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Editorial Team
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Asked: 2026-06-05T11:55:30+00:00

I have blocked a port 8070 by the following command: sudo iptables -A INPUT

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I have blocked a port 8070 by the following command:

sudo iptables -A INPUT -p tcp --destination-port 8070 -j DROP

Now, when I deploy my web application in embedded Tomcat 7 on port 8070, and If I access through the URL http://localhost:8070/app or http://192.168.1.3:8070/app, I always get the exception Connection timed out. That is usual because I have blocked that port.

But when I access the URL http://192.168.1.3:8070/app through the chrome browser, I get the Connection Timed out error message. That is also as expected. But When I try to access http://localhost:8070/app through chrome browser, It gives me successful response. This is unusual.

Why I am able to access through browser on localhost, but not through Apache HttpClient library?

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1 Answer

  1. Editorial Team

    Chrome uses IPv6 so it can resolve localhost using that, the other examples are using IPv4. So check your hosts file if it contains an ::1 entry for localhost?

    You can try with no IPv6 for chrome as well with this command line flag:

    --disable-ipv6

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