about PXE booting. I’ve learned a few more things and refined some rough edges.
My Motivation is similar to the last post: I started building my homelab with virtual machines. Most of them are based on a minimal CentOS 7 installation, and as such I have a lot of very similar systems. Yes, I could probably use containers to great effect. But I prefer the separation/isolation that I get from virtual machines on ESXi.
read on »