Warning: mysqli_connect(): (HY000/2002): No connection could be made because the target machine actively refused it. in E:\xampp\htdocs\ss\docs\regional.php on line 15
The connection to the database could not be established.
这是一个严重的错误,还是很容易被忽略?错误信息'The connection to the database could not be
我在php (WAMP Server 2.5,PHP5.5.12)中遇到ODBC问题。
当我试图逃跑时:
$conn = odbc_connect("odbc_dsn", "user", "pwd");
if ($conn)
{
echo "Connection established.";
}
else
{
exit("Connection could not be established.");
}
我收到警告:
Warning: odbc_connect(): in C:\wamp\ww
我的jenkins作业失败,出现以下错误。我已经验证了数据库进程和它的登录...
看起来很好..
ERROR: Error during Sonar runner execution
org.sonar.runner.impl.RunnerException: Unable to execute Sonar
Caused by: java.lang.IllegalStateException: Fail to connect to database
PoolableConnectionFactory (Connection refused. Check that the hostna
每次我尝试从特定主机调试HTTPS通信量(在我的android手机上)时,我都会在fiddler检查窗口中得到以下错误消息。
After the client received notice of the established CONNECT, it failed to send any data.
你能告诉我我做错了什么吗?我在我的三星星系s2上调试网络请求。在web会话窗口中,我可以看到所有的请求。在检验员的窗口里我看到了这样的东西:
CONNECT example-site.com:443 HTTP/1.1
Host: example-site.com
User-Agent: Dalv
就在几个小时前,FileZilla还很好。然后,我突然发现了这个错误:
Status: Resolving address of ftp.readtypechinese.com
Status: Connecting to 69.175.14.60:21...
Status: Connection established, waiting for welcome message...
Error: Connection timed out
Error: Could not connect to server
我所有的网站都是这样的:
Status: Resolving address of
我有下面的php代码来连接到mysql。
mysql_connect( "myserver.com" , "root", "redhat","datastore") or die(mysql_error());
当我运行这段代码时,我看到一个错误:
Warning: mysql_connect(): Host '10.21.21.10' is not allowed to connect to this MySQL server in C:\xampp\htdocs\inventory\net.php on li
我在客户机上调用connect()。客户端进入SYN_SENT状态并发送SYN。现在它得到一个没有ACK的SYN,因此客户端进入SYN_RCVD状态。
connect()会在这一点返回吗?从技术上讲,您有足够的信息能够在套接字上调用send()和recv()。如果您在处于SYN_RCVD状态的套接字上调用SEND,则RFC本身会声明:
SYN-RECEIVED STATE
Queue the data for transmission after entering ESTABLISHED state.
而且,如果您调用RECEIVE:
LISTEN STATE
SYN-SENT STAT
connection.js
/**
* lets require/import the mongodb native drivers.
*/
var mongodb = require('mongodb');
var MongoClient = mongodb.MongoClient;
var url = 'mongodb://localhost:27017/my_database';
/**
* Use connect method to connect to the Server
*/
MongoClient.connect(url
无法发送邮件(我开启了extension=php_openssl.dll //邮件),我的php版本是5.4.12
错误:
SMTP -> ERROR: Failed to connect to server: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (10060)
我正在运行WAMP服务器,并且刚刚启用了php_memcache扩展,并尝试了代码
<?php
$memcache = new Memcache;
$memcache->connect('localhost', 11211) or die ("Could not connect");
$version = $memcache->getVersion();
echo "Server's version: ".$version."<br/>\n";
$tmp_object = new std
我在本地运行Kafka。当我尝试写入Kafka时,我得到以下错误:
kafkacat -b localhost:9092 -t req -T -P -l msgs
hello
world
% ERROR: Local: Broker transport failure: localhost:9092/bootstrap: Connect to ipv6#[::1]:9092 failed: Connection refused (after 1ms in state CONNECT)
% ERROR: Local: All broker connections are down: 1/1 b
我的FTP服务器有问题。
连接、发送和接收有时会失败,这是不一致的。
我设法通过IP捕获和过滤数据包,我只是需要指针,从那里我可以做什么,因为我不完全了解捕获。
这是一个截图
📷
以下是失败时来自服务器的日志
Error: Connection closed by server
Error: Connection timed out
Error: Could not connect to server
Status: Delaying connection for 5 seconds due to previously failed connection attempt...
Statu
我正在开发一个蓝牙应用程序,它涉及到我的android蓝牙应用程序与运行在计算机上的服务器的连接。服务器也是一个使用blue-cove api制作的蓝牙应用程序。
我现在面临的问题是,我无法在我的移动应用程序和计算机服务器应用程序之间建立连接。
以下是我的android应用程序代码:
try {
// Connect the device through the socket. This will block
// until it succeeds or throws an exception
mySocket = m
我今天很难调试NodeJS代码中的一个问题。
当我打开到同一个unix套接字的两个连接(虽然原因)时,我遇到了问题;由于未知的原因,有时它在整个过程中工作得很好;有时我没有得到任何data,但是只为其中一个触发了connect。
我仍在尝试调试,但我深入研究了文档并面临另一个问题。如NodeJS文档(12.xLTS)所述:(关于net.Socket)
# Event: 'connect'
Added in: v0.1.90
Emitted when a socket connection is successfully established. See net.createCo
那就不要在这个脚本中运行。websocket服务器上的调用功能运行良好。
// WAMP server
var wsuri = 'ws://localhost:8080';
// connect
ab.connect(wsuri,
// WAMP session was established
function (session) {
// asynchronous RPC, returns promise object
session.call("hitUp", {
my : '