Centos 8 Portal Server manual install

Centos 8 Portal Server manual install instructions

Prepare your system

Install Centos 8 minimal server.

Disable SELinux in /etc/selinux/config

Network & System Tuning

Open ports 443 and 80 on firewall:

firewall-cmd --zone=public --add-service=http
firewall-cmd --zone=public --add-service=https
firewall-cmd --zone=public --permanent --add-service=http
firewall-cmd --zone=public --permanent --add-service=https
firewall-cmd --reload

In /etc/sysctl.conf add:

# TCP/IP Tuning
# =============
fs.file-max = 524288
net.ipv4.tcp_max_syn_backlog = 2048
net.ipv4.tcp_synack_retries = 3
net.ipv4.tcp_max_orphans = 65536
net.ipv4.tcp_fin_timeout = 30
net.ipv4.ip_local_port_range = 16384 60999
net.core.somaxconn = 256
net.core.rmem_max = 1048576
net.core.wmem_max = 1048576

in /etc/security/limits.conf add:

# TCP/IP Tuning
# =============
* soft     nproc          262140
* hard     nproc          262140
* soft     nofile         262140
* hard     nofile         262140
root soft     nproc          262140
root hard     nproc          262140
root soft     nofile         262140
root hard     nofile         262140

Reboot system and check with ulimit -n : The output should be 262140

Install dependencies

Install SQLite

sudo yum update
yum install sqlite

Install haveged

yum -y install epel-release
yum repolist
yum install haveged

Other tools

yum install unzip
yum install tar

Install JDKs (As root)

Download OpenJDK 11 and 8 (TODO: URLs) and then:

cd /opt/OpenJDK
tar xzvf openjdk-11.0.1_linux-x64_bin.tar.gz
update-alternatives --install "/usr/bin/java" "java" "/opt/OpenJDK/jdk-11.0.1/bin/java" 1
update-alternatives --install "/usr/bin/javac" "javac" "/opt/OpenJDK/jdk-11.0.1/bin/javac" 1
update-alternatives --install "/usr/bin/keytool" "keytool" "/opt/OpenJDK/jdk-11.0.1/bin/keytool" 1
update-alternatives --install "/usr/bin/jar" "jar" "/opt/OpenJDK/jdk-11.0.1/bin/jar" 1
update-alternatives --set "java" "/opt/OpenJDK/jdk-11.0.1/bin/java"
update-alternatives --set "javac" "/opt/OpenJDK/jdk-11.0.1/bin/javac"
update-alternatives --set "keytool" "/opt/OpenJDK/jdk-11.0.1/bin/keytool"
update-alternatives --set "jar" "/opt/OpenJDK/jdk-11.0.1/bin/jar"

tar xzvf openjdk-8u41-b04-linux-x64-14_jan_2020.tar.gz

Java installation validation steps

java -version
openjdk version "11.0.1" 2018-10-16/

opt/OpenJDK/java-se-8u41-ri/bin/java -version
openjdk version "1.8.0_41"

Install Real Load

Create the DKFQS account

sudo adduser -m dkfqs 

su - dkfqs
cd /home/dkfqs
mkdir portal
cd /home/dkfqs/portal
mkdir backup bin config db htdocs jks log scripts usersLib usersData

Copy various files into place

cp /opt/install_sw/Common/*.jar /home/dkfqs/portal/bin/
cp /opt/install_sw/V4.2.11/PortalServer/bin/DKFQS.jar /home/dkfqs/portal/bin/
cp /opt/install_sw/V4.2.11/PortalServer/config/* /home/dkfqs/portal/config/

Copy the htdocs.jar file to the htdocs directory /home/dkfqs/portal/htdocs

Navigate to /home/dkfqs/portal/htdocs and un-jar the file:

jar -xvf htdocs.jar
rm htdocs.jar  (and delete the jar)
rm -R META-INF (delete the META-INF directory)

Create SQLite DBs

Copy the following files to the db directory /home/dkfqs/portal/db

  • CreateNewAdminDB.sql
  • CreateNewOperationsDB.sql
  • CreateNewUsersDB.sql

Login with the dkfqs account, navigate to /home/dkfqs/portal/db and create the Admin, Operations and the Users DB:

sqlite3 AdminAccounts.db < CreateNewAdminDB.sql
sqlite3 Operations.db < CreateNewOperationsDB.sql
sqlite3 Users.db < CreateNewUsersDB.sql

Allow privileged port binding

Allow un-privileged accounts to bind to privileged ports (80, 443)

sysctl net.ipv4.ip_unprivileged_port_start=0

Create services

Create the /home/dkfqs/portal/bin/portal.sh file:


case "$1" in
    if [ -f /home/dkfqs/portal/log/DKFQS.log ]; then
       mv /home/dkfqs/portal/log/DKFQS.log /home/dkfqs/portal/log/DKFQS.log_$(date +"%Y_%m_%d_%H_%M")
    CLASSPATH=/home/dkfqs/portal/bin/bcpkix-jdk15on-160.jar:/home/dkfqs/portal/bin/bcprov-jdk15on-160.jar:/home/dkfqs/portal/bin/bctls-jdk15on-160.jar:/home/dkfqs/portal/bin/DKFQS.jar;export CLASSPATH;nohup java -Xmx2048m -DdkfqsProperties=/home/dkfqs/portal/config/dkfqs.properties -DrewriteProperties=/hom
e/dkfqs/portal/config/rewrite.properties -Dnashorn.args="--no-deprecation-warning" com.dkfqs.server.internal.StartDKFQSserver 1>/home/dkfqs/portal/log/DKFQS.log 2>&1 &
       PID=`ps -o pid,args -e | grep "StartDKFQSserver" | egrep -v grep | awk '{​​​​print $1}​​​​'`
       if [ ! -z "$PID" ] ; then
          echo "DKFQS stopped with pid(s) : $PID"
          kill -9 ${​​​​PID}​​​​ 1> /dev/null 2>&1
       PID=`ps -o pid,args -e | grep "StartDKFQSserver" | egrep -v grep | awk '{​​​​print $1}​​​​'`
       if [ ! -z "$PID" ] ; then
          echo "DKFQS running with pid(s) : $PID"
          echo "No DKFQS running"
    echo "Usage: /etc/init.d/DKFQS {​​​​start|stop|status}​​​​"
    exit 1

exit 0

Create the unit file

Create the file /etc/systemd/system/DKFQSPortal.service with the below content:

Description=DKFQS portal

ExecStart=/home/dkfqs/portal/bin/portal.sh start
ExecStop=/home/dkfqs/portal/bin/portal.sh stop


Start the services

systemctl daemon-reload
systemctl enable DKFQSPortal.service
systemctl start DKFQSPortal.service
journalctl -ex (... to check that no errors occured..)