Karina's Tutoring Blog

How to do a Re-Capthca form in PHP

I will be explaining the following material assuming you have little or no experience in PHP, if that is not the case, skip the Ingredients Section:
I must say that to do this form there is a lot of "prep-work" but once you have all the ingredients you should be good to go:
Ingredients

A re-captcha public and private key, by going to re-captcha.com and signing up, etc.

After signing up you will be given a bunch of files for you to save

A form.php already working and with validation functions in JavaScript already implemented
(Since I assumed you have no...

Network Plus + Review for the exam

FTP uses 20 for data and 21 for control
SSH uses port 22 for ex. establish a remote connection to a client computer
Telnet uses port 23
SMTP uses 25
DNS uses 53
UDP 69 console port to a switch
HTTP uses 80
SMTP uses 110
POP3 uses 110
Port 119 allows the pass of newsfeeds
VoIp uses UDP Traffic
NTP uses 123
HTTPS uses 443 secure network device communications
IGMP will help reduce multicast flooding on a layer 2 switch
TLS ensures that data is transmitted securely over an IP network
HTTPS and SSH encrypt packets over the internet

IPv6
128 bits
IPv4
Four octets...