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How to configure OpenDKIM with Postfix on Debian 12 (bookworm)

Here is a step by step guide to configure OpenDKIM with Postfix on Debian 12 bookworm.

We're gonna modify default configuration files to keep only minimal or required settings.

Install openDKIM

sudo apt-get install opendkim opendkim-tools

Conf ...

Linux find total usage of files older than specified number of days

Sometimes I need to calculate a total disk usage of files older than a specified interval (days, months, years).

Here is a 1 liner to do that:

find . -type f -mtime +7 -print0 | du -hc --files0-from - | tail -n 1

Detailed info ?


Email archiving with MailPiler 1.3.x on Debian 8 Jessie

If you are in a search for an email archiving solution, MailPiler is a recommend solutions.

If you didn't heard about MailPiler, check out the comparison with MailAr ...

Cum functioneaza un sms Gateway?

**Trimite si monitorizeaza mesaje si campanii SMS. Usor & in siguranta, oriunde in lume. **

Platforma ElementarySMS este alcatuita din doua aplicatii, conectate prin Internet, pregatite sa trimita si sa receptioneze meseje text (SMS) catre si dinspre operatorii de telefonie ...

Detecting CSV delimiter with PHP

Excel doesn't do a very good job on exporting comma separated files (CSV or TXT). Reading the file with fgetcsv could fail, since the field separator might not be as expected (a comma).

Here is a quick method to find the field delimiter from a CSV file. We'l ...

Debian Linux cron error: bad username (nscd and libnss-mysql)

If your system setup is based on nscd with libnss-mysql and you have setup a cron job for a database user, it might be possible to get this error in your syslog after ...