Troubleshooting
If you are unable to access your tenant's global URL, you can try flushing your DNS cache. Use the following procedure for your OS:
Windows 10/11
To flush your DNS cache on Windows, use the following steps:
- Open the command line.
- Type ipconfig /flushdnsand press Enter.
MacOS
To flush your DNS cache on MacOS, use the following steps:
- Open the Terminal application.
- Type sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponderand press Enter.
- Type your Mac password and press Enter.
For older versions of MacOS, use the following commands:
- El Capitan or later: sudo killall -HUP mDNSResponder
- Lion, Mountain Lion, and Mavericks: sudo killall -HUP mDNSResponder
- Snow Leopard: sudo dscacheutil –flushcache
- Leopard: sudo lookupd –flushcache
- Tiger: lookupd –flushcache
Linux
On most Linux systems, the DNS resolver is either systemd-resolved or dnsmasq. 
To determine which one your system uses, run $ sudo lsof -i :53 -S and view the output.
- If you're using - systemd-resolved:- Run $ sudo systemd-resolve --flush-cachesto flush the DNS cache.
- If you want to verify that the cache flushed successfully, run $ sudo systemd-resolve --statisticsand view the Current Cache Size.
 
- Run 
- If you're using - dnsmasq:- Run $ sudo killall -HUP dnsmasqto flush the DNS cache.
- If you want to verify that the cache flushed successfully, run $ sudo killall -USR1followed by$ tail -f -n1000 /var/log/syslog | grep "cache size".
 
- Run