Image RemovedImage Added📙 You will learn
How to install and configure ThreadFix on CentOS. While these instructions should apply to RHEL as well, the following instructions were developed and tested against CentOS 7.
Prerequisites
Audience: IT Professional and/or End User
Difficulty: Intermediate
Time needed: Approximately 60 minutes
Tools required: OpenJDK 8, latest version of OpenJDK 11 or OpenJDK8 or Oracle Java 8, at least Tomcat 7.0.59, MySQL
Install Javalatest version of Tomcat 8.5, MySQL or Microsoft SQL Server
Install Java
To check the currently-installed version, run the java -version
command.
OpenJDK 11
Expand |
---|
title | OpenJDK 11 - Click to expand |
---|
|
ThreadFix version 2.7.9 and newer can run on OpenJDK |
11 (or 11 (version 11.0.5 or newer), OpenJDK 8, or Oracle Java 8 |
/ OpenJDK 8, shown in the sections below |
) To check the currently-installed version, run the java -version
command. If you don't have OpenJDK 11 installed, you can install it by running the following command: |
Install OpenJDK 11 |
---|
Code Block |
---|
sudo yum install java-11-openjdk |
If you have multiple JDKs installed, run the sudo alternatives --config java command and select the version installed above. |
OpenJDK 8
Expand |
---|
title | OpenJDK 8 - Click to expand |
---|
|
ThreadFix version 2.7 and newer can run on OpenJDK |
8 (8 or Oracle Java 8, shown in the next section |
) To check the currently-installed version, run the java -version
command. If you don't have OpenJDK 8 installed, you can install it by running the following command: |
Install OpenJDK 8 |
---|
Code Block |
---|
sudo yum install java-1.8.0-openjdk |
If you have multiple JDKs installed, run the sudo alternatives --config java command and select the version installed above. |
Oracle Java 8
Expand |
---|
title | Oracle Java 8 - Click to expand |
---|
|
To deploy versions of ThreadFix 2.6.2.6 and older, visit the Oracle JDK download page here and look for the .rpm version of the Linux x64 distribution. Copy the download link and wget it. Example wget command to download the jdk-8u192-linux-x64.rpm file: |
Download Oracle JDK Code Block |
---|
wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "https://download.oracle.com/otn-pub/java/jdk/8u192-b12/750e1c8617c5452694857ad95c3ee230/jdk-8u192-linux-x64.rpm" |
Install with yum localinstall.
Example using the file downloaded above: |
Install Oracle JDK |
Code Block |
---|
sudo yum localinstall jdk-8u192-linux-x64.rpm |
The JDK should be installed at /usr/java/<jdk-version> (e.g., /usr/java/jdk1.8.0_192 ). You can verify the install using the java -version command. |
If you have multiple JDKs installed, run the sudo alternatives --config java command and select the version installed above. |
ThreadFix requires at least Tomcat 7.0.59, but we recommend recommends the latest version of Tomcat 8.5. Note versions prior to 8.5. 78 are not recommended due to security exploit CVE-2022-22965.
Download the latest version of Tomcat 8.5.
Note |
---|
For the current version of ThreadFix, apt-get yum is not recommended for installing Tomcat. Getting the latest version of Tomcat 8.5 directly with wget is the preferred method. The link to the tarball is provided by the official Apache Tomcat site and it is a mirror site hosting the most recent version. |
Download Tomcat 8.5 |
httpmirrorsadvancedhosterscomapache/5795/bin/apache-tomcat-8.5. |
57If the above command doesn't work, the download may have been moved/updated. Browse to https://tomcat.apache.org/download-80.cgi to determine the most recent version available.
2. Create a directory to install Tomcat, then extract the tar ball there
Install Tomcat 8.
Code Block |
---|
sudo mkdir /opt/tomcat
sudo tar xvf apache-tomcat-8*tar.gz -C /opt/tomcat --strip-components=1 |
3. Create a group and user to manage the Tomcat execution.
Create Tomcat User and Group |
Code Block |
---|
sudo groupadd tomcat
sudo useradd -s /bin/false -g tomcat -d /opt/tomcat tomcat |
Web.xml Update
For compatibility with Tomcat 8.5.43 and newer, make the following update:
Open the <tomcat-deploy>/conf/web.xml file in a text editor with elevated privilege and edit the default servlet as follows:
Expand |
---|
title | Old - Click to expand |
---|
|
Code Block |
---|
<servlet>
<servlet-name>default</servlet-name>
<servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>listings</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet> |
|
Expand |
---|
title | New - Click to expand |
---|
|
Code Block |
---|
<servlet>
<servlet-name>default</servlet-name>
<servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>listings</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>fileEncoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet> |
(Note that the above adds the fileEncoding parameter and sets its value to UTF-8.) |
Enable Tomcat Service
If you want tomcat to run as a service that you can have start automatically at boot, the preferred method is using systemd. Create a file at /etc/systemd/system/tomcat.service
with the following content. CentOS systemd Tomcat Service:
Expand |
---|
title | Enable Tomcat Service - Click to expand |
---|
|
Code Block |
---|
# Systemd unit file for tomcat
[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.service network.target
[Service]
Type=forking
Environment=JAVA_HOME=/usr
Environment=CATALINA_PID=/opt/tomcat/temp/tomcat.pid
Environment=CATALINA_HOME=/opt/tomcat
Environment=CATALINA_BASE=/opt/tomcat
Environment='CATALINA_OPTS=-Xms2G -Xmx8G -server -XX:+UseParallelGC'
Environment='JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom'
ExecStart=/opt/tomcat/bin/startup.sh
ExecStop=/bin/kill -15 $MAINPID
User=tomcat
Group=tomcat
UMask=0007
RestartSec=10
Restart=always
[Install]
WantedBy=multi-user.target |
Reload Systemd to load the Tomcat unit file and enable the tomcat.service. Code Block |
---|
sudo systemctl daemon-reload
sudo systemctl enable tomcat.service |
|
SSL/TLS Implementation
For information on configuring Tomcat to run over SSL/TLS, refer to the following article.
Once you've followed the steps above, you're ready to install ThreadFix. Please see the ThreadFix Installation guide to complete your deployment.
Related articles📄 CentOS Enterprise Setup
📄 Ubuntu Enterprise Setup
📄 Mac OS Enterprise Setup
📄 ThreadFix Installation
📄 Windows Enterprise Setup