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

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Archive for the ‘*nix’ Category

Comparing versions with wildcards and without them (for instance for semantic versioning)

Posted by jpluimers on 2020/08/12

For a project I’m going to be in need to compare version numbers.

I’m not sure yet if I need wildcards, or can leave them out (but for partial semantic versioning, I might need them).

Below a bunch of links that should get me started.

From a quick glance: versioning is hard, comparing even harder.

On versioning in general

Numeric versioning (usually without wildcards):

On semantic versioning (SemVer for short):

On the C# Version class (which handles most of semantic versioning except: leading zero’s, very large numbers, non-numeric release specifiers)

Interesting idea, but not sustainable: using floating point values to compare versions:

On wildcards:

Via: [WayBack] Anyone tips for a TVersion structure that supports at max quad digits or wildcards and comparison? Like 3.2 matching 3.2.5.7, but not matching 3.3.4.28 ? – Jeroen Wiert Pluimers – Google+

–jeroen

Posted in *nix, *nix-tools, Development, Power User, rpm, Software Development, Versioning | Leave a Comment »

Remote access to the Embarcadero License Center via SSH tunnel – twm’s blog

Posted by jpluimers on 2020/08/10

Thomas basically did all the research on the forwarding needed for ELC (formerly Belise/Elise), then showed the PuTTY equivalent to ssh user@remote -L5567:192.168.1.200:5567:

[WayBackRemote access to the Embarcadero License Center via SSH tunnel – twm’s blog

Via: [WayBack] Once you have set up an Embarcadero License Center (ELC) for your company (with network named user or concurrent licenses) you will need network access … – Thomas Mueller (dummzeuch) – Google+

Related: [WayBack] Introducing the Embarcadero License Center – ELC

–jeroen

 

Posted in *nix, Communications Development, Delphi, Development, Internet protocol suite, Licensing, Power User, Software Development, SSH, ssh/sshd | Leave a Comment »

Great tool: the Toptal Colorblind Web Page Filter

Posted by jpluimers on 2020/08/06

Colorblind Web Page Filter

Colorblind Web Page Filter

A great tool I found out about a while ago [Archive.is] Toptal Color Blind Filter.

It shows the original web page and the rendering for various types of color blindness:

  • protan -> Protanopia: red/green color blindness; anomalous red cones
  • deutan -> Deutanopia: red/green color blindness; anomalous green cones
  • tritan -> Tritanopia: blue/yellow color blindness; anomalous blue cones
  • grey -> Greyscale/achromatopsia: quick check for all forms of colorblindness

Because of a comment at[WayBack] Forums… https://embarcaderomonitoring.wiert.me/ – JWP – Google+, I used Toptal to notify Uptime robot that their status pages are hard for color blind people: [WayBackJeroen Pluimers on Twitter: “Some color blind people indicated to me that @uptimerobot status pages are hard for them to read. Examples are for @EmbarcaderoTech as they have subdomains being offline often: …”, so lets look at how people with various types of color blindness see embarcaderomonitoring.wiert.me :

Read the rest of this entry »

Posted in *nix, Development, Monitoring, Power User, Software Development, Uptimerobot, Usability, User Experience (ux) | Leave a Comment »

If your Samba logon script does not get executed – twm’s blog

Posted by jpluimers on 2020/07/31

… even though you can open and read it fine in an editor: You should check its Linux access permissions. If it is not marked as executable, this might be the cause. Change it with chmod like …

Source for my link archive: [WayBackIf your Samba logon script does not get executed – twm’s blog.

Via: [WayBack] … even though you can open and read it fine in an editor: You should check its Linux access permissions. If it is not marked as executable, this might b… – Thomas Mueller (dummzeuch) – Google+

–jeroen

Posted in *nix, *nix-tools, Power User, samba SMB/CIFS/NMB | Leave a Comment »

Duh moment: when 69.162.119.78 is querying your DNS infrastructure and it appears to be uptimerobot

Posted by jpluimers on 2020/07/28

From the hindsight department [WayBack] Nice when someone in Dallas using 69.162.119.78 is querying your DNS infrastructure for many permutations of domains… https://gist.github.com/jpluimer… – Jeroen Wiert Pluimers – Google+.

Wolfgang Rupprecht gave me some hints on the cause, as the IP address 69.162.119.78 Google Search used to be of a gaming server: [WayBack] TwotailsTikat’s Profile – Member List – Minecraft Forum

After a good night sleep,

# nslookup 69.162.119.78
78.119.162.69.in-addr.arpa name = mail.uptimerobot.com

In retrospect: perfectly normal behaviour for monitoring machine “snip”.

Log by https://github.com/gamelinux/passivedns

–jeroen

Read the rest of this entry »

Posted in *nix, DNS, Internet, Monitoring, Power User, Uptimerobot | Leave a Comment »

 
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