Fix IPTables IP authentication based PHP Script bug

$10-30 USD

Закрито

Опублікований

over 6 years ago

$10-30 USD

Оплачується при отриманні

I have a PHP front-end script that allows me to add authorized IP and expire date via IPtables. For example, if i want Iptables to allow this IP [login to view URL] to have access to the server , I would add this IP using the PHP script. The PHP script then adds the IP and the expiry date (unix time e.g 1 month from today would be: 1519510914) to the Iptables. The script works but sometimes, I have noticed that some IPs added just get removed before the expiry date. Am not sure if this a bug or scripting bug from the PHP or issue with the Iptables. I need a experienced Linux admin with PHP to fix this and make the script very reliable and stable. Only serious bidders only.... Thanks

ID проекту: 16120125

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Активність 6 yrs ago

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@dfrmex

Hi, can you share your php/shell script to check it, also your linux distro and version Thanks David

$111 USD за 1 день

5,0

(19 відгуки(-ів))

5,7

@dslc

Hi. There could be multiple causes for the rules being removed prematurely. If no mechanism is being used to save and restore the chain rules, for example, then any changes will be lost when the system is rebooted or iptables is restarted. Is an ancillary data store - e.g. an SQL database or CSV file - being used to store a list of the IP addresses and expiry dates? Or is the expiry date being stored in the firewall rule itself - e.g. using the 'time' IPtables extension? Rules which use the 'time' match extension (with --datestart and --datestop parameters) are not automatically removed when 'datestop' is passed, so the PHP script would have to be selectively removing them. It may be that the script is not examining or reading these rules correctly. You mention timestamps in the UNIX epoch format, for example, but iptables typically accepts and shows the timestamps in YYYY-MM-DDTHH:MM:SS form. How soon before the expiry date are the rules being removed? Timezones may also be an issue - depending on the time-frames involved and how accurate the timing needs to be. Is a CRON job being used to trigger the PHP script? I am based in Ireland - so my operating hours are a bit different to those in Canada.

$25 USD за 2 дні(-в)