Jenkins server is not accessible by host name (ip address)

It turned out that launch agent was configured to listen only 127.0.0.1 (or localhost).To fixed that edit jenkins agent's plist:

nano /Users/admin/Library/LaunchAgents/homebrew.mxcl.jenkins.plist

and modify httpListenAddress to 0.0.0.0 instead of 127.0.0.1

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs$<plist version="1.0">  <dict>    <key>Label</key>    <string>homebrew.mxcl.jenkins</string>    <key>ProgramArguments</key>    <array>      <string>/usr/bin/java</string>      <string>-Dmail.smtp.starttls.enable=true</string>      <string>-jar</string>      <string>/usr/local/opt/jenkins/libexec/jenkins.war</string>      <string>--httpListenAddress=0.0.0.0</string>      <string>--httpPort=8080</string>    </array>    <key>RunAtLoad</key>    <true/>  </dict></plist>

The correct location of the file to edit is /usr/local/opt/jenkins/homebrew.mxcl.jenkins.plist

Found the answer here

By starting jenkins using sudo /etc/init.d/jenkins restart instead of sudo service jenkins start started the browser access. I hope it will be helpful.