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

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Archive for the ‘Apple’ Category

Mac OS X – need to research this one day: How do I Check DHCP Lease info in terminal – via Ars Technica OpenForum

Posted by jpluimers on 2017/06/20

One day I need to research how to get the conversions right for this: How do I Check DHCP Lease info in terminal – Ars Technica OpenForum as I think that ipconfig getoption en0 lease_time gives me the value in a different format than date -r expects.

Also:

At T1 seconds (typically set to 0.5*lease_time) after the last successful renewal, the DHCP client attempts to renew it’s lease with the DHCP server that granted it’s current address via unicast. If unsuccessful, at T2 seconds (typically set to 0.875*lease_time) after the last renewal, the DHCP client attempts to rebind with any DHCP server via multicast.

–jeroen

Posted in Apple, bash, Development, Mac, OS X, OS X El Capitan, OS X Maverick, OSX Yosemite, Power User, Scripting, Software Development | Leave a Comment »

keyboard shortcut to edit cell content? | Apple Support Communities

Posted by jpluimers on 2017/06/19

When you’ve got an Excel on Windows back-ground, sometimes simple stuff is difficult. So:

option+return edits a cell’s content.

Source: keyboard shortcut to edit cell content? | Apple Support Communities

–jeroen

Posted in Apple, Keyboards and Keyboard Shortcuts, OS X, OS X El Capitan, OSX Yosemite, Power User | Leave a Comment »

munki/createOSXinstallPkg: Tools for packaging OS X installers – upgrade Mac OS X from InstallESD.dmg

Posted by jpluimers on 2017/06/12

You can use this package to install OS X on an empty partition, but perhaps more interestingly, you can also use it to upgrade existing OS X installations to a newer version of the OS X. There are many tools and workflows that support the installation of Apple packages; you can use these together with an OS X installation package to upgrade machines to the latest version of OS X.This is especially interesting when used with tools like Munki — you can automate the upgrade of a group of machines while still preserving user data, or offer an upgrade as a “Self-Service”-type option where a user can initiate an OS X upgrade themselves without needing to have administrative rights.

I will probably need this one day.

Source: munki/createOSXinstallPkg: Tools for packaging OS X installers

–jeroen

Posted in Apple, iMac, Mac, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X, OS X El Capitan, OS X Maverick, OSX Yosemite, Power User | Leave a Comment »

Mac OS X: “fzsftp could not be started” when connecting over SFTP

Posted by jpluimers on 2017/06/02

A while ago I had a “fzsftp could not be started” error using FileZilla on Mac OS X.

From the search results, it wasn’t exactly clear what I did wrong, as the “Show Package Contents” context menu showed “…/Contents/MacOS/fzsftp”

Then I remembered I got a bit confused with all the FileZilla updates coming out and renaming it to contain a version number (I do that with many applications so I can keep old versions allowing me to quickly revert to an older version if there are version compatibilities).

Renaming FileZilla.3.16.x.app back to FileZilla.app solved the issue: apparently FileZilla has a hardcoded dependency on exactly that name. I got there because of the hint about spaces in directories from this thread: fzsftp could not be started – FileZilla Forums

This was before Mac OS X El Capitan; with that version you have to set permissions correctly as well: fzsftp could not be started – Kruyswijk-ICT BV

–jeroen

 

Posted in Apple, Mac, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, OS X, OS X El Capitan, OS X Mountain Lion, OSX Yosemite, Power User, Security | Leave a Comment »

$59 HDFury Universal PSU Doctor Supports Power Monitoring via iOS or Android

Posted by jpluimers on 2017/05/11

Interesting device [WayBack]: $59 HDFury Universal PSU Doctor Supports Power Monitoring via iOS or Android which has a lot more details.

Via: [WayBack] +HDfury has launched a 3-port USB charger/power supply with power monitoring function. – Jean-Luc Aufranc – Google+

–jeroen

Posted in Android, Apple, Development, Hardware Development, Hardware Interfacing, iOS, Power User, USB | Leave a Comment »

 
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