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Tarik Billa

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firewall

Recaptcha – Availability in China [closed]

September 23, 2023 by Tarik

i can’t even open the Recaptcha page you linked to without VPN. i’ve been in Beijing the last two years. assuming you’re not here and/or don’t know very much about the infrastructure situation in the PRC: i’m not aware of any service of Google’s that is reliably reachable and fast from the mainland. they are … Read more

Categories firewall Tags firewall, recaptcha Leave a comment

iptables block access to port 8000 except from IP address

January 21, 2023 by Tarik

This question should be on Server Fault. Nevertheless, the following should do the trick, assuming you’re talking about TCP and the IP you want to allow is 1.2.3.4: iptables -A INPUT -p tcp –dport 8000 -s 1.2.3.4 -j ACCEPT iptables -A INPUT -p tcp –dport 8000 -j DROP

Categories firewall Tags firewall, iptables Leave a comment

Tarik Billa

Software Engineer
tarikbilla@gmail.com
+8801884414000
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