DNS _ WINS DIFFERENCE
WINS | DNS | |
WINS maps NetBIOS names to IP Addresses | DNS maps Hostnames to IP Addresses | |
To find the
netBIOS names your PC has registered type "nbtstat -n" at a command prompt and press enter |
To
identify your computers Hostname type "hostname" at a command prompt and press enter |
|
NetBIOS name is a 16 byte address | Hostnames can be up to 255 charachters in length | |
WINS was always used by organisations for name resolution on their local network | ||
NetBIOS names
are located through a series of steps that begins with checking the local cach |
||
LMHosts file | HOST FILE | |
WINS is platform dependent | DNS is platform independent | |
WINS supports dynamic IP addresses | DNS supports static IP addresses | |
WINS supports incremental reproduction of the data for any modifications | DNS copies the entire database. | |
WINS does not support TCP/IP application services | DNS supports all TCP/IP application services | |
What is the DNS cache? | ||
When you type a web address into your web browser and press Enter, you're sending a query to a DNS server. If the query is successful, the website you want opens; if not, you'll see an error message. A record of these successful and unsuccessful queries is stored in a temporary storage location on your computer called the DNS cache. DNS always checks the cache before querying any DNS server, and if a record is found that matches the query, DNS uses that record instead of querying the server. This makes queries faster and decreases network and Internet traffic. | ||
dnsmgmt.msc | Set-DnsServerRecursion -Enable 0 | |
ipconfig /flushdns | ||
net stop dnscache | dnscmd <Server name> /Config /NoRecursion 1 | |
ipconfig /registerdns | ||
What is scavenging? | Finding and deleting unwanted records. | |
What is the main purpose of SRV records ? | ||
SRV records are used in locating hosts that provide certain network services. | ||
If you wish to stop XP from placing negative entries into cache, you can make this change in your registry. | ||
1. Goto HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ Dnscache\Parameters | ||
2. Build a new DWORD value called NegativeCacheTime and give it a value of 0 |
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