========================================================== Linux, Mac OS ========================================================== ========================================================== Problem-solving ========================================================== resolv.conf If ping doesn't work, and nslookup has a ten-second delay, look for a 'search' line in resolv.conf and comment it out (it might work if localdomain is in accordance with the nameserver) - a problem with kubuntu 9.04 on una. ========================================================== ========================================================== dnsmasq ========================================================== Ubuntu: leases stored in /var/lib/misc/dnsmasq.leases ========================================================== ========================================================== Networking Utilities ========================================================== nm-tool # Linux - 'Network Manager Tool' # shows nameserver ("DNS") amongst full information ========================================================== dig dig hostname dig @server name type # @nameserver bypasses dnsmasq running on the client; # - enables selection of an upstream nameserver # "any" for type also shows text records, if any dig +short hostname txt # display text record (if any) associated with hostname: ========================================================== nslookup # Interactive mode: nslookup - nameserver # where nameserver can be ip address # or nslookup > server nameserver ========================================================== ifconfig ========================================================== ========================================================== Windows ========================================================== ipconfig /all # ipconfig gives very complete information nslookup - nameserver # works like linux version # dig is not available nbtstat -a hostname # netbios capabilities of hostname