ACWN - Blog

Not a blog

Rants and ideas about everything ...

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GIT tip

July 21, 2017

How to restore a deleted file in your GIT repository

You want to restore a deleted file in a repository? This is how it works: Get a summary of all deleted files in your repo and copy the commit-ID. Then restore it with the checkout.

git log --diff-filter=D --summary
git checkout commit-ID~1 filename

Hint: After the commit-ID is a tilde.

Exim logo

Exim tip

July 16, 2016

How to allow only encrypted connections in Exim?

Are you tired of getting emails from servers that are not properly configured? Well, tell them were to go with these simple line in your ACL "acl_smtp_mail".

!encrypted = *
message = WARNING - No encrypted connection. This host allows encrypted connections only.
log_message = WARNING - No encrypted connection from $sender_host_address.

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New design

July 02, 2016

Time for a change

New responsive web site design.

LPIC-1 logo


April 29, 2016


I've got it!!