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Knowledge is Power

Tagged: hacks

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Mac

MacOS tips

Hide a user account in MacOS https://support.apple.com/en-us/HT203998 https://www.reddit.com/r/macsysadmin/comments/emxph7/catalina_create_a_hidden_user/ https://github.com/gregneagle/pycreateuserpkg Creating user account https://apple.stackexchange.com/questions/226073/how-do-i-create-user-accounts-from-the-terminal-in-mac-os-x-10-11 https://sterlingit.com.au/how-to-create-a-user-or-admin-user-in-osx-apple-mac-via-terminal-commands-in-9-simple-steps/ https://mackeeper.com/blog/post/356-using-various-types-of-user-accounts-on-mac/   Find files created or modified by an installer http://hints.macworld.com/article.php?story=20091223115101622   Take backup of startup entries I’d take a before and after snapshot to identify...

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Mac

Telnet missing on MacOS

Source: https://forums.developer.apple.com/thread/79056 Manual installation Go to “www.gnu.org/software/inetutils/” (full URL omitted to avoid moderation) Click on the HTTP download link for “Inetutils” Download “inetutils-1.9.4.tar.gz” Compile and Install tar zxvf inetutils-1.9.4.tar.gz cd inetutils-1.9.4 ./configure make sudo make install telnet rainmaker.wunderground.com   Related posts:...

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Mac

Starting AMPPS without password on MAC

The below method will not start AMMPS without password, but instead does start mysql and apache web server if you have AMPPS installed already. There are 2 steps involved, 1. Modifying sudoers file, and 2. Creating a startup applescript application....

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Mac

Replace invalid code signature in Mac apps

What? Replacing the invalid code signature in mac apps with a new one How? Example: sudo codesign –force –sign – /Applications/DBeaver.app Symptoms MacOS gives messages like – “Dbeaver” is damaged and can’t be opened. You should move it to the Trash.  ...

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Mac

Changing Wine key mappings on Mac OS X

Source: https://palant.de/2014/02/14/crazy-hacks-changing-wine-key-mappings-on-mac-os-x Remap CMD keys on wine (MacOS) One of the biggest quirks of using a Mac is its keyboard — in addition to the usual Control (⌃) and Alt a.k.a. Option (⌥) keys you also have the Command (⌘) key. Unlike...

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Mac

Mac OS tips

Change hostname   Change hostname $ sudo scutil –-set HostName <new hostname>   Related posts: Super charge bash with these bash_profile tips SSH Auto completion on OSX Can’t connect Excel to Hive using ODBC driver on MAC brew packages and...

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Hadoop / Mac

Hadoop mapreduce not working on mac local setup

Yarn jobs hangs on local mac environment Missing node in Resource manager UI There are no nodes in the node list https://www.robin.eu.org:8088/cluster/nodes File: yarn-site.xml Location: /usr/local/Cellar/hadoop/2.7.3/libexec/etc/hadoop/yarn-site.xml <property> <name>yarn.resourcemanager.hostname</name> <value>localhost</value> </property>   Resource Manager UI displaying ipv6 for local address Hadoop does...