Articles tagged with mac os x

1. Changes to OS X TCP Performance Tuning

   Posted on February 01, 2016 in system_administration

   While updating the TCP tuning parameters on one of my OS X 10.11 servers, I noticed that my existing OS X TCP Performance Tuning page had gotten out of date. The page was nearly eight years old, so it is no surprise that happened. I updated the page in …

2. [MacPorts] upgrade gnutls failed

   Posted on December 07, 2015 in System Administration

   

   I ran into this issue while trying to install wine-devel on my Mid 2012 MacBook Pro running El Capitan and MacPorts 2.3.4. As the install progressed, here is the error I got:

   Error: org.macports.build for port glib2 returned: command execution failed
   Please see the log file …

3. [OS X] Disable IPv6 Address Privacy

   Posted on November 13, 2015 in Networking

   For those that are really into privacy, the Privacy Extensions defined in RFC 4941 are a really good thing. This extension circumvents SLAAC and has the result of randomizing your IPv6 address. Like I said, if privacy is a big deal for you, this is definitely something you want enabled …

4. El Capitan Leads to More DNS Woes

   Posted on October 06, 2015 in System Administration

   For whatever reason, Apple really likes messing with how I use DNS.

   I've written many, many, many times about having to modify OS X's DNS functionality to append search domains when a hostname includes a dot. Every single time I upgrade, this change is broken.

   Previously, the workaround had been …

5. Agreeing to the Xcode/iOS license...

   Posted on September 21, 2015 in Programming

   Sometimes this pops up when you least expect it:

   Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.
   

   This morning, I went to refresh one of my git repo's for work, and make spit that out. What the heck happened last night? Anyway, the …

6. Goodbye, discoveryd. Hello again, mDNSResponder.

   Posted on July 07, 2015 in System Administration

   Great!

   Once again, Apple has made a change in how DNS is handled in Mac OS X. Originally, Yosemite (10.10) had replaced mDNSResponder with discoveryd. This meant that all of those who had made a change to force mDNSResponder to always append search domains to DNS lookups had to …

7. OS X Not Appending Search Domains - Yosemite Edition

   Posted on November 20, 2014 in System Administration

   It seems this problem has resurfaced again with the new version of Mac OS X. More specifically, this problem seems to affect appending search domains when the hostname contains a dot. In Yosemite (10.10), mDNSResponder has been replaced with discoveryd. Fortunately, all we need to do here is add …

8. Mac OS X Not Using Search Domains

   Posted on May 04, 2014 in System Administration

   Every time I restart my OS X Mountain Lion (10.9) laptop, it stops using the DNS search domains I've added via the Network preferences pane. I have found that restarting mDNSResponder fixes this issue. There are two ways to do this.

   The first is a simple restart by sending …

9. Finder Crashing Every Minute

   Posted on November 05, 2013 in System Administration

   Thanks to an error report from one of my backup jobs, I noticed that /Users/slap/Library/Logs/DiagnosticReports was filling up with Finder crash reports (files of the type *.crash). These files were being created once a minute. Additionally, icons on my Desktop were blinking once a minute.

   Upon …

10. OS X CLI: Install VirtualBox

    Posted on April 29, 2013 in System Administration

    I decided the other night to begin doing some testing using my headless Mac Mini. I use VirtualBox for all my testing on my Mac OS X systems. Since the Mini is headless, I decided now was as a good a time as any to start using VirtualBox via the …