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    each time a new curl object was created, modprobe would spawn, checking net-pf-10 to evaluate IPv6 status.

    wat

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      Linux seems to have a few “touch the network stack and magic will happen” edges. This automatism of kernel module loading vaguely reminded me of this: http://backstage.soundcloud.com/2012/08/shoot-yourself-in-the-foot-with-iptables-and-kmod-auto-loading/

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        I might be wrong, but this probably has something to do with automatic kernel module loading. Although I have no idea why they had that enabled on a production server. Perhaps the OS had it enabled by default and they didn’t realize.

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          This might refer to pycurl’s Curl objects (assuming that bitly uses python as the rest of their blog seems to suggest content-wise).