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patio11's profile
Patrick McKenzie
Patrick McKenzie
Patrick McKenzie
@patio11

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Patrick McKenzie

@patio11

I work for the Internet, at @stripe, mostly on accelerating startups. Opinions here are my own.

東京都 Tokyo
kalzumeus.com
Joined February 2009

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    Patrick McKenzie‏ @patio11 14 Jan 2016
    • Report Tweet
    • Report NetzDG Violation

    Today I learned that SSH will, by default, try sending every SSH key you have to every server you connect to.

    9:40 AM - 14 Jan 2016
    • 91 Retweets
    • 125 Likes
    • Jacob Farkas Daniel Rentfro ❄️ Will Strafach ParalelPort Ari agtmadcat shadey Glenn Østerud SamC
    21 replies 91 retweets 125 likes
      1. New conversation
      2. Patrick McKenzie‏ @patio11 14 Jan 2016
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        Replying to @patio11

        "But what if you use 'IdentityFile ~/.ssh/some_unique_key' ?" You'd think, right! But did you remember to use "IdentitiesOnly yes" ?

        5 replies 8 retweets 31 likes
      3. Matthew Lehner‏ @matthewpearse 14 Jan 2016
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        Replying to @patio11

        @patio11 @tcannonfodder Wrote a great post about this, coming from a slightly different angle a while back: https://thomascannon.me/posts/fix-ssh-keys/ …

        2 replies 1 retweet 4 likes
      4. 1 more reply
      1. New conversation
      2. Tomás Touceda‏ @touced 14 Jan 2016
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        Replying to @patio11

        @patio11 even if you specify identityfile?

        1 reply 0 retweets 0 likes
      3. Patrick McKenzie‏ @patio11 14 Jan 2016
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        Replying to @touced

        @touced Beat you to it :)

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Russel Winder‏ @russel_winder 16 Jan 2016
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        Replying to @patio11

        @glaforge But isn't sending SSH public keys to servers the whole point of SSH? @patio11

        1 reply 0 retweets 1 like
      3. Micha‏ @michabailey 16 Jan 2016
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        Replying to @russel_winder

        @russel_winder @glaforge @patio11 The issue is that you may be using multiple keys in an attempt to have multiple separate identities.

        0 replies 0 retweets 1 like
      4. End of conversation
      1. Jan Schaumann‏ @jschauma 14 Jan 2016
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        Replying to @patio11

        Jan Schaumann Retweeted Jan Schaumann

        @patio11 which is fun becausehttps://twitter.com/jschauma/status/646389516257894401 …

        Jan Schaumann added,

        Jan Schaumann @jschauma
        A quick reminder about ssh agent forwarding... pic.twitter.com/Xt6YDqee1g
        0 replies 2 retweets 0 likes
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      1. Firstyear‏ @Erstejahre 14 Jan 2016
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        Replying to @patio11

        @patio11 @SwiftOnSecurity This is why you need a .ssh/config that limits the Identity you send to different domains, and a dummy key for *

        0 replies 0 retweets 2 likes
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      1. ⓣⓞⓜ‏ @tomtastic 14 Jan 2016
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        Replying to @patio11

        @patio11 you know this is just the public key right? The ... 'public' ... key.

        0 replies 0 retweets 2 likes
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      1. Michael Heap‏ @mheap 14 Jan 2016
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        Replying to @patio11

        @patio11 I'm a fan of https://github.com/ccontavalli/ssh-ident … for this reason

        0 replies 0 retweets 1 like
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