regex - Regular expression for URL Validator -


i have issue regular expression. need validate following url

http://50.244.41.23/   http://myserver/

i have used following expressions

regex urlrx = new regex(@"(http|https)://([0-9]*)", regexoptions.ignorecase);  regex urlrx = new regex(@"(http|https)://(\b(?:\d{1,3}\.){3}\d{1,3}\b)", regexoptions.ignorecase);

both working extent, doesn't serve exact purpose. gives success following strings, want expression fail such strings..

http://50.244.41.23\  http://256.244.41.23/  http://256.244.41.23.123/

can create apt regex validation above url.

thanks sebastian

here example regexes matching ipv4 addresses; "accurate" versions match valid addresses: http://answers.oreilly.com/topic/318-how-to-match-ipv4-addresses-with-regular-expressions/

by adding little more, should able match urls in form you're looking for. should match first (valid) ip address in question, not last (invalid) 3:

^https?://(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)/$


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