Useful Sysadmin Tools And links:
Nominet
Registrar Resources:
http://registrars.nominet.org.uk/
To identify your PC Public IP address click link
http://www.whatismyip.com/
Or
http://checkip.dyndns.com
IP Checks
Whois, Reverse PTR And Location Lookup:
http://www.ipchecking.com/
IP Address
Lookup:
http://ip-address-lookup-v4.com/
Test your IPv6
connectivity:
http://test-ipv6.com/
Or
http://ipv6test.google.com/
TCP IP
Utilities:
http://www.tcpiputils.com/
Mail Server
And IP Blacklist Check:
http://www.mxtoolbox.com/
Senderbase
http://www.senderbase.org/
AOL Postmaster
Website:
http://postmaster.aol.com/
Spamhaus IP
Blacklist Check:
http://www.spamhaus.org/
DNSBL Check IP
Spam Database Lookup:
http://www.dnsbl.info/
SORBS Spam And
Open Relay Blocking System:
http://www.sorbs.net/
DNS And Mail
Server Health Report Check:
http://www.intodns.com/
DNS Test And Check:
http://www.dnssy.com/
Alternative
ISP DNS Resolvers (Note: ISP resolvers have less hops):
Google DNS: 8.8.8.8 and 8.8.4.4
Norton DNS: 198.153.192.50 and 198.153.194.50
Open DNS : 208.67.222.222 and 208.67.220.220
Popular Broadband
Internet Speed Test Sites:
www.speedtest.net -
www.speedguide.net
www.speedtest.bbmax.co.uk
-
www.thinkbroadband.com
www.speedtester.bt.com
-
www.speedtest.btwholesale.com
ISP Network
Status Websites:
BT Network Status -
BT Fault Tracking And Repair -
BT Wholesale Availability Checker
Demon Network Status
Easynet Network Status
TalkTalk Business Network Status
Virgin Network Status
-
Virgin Speed Upgrade