Orange Sun

Welcome!

This corner of the Web is maintained by Vitaly Potyarkin. I am a computer enthusiast, hobbyist programmer and an accidental system administrator for my household

I write a blog, publish some open source projects at GitHub and I enjoy receiving feedback and comments via email

Latest blog entries

• Negotiating down to 100Mbit between two 1Gbit devices

  2022-07-29

  Connecting two gigabit-capable devices via 4-wire UTP cable is an abomination, but sometimes we have to live with it (e.g. when a greedy ISP decides to save a few cents and pulls a cheap cable to your apartment). The fun starts when the devices try to negotiate Ethernet connection …
• "No user exists for uid" when pushing to git repo 2022-07-21
• Pip-installable Pelican themes 2022-06-10
• Unexpected workaround for Libvirt VMs with cgroups v2 in Cirrus CI 2022-03-02
• D-Link DIR-825 (rev.B1) throughput test 2022-01-31
• Ansible apt module fails to install python3-apt on Debian Testing 2020-12-09
• Pegatron Cape 7 nettop (thin client) 2020-04-04
• Running Libvirt (KVM) in Cirrus CI 2020-02-25
• Cirrus CI integration for GitLab projects 2020-02-18
• Cygwin CI journey 2020-01-28

Continue to older entries, full archive

See also

I maintain a public list of bookmarks and a blogroll. You may want to browse those when you're done with my writings. Here is a sneak peek:

Bookmarks

• How to create an SSH certificate authority by Jim Fisher
• Signing arbitrary data with SSH keys
• Create ED25519 certificates for TLS with OpenSSL
• Exfiltration by encoding data in pixel colour values
• Immutable Linux OS with a hermetic /usr partition by Lennart Poettering

New articles from other interesting blogs

• What can a compromised TLS Certificate Transparency Log do? (Wandering Thoughts)
• How to trigger services restart after OpenBSD update (Solène Rapenne)
• Making it ping^WSignal: A bit more stealth for censorship evasion (Doing stupid things (with packets and OpenBSD))
• Polling: Problems and attractions (Technoglot)
• what can a homepage be? (maya.land)