In accessing this site you agree to these statements.
http://www.kloth.net/services/nslookup.php
CISCO.COM
AAAA: RFC 1035
AFSDB:
ATMA:
A RECORD: (a host address)
An A record is the most common type of DNS resource record. An "A" record, also called an "address" record, connects a domain name to an IP address (for example, 198.133.219.25). If there is a server on the Internet that is configured to handle traffic for this domain, you can enter the name of the domain (for example, www.cisco.com) and almost immediately, anyone connecting to that address is sent to the correct server.
Non-authoritative answer:
Name: cisco.com
Address: 198.133.219.25
CNAME: (the canonical name for an alias)
A CNAME record is a domain alias, and points a host name to another host name. CNAME records, short for "Canonical Name", create an alias from one Internet address to another. A CNAME entry for a domain points you at the real name of the system without the need for specifying the IP address of the server. However, CNAMEs will not work everywhere. If you create an MX record and the name used for the mail server was defined using a CNAME, you might lose email. Unless the IP address of the server you are pointing to changes often, you may want to consider using an A record instead of a CNAME.
cisco.com
origin = dns-rtp3.cisco.com
mail addr = postmaster.cisco.com
serial = 3640243
refresh = 7200 (2H)
retry = 1800 (30M)
expire = 864000 (1w3d)
minimum ttl = 86400 (1D)
ISDN:
NS: (an authoritative name server)
Name Server Record. An NS record declares that a given zone is served by a given name server. Every NS record is either a delegation record or an authority Record. If the name of the NS record is the name of the zone it appears in, it is an authority record. If the name of the NS record is that of a descendant zone, then it is a delegation record.
Non-authoritative answer:
cisco.com nameserver = ns2.cisco.com
cisco.com nameserver = ns1.cisco.com
Authoritative answers can be found from:
ns2.cisco.com internet address = 192.135.250.69
ns1.cisco.com internet address = 128.107.241.185
MB:
MINFO:
MG:
MR:
MX: (mail exchange)
A mail exchanger (MX) is a server setup to accept mail for your domain name and either holds it for delivering to your users or passes it to another mail server. To receive internet mail, your mail server should be SMTP compliant and run on port 25. "MX" ("Mail eXchanger") records are used to specify what server on the Internet is running the software configured to handle email for your domain. An MX record has three parts: your domain name, the name of the machine that will accept mail for the domain, and a preference value. The preference value lets you build some fault tolerance into your mail setup by setting the rank of each mail server when you have more than one. The lower preference server gets tried first, if two or more servers have the same preference; mail is sent to them "round robin".
Non-authoritative answer:
cisco.com preference = 20, mail exchanger = proxy9.cisco.com
cisco.com preference = 20, mail exchanger = proxy1.cisco.com
cisco.com preference = 20, mail exchanger = proxy2.cisco.com
cisco.com preference = 20, mail exchanger = proxy3.cisco.com
cisco.com preference = 10, mail exchanger = proxy0.cisco.com
cisco.com preference = 20, mail exchanger = proxy5.cisco.com
cisco.com preference = 20, mail exchanger = proxy6.cisco.com
Authoritative answers can be found from:
cisco.com nameserver = ns1.cisco.com
cisco.com nameserver = ns2.cisco.com
proxy9.cisco.com internet address = 192.135.250.71
proxy1.cisco.com internet address = 128.107.241.179
proxy2.cisco.com internet address = 128.107.241.180
proxy3.cisco.com internet address = 128.107.241.181
proxy0.cisco.com internet address = 128.107.241.178
proxy5.cisco.com internet address = 64.103.36.137
proxy6.cisco.com internet address = 203.41.198.245
ns1.cisco.com internet address = 128.107.241.185
ns2.cisco.com internet address = 192.135.250.69
PTR: (a domain name pointer)
Pointer Record. Also called a reverse record. A PTR record associates an IP address with a canonical name. PTR records should point to a name that can be resolved back to the IP address. The name of the pointer record is not the IP address itself, but is the IP address’ four IP octets in reverse order followed by IN-ADDR.ARPA. If a mail server checks back to verify that the name matches the Ip it checks here.
cisco.com
origin = dns-rtp3.cisco.com
mail addr = postmaster.cisco.com
serial = 3640243
refresh = 7200 (2H)
retry = 1800 (30M)
expire = 864000 (1w3d)
minimum ttl = 86400 (1D)
RP:
RT:
SRV:
SOA:
Non-authoritative answer:
cisco.com
origin = dns-rtp3.cisco.com
mail addr = postmaster.cisco.com
serial = 3640243
refresh = 7200 (2H)
retry = 1800 (30M)
expire = 864000 (1w3d)
minimum ttl = 86400 (1D)
Authoritative answers can be found from:
cisco.com nameserver = ns1.cisco.com
cisco.com nameserver = ns2.cisco.com
ns1.cisco.com internet address = 128.107.241.185
ns2.cisco.com internet address = 192.135.250.69
TXT: (text strings)
Text Record: Strictly informational, not functional. Used to provide up to 255 characters of free form text, hopefully about the zone. Multiple TXT records are permitted but their order is not necessarily retained, a bad forum for presenting War and Peace.
cisco.com
origin = dns-rtp3.cisco.com
mail addr = postmaster.cisco.com
serial = 3640243
refresh = 7200 (2H)
retry = 1800 (30M)
expire = 864000 (1w3d)
minimum ttl = 86400 (1D)
WKS: (a well known service description)
Well Known Service Record. Experimental, not yet adopted or used by any browser. WKS is generalized version of the MX record. Which is not just for mail but for any service. Examples would be POP, HTTP and FTP. If adopted, it will allow greater flexibility in resolving names from IP addresses and will lessen some of the problems cause by native round robin load sharing in servers.
X25:
ANY:
Non-authoritative answer:
cisco.com nameserver = ns1.cisco.com
cisco.com nameserver = ns2.cisco.com
cisco.com internet address = 198.133.219.25
cisco.com preference = 10, mail exchanger = proxy0.cisco.com
cisco.com preference = 20, mail exchanger = proxy5.cisco.com
cisco.com preference = 20, mail exchanger = proxy6.cisco.com
cisco.com preference = 20, mail exchanger = proxy9.cisco.com
cisco.com preference = 20, mail exchanger = proxy1.cisco.com
cisco.com preference = 20, mail exchanger = proxy2.cisco.com
cisco.com preference = 20, mail exchanger = proxy3.cisco.com
cisco.com
origin = dns-rtp3.cisco.com
mail addr = postmaster.cisco.com
serial = 3640243
refresh = 7200 (2H)
retry = 1800 (30M)
expire = 864000 (1w3d)
minimum ttl = 86400 (1D)
Authoritative answers can be found from:
cisco.com nameserver = ns1.cisco.com
cisco.com nameserver = ns2.cisco.com
ns1.cisco.com internet address = 128.107.241.185
ns2.cisco.com internet address = 192.135.250.69
proxy0.cisco.com internet address = 128.107.241.178
proxy5.cisco.com internet address = 64.103.36.137
proxy6.cisco.com internet address = 203.41.198.245
proxy9.cisco.com internet address = 192.135.250.71
proxy1.cisco.com internet address = 128.107.241.179
proxy2.cisco.com internet address = 128.107.241.180
proxy3.cisco.com internet address = 128.107.241.181