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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for June 21st, 2017

OpenSuSE Tumbleweed – testing the password of any user with getent and openssl

Posted by jpluimers on 2017/06/21

For one of my VMs I forgot to note which of the initial password I had changed, so I wanted to check them.

Since I didn’t have a keyboard attached to the console and ssh wasn’t allowing root, I needed an alternative than actual login to test the passwords.

Luckily /etc/shadow, with getent and openssl came to the rescue.

Since getent varies per distribution, here is how it works on OpenSuSE:

Read the rest of this entry »

Posted in *nix, *nix-tools, ash/dash, bash, bash, Development, Encoding, Hashing, Linux, md5, openSuSE, Power User, Scripting, Security, SHA, SHA-256, SHA-512, Software Development, SuSE Linux | Leave a Comment »

When someone writes UTF-8 and UTF-16 strings to the same file in binary format without converting between them…

Posted by jpluimers on 2017/06/21

A while ago, I had to fix some stuff in an application that would write – using a binary mechanism – UTF-8 and UTF-16 strings (part of it XML in various flavours)  to the same byte stream without converting between the two encodings.

Some links that helped me investigate what was wrong, choose what encoding to use for storage and fix it:


Posted in Delphi, Delphi 10 Seattle, Delphi 10.1 Berlin (BigBen), Delphi XE8, Development, Encoding, Software Development, UTF-16, UTF-8, UTF16, UTF8, XML, XML/XSD | 3 Comments »

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