When ssh into a production server, Debian, and noticed there is a warning or error as follows: Terminal manpath: can’t set the locale; make sure $LC_* and $LANG are correct mkyong@test-server:~$ Check the server’s locale; there are warning about the LC_CTYPE and LC_ALL variables. Terminal $ locale locale: Cannot set LC_CTYPE to default locale: No […]
This tutorial shows you how to install MariaDB on Debian 11. Table of contents: 1. Install MariaDB 2. Verify MariaDB 3. Secure the MariaDB 3.1 Enter current password for root (enter for none): enter 3.2 Switch to unix_socket authentication [Y/n] n 3.3 Remove anonymous users? [Y/n] y 3.4 Disallow root login remotely? [Y/n] y 3.5 […]
On Ubuntu, we can add JAVA_HOME environment variable in /etc/environment file. Note /etc/environment system-wide environment variable settings, which means all users use it. It is not a script file, but rather consists of assignment expressions, one per line. We need admin or sudo to modify this it. Further Reading Ubuntu – EnvironmentVariables 1. JAVA_HOME 1.1 […]
On Debian 9.5, the MySQL package is still the old MySQL 5.5. This little guide show you how to upgrade it to MySQL 5.7 1. Download MySQL APT 1.1 Get the MySQL APT and select MySQL 5.7 $ wget https://dev.mysql.com/get/mysql-apt-config_0.8.10-1_all.deb $ sudo gdebi mysql-apt-config_0.8.10-1_all.deb 1.2 Below “configuration mysql-apt-config” screen will be prompted, clicks the first […]
In this article, we will show you how to upgrade from Debian 7 (wheezy) to Debian 9 (stretch) 1. Debian code name First, understand the Debian code name, read this Debian releases Debian 9 (stretch) Debian 8 (jessie) Debian 7 (wheezy) Debian 6 (squeeze) P.S On Debian 7, first upgrade to Debian 8, then Debian […]
On Debian, you can use apt-cache policy ‘package name’ to check the package version. 1.1 Display Tomcat7 version. $ sudo apt-cache policy tomcat7 tomcat7: Installed: (none) Candidate: 7.0.52-1ubuntu0.3 Version table: 7.0.52-1ubuntu0.3 0 500 http://archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 Packages 7.0.52-1 0 500 http://archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 1.2 Display OpenJDK-7 version. $ sudo […]
In this tutorial, we will show you how to install Oracle JDK 8 On Debian, manually. Environment : Debian 7 OpenJDK 1.7 is installed. (Switch to Oracle JDK 8 later) At the time of writing, OpenJDK 1.8 is not included in the default apt-get repository yet. I just don’t like the default apt repository schedule, […]
In this tutorial, we will show you how to install Apache Tomcat 8 On Debian, manually. Environment : Debian 7 JDK 1.8 Apache Tomcat 8 P.S Assume the JDK 1.8 is installed in /opt/jdk folder. Refer to this guide to install Oracle JDK 8 on Debian. Note On Debian 7, the Tomcat 8 is not […]
On Debian, type cat /etc/debian_version to display the Debian version. Terminal $ cat /etc/debian_version 9.5 Alternatively, cat /etc/issue Terminal $ cat /etc/issue Debian GNU/Linux 9 \n \l The last one, lsb-release -a, it will display the Debian detail. Terminal $ lsb-release -a -bash: lsb-release: command not found $ sudo apt-get install lsb-release $ lsb_release -a […]
Deployed a Debian 7.5 on Linode server, the default is using OpenJDK 1.6. How to upgrade to OpenJDK 1.7? $ java -version java version "1.6.0_31" OpenJDK Runtime Environment (IcedTea6 1.13.3) (6b31-1.13.3-1~deb7u1) OpenJDK 64-Bit Server VM (build 23.25-b01, mixed mode) Tracing the java, it’s using the Debian’s alternative settings : $ ls -lsa /usr/bin/ | grep […]
