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P4 Server Administration Documentation | 2025.2

# Hostname vs. IP address

Try setting `P4PORT` to the service’s IP address instead of its hostname. For example, instead of using:

    P4PORT=host.domain:1666

try using:

    P4PORT=1.2.3.4:1666

with your site-specific IP address and port number.

On most systems, you can determine the IP address of a host by invoking:

    $ ping hostname

If `p4 info` responds immediately when you use the IP address, but not when you use the hostname, the problem is likely related to DNS.

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