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RTM/Z80

Jan 20, 2022 · 1 min read

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RTM/Z80 is a multitasking kernel, built for Z80 based computers, written in Z80 assembly language, providing its users with an Application Programming Interface (API) accessible from programs written in the C language and the Z80 assembly language.

Slackware lives!

Jan 14, 2022 · 1 min read

en

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Slackware was my first real distro in 1995 and I am happy it is still alive and kicking. It was a floppy disk based distribution. So you end up filling about 20 disks (!) of 1.44MB to install and boot Linux on your old i386 with 1MB of RAM and 40MB of HardDisk. After some upgrade I finally got a PC with 8MB RAM and 500MB hard disk (and yes, it was a lot of space for that times!).

8 Bit computers: 2022 Edition!

Jan 1, 2022 · 1 min read

books en retro-computing · 6502 book c64 retro-computing vic20

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Due to COVID19 pandemic, I and my family was forced in our home. So I revamped my 8bit computer book, with a new look and a nice search engine.

Log4jShell

Dec 20, 2021 · 1 min read

en knowledgebase software

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Log4jShell vulnerability

Kasperky article
https://www.lunasec.io/docs/blog/log4j-zero-day-update-on-cve-2021-45046/ with the following "news":If you have previously used LOG4J_FORMAT_MSG_NO_LOOKUPS to mitigate the log4shell vulnerability, in certain conditions this will not be sufficient to protect your code from RCE. Refer to our mitigation guide for additional steps you can take to remediate the impact of Log4Shell
Apache group released two fix in short delay, after the second fix was found vulnerable to other attacks, a third fix (2.17.0) was released.

Removing sensitive data from your github repo ex-post

Nov 11, 2021 · 1 min read

en · fix git github security

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As you know, sometime Internet is a bad place (and not, I am not talking about Facebook :)