uraimo

To traverse the tree of public data (i.e. "public" community), starting from the "iso" root:

  snmpwalk -v 2c -Cc -c public -m ALL 10.0.0.1 iso

To print out private data ("private" community, enterprises leaf(1.3.6.1.4)):

snmpwalk -v 2c -c private -l authPriv -u "user" -a MD5 -A "pass" -x DES -X "pass" -m ALL 10.0.0.1 1.3.6.1.4

uraimo

Since Tensorflow is not yet available via pip for Python 3.7 and pyenv can't build python on the latest macOS, let's install 3.6.5_1 via homebrew and use it in conjunction with pyenv to create an enclosed environment that will use 3.6 only when we need it:

brew unlink python
brew install --ignore-dependencies https://raw.githubusercontent.com/Homebrew/homebrew-core/f2a764ef944b1080be64bd88dca9a1d80130c558/Formula/python.rb
brew switch python 3.7.2_1

Install pyenv if you haven't already, we'll use it to switch to 3.6.5 only when we need it (e.g. jupyter), leaving the latest Python from homebrew as default release (e.g. 3.7.2_1):

brew install pyenv

pyenv rehash

uraimo

Yes! You can reuse your old Ubuntu Mate 16.04 installation from a Raspberry Pi 3 with a new B+.

Trying to boot the B+ with the old SD without modifications, will result in the rainbow screen with thunderbolt screen showing up.

1. From your old Rpi, update the firmware(kernel.img&co) on the boot partition running sudo rpi-update. This will be enough to boot on the B+ but the wireless card will still not work.

2. Set a country code for the wireless adapter in your wpa-supplicant.conf (usually under /etc/wpa-supplicant/) adding country=GB.

3. Get all the files contained in https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm and copy them over the content in /lib/firmware/brcm. This will add a few new and updated drivers for the B+ wireless adapter.

uraimo

Switching to DNS over TLS on macOS

How to configure your Mac to use DNS over TLS in five easy steps:

1. Install Stubby with Homebrew (https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Daemon+-+Stubby):

    brew install stubby
   

2. Edit the configuration file:

uraimo

Qualche indirizzo shoutcast per ascoltare radio italiane direttamente da itunes ("Open Stream"):

Virgin Radio: http://icecast.unitedradio.it/Virgin.mp3

Lifegate Radio: http://onair11.xdevel.com:8024/

Radio 24: http://shoutcast2.radio24.it:8000/

Radio Marconi: http://onair15.xdevel.com:8922/

uraimo

Tail recursive version of fibonacci:

func fibTail(_ n: Int, _ a: Int = 0,_ b: Int = 1) -> Int{
    if n == 0 { return a }
    if n == 1 { return b }
    return fibTail(n-1,b,a+b)
}

uraimo

Disable APFS local snapshots: sudo tmutil disable localsnapshot

List the current snapshots: tmutil listlocalsnapshots /

Delete them manually: tmutil deletelocalsnapshots

uraimo

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 112b5d6..e6f790d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -552,6 +552,8 @@ else()
     set(SWIFT_HOST_VARIANT_ARCH_default "powerpc64le")
   elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "s390x")
     set(SWIFT_HOST_VARIANT_ARCH_default "s390x")
+  elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "i686")
+    set(SWIFT_HOST_VARIANT_ARCH_default "i686")

uraimo

Reported successes using my binaries on different linuxes:

Ubuntu Core 16 on a Raspi3: Used the mate version and installed clang libpython3.5-dev libcurl3 (or likely libcurl4-nss-dev)

Debian Pi64 on a Raspi3: Used the mate version, installed clang-3.8 libicu-dev libcurl4-nss-dev and copied over libicu.so.55 from an Ubuntu Mate 16.04 system

Armbian(a modified xenial) on an Asus Tinkerboard

uraimo

To build a Raspbian toolchain for Swift 3.0.2 a few things need to be changed in the original guide.

Download the Swift 3.0.2 packages instead of the 3.1.1 ones:

curl -o /tmp/swift-3.0.2-RPi1Zero-RaspbianNov16.tgz  https://www.dropbox.com/s/dkrkt9ht1c3hog2/swift-3.0.2-RPi1Zero-RaspbianNov16.tgz
curl -o /tmp/swift-3.0.2-RELEASE-osx.pkg https://swift.org/builds/swift-3.0.2-release/xcode/swift-3.0.2-RELEASE/swift-3.0.2-RELEASE-osx.pkg

Launch the script with these parameters: