无法使用 IPv6 通过 SSH 推送/拉取 bitbucket

问题描述 投票：0回答：2

当我可以推/拉到 bitbucket 时：

  • 通过 ssh 密钥从我的工作计算机
    id_rsa_bitbucket_work
  • 从我的笔记本电脑，但仅当通过 ssh 密钥登录 VPN (Cisco AnyConnect) 时
    id_rsa_bitbucket
    。我的 VPN 有一个静态 IP。
  • 始终使用 https。

当我无法推/拉到 bitbucket 时：

  • 在未连接 VPN 的情况下，通过 ssh 密钥从我的笔记本电脑
    ida_rsa_bitbucket
    。
  • 不使用 VPN 时，从我的工作网络上的笔记本电脑，即使我名义上与使用 VPN 位于同一网络上。

我的

~/.ssh/config
中的适当条目是：

Host bitbucket
     HostName bitbucket.org
     User git
     IdentityFile ~/.ssh/id_rsa_bitbucket

无论我使用什么网络/VPN，通过 SSH 连接到 github 存储库始终有效。

我已检查以确保：

  • 我的 SSH 代理正在运行并且已加载正确的密钥。
  • 无论 VPN 设置如何，我的 SSH 代理都会分发相同的密钥。

未登录VPN时

ssh -Tv bitbucket
的输出为：

OpenSSH_6.9p1, LibreSSL 2.1.8
debug1: Reading configuration data /Users/fcarter/.ssh/config
debug1: /Users/fcarter/.ssh/config line 1: Applying options for bitbucket
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug1: Connecting to bitbucket.org [2401:1d80:1010::150] port 22.
debug1: Connection established.
debug1: identity file /Users/fcarter/.ssh/id_rsa_bitbucket type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/fcarter/.ssh/id_rsa_bitbucket-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.9
debug1: Remote protocol version 2.0, remote software version conker_1.0.284-7b46313 app-127
debug1: no match: conker_1.0.284-7b46313 app-127
debug1: Authenticating to bitbucket.org:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-sha2-256 none
debug1: kex: client->server aes128-ctr hmac-sha2-256 none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:zzXQOXSRBEiUtuE8AikJYKwbHaxvSc0ojez9YXaGp1A
debug1: Host 'bitbucket.org' is known and matches the RSA host key.
debug1: Found key in /Users/fcarter/.ssh/known_hosts:12
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/fcarter/.ssh/id_rsa_bitbucket
debug1: Server accepts key: pkalg ssh-rsa blen 535
debug1: Authentication succeeded (publickey).
Authenticated to bitbucket.org ([2401:1d80:1010::150]:22).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 4048, received 1776 bytes, in 10.1 seconds
Bytes per second: sent 401.8, received 176.3
debug1: Exit status -1

它似乎可以连接并进行身份验证（通过 IPv6？），但退出时出现错误。

登录我的 VPN 时 

ssh -Tv bitbucket
的输出是：

OpenSSH_6.9p1, LibreSSL 2.1.8
debug1: Reading configuration data /Users/fcarter/.ssh/config
debug1: /Users/fcarter/.ssh/config line 1: Applying options for bitbucket
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 21: Applying options for *
debug1: /etc/ssh/ssh_config line 56: Applying options for *
debug1: Connecting to bitbucket.org [2401:1d80:1010::151] port 22.
debug1: connect to address 2401:1d80:1010::151 port 22: Permission denied
debug1: Connecting to bitbucket.org [104.192.143.3] port 22.
debug1: Connection established.
debug1: identity file /Users/fcarter/.ssh/id_rsa_bitbucket type 1
debug1: key_load_public: No such file or directory
debug1: identity file /Users/fcarter/.ssh/id_rsa_bitbucket-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_6.9
debug1: Remote protocol version 2.0, remote software version conker_1.0.284-7b46313 app-125
debug1: no match: conker_1.0.284-7b46313 app-125
debug1: Authenticating to bitbucket.org:22 as 'git'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-sha2-256 none
debug1: kex: client->server aes128-ctr hmac-sha2-256 none
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ssh-rsa SHA256:zzXQOXSRBEiUtuE8AikJYKwbHaxvSc0ojez9YXaGp1A
debug1: Host 'bitbucket.org' is known and matches the RSA host key.
debug1: Found key in /Users/fcarter/.ssh/known_hosts:12
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering RSA public key: /Users/fcarter/.ssh/id_rsa_bitbucket
debug1: Server accepts key: pkalg ssh-rsa blen 535
debug1: Authentication succeeded (publickey).
Authenticated to bitbucket.org ([104.192.143.3]:22).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
logged in as faustin315.

You can use git or hg to connect to Bitbucket. Shell access is disabled.
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 4048, received 1984 bytes, in 0.2 seconds
Bytes per second: sent 16284.6, received 7981.4
debug1: Exit status 0

它似乎已连接并进行身份验证（通过 IPv4？），一切都很好。

更新： 在 bitbucket 的网站上发现 this issues 后，我尝试将 

104.192.143.2 bitbucket.org
添加到我的 
/etc/hosts
文件中。这并没有解决问题。

git ssh bitbucket vpn ipv6
2个回答
30
投票

在 Bitbucket 支持的大量帮助后更新：

经过更多研究，问题似乎出在我的路由器端 (Linksys E3200)，并且在某种程度上与 IPv6 有关。我访问纯 IPv6 站点没有任何问题，并且 github 一切正常（这是因为 github 仅支持 IPv4）。然而，有一些东西被过滤掉了，SSH 需要正常工作。如果我直接插入调制解调器并运行 

ssh -Tvv bitbucket
，它将通过 IPv6 正确进行身份验证。

为了解决这个问题（当我购买新路由器时），我通过将 

AddressFamily inet
添加到我的 
~/.ssh/config file
来强制与 bitbucket 的连接仅使用 IPv4（感谢：https://stackoverflow.com/a/35113901/7735643）。因此，bitbucket 的更新条目现在为：

Host bitbucket
     HostName bitbucket.org
     User git
     IdentityFile ~/.ssh/id_rsa_bitbucket
     AddressFamily inet
0
投票

如果有人需要这个，可以添加（在上面的答案中）：

... 连接超时 10 ...

可以帮忙。

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