Yum on it-grossniklaus.ch

Alte Kernel gleich entfernen (package-cleanup --oldkernels)

Mon, 01 Jan 0001 00:00:00 +0000

welche Kernel haben wir zurzeit installiert?

rpm -q kernel

falls package-cleanup nicht installiert

sudo yum install yum-utils

alte Kernel entfernen

sudo package-cleanup --oldkernels --count=2

# in Zukunft immer automatisch entfernen
# /etc/yum.conf
installonly_limit=2

EPEL Repository

Mon, 01 Jan 0001 00:00:00 +0000

http://www.cyberciti.biz/faq/installing-rhel-epel-repo-on-centos-redhat-7-x/

sudo yum install epel-release

danach z.B.:

sudo yum install phpMyAdmin
sudo yum install rlwrap

Installation Oracle-xe-11.2

Mon, 01 Jan 0001 00:00:00 +0000

export LANG=C
sudo yum update

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# MATE benötigt weniger Resourcen als GNOME
sudo yum groupinstall "X Window system"
sudo yum install epel-release
sudo yum --enablerepo=epel -y groups install "MATE Desktop"
sudo systemctl set-default graphical.target

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# etwas Komfort
sudo yum install bash-completion
sudo yum install emacs mc
sudo yum install nmap wget
# sudo yum install epel-release
sudo yum install bash-completion-extras


sudo sh -c "echo '
[google-chrome]
name=google-chrome - \$basearch
baseurl=http://dl.google.com/linux/chrome/rpm/stable/\$basearch
enabled=1
gpgcheck=1
gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub
' > /etc/yum.repos.d/google-chrome.repo"

# sudo yum info google-chrome-stable
sudo yum install google-chrome-stable 



sudo rpm --import https://packages.microsoft.com/keys/microsoft.asc
sudo sh -c 'echo -e "[code]\nname=Visual Studio Code\nbaseurl=https://packages.microsoft.com/yumrepos/vscode\nenabled=1\ngpgcheck=1\ngpgkey=https://packages.microsoft.com/keys/microsoft.asc" > /etc/yum.repos.d/vscode.repo'
yum check-update
sudo yum install code 

# für CentOS (aber nicht CERN)
# wget https://centos7.iuscommunity.org/ius-release.rpm
# rpm -Uvh ius-release.rpm
# yum install git2u

sudo yum install git

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# virtualbox tools
sudo yum install dkms
sudo yum install kernel-headers kernel-devel

# virtualbox tools => use
sudo usermod --append --groups vboxsf zfi

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# OracleXE prerequisites
cat /proc/sys/kernel/shmmax
cat /proc/sys/kernel/shmall

sudo sh -c 'echo -e "kernel.shmmax=2147483648" >> /etc/sysctl.conf'
sudo sh -c 'echo -e "kernel.shmall=2097152"    >> /etc/sysctl.conf'
sudo sysctl -p  /etc/sysctl.conf


# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# swap (file)
sudo mkdir /var/swap/
#sudo dd if=/dev/zero of=/var/swap/swapfile bs=1024 count=524288
sudo dd if=/dev/zero of=/var/swap/swapfile bs=1024 count=2097152
sudo chmod 600 /var/swap/swapfile
sudo mkswap    /var/swap/swapfile
sudo swapon    /var/swap/swapfile

sudo sh -c 'echo -e "/var/swap/swapfile  swap swap  pri=1000 0 0" >> /etc/fstab'
sudo swapon

sudo yum install libaio bc unzip flex net-tools 
unzip -q oracle-xe-11.2.0-1.0.x86_64.rpm.zip
sudo rpm -ivh Disk1/oracle-xe-11.2.0-1.0.x86_64.rpm
sudo /etc/init.d/oracle-xe configure
sudo usermod --append --groups dba zfi
rm -rf Disk1/

cd /u01/app/oracle/product/11.2.0/xe/bin
. ./oracle_env.sh
. /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh
sqlplus /nolog
exit

sqlplus / as sysdba
ALTER SYSTEM SET MEMORY_TARGET     = 800M SCOPE=spfile;
ALTER SYSTEM SET MEMORY_MAX_TARGET = 930M SCOPE=spfile;
ALTER PROFILE DEFAULT LIMIT PASSWORD_LIFE_TIME UNLIMITED;

startup force
show parameter target

unzip apex_18.1.zip
sudo mv apex/ /opt/

cd /opt/apex
sqlplus / as sysdba
@/u01/app/oracle/product/11.2.0/xe/apex/apxremov.sql
exit

sqlplus / as sysdba
@apexins SYSAUX SYSAUX TEMP /i/
exit

sqlplus / as sysdba
@apex_epg_config.sql /opt
exit

sqlplus / as sysdba
@apxchpwd
ADMIN
myPassword

sqlplus / as sysdba
SELECT version FROM dba_registry where comp_id='APEX';
exit

# The structure of the link to the Application Express administration services is as follows:
# http://host:port/pls/apex/apex_admin (Oracle HTTP Server with mod_plsql)
# http://host:port/apex/apex_admin     (Oracle XML DB HTTP listener with the embedded PL/SQL gateway)
# http://host:port/apex/apex_admin     (Oracle REST Data Services)
#  
# The structure of the link to the Application Express development interface is as follows:
# http://host:port/pls/apex (Oracle HTTP Server with mod_plsql)
# http://host:port/apex     (Oracle XML DB HTTP listener with the embedded PL/SQL gateway)
# http://host:port/apex     (Oracle REST Data Services)

sqlplus / as sysdba
EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);
exit

# https://tecadmin.net/install-and-configure-haproxy-on-centos/
sudo yum install haproxy
sudo mkdir /etc/haproxy/ssl
sudo openssl req -x509 -nodes -days 3000 -newkey rsa:2048 -keyout /etc/haproxy/ssl/server.key -out /etc/haproxy/ssl/server.crt
sudo sh -c 'cat  /etc/haproxy/ssl/server.key /etc/haproxy/ssl/server.crt >  /etc/haproxy/ssl/server.pem'

# neues haproxy.cfg
haproxy -c -f /etc/haproxy/haproxy.cfg

sudo emacs /etc/rsyslog.conf
$ModLoad imudp
$UDPServerRun 514
$UDPServerAddress 127.0.0.1

sudo emacs /etc/rsyslog.d/haproxy.conf
local2.*    /var/log/haproxy.log

# chkconfig haproxy on
systemctl enable haproxy
systemctl start haproxy

service rsyslog restart
service haproxy restart

# sqldeveloper benötigt javaFX => openJDK geht nicht mehr (für CentOS)
sudo rpm -Uvh jdk-8u172-linux-x64.rpm
sudo rpm -Uvh sqldeveloper-18.2.0.183.1748-1.noarch.rpm
sudo rpm -Uvh datamodeler-18.2.0.179.0756-1.noarch.rpm

sqldeveloper
# => /usr/java/default

unzip sqlcl-18.2.0.zip 
sudo mv sqlcl /opt/

IUS Community Project

Mon, 01 Jan 0001 00:00:00 +0000

Durch das Einbinden von “Third Party Repositories” kann ein System gefährdet werden:

was rechtfertigt das Vertrauen?
welche Software wird ausgetascht?
ist der entstehende “Mix” wirklich zueinander kompatibel?

Ein Projekt scheint mir die naheliegenden Bedenken besonders ernst zu nehmen:

Sicher wird man ein zertifiziertes produktives System (RHES) nicht gefährden wollen - aber es kann sinnvoll sein ein CentOS basiertes System “Cherry Picking”-artig mit neueren Software-Komponenten zu versehen.

mariadb

Mon, 01 Jan 0001 00:00:00 +0000

sudo yum install mariadb-server mariadb
sudo systemctl start mariadb.service
sudo systemctl enable mariadb.service

sudo yum install mysql-connector-java

VirtualBox Guest Additions

Mon, 01 Jan 0001 00:00:00 +0000

sudo yum install epel-release
sudo yum install dkms

VirtualBox Guest Additions installieren

yum groups

Mon, 01 Jan 0001 00:00:00 +0000

yum update
yum grouplist
yum groupinstall "GNOME-Desktop"

export LANG=C
yum groups list

Available environment groups:
   Minimal Install
   Compute Node
   Infrastructure Server
   File and Print Server
   Basic Web Server
   Virtualization Host
   Server with GUI
   GNOME Desktop
   KDE Plasma Workspaces
   Development and Creative Workstation

Available Groups:
   Compatibility Libraries
   Console Internet Tools
   Development Tools
   Graphical Administration Tools
   Legacy UNIX Compatibility
   Scientific Support
   Security Tools
   Smart Card Support
   System Administration Tools
   System Management

yum groupinstall "GNOME Desktop"

yum repolist

Mon, 01 Jan 0001 00:00:00 +0000

Wir wollen sehen, aus welchen Repositories ein RHEL/CentOS basiertes System die Software bezieht:

ls -la /etc/yum.repos.d/

-rw-r--r--.   1 root root  1664 17. Mai  15:53 CentOS-Base.repo
-rw-r--r--.   1 root root  1309 17. Mai  15:53 CentOS-CR.repo
-rw-r--r--.   1 root root   649 17. Mai  15:53 CentOS-Debuginfo.repo
-rw-r--r--.   1 root root   630 17. Mai  15:53 CentOS-Media.repo
-rw-r--r--.   1 root root  1331 17. Mai  15:53 CentOS-Sources.repo
-rw-r--r--.   1 root root  4768 17. Mai  15:53 CentOS-Vault.repo
-rw-r--r--.   1 root root   314 17. Mai  15:53 CentOS-fasttrack.repo
-rw-r--r--.   1 root root  1050  2. Okt  2017  epel-testing.repo
-rw-r--r--.   1 root root   951  2. Okt  2017  epel.repo

Klar kann man nun jedes Repo-File betrachten, aber es gib einen yum Befehl hierzu: