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Can I run OpenNMS as a non-root user?

April 26, 2017non-root opennms run user

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Can I run OpenNMS as a non-root user?

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Currently (as of version 1.1.3) only tomcat can run as a non-root user (with some twiddling). The difficulty with the core of OpenNMS is that these components need to run as root to be able to bind to low-numbered ports or generate network traffic that requires root: • the ICMP poller (root is needed to open up a raw socket to send/receive ICMP); • the DHCP poller (it needs to bind to a port < 1024); • the SNMP trap daemon (it needs to bind to a port < 1024).