Damjan Cvetko

Damjan Cvetko

Developer, System Architect, Hacker.

Docker and NFS Stale file handle

1 minute read

<p>I just recently had to migrate a large NFS share due to storage issues. A new NFS share was prepared on a different system, files were coppied over, all the nasty UID/GID related permissions taken care of and what was left was to remount the share on the servers that used it.</p>

Writing your own PHP APM Agent horror stories

2 minutes read

<p>One of my projects the last few months was getting our own PHP framework to send data to Elastic APM for performance logging and debugging. We decide on Elastic APM since we already started using it for our Golang services and wanted a more complete picture.</p>

Xmas CTF 2019 - Day 23

2 minutes read

<p>Challenge: Since Christmas is getting close, there has been a lot of fake news and Santa is getting some strange messages.</p>

Xmas CTF 2019 - Day 21

8 minutes read

<p>Challenge: Santa trusted 3 elves with his secrets. They couldn’t agree on the encryption scheme to use, so each of them chose a different one. Can you decrypt each of the messages in the attached archive and recover the secret.</p>

Xmas CTF 2019 - Day 24

2 minutes read

<p>Challenge: Santa thanks you all for all the help, dedication and all the challenges you have completed! Thanks again and don’t forget to check BSidesLjbuljana #CFP and sponsorship offers. Now Santa is already running late to some parts of the world but anyway it’s all about perfect timing! Enjoy the last challenge and see you at #BSidesLjubljana!</p>

Xmas CTF 2019 - Day 22

1 minute read

<p>Challenge: Someone send an image to Santa but it got corrupted during the transfer or did it? Maybe someone intentionally did this and hidden a message inside?</p>

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