Tag: install

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Open Source OsX RabbitMq Solutions Web

RabbitMQ Server – Issue with High Sierra – Mac OS

macOS RabbitMq

After updating to High Sierra, I faced issues with starting rabbitmq-server.  The command gave the following error:

RabbitMQ 3.6.3. Copyright (C) 2007-2016 Pivotal Software, Inc.
## ## Licensed under the MPL. See http://www.rabbitmq.com/
## ##
########## Logs: /usr/local/var/log/rabbitmq/rabbit@localhost.log
###### ## /usr/local/var/log/rabbitmq/rabbit@localhost-sasl.log
##########
Starting broker...
completed with 10 plugins.
Assertion failed: (ctx), function digest_update, file /BuildRoot/Library/Caches/com.apple.xbs/Sources/boringssl/boringssl-109.20.5/apple/crypto/digests.c, line 49.
/usr/local/sbin/rabbitmq-server: line 236: 2681 Abort trap: 6 start_rabbitmq_server "$@"

I narrowed down the issue to a problem with Home Brew. I had installed rabbitmq via HomeBrew a while back and with the changes in the operating system rabbitmq was failing to start.

Running the following command gave the below error message:

$ brew update
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
Error: /usr/local is not writable. You should change the ownership
and permissions of /usr/local back to your user account:
sudo chown -R $(whoami) /usr/local

How to fix RabbitMQ Server – Issue with High Sierra

  1. Reinstall Home Brew using the following command:
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
  2. Then run:
    brew update
  3. Then run:
    brew reinstall rabbitmq
  4. Once done you must  be able to run rabbitmq-server to get the server up and running.
Categories
Linux Open Source

KNemo – Monitor your Internet usage…

KNemo is a Network monitoring program for Linux. The program stores information wrt the amount of data communicated thru your various LAN connections and also provides a way to automatically disable the internet on certain conditions.

KNemo is a simple addon program to your network management enabling you to control your internet usage. It also provides methods to disable internet in case you exceed the monthly bandwidth limit of your plan. Its an excellent tool to study your usage of internet over time.

To install Knemo on a ubuntu system, use the following command:
sudo apt-get install knemo

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Categories
Laptop Ubuntu

Test Drive The All New Ubuntu/Kubuntu Netbook OS


Wubi
Image via Wikipedia

The latest version of (k)Ubuntu comes with a Netbook OS to suit the small screen and moderate horsepower netbook segment of notebooks. The version is light weight and makes good use of the features common between netbooks to get the best out of your netbook.

The official websites recommend you download the iso and create a bootable flash drive using the iso. The step by step method to do it is given in the following links:
Ubuntu – Netbook Remix
Kubuntu – Netbook Technical Preview


If you are like me and dont want to go thru the process of installing Karmic Koala again, you are in luck… You can test the new Netbook Remix directly from the default desktop install of Ubuntu/Kubuntu.

If you are using Ubuntu you just have to install the “ubuntu-netbook-remix” package. That can be done with the following command:
sudo apt-get install ubuntu-netbook-remix

If you are using Kubuntu you just have to install the “kubuntu-netbook” package. That can be done with the following command:
sudo apt-get install kubuntu-netbook

When you reboot and login you will automatically be taken to the netbook remix of your OS.

PS: The version is one of the earliest releases, so expect updates and more improved performance in the near future.

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