Mac OS Archives - Garbage In Garbage Out https://gigoblog.com/tag/mac-os/ Tech tips & other words Mon, 03 Nov 2025 17:28:32 +0000 en-US hourly 1 Clear Mac OS DNS cache via command line https://gigoblog.com/2025/10/28/clear-dns-cache-in-mac-os-via-command-line-all-versions/ https://gigoblog.com/2025/10/28/clear-dns-cache-in-mac-os-via-command-line-all-versions/#respond Tue, 28 Oct 2025 10:52:59 +0000 http://www.gigoblog.com/?p=631 The method for clearing or flushing the local cache in Mac OS has changed over the years. Here are all the Mac OS versions on one page that details how to clear Mac OS DNS cache via command line. TLDR; Add this alias to your .zshrc file: alias flushdns="sudo killall -HUP mDNSResponder;sudo killall mDNSResponderHelper;sudo dscacheutil […]

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]]> https://gigoblog.com/2025/10/28/clear-dns-cache-in-mac-os-via-command-line-all-versions/feed/ 0 High impedance headphones on MacBook Pro 2021 https://gigoblog.com/2021/11/18/high-impedance-headphones-on-macbook-pro-2021/ https://gigoblog.com/2021/11/18/high-impedance-headphones-on-macbook-pro-2021/#respond Thu, 18 Nov 2021 14:42:52 +0000 http://gigoblog.com/?p=735 Good news for audiophiles out there. High impedance headphones are supported on m1 MacBook Pros. Apple’s new laptops feature an adaptive voltage headphone amplifier, meaning it optimizes itself to the headphones you’re using. With these two models, gone is the concern whether 80 ohm or 250 ohm headphones will work. “When you connect headphones with […]

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]]> https://gigoblog.com/2021/11/18/high-impedance-headphones-on-macbook-pro-2021/feed/ 0 Make your Mac chime at startup again https://gigoblog.com/2020/04/22/make-your-mac-chime-at-startup-again/ https://gigoblog.com/2020/04/22/make-your-mac-chime-at-startup-again/#respond Wed, 22 Apr 2020 15:24:34 +0000 http://gigoblog.com/?p=712 I miss the startup chime on my MacBook Pro. Make your Mac chime on startup again! To enable it, open up terminal and type: sudo nvram StartupMute=%00 To disable it, either reset your parameter RAM by pressing Command-Option-P-R at startup, or in terminal type: sudo nvram StartupMute=%01

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]]> https://gigoblog.com/2020/04/22/make-your-mac-chime-at-startup-again/feed/ 0 Colorize your Terminal shell on Mac OS https://gigoblog.com/2019/10/09/colorize-your-terminal-shell-on-mac-os/ https://gigoblog.com/2019/10/09/colorize-your-terminal-shell-on-mac-os/#respond Wed, 09 Oct 2019 15:09:35 +0000 http://gigoblog.com/?p=692 You need to add color into Mac OS terminal. Apple’s default settings for BASH are less than lovely — just shades of gray. Here’s how to add color to BASH for your visual enjoyment. Here’s what we’re going to create: From Terminal, edit your .bash_profile: vi ~/.bash_profile Add to it: export PS1="\[\033[36m\]\u\[\033[m\]@\[\033[32m\]\h:\[\033[33;1m\]\w\[\033[m\]\$ " export CLICOLOR=1 […]

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]]> https://gigoblog.com/2019/10/09/colorize-your-terminal-shell-on-mac-os/feed/ 0 Configure NPM for global user without sudo on Mac OS https://gigoblog.com/2019/10/09/configure-npm-for-global-user-without-sudo-on-mac-os/ https://gigoblog.com/2019/10/09/configure-npm-for-global-user-without-sudo-on-mac-os/#respond Wed, 09 Oct 2019 15:00:33 +0000 http://gigoblog.com/?p=685 Have you ever wanted to configure NPM for global user without sudo on Mac OS? Using ‘sudo’ with NPM is a no-no, as it can cause all kinds of havoc with file permissions. But there is a way to avoid this heartache and misery! You can specify a default directory for globally installed packages and […]

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]]> https://gigoblog.com/2019/10/09/configure-npm-for-global-user-without-sudo-on-mac-os/feed/ 0 Fix for Command & Conquer: Generals crashing in Mac https://gigoblog.com/2017/01/25/fix-command-conquer-generals-crashing-on-mac/ https://gigoblog.com/2017/01/25/fix-command-conquer-generals-crashing-on-mac/#respond Wed, 25 Jan 2017 23:14:55 +0000 http://www.gigoblog.com/?p=658 Command & Conquer: Generals crashing on Mac? As any Mac user knows, running Command and Conquer Generals (including Zero Hour) tends to crash on startup on a Mac running OS X. Here’s how to fix it. Launch “Activity Monitor”, and from the “View” menu, choose “All Processes.” Then, search for “gamed”. If it shows up […]

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]]> https://gigoblog.com/2017/01/25/fix-command-conquer-generals-crashing-on-mac/feed/ 0 Firewall locked you out of screensharing on OS X? https://gigoblog.com/2014/11/13/firewall-locked-you-out-of-screensharing-on-os-x/ https://gigoblog.com/2014/11/13/firewall-locked-you-out-of-screensharing-on-os-x/#respond Thu, 13 Nov 2014 21:17:13 +0000 http://www.gigoblog.com/?p=626 Sadly, I had this experience lately. Even though I had the firewall explicitly set to allow connections using Screen Sharing, for some reason my Mavericks OS X 10.9 server hiccuped and I couldn’t access it via screen sharing. Here’s how I resolved my dilemma: I was thankfully able connect via SSH; so I first checked […]

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]]> https://gigoblog.com/2014/11/13/firewall-locked-you-out-of-screensharing-on-os-x/feed/ 0 Mute system audio when increasing/decreasing volume https://gigoblog.com/2007/11/26/mute-system-audio-when-increasingdecreasing-volume/ https://gigoblog.com/2007/11/26/mute-system-audio-when-increasingdecreasing-volume/#comments Mon, 26 Nov 2007 16:42:10 +0000 http://www.gigoblog.com/2007/11/26/mute-system-audio-when-increasingdecreasing-volume/ Here’s a cool tip from The Distant Librarian on how to silence the audio feedback you get when using the keyboard to increase or decrease the volume in Mac OS X. Hold down the shift key while depressing the volume keys will silence the auditory feedback while raising and lowering the volume, but still show […]

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