更换计算机名,重新启动系统后 oracle 的监听器就无法正常启动, 总是提示ORA-12545:Connect failed beacuse target host or object does not exist,每次监听器启动完就自动又关闭.打开oracle 目录 D:\ORACLE\ora92\network\admin 下的listener.ora 文件 把HOST的值改为自己新的计算机名或者IP地址,并且把tnsnames.ora文件中的HOST改为自己的机器名称或者是ip地址…

问题描述 $ lsnrctl startLSNRCTL for Linux: Version 12.1.0.2.0 - Production on 26-JUL-2017 09:53:42Copyright (c) 1991, 2014, Oracle. All rights reserved.Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=mengqf)(PORT=1521)))TNS-12545: Connect failed…

[oracle@ybdbtest oradata]$ sqlplus /nolog SQL*Plus: Release 9.2.0.4.0 - Production on Thu Jun 26 10:16:29 2014 Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved. SQL> conn / as sysdba ERROR: ORA-12545: Connect failed because target h…

配置好lamp后,在浏览器中运行程序后,出现上面的错误. 转自:http://www.xuejiehome.com/blread-1828.html I'm experiencing 502 gateway errors when accessing a PHP file in a directory (http://domain.com/dev/index.php), the logs simply says this: // :: [error] #: * connect() failed…

vs2010 and vs2012 are installed on target machine. Build c# project using vs2010, following error occurred: ERROR message : error MSB4216: Could not run the "GenerateResource" task because MSBuild could not create or connect to a task host with…

报错原因:没有启动服务,打开服务即可 redis.clients.jedis.exceptions.JedisConnectionException: Exception at redis.clients.jedis.Connection.connect(Connection.java:) at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:) at redis.clients.jedis.Connection.sendCo…

嗯哼,刚装了个ubuntu的lnmp,我的天啊,踩的坑比我脂肪还多了 比如刚装完的时候访问显示502, 也不知道什么问题,就去看了一下nginx日志  /var/log/nginx/error.log,发现了这个错误 2018/06/03 13:38:23 [error] 21332#21332: *301 connect() failed (111: Connection refused) while connecting to upstream, client: 115.159.183.71…

nginx一直报错, 2016/12/02 10:23:19 [error] 1472#0: *31 connect() failed (111: Connection refused)while connecting to upstream, client: 101.18.123.107, server: localhost 网上说是php相关的,但是我没有使用php. 我这边是因为远程服务器(client)要ping我的服务器,但是我的服务器禁用了ping,一直出错.允许ping即可.…

对于httpClient4.3访问指定页面,可以从下面的demo抽取方法使用. 注意:对于URL必须使用 http://开始,否则会有如下报错信息: Caused by: org.apache.http.ProtocolException: Target host is not specified    at org.apache.http.impl.conn.DefaultRoutePlanner.determineRoute(DefaultRoutePlanner.Java:69)    a…

对于httpClient4.3访问指定页面,可以从下面的demo抽取方法使用. 注意:对于URL必须使用 http://开始,否则会有如下报错信息: 或者在设置cookie时带上domain: cookie.setDomain(domain); 或者:cookie.setDomain("0.0.0.0"); Caused by: org.apache.http.ProtocolException: Target host is not specified    at org.apach…