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When I try to login to my cygwin 1.7.1 system using ssh and public key authentication to my domain account, I get the error: 3 [main] sshd 3128 C:\cygwin\usr\sbin\sshd.exe: *** fatal error - could not load ws2_32, Win32 error 126 Using procmon, I see that sshd.exe is denied access to important WinSock DLLs (see trace below). This problem does not occur when I do the same experiment using a local account. It also does not occur if I use password authentication with my domain account. "Time of Day","Process Name","PID","Operation","Path","Result","Detail" "2:33:29.4409400 PM","sshd.exe","3128","QueryOpen","C:\WINDOWS\system32\ws2_32.dll","ACCESS DENIED","" "2:33:29.4414579 PM","sshd.exe","3128","QueryOpen","C:\WINDOWS\system32\ws2_32.dll","ACCESS DENIED","" "2:33:29.4439342 PM","sshd.exe","3128","QueryOpen","C:\WINDOWS\system32\psapi.dll","ACCESS DENIED","" "2:33:29.4444776 PM","sshd.exe","3128","QueryOpen","C:\WINDOWS\system32\psapi.dll","ACCESS DENIED","" "2:33:29.4466767 PM","sshd.exe","3128","RegOpenKey","HKLM\Software\Microsoft\Windows NT\CurrentVersion\GRE_Initialize","ACCESS DENIED","Desired Access: Read" A similar result occurs when I use a tty instead of a pipe to an Emacs buffer: MOINDBBURGER:~/Desktop$ ssh localhost Last login: Mon Jan 4 14:24:34 2010 from localhost 5 [main] -bash 2532 C:\cygwin\bin\bash.exe: *** fatal error - couldn't dynamically determine load address for 'WSAGetLastError' (handle 0xFFFFFFFF), Win32 error 126 Connection to localhost closed. MOINDBBURGER:~/Desktop$ ssh -v localhost OpenSSH_5.3p1, OpenSSL 0.9.8l 5 Nov 2009 Pseudo-terminal will not be allocated because stdin is not a terminal. debug1: Reading configuration data /Users/rgburger/.ssh/config debug1: Reading configuration data /etc/ssh_config debug1: Connecting to localhost [127.0.0.1] port 22. debug1: Connection established. debug1: identity file /Users/rgburger/.ssh/identity type -1 debug1: identity file /Users/rgburger/.ssh/id_rsa type 1 debug1: identity file /Users/rgburger/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3 debug1: match: OpenSSH_5.3 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.3 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host 'localhost' is known and matches the RSA host key. debug1: Found key in /Users/rgburger/.ssh/known_hosts:18 debug1: ssh_rsa_verify: signature correct 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,password,keyboard-interactive debug1: Next authentication method: publickey debug1: Offering public key: /Users/rgburger/.ssh/id_rsa debug1: Server accepts key: pkalg ssh-rsa blen 149 debug1: Authentication succeeded (publickey). debug1: channel 0: new [client-session] debug1: Requesting no-more-sessions@openssh.com debug1: Entering interactive session. debug1: client_input_channel_req: channel 0 rtype exit-signal reply 0 debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0 3 [main] sshd 3128 C:\cygwin\usr\sbin\sshd.exe: *** fatal error - could not load ws2_32, Win32 error 126 debug1: channel 0: free: client-session, nchannels 1 Transferred: sent 1840, received 2296 bytes, in 0.1 seconds Bytes per second: sent 16727.3, received 20872.7 debug1: Exit status -1
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