All operations from sudo user sudo su
/etc/hostname
/etc/hosts
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sudo hostname mynewname sudo systemctl restart systemd-logind.service hostnamectl set-hostname mynewname |
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sudo rm /etc/ssh/ssh_host_* sudo dpkg-reconfigure openssh-server |
After reboot machine should be accessed by new name
Ubuntu 16.04 Network Manager contains only one option for VPN, this is PPTP. Today I had to set up SSTP VPN connection to a corporate Windows network.
Import keys for SSTP: Continue reading
Short tips how to install and use Docker on Ubuntu Server 16.04
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sudo apt-get update sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D sudo apt-add-repository 'deb https://apt.dockerproject.org/repo ubuntu-xenial main' sudo apt-get update sudo apt-get install docker-engine |
Simple steps to run Spark 1.5.2 on Ubuntu 14.04 with Yarn (Hadoop 2.7.1)
Install Hadoop (see http://dmitrypukhov.pro/install-hadoop-on-ubuntu/)
Download pre-build Spark from http://spark.apache.org/downloads.html and unpack, say to /opt/spark/ Continue reading
Enrironment: PGAdmin III, Ubuntu 14.x on different machines.
Symptoms: PGAdmin hangs, window grayed. Sometimes it happens occationally when connecting to DB, more often – when opening table properties or SQL queries window.
Solution: remove PGAdmin queries history file
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rm ~/.pgadmin_histoqueries |
Quick notes how to install Apache Tomcat 6 on Ubuntu 14.10
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apt-get install tomcat7 tomcat7-admin |
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dpkg-reconfigure tomcat7 |
Symptoms: run Quik (stock exchange trading software) in Wine or PlayOnLinux and see unreadable symbols instead of cyrillic fonts.
Solution:
I extracted some pieces from a good tutorial from official site: http://docs.mongodb.org/manual/tutorial/ adopted for my tasks.
Import MongoDB public key:
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sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10 |
My configuration: Ubuntu 14.04, Pig 0.13.0, Hadoop 2.2.0 Link to official tutorial http://pig.apache.org/docs/r0.13.0/start.html#req To install Pig, just unpack it to any folder, that’s all. Detailed instruction is below.
Old fashioned way to create Linux daemon script and make it auto run.
Open editor
$ sudo nano myservice
and create the following script in home folder:
