1.查看svcename

[db2inst1@db01 ~]$ db2 get dbm cfg | grep -i svcename
 TCP/IP Service name                          (SVCENAME) = DB2_db2inst1
 SSL service name                         (SSL_SVCENAME) =

2.如果没有svcename需要设置，最后面的SVCENAME可以自定义​

db2 update dbm cfg using svcename DB2_db2inst1

3.在/etc/service里面添加对应的通讯端口 

[root@db01 sqllib]# cat /etc/services | grep DB2_db2inst1
DB2_db2inst1    50000/tcp

4.查看是否有TCP/IP 

[db2inst1@db01 ~]$ db2set -all
[i] DB2AUTOSTART=YES
[g] DB2SYSTEM=db01
[g] DB2INSTDEF=db2inst1

5.如果没有TCPIP，需要设置

[g] DB2INSTDEF=db2inst1
[db2inst1@db01 ~]$ db2set DB2COMM=TCPIP
[db2inst1@db01 ~]$ db2set -all
[i] DB2COMM=TCPIP
[i] DB2AUTOSTART=YES
[g] DB2SYSTEM=db01
[g] DB2INSTDEF=db2inst1

6.设置完成后重启db2

db2stop
db2start

7.查看端口​

[db2inst1@db01 ~]$ netstat -an | grep 50000
tcp        0      0 0.0.0.0:50000               0.0.0.0:*                   LISTEN

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Linux,db2