✎ William Park [GTALUG Wiki]

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====== William Park ======
email: <opengeometry@yahoo.ca>
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==== PDF Tables ====

* **ASCII table** -- ''man ascii'' is good enough for one-off lookup.  But, if you need a permanent PDF table, here is something I created: {{ :user:william:ascii.pdf |}}.  The control character names are mostly generics, but what's included are the names used by Epson's ESCPOS interpreter.

* **Netmask** -- I could never remember the decimal number for various netmasks.  So, I created a little table: {{ :user:william:netmask.pdf |}}

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==== Getting External IP ====

Here are some ways to get your external IP using command-line.

* Websites that return IP text:

curl -sS http://myexternalip.com/raw

curl -sS http://icanhazip.com/

curl -sS http://checkip.amazonaws.com/

curl -sS http://ipinfo.io/ip/

curl -sS http://ipecho.net/plain

curl -sS http://bot.whatismyipaddress.com/

curl -sS http://whatismyip.akamai.com/

curl -sS http://diagnostic.opendns.com/myip

curl -sS http://ifconfig.ca/

* Websites that return IP buried in webpage:

lynx -dump http://ip4.me/ | sed -ne '/You are connecting with an IPv4 Address of/ {n;p}'

lynx -dump http://checkip.dyndns.org/ | awk '/Current IP Address:/ {print $4}'

lynx -dump http://ipchicken.com/ | awk '/Name Address:/ {print $4}'

lynx -dump http://ipchickenhawk.com/ | sed -ne '/Current IP Address/{n;p}'

lynx -dump http://whatismyip.host/ | sed -ne '/Your IP v4 address:/ {n;n;p}'

lynx -dump http://whatismyip.net/ | awk '/IP Address:/ {print $3}'

lynx -dump http://checkip.org/ | awk '/Your IP Address:/ {print $4}'

lynx -dump http://checkmyip | awk '$1=="Host" {print $2}'

lynx -dump http://whatismyip.org/homepage/ | sed -ne '/^Your IP Address:/{n;n;p}'

lynx -dump "http://www.google.ca/search?q=what+is+my+ip" | sed -ne '/Your public IP address/{x;p;x}' -e 'h'

lynx -dump http://monip.org/ | awk '/IP :/ {print $3}'

* Special DNS query:

dig @resolver1.opendns.com myip.opendns.com +short

dig @kwvoip.ca my.ip +short

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