修改informix数据库服务监听端口

操作系统版本：

$ oslevel -r
#本文中$代表以informix用户操作

5100-02

数据库版本：

$ onstat -

Informix Dynamic Server Version 9.40.FC1

环境描述：数据库主机有块网卡，分别连接不同的网段，如下所示：

$ ifconfig -a

en0: flags=4e080863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,PSEG>

inet 192.168.1.135 netmask 0xffffffff broadcast 192.168.1.255

inet6 fe80::202:55ff:fe9a:d927/64

tcp_sendspace 131072 tcp_recvspace 65536

en2: flags=4e080863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,PSEG>

inet 172.16.1.228 netmask 0xfffffff0 broadcast 172.16.1.255

inet6 fe80::204:acff:fe57:7b45/64

目前informix数据库服务监听端口为1526，服务起在en2（172.16.1.228）网卡上，如下所示：

$ netstat -an | grep 1526

Active Internet connections (including servers)

Proto Recv-Q Send-Q Local Address Foreign Address (state)

tcp4 0 0 172.16.1.228.1526 *.*
LISTEN

现要更改informix数据库服务监听端口为1435，服务起在en0（192.168.1.135）网卡上。步骤如下：

1、备份sqlhosts文件

$ cp $INFORMIXDIR/etc/sqlhosts $INFORMIXDIR/etc/sqlhosts.bak

2、修改sqlhost文件

首先查看sqlhosts文件内容：

$ cat $INFORMIXDIR/etc/sqlhosts

#**************************************************************************

#

# INFORMIX SOFTWARE, INC.

#

# PROPRIETARY DATA

#

# THIS DOCUMENT CONTAINS TRADE SECRET DATA WHICH IS THE PROPERTY OF

# INFORMIX SOFTWARE, INC. THIS DOCUMENT IS SUBMITTED TO RECIPIENT IN

# CONFIDENCE. INFORMATION CONTAINED HEREIN MAY NOT BE USED, COPIED OR

# DISCLOSED IN WHOLE OR IN PART EXCEPT AS PERMITTED BY WRITTEN AGREEMENT

# SIGNED BY AN OFFICER OF INFORMIX SOFTWARE, INC.

#

# THIS MATERIAL IS ALSO COPYRIGHTED AS AN UNPUBLISHED WORK UNDER

# SECTIONS 104 AND 408 OF TITLE 17 OF THE UNITED STATES CODE.

# UNAUTHORIZED USE, COPYING OR OTHER REPRODUCTION IS PROHIBITED BY LAW.

#

#

# Title: sqlhosts.demo

# Sccsid: @(#)sqlhosts.demo 9.2 7/15/93 15:20:45

# Description:

# Default sqlhosts file for running demos.

#

#**************************************************************************

dbcs onsoctcp 172.16.1.228 1526

编辑$INFORMIXDIR/etc/sqlhosts文件，把172.16.1.228修改为192.168.1.135，1526修改为1435，保存退出。

3、重启informix数据库

$ onmode -ky #关闭informix数据库

$ oninit -v
#重启informix数据库

4、检查informix数据库服务监听端口

$ netstat -an | grep 1435

Active Internet connections (including servers)

Proto Recv-Q Send-Q Local Address Foreign Address (state)

tcp4 0 0 192.168.1.135.1435 *.*
LISTEN

由上见知，informix数据库服务监听端口已成功修改为1435，服务启在en0（192.168.1.135）网卡上。