Problem scenario
Using a web-based email that is powered by Horde Mail (e.g., version 5), how do you change the time zone?
Solution
Problem scenario
You have been given a URL endpoint that is supported by some AWS service or services. How do you find out what the underlying service is?
Solution
Problem scenario
You have a playbook, and your variables are defined. But you get an error “FAILED ={‘msg”: ‘The task includes an option with an undefined variable. The error was ‘dict object’ has no attribute ‘Name’…”
What do you do to solve this?
Solution
The variable’s source could be blank. With “ec2_instance_info” the module will connect to AWS.
Problem scenario
You have installed StackStorm, but you do not know what version you have. How do you find out?
Solution
Run this command: st2 –version
Problem scenario
You want to install wxWidgets on Linux. What should you do?
Solution
Run the following:
sudo zypper -n install bzip2 gcc-c++
sudo yum -y install bzip2
sudo apt -y install bzip2
widgetversion=3.0.4
cd /tmp/
curl -Ls https://github.com/wxWidgets/wxWidgets/releases/download/v$widgetversion/wxWidgets-$widgetversion.tar.bz2 /tmp/wxWidgets-$widgetversion.tar.bz2
cp /tmp/wxWidgets-$widgetversion.tar.bz2 /bin/
cd /bin/
bzip2 -d wxWidgets-$widgetversion.tar.bz2
tar -xf wxWidgets-$widgetversion.tar
cd wxWidgets-$widgetversion » Read more..
Problem scenario
Normally you use Putty to a Debian distribution of a Linux server. You are having trouble using some of the Linux server’s utilities. You try to run the “jsql” command, but you see this:
Apr 29, 2019 1:46:15 PM java.util.prefs.FileSystemPreferences$1 run
INFO: Created user preferences directory.
13:46:17,296 ERROR root:67 – HeadlessException, command line execution in jSQL not supported yet:
No X11 DISPLAY variable was set, » Read more..
Problem scenario
For a boto3 program, you want to find the AWS namespaces. What do you do to list the namespaces that are part of your AWS accounts?
Solution
Prerequisites
You must have the AWS CLI installed. If you need assistance with this, see this posting.
This also assumes that the Linux user has the policy for servicediscovery:ListNamespaces.
Problem scenario
You have a Red Hat derivative of Linux. You want to install Flask. What should you do?
Solution
Prerequisites
Install pip. If you need assistance, see this posting.
Procedures
Run this command: sudo pip3 install flask
Problem scenario
The security team for your enterprise will not permit Python 2 to be installed. (You do not want to install a new minimal Python package either.) How do you fix the problem of env: ‘python’: No such file or directory when you run a make command?
Solution
The command “python” (not python3), will work after you run this script.
Problem scenario
You want to install Erlang on a Debian or Ubuntu Server (e.g., Linux Mint or Kali Linux). What should you do?
Solution
Run this script with sudo (e.g., sudo bash /tmp/erlang.sh):
# Written by www.continualintegration.com
#/bin/bash
echo “This script can take 20 minutes to run”
apt -y update
apt -y install autoconf
apt -y install libncurses5-dev
apt -y install libncursesw5-dev
apt -y install gcc
apt -y install python3
apt -y install make
cd /bin/
git clone https://github.com/erlang/otp.git
cd otp
./otp_build autoconf
./configure
echo “This next portion may take 15 minutes”
date /tmp/datetime.txt
make
make install
ln -s /usr/local/lib/erlang/bin/erl /usr/bin/erl
ln -s /usr/local/bin/erlc /usr/bin/erlc
ln -s /etc/alternatives/python3 /usr/bin/python
echo “Script run completed.”
echo ” ”
echo “Many errors above (if there are any) may be ignorable”
echo “try the ‘erl’ command with no quotes to see if Erlang was installed”
echo ‘If you get to a carrot prompt, » Read more..