Posted on 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parameters on one of my OS X 10.11 servers, I noticed that my existing OS X TCP Performance Tuning page had gotten out of date.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 …
Posted on 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 …Posted on 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 …
Posted on in System Administration
Posted on 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 …
Posted on 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 …
Posted on 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 …
Posted on 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 …
Posted on 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 …
Posted on 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 …
Posted on in System Administration
On your Mac, the Brother ControlCenter software that let's you scan an image from your Brother MFC to your computer is started at boot by launchd. Therefore, it can be restarted from the command line.
For example, here is a list of processes controlled by launchd:
$ launchctl list | grep brother …Posted on in System Administration
When I upgraded to OS X 10.7 (Lion), I started using the built-in IPSec VPN client rather than Cisco's VPNClient. I experienced problems immediately. At first it appeared that the connection was being made, but no traffic was passing. When I tried pinging by IP address, I found that …
Posted on in system_administration
If you're a frequent user of GNU screen on your Mac, you are probably tired of
using ctrl-a [ to enter scrollback mode. Adding the following lines to the
.screenrc configuration file in your home directory in order to scroll with
your mouse:
defscrollback 5000
termcapinfo xterm* ti@:te@
Posted on in Software
My wife uses a Canon FS100 for taking home videos of the kids. If you aren't familiar with it, it's a fairly light-weight camcorder that uses SDHC cards rather than tapes. The only real grievance I have with it is that the video codec it uses is not compatible with …
Posted on in System Administration
