Oracle database under Linux plsql connect virtual machines fail
plsql connect virtual machines under Linux Oracle database failed
September 9, 2017 09:10:23 watch dfdfdf Reads: 187 Tags: oraclelinux More
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Because it is the first installation of Oracle on Linux, many operations are the first to find the problem-solving process wasted a lot of time.
First, D: \ oracle64 \ oracle_jimulu \ product \ 11.2.0 \ dbhome_1 \ tnsnames.ora file under NETWORK \ ADMIN directory add a listener is configured correctly.
Problems encountered:
①ORACLE listener listener the Supports NO Services at The
②TNS-12541 TNS-12560 TNS-00511 Linux Error: 111
③ORA-01034: ORACLE not the Available ORA-27101
According to an abnormal experience, according to three articles were resolved in this record and gratitude.
http://blog.csdn.net/snowfoxmonitor/article/details/47705885
http://blog.csdn.net/reda0821/article/details/7821007
http://jingyan.baidu.com/article/5552ef47c73eef518ffbc908.html?qq-pf-to=pcqq.c2c
Combined with their own problem-solving process, linux judgment is not open port 1521, resulting in the database can not be connected.
View start and stop oracle Services
-> SQL / PLUS / nolog
-> conn AS sysdba
-> the Startup start oracle service
-> shutdown immediately / abort stop oracle service
-> quit
View monitor status start the listener
lsnrctl Status
lsnrctl Start
open port 1521 under Linux
Iptables the -I the INPUT -p tcp - dport 1521 -j ACCEPT
Iptables the -I the FORWARD-1521 - dport the p-tcp -j ACCEPT
