Tag Archives: dns

Slow Internet with Leopard

How to fix Slow Web Browsing and Slow Internet in Leopard (10.5.x) Symptoms Web pages load slowly in Safari or Firefox in Leopard. Web sites won’t load, only load partially, stop loading after a few hours. Slow DNS (domain name) lookup in Leopard. First load of web site is slow with “looking up domain” in… Read More »

Debugging Mac OS X DNS – tcpdump

Need to debug a slow Internet connection in OS X? Or simply have a desire to watch incoming and outgoing DNS (domain name service) queries in Leopard? Then tcpdump is your friend. Open a terminal window and use the following command: sudo tcpdump -i en1 -s 128 port 53 -i Sets which interface to listen… Read More »