How to configure a proxy for Talend Data Catalog on Linux

[KiranKumari_Biradar]

To configure a proxy for a Talend Data Catalog server on Linux:

1. Stop the Talend Data Catalog application server
2. Locate the Talend Data Catalog Tomcat configuration:
   
   On Linux, the Talend Data Catalog server typically runs in a Tomcat‑style container under the installation directory (for example, /opt/talend/talend-data-catalog).
   
   The key paths are $TDC_HOME/bin/setenv.sh or equivalent startup script, often in /bin/ or /bin/linux_x86_64.
   
   
3. Configure the JVM proxy properties:
   
   
   1. Edit the $TDC_HOME/bin/setenv.sh of the Talend Data Catalog server on Linux.
   2. Add the JVM arguments for the proxy: -Dhttps.proxyHost= <IP or HostName> -Dhttps.proxyPort=3128
      
      Example:
      
      

      JAVA_OPTS="-D\"catalina.data=${CATALINA_DATA}\" -D\"connector.port=${M_CONNECTOR_PORT}\" -D\"shutdown.port=${M_SHUTDOWN_PORT}\" -D\"server.fqdn=${M_SERVER_FQDN}\" -Dlog4j2.disableJmx=true -Djava.awt.headless=true -Dhttp.proxyHost=<IP or HostName> -Dhttp.proxyPort=3128 -Dhttps.proxyHost= <IP or HostName> -Dhttps.proxyPort=3128"

4. Restart
5. To verify if the Talend Data Catalog application server uses the proxy, run the following command:
   
   

   $ps -ef | grep java

   
   This will output the following:
   
   [root@RHEL8-QCDI01 ~]# ps -ef | grep java
   root       23155       1  6 May11 ?        12:28:04 /home/TDC-8-20250107/TalendDataCatalog/tomcat/bin/../../jre/bin/java -Dnop -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Xms256M -Xmx4096M -Dcatalina.data=/home/TDC-8-20250107/TalendDataCatalog/tomcat/bin/../../data -Dconnector.port=11480 -Dshutdown.port=11481 -Dserver.fqdn=localhost -Dlog4j.configurationFile=/home/TDC-8-20250107/TalendDataCatalog/tomcat/bin/../../tomcat/conf/log4j2.xml -Dlog4j2.disableJmx=true -Djava.awt.headless=true -Dhttp.proxyHost=10.76.203.106 -Dhttp.proxyPort=3128 -Dhttps.proxyHost=10.76.203.106 -Dhttps.proxyPort=3128 -Djdk.tls.ephemeralDHKeySize=2048 - [...]
   
   

Note the effect using a proxy will have if you have SAML/SSO enabled. See Configuring the SAML server for details. 

Environment

• Talend Data Catalog Server
• Squid Proxy Server