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

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Archive for the ‘*nix’ Category

More secure SSH: hardening both client and server. And use Tor

Posted by jpluimers on 2015/01/26

Thanks Jan Wildeboer for sharing a link to https://stribika.github.io/2015/01/04/secure-secure-shell.html.

That describes how to harden your secure shell by configuring the most secure algorithms for it.

–jeroen

via More secure SSH. https://stribika.github.io/2015/01/04/secure-secure-shell.html.

Posted in *nix, *nix-tools, Communications Development, Development, Internet protocol suite, Power User, SSH, TCP | Leave a Comment »

NotePad++: Text Editor which shows \r\n (via: Stack Overflow)

Posted by jpluimers on 2015/01/26

I hadn’t monitored Notepad++ in a very long time, so I was glad that User Thomas Owens mentioned that it can show you the CR and LF codes:

With Notepad++, you can show end-of-line characters. It shows CR and LF, instead of “\r” and “\n”, but it gets the point across. […]

To use Notepad++ for this,

  1. open the View menu, open the Show Symbols slide out, and
  2. select either “Show all characters” or “Show end-of-line characters”.

I needed this because many development environments get confused when you have text files using a mix of line-break kinds (in my case LF, CR and CRLF).

–jeroen

via Text Editor which shows \r\n? – Stack Overflow.

Posted in *nix, Apple, Linux, Mac, OS X, OS X Lion, OS X Mountain Lion, Power User, SuSE Linux, Windows | Leave a Comment »

Zenoss: Open Source Network Monitoring and Systems Management

Posted by jpluimers on 2015/01/19

Interesting stuff: Zenoss Open Source Network Monitoring and Systems Management.

Stuff like monitoring NNTP, monitoring HTTP, monitoring DNS, etc.

–jeroen

Posted in *nix, Linux, Monitoring, Power User, SuSE Linux | Leave a Comment »

*nix: Cron shortcuts @daily, @weekly, @monthly, … (via: Cron and Crontab usage and examples)

Posted by jpluimers on 2015/01/16

Even if you think you are familiar with something, it pays to keep your knowledge current.

I’ve been always struggling with the crontab syntax. It’s flexible, but for most cases overly complex, for instance I still thought I needed “0 0 * * 0″ to run something weekly, which I needed.

So I am pretty sure there were no @monthly or @weekly in crontab last century.

Not so any more, and if I’d had the crontab documentation more often, I had known about the crontab shortcuts @reboot, @yearly, @annually, @monthly, @weekly, @daily, @midnight and @hourly many years ago: Read the rest of this entry »

Posted in *nix, Linux, Power User, SuSE Linux | Leave a Comment »

OpenSUSE: Getting to work the ruby script to login into dyndns.com automatically every week.

Posted by jpluimers on 2015/01/06

So I remember for the next time:

zypper install ruby
zypper install ruby-devel
zypper install gcc
zypper install gcc-c++

If you don’t install all these, them the gem will fail with errors like this: Read the rest of this entry »

Posted in *nix, Linux, Power User, SuSE Linux | 1 Comment »

 
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