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27.12.2020 Maintenance
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!! Linux
%%collapsebox-closed
!Get Version => Debian GNU/Linux 10.7 (buster)
{{{
cat /etc/debian_version
    10.7
cat /etc/issue
    Debian GNU/Linux 10
lsb_release -a
    No LSB modules are available.
    Distributor ID: Debian
    Description:    Debian GNU/Linux 10 (buster)
    Release:        10
    Codename:       buster
cat /etc/os-release
    PRETTY_NAME="Debian GNU/Linux 10 (buster)"
    NAME="Debian GNU/Linux"
    VERSION_ID="10"
    VERSION="10 (buster)"
    VERSION_CODENAME=buster
    ID=debian
    HOME_URL="https://www.debian.org/"
    SUPPORT_URL="https://www.debian.org/support"
    BUG_REPORT_URL="https://bugs.debian.org/"
hostnamectl
   Static hostname: v22018061954267647
         Icon name: computer-vm
           Chassis: vm
        Machine ID: [..]
           Boot ID: [..]
    Virtualization: kvm
  Operating System: Debian GNU/Linux 10 (buster)
            Kernel: Linux 4.19.0-13-amd64
      Architecture: x86-64
}}}
Note: apt-get install lsb-release
/%

! Update / Upgrade
To update current version see [Apt].\\
To upgrade to a new Linux version, you need to change the source for packages and run an update like before.
{{{
vi /etc/apt/sources.list
    deb http://ftp.debian.org/debian/ buster main
}}}
Note: check additional sources specified wihtin folder sources.list.d


!!MySQL / MariaDB
%%collapsebox-closed
! Get version => 10.3.27-MariaDB-0+deb10u1
{{{
mysql -u <user> -p
select version();
}}}
/%
! Upgrade / Storage
After upgrading from Debian 9 to 10, mysql was gone. I installed MariaDB on top:
{{{
apt-get install mariadb-server
(mysql_secure_installation)

Start: /etc/init.d/mysql
Config: folder /etc/mysql/...
Log: /var/log/mysql
Bin: 
    /usr/bin/mysql 
    /usr/bin/mysqladmin
    /usr/sbin/mysqld
Database: folder /var/lib/mysql
}}}

!!Java
%%collapsebox-closed
!Get version => OpenJDK 64-Bit Server VM (build 11.0.9.1+1-post-Debian-1deb10u2, mixed mode, sharing)
{{{
java -version
    openjdk version "11.0.9.1" 2020-11-04
    OpenJDK Runtime Environment (build 11.0.9.1+1-post-Debian-1deb10u2)
    OpenJDK 64-Bit Server VM (build 11.0.9.1+1-post-Debian-1deb10u2, mixed mode, sharing)
}}}
/%
! Storage
{{{
which java
    /usr/bin/java -> /etc/alternatives/java -> /usr/lib/jvm/java-11-openjdk-amd64/bin/java
    /usr/lib/jvm/default-java -> /usr/lib/jvm/java-1.11.0-openjdk-amd64 -> /usr/lib/jvm/java-11-openjdk-amd64
JAVA_HOME=/usr/lib/jvm/default-java
}}}


!!Apache Tomee
%%collapsebox-closed
!Get Version => TomEE webprofile 8.0.5 (Tomcat 9.0.39)
Not possible, it is [TomEE webprofile 8.0.5 TAR/GZ|https://tomee.apache.org/download-ng.html].\\
You can get the tomcat version:
{{{
cd <tomee_home>/lib 
java -cp catalina.jar org.apache.catalina.util.ServerInfo
Server version: Apache Tomcat/9.0.39
Server built:   Oct 6 2020 14:11:46 UTC
Server number:  9.0.39.0
OS Name:        Linux
OS Version:     4.19.0-13-amd64
Architecture:   amd64
JVM Version:    11.0.9.1+1-post-Debian-1deb10u2
JVM Vendor:     Debian
}}}
/%
!Upgrade / Storage
See [TomEE], upgrade via new installation/move old content.\\
[Download|https://tomee.apache.org/download-ng.html] TomEE webprofile TAR/GZ and {{{ tar xvf * }}}
Enable [Apache HTTP with Tomcat]\\
Note: NEW attribute address and secretRequired necessary !!!
{{{
vi <tomee_home>/conf/server.xml
    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8009" address="::1" protocol="AJP/1.3" redirectPort="8443" secretRequired="false" />
    <Connector port="8109" address="::1" protocol="AJP/1.3" redirectPort="8443" secretRequired="false" />
}}}
Improve start script
{{{
vi <tomee_home>/bin/catalina.sh
#Markus
JAVA_OPTS="$JAVA_OPTS -server -Xms1024m -Xmx6144m -Djava.awt.headless=true -Dfile.encoding=UTF-8"
JAVA_HOME=/usr/lib/jvm/default-java
}}}
Create Symlink
{{{
ln -s /markus/apache-tomee-webprofile-8.0.5 /markus/tomee 
}}}

{{{
/etc/init.d/tomee restart
}}}
!Webapps
Copy <tomee_home>/webapps
* EbelHome
* Homepage
{{{
    cp mariadb-java-client-2.7.1.jar <tomeeHome>/lib
    log4j ?
}}}
* [JSPWiki]
{{{
vi <tomeeHome>/lib/jspwiki-custom.properties
    jspwiki.applicationName=inetone
    jspwiki.fileSystemProvider.pageDir=/markus/jspWikiData
    jspwiki.workDir=/markus/tomee/temp
    jspwiki.basicAttachmentProvider.storageDir=/markus/jspWikiData
    jspwiki.pageProvider=VersioningFileProvider
    #jspwiki.searchProvider=LuceneSearchProvider
    jspwiki.searchProvider=BasicSearchProvider
}}}

!! vi configuration
Disable visual mode but keep syntax highlighting
{{{
vi ~/.vimrc
    set mouse-=a
    syntax on
}}}

!! Seafile Cloud
see [Cloud_SeaFile]