问题
I'm trying to connect to a MS SQL Server instance using tsql (to troubleshoot not being able to connect with django-pymssql).
I can connect fine to the server (running on Amazon RDS, latest SQL Server version from on there) from a VM running SQL Server management studio, but from my native Ubuntu 15.10 env I get a login failed error.
Using the following:
tsql -H <hostname> -p 1433 -U <user> -P <mypassword>
I get:
locale is "en_GB.UTF-8"
locale charset is "UTF-8"
using default charset "UTF-8"
Msg 18456 (severity 14, state 1) from EC2AMAZ-U1TAK71 Line 1:
"Login failed for user 'sa'."
Error 20002 (severity 9):
Adaptive Server connection failed
There was a problem connecting to the server
As I can connect in management studio with mixed mode auth using the same creds I'm suspecting this isn't the real error.
Anyone have any ideas how I can troubleshoot?
tsql -C shows:
Compile-time settings (established with the "configure" script)
Version: freetds v0.91
freetds.conf directory: /etc/freetds
MS db-lib source compatibility: no
Sybase binary compatibility: yes
Thread safety: yes
iconv library: yes
TDS version: 4.2
iODBC: no
unixodbc: yes
SSPI "trusted" logins: no
Kerberos: yes
Thanks loads for any pointers.!
(Accidentally posted this to AskUbuntu so have moved here. Sorry).
回答1:
Answering my own question. Turns out it was down to the password being too long. I experimented with it, and any password longer than 30 characters didn't work. Seems to be a known issue with freetds.
Thanks.
来源：https://stackoverflow.com/questions/35332944/tsql-login-failed-but-management-studio-can-connect