CentOS下安裝FreeTDS

導讀

官方網站：http://www.freetds.org

下載地址：http://ibiblio.org/pub/Linux/ALPHA/freetds/stable/freetds-stable.tgz

這個軟件可以用Linux和Unix鏈接MS SQLServer和Sybase數據庫

安裝與配置

1. 首先下載FreeTDS安裝包到服務器

wget -c http://ibiblio.org/pub/Linux/ALPHA/freetds/stable/freetds-stable.tgz複製代碼

1. 解壓

tar -zxvf freetds-stable.tgz複製代碼

1. 編譯安裝
   1. 由於是編譯安裝因此確保機器有安裝gcc（可以使用yum進行安裝）

yum install gcc-c++
      yum install ncurses-devel複製代碼

1. 開始安裝

cd freetds-0.91/
      ./configure --prefix=/usr/local/freetds --with-tdsver=8.0 --enable-msdblib
      make && makeinstall複製代碼

`解釋：
          安裝freetds到目錄/usr/local/freetds：--prefix=/usr/local/freetds
          支持MSSQL2000：--with-tdsver=8.0 --enable-msdblib`複製代碼

1. FreeTDS默認安裝在/usr/local/freetds目錄當中，庫文件在相應的lib目錄下。

vim /etc/ld.so.conf加入一行 /usr/local/freetds/lib

1. 而後運行如下指令使更改生效：

ldconfig複製代碼

1. 測試鏈接

tsql -H MSSQL服務器服務IP -p 1433 -U MSSQL服務器登錄賬號 －P MSSQL服務器登錄密碼

$  tsql -H XXXXXX-p 1433 -U sa -P XXXXXX -D test  
   locale is "zh_CN.utf8"  
   locale charset is "UTF-8"  
   Default database being set to test  
   1> select @@version  
   2> go  
     
   Microsoft SQL Server 2008 R2 (RTM) - 10.50.1600.1 (Intel X86)  
           Apr  2 2010 15:53:02  
           Copyright (c) Microsoft Corporation  
           Data Center Edition on Windows NT 5.1 <X86> (Build 2600: Service Pack 3)  
     
   (1 row affected)複製代碼

問題

**Adaptive Server connection failed**複製代碼

locale is "en_US.UTF-8"
   locale charset is "UTF-8"
   using default charset "UTF-8"
   Error 20017 (severity 9):
           Unexpected EOF from the server
           OS error 115, "Operation now in progress"
   Error 20002 (severity 9):
           Adaptive Server connection failed
   There was a problem connecting to the server複製代碼

執行tsql -C

[root@thinkpa freetds-0.91]# tsql -C
   Compile-time settings (established with the "configure" script)
                               Version: freetds v0.91
                freetds.conf directory: /usr/local/etc
        MS db-lib source compatibility: no
           Sybase binary compatibility: no
                         Thread safety: yes
                         iconv library: yes
                           TDS version: 5.0
                                 iODBC: no
                              unixodbc: no
                 SSPI "trusted" logins: no
                              Kerberos: no複製代碼

發現freetds的版本是5.0，考慮到多是freetds版本的問題

兩種解決方式：

1. 修改全局TDS 版本號

找到`/usr/local/etc/freetds.conf`修改`[global]`下面的`tds version`爲`8.0`複製代碼

1. 鏈接時修改tds版本號

`TDSVER=7.0 tsql -H`複製代碼

整個鏈接命令則變爲：複製代碼

`tsql -H MSSQL服務器服務IP -p 1433 -U MSSQL服務器登錄賬號 －P MSSQL服務器登錄密碼`複製代碼

**Adaptive Server connection failed**複製代碼

"Cannot open server 'xxxxxxx' requested by the login. Client with IP    address 'xxxxxxxxx' is not allowed to access the server.  To enable       access, use the Windows Azure Management Portal or run                   sp_set_firewall_rule on the master database to create a firewall       rule for this IP address or address range.  It may take up to five       minutes for this change to take effect."
   Error 20002 (severity 9):
           Adaptive Server connection failed複製代碼

這個毋庸置疑了，找管理員開通白名單再訪問吧！