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allthegoodnamesaretaken

by on Jun.01, 2016, under Networking

$ whois allthegoodnamesaretaken.com
[Querying whois.verisign-grs.com]
[Redirected to whois.godaddy.com]
[Querying whois.godaddy.com]
[whois.godaddy.com]
Domain Name: allthegoodnamesaretaken.com
Registry Domain ID: 1961304002_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Update Date: 2015-09-17T20:10:42Z
Creation Date: 2015-09-17T20:10:42Z
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Airport Extreme IPv6 Relay Error

by on Jun.07, 2014, under Apple, Networking

Unless you are currently using IPv6, be sure that your AirPort Extreme is configured to use the “Link-local only” setting for IPv6.

You can set this using the AirPort Utility:

AirPort Utility > Select the Extreme > Edit
Internet > Internet Options > Configure IPv6: Link-local only

On your Mac:

System Preferences > Network > Wi-Fi > Advanced
TCP/IP > Configure IPv6: Link-local only

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How-To: Get External IP Address from the Command Line

by on Sep.09, 2013, under Networking

Commands:
curl ifconfig.me
or
dig +short myip.opendns.com @resolver1.opendns.com

Examples:
dervish@mint15 ~ $ curl ifconfig.me
88.198.110.185

dervish@mint15 ~ $ dig +short myip.opendns.com @resolver1.opendns.com
64.130.245.84

NOTE: The curl command will return the proxy server address if one is being used.

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EMAIL Port Reference Table

by on May.11, 2012, under Networking

Incoming Server Type:

Port:

POP3

110

IMAP

143

POP3 with SSL

995

IMAP with SSL

993


Outgoing Server Type:

Port:

SMTP

25, 587,

8025, or 2525

SMTP with SSL

465

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Which application is using a Linux network port?

by on Feb.01, 2011, under Linux, Networking

Use: netstat -tlnp | grep port

Example using netstat:
[root@trioxin2 jhopkins]# netstat -tlnp | grep 80
tcp 0 0 :::80 :::* LISTEN 4246/httpd

The above example reveals that the httpd process with a PID of 4246 is running on port 80.

To verify, you can run the ps command and grep for the application name or PID:
[root@trioxin2 jhopkins]# ps -ef | grep 4246
root 4246 1 0 13:35 ? 00:00:00 /usr/sbin/httpd
apache 4249 4246 0 13:35 ? 00:00:00 /usr/sbin/httpd
apache 4250 4246 0 13:35 ? 00:00:00 /usr/sbin/httpd
apache 4251 4246 0 13:35 ? 00:00:00 /usr/sbin/httpd
apache 4252 4246 0 13:35 ? 00:00:00 /usr/sbin/httpd
apache 4253 4246 0 13:35 ? 00:00:00 /usr/sbin/httpd
apache 4254 4246 0 13:35 ? 00:00:00 /usr/sbin/httpd
apache 4255 4246 0 13:35 ? 00:00:00 /usr/sbin/httpd
apache 4256 4246 0 13:35 ? 00:00:00 /usr/sbin/httpd

Example using fuser:
# fuser 80/tcp
80/tcp: 3130 7057 11956 11957 11958 26771 26801 30170 32433 32434 32766

# ps -ef | grep 3130
root 3130 1 0 Mar02 ? 00:01:19 /usr/sbin/apache2 -k start
www-data 7057 3130 0 Apr01 ? 00:01:18 /usr/sbin/apache2 -k start
www-data 11956 3130 0 Apr04 ? 00:00:23 /usr/sbin/apache2 -k start
www-data 11957 3130 0 Apr04 ? 00:00:38 /usr/sbin/apache2 -k start
www-data 11958 3130 0 Apr04 ? 00:00:42 /usr/sbin/apache2 -k start
www-data 26771 3130 0 Apr03 ? 00:00:54 /usr/sbin/apache2 -k start
www-data 26801 3130 0 Apr03 ? 00:00:50 /usr/sbin/apache2 -k start

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