Uly.me

cloud engineer

Tomcat Install

Tomcat requires JRE.

wget jre-8uversion-linux-x64.tar.gz
# or
apt-get install default-jdk

Install Tomcat 8 on Linux.

wget https://mirrors.gigenet.com/apache/tomcat/tomcat-8/v8.5.66/bin/apache-tomcat-8.5.66.tar.gz
tar zxpvf apache-tomcat-8.5.66.tar.gz
cd /opt/tomcat/apache-tomcat-8.5.66/bin/
./startup.sh

Status|Start|Stop|Restart Tomcat.

systemctl status tomcat8
systemctl start tomcat8
systemctl stop tomcat8
systemctl restart tomcat8

Winbind Fix

Here’s the process to restore Winbind.

Restore old config.

cp /etc/sssd/sssd.conf-xxxxxxx /etc/sssd/sssd.conf
cp /etc/krb5.conf-xxxxxxx /etc/krb5.conf

Disable SSSD. Authconfig creates /etc/nswitch.conf.

authconfig --disablesssd --disablesssdauth --updateall

Start Winbind.

service winbind start; service smb start; service nmb start

GCE Agent Bash

This is a Bash script to restart a service.

#!/bin/bash
 
SERVICE=google_osconfig_agent
AGENT=google-osconfig-agent
 
if (( $(ps -ef | grep -v grep | grep $SERVICE | wc -l) > 0 ))
then
    echo "$AGENT service running, everything is fine"
else
    echo "$AGENT is not running"
    echo "Restarting service"
    systemctl start $AGENT
    sleep 5s
    if (( $(ps -ef | grep -v grep | grep $SERVICE | wc -l) > 0 ))
    then
      sleep 2s
      echo "$AGENT service is now running"
    fi
fi