Category Archives: How-To

How-To

How-To fix Sophos Central Endpoint “Installation Failed” on macOS Sierra

If you get this error while trying to (re)install Sophos Endpoint or even Sophos Home and in /var/log/install.log you see something like: 2017-10-17 10:47:56-06 hulk Sophos Bootstrap[5051]: [SMESophosBootstrapAppDelegate.m:1656] System verified 2017-10-17 10:48:36-06 hulk Sophos Installer[5087]: [SMEInstallController.m:237] Installing saas version 9.6.5 2017-10-17 10:48:36-06 … Continue reading

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How-To unlock MAGIC-SIM stuck in DUAL-MODE (007) on an iPhone 6

The MAGIC-SIM DUAL-MODE (aka 007 mode) is not working well on any iPhone model. Once activated it will take away the `STK menu` from your SIM Applications list with no apparent way to roll back to normality. At this point … Continue reading

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How-To Add A Reset Button To A Raspberry Pi Model A and B Rev 1

Here are the instructions to create a Reset Button for your RaspberryPi Rev.1 which can also ‘wake’ the RPi from halt/shutdown state. While on the new RaspberryPi Rev.2 is present a new set of pin called P6 header that provide a way to … Continue reading

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How-To Create An Encrypted DMG File From Command-Line in OSX

You can create an secure encrypted DMG disk image from the command-line in Mac OS X using ‘hdiutil’, type the following instrcution in the Terminal application: #hdiutil create -encryption AES-256 -fs HFS+ new.dmg -srcfolder /path/to/your/folder Substitute ‘/path/to/your/folder’ with the actual … Continue reading

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How-To Install an Apple (Wireless and USB) Keyboard in Windows 7

I recently discovered a new small utility that helps to use a Apple Keyboard and most of its special ‘Fn’ keys with Windows. This utility is called AppleWirelessKeyboard that you can download from this link: http://uxsoft.cz/projects/applewirelesskeyboard/AppleWirelessKeyboard.exe Despite it’s name (that specifically … Continue reading

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How-To order a GiffGaff Nano SIM from Nanogaff

Nanogaff is a community-powerds distribution system for GiffGaff Nano SIM cards. This is the link where you can order your Nano SIM: http://nanosim.giffgaffapps.com Here is also the link on how to swap you standard or micro SIM to the Nano … Continue reading

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How-To fix the GPG error: “The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY”

These are the few command-line instruction to fix the GPG Error (NO_PUBKEY) that may appear when trying to run the ‘apt-get update’ command on a APT based system: “GPG error: http://some.site.com stable Release: The following signatures couldn’t be verified because the public … Continue reading

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How-To Cancel My UK and European eFAX account and subscription

To cancel your UK eFAX account you will need to call the customer service via phone: The UK eFax Customer Service number is +44 (0)800 6899 336 You will need to provide: Your eFAX number in the form 442xxxxxxxx. The full … Continue reading

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How-To Fix Cadaver Showing “WARNING: Untrusted server certificate presented” on Mac OS X

Here is explained how to compile Cadaver to support root CA certificates with ‘homebrew’ or Mac OS X. Cadaver is a command line webdav client tool. It’s available on Mac through the ‘homebrew‘ subsystem for OS X. It has the … Continue reading

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How-To Remove The Password From a SSL Certificate Key File

In case you find yourself with a SSL Certificate for your your domain and need to use it in systems where automatic processed will restart the web server (i.e. Apache 2), I guess you have discovered that a serious problem … Continue reading

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