Detects whether a given IPv6 string is within a reserved block, as defined on https://en.wikipedia.org/wiki/IPv6_address#Special_addresses Please note that this assume that the string given is already a valid IPv6 address - If IPv6 validation is important to you, please make sure you pass any strin...

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It skips the whole line if it contains searched string

只能输入5-20个以字母开头、可带数字、“_”、“.”的字串

https://wiki.freeradius.org/config/Users#special-attributes-used-in-the-users-file

Using two similar sets of /22 IP ranges (192.168.100.1/22 & 192.168.200.1/22); Select all IP's, ignoring only the Network & Broadcast IP's.

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Check if IP is a valid IP. http://happinesspig.com

Validate if card number is Visa card. Update the first digit to make it Master card. http://premiumpig.com

Password is between 6 - 10 chars including letters and/or digits. You can use maxlength in `` field to limit length http://www.cirrhosismedication.com http://www.pmsecret.com

Password is between 6 - 10 chars including letters and/or digits. You can use maxlength in `` field to limit length http://www.cirrhosismedication.com http://www.pmsecret.com