连接到MSSQL数据库的问题

[FreeTDS]
Description = ODBC for Microsoft SQL
Driver      = /usr/local/lib/libtdsodbc.so
UsageCount  = 1
Threading   = 2

~> isql MSSQL sa pass

+---------------------------------------+
| Connected!                            |
|                                       |
| sql-statement                         |
| help [tablename]                      |
| quit                                  |
|                                       |
+---------------------------------------+
SQL> 

~> tsql - s该软件- u ' sa ' p '通过

locale is "en_US.UTF-8"
locale charset is "UTF-8"
using default charset "UTF-8"
1> 

~> osql - s该sa - u - p将

checking shared odbc libraries linked to isql for default directories...
strings: '': No such file
    trying /tmp/sql ... no
    trying /tmp/sql ... no
    trying /etc ... OK
checking odbc.ini files
    reading /home/toolplas/.odbc.ini
[MSSQL] not found in /home/toolplas/.odbc.ini
    reading /etc/odbc.ini
[MSSQL] found in /etc/odbc.ini
found this section:
    [MSSQL]
    Description     = MS SQL connection to PRODUCTION database
    Driver          = FreeTDS
    Database        = PRODUCTION
    Server          = TPSACC
    UserName        = sa
    Password        = pass
    Trace           = No
    TDS_Version     = 8.0
    Port            = 54488
looking for driver for DSN [MSSQL] in /etc/odbc.ini
  found driver line: "  Driver          = FreeTDS"
  driver "FreeTDS" found for [MSSQL] in odbc.ini
found driver named "FreeTDS"
"FreeTDS" is not an executable file
looking for entry named [FreeTDS] in /etc/odbcinst.ini
  found driver line: "  Driver      = /usr/local/lib/libtdsodbc.so"
  found driver /usr/local/lib/libtdsodbc.so for [FreeTDS] in odbcinst.ini
/usr/local/lib/libtdsodbc.so is an executable file
"Server" found, not using freetds.conf
Server is "TPSACC"
osql: no IP address found for "TPSACC"

在PHP中我有:

$conn = new PDO ("dblib:host=TPSACC;dbname=PRODUCTION","$username","$pw");

…或…

$conn = new PDO ("dblib:host=TPSACC;port=54488;dbname=PRODUCTION","$username","$pw");

它们都返回这个错误:

SQLSTATE[HY000] Unable to connect: Adaptive Server is unavailable or does not exist (severity 9) 

我已经被困在这里几天了，不能完全弄清楚为什么只有一半的连接实际工作。

任何和所有的帮助是真的很感激，谢谢!

编辑:这与那个问题不同，我在评论中解释过，但我会在这里重新发布:

这个问题是端口从1433更改了。我的也改变了，我修复了这个问题，端口现在是54488，自从这个改变以来，tsql和isql一直在工作。但是，它仍然不能解决osql和PHP的问题。