When I manually sftp using username and password it works fine, when using curl it fails. The same script will successfully connect to other servers with no problem. Because I can manually log in and other clients don't have a problem the server admins aren't much help.
Here is the curl failed attempt:
curl -v --insecure --user username:password sftp://someurl.com * Trying 199.187.***.***... * Connected to someurl.com (199.187.***.***) port 22 (#0) * SSH MD5 fingerprint: 6831eae63f230952a1775e0f67f80e7b * SSH authentication methods available: publickey,gssapi-keyex,gssapi with-mic,password * Using SSH public key file '(nil)' * Using SSH private key file '' * SSH public key authentication failed: Unable to extract public key from private key file: Unable to open private key file * Failure connecting to agent * Authentication failure * Closing connection 0 curl: (67) Authentication failure Here is the curl success on another url:
curl --insecure -v sftp://username:password@anotherurl.com * Rebuilt URL to: sftp://username:password@anotherurl.com/ * Trying 199.27.***.***... * Connected to anotherurl.com (199.27.***.***) port 22 (#0) * SSH MD5 fingerprint: bcf5632dc06c0353849b745822c4889a * SSH authentication methods available: password,publickey * Using SSH public key file '(nil)' * Using SSH private key file '' * SSH public key authentication failed: Unable to extract public key from private key file: Unable to open private key file * Initialized password authentication * Authentication complete drw-rw-rw- 3 user group 2048 Sep 27 2014 . * Connection #0 to host anotherurl.com left intact Here is the manual attempt on the original URL:
[ec2-user@ip-*** scripts]$ sftp -v username@someurl.com OpenSSH_6.2p2, OpenSSL 1.0.1k-fips 8 Jan 2015 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 50: Applying options for * debug1: Connecting to someurl.com [199.187.***.***] port 22. debug1: Connection established. debug1: identity file /home/ec2-user/.ssh/id_rsa type -1 debug1: identity file /home/ec2-user/.ssh/id_rsa-cert type -1 debug1: identity file /home/ec2-user/.ssh/id_dsa type -1 debug1: identity file /home/ec2-user/.ssh/id_dsa-cert type -1 debug1: identity file /home/ec2-user/.ssh/id_ecdsa type -1 debug1: identity file /home/ec2-user/.ssh/id_ecdsa-cert type -1 debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_6.2 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3 debug1: match: OpenSSH_5.3 pat OpenSSH_5* 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<3072<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: Server host key: RSA 68:31:ea:e6:3f:23:09:52:a1:77:5e:0f:67:f8:0e:7b debug1: Host 'someurl.com' is known and matches the RSA host key. debug1: Found key in /home/ec2-user/.ssh/known_hosts:6 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password debug1: Next authentication method: gssapi-keyex debug1: No valid Key exchange context debug1: Next authentication method: gssapi-with-mic debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug1: Unspecified GSS failure. Minor code may provide more information debug1: Unspecified GSS failure. Minor code may provide more information No Kerberos credentials available debug1: Next authentication method: publickey debug1: Trying private key: /home/ec2-user/.ssh/id_rsa debug1: Trying private key: /home/ec2-user/.ssh/id_dsa debug1: Trying private key: /home/ec2-user/.ssh/id_ecdsa debug1: Next authentication method: password username@someurl.com's password: debug1: Authentication succeeded (password). Authenticated to someurl.com ([199.187.***.***]:22). debug1: channel 0: new [client-session] debug1: Requesting no-more-sessions@openssh.com debug1: Entering interactive session. debug1: Sending environment. debug1: Sending env LANG = en_US.UTF-8 debug1: Sending subsystem: sftp Connected to someurl.com. sftp> ls incoming sftp> Any help from those smarter-than-me people would be greatly appreciated.