当我尝试从我的域向波兰电子邮件提供商onet.pl和gazeta.pl发送电子邮件时,im收到退回消息:
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
XXX@gazeta.pl
SMTP error from remote mail server after HELO mydomain.com:
host mx.poczta.
我正在尝试开发一个通过套接字连接到iSeries (as400 - PGM程序)的类。连接工作正常,但是当我试图发送数据和接收数据时,会得到一个错误。
这是代码:
class Program
{
public static void StartClient()
{
byte[] bytes = new byte[1024];
string desaip = "10.112.2.11";
// Connect to a remote device.
try
{
Starting Nmap 7.12 ( https://nmap.org ) at 2016-04-24 10:19 BST
Stats: 0:00:27 elapsed; 0 hosts completed (1 up), 1 undergoing Service Scan
Service scan Timing: About 0.00% done
Nmap scan report for local.domain.com (127.0.0.1)
Host is up (0.10s latency).
PORT STATE SERVICE VERSION
4111/tcp open
在过去的几天里,我一直在研究phpmyadmin。一切都运行得很好,直到我看到这个问题,而昨天这个问题并不存在。
4:19:45 PM [mysql] Error: MySQL shutdown unexpectedly.
4:19:45 PM [mysql] This may be due to a blocked port, missing dependencies,
4:19:45 PM [mysql] improper privileges, a crash, or a shutdown by another method.
4:19:45 PM [m
我尝试运行rsync,如下所示,并遇到错误sshpass: Failed to run command: No such file or directory .I验证源/local/mnt/workspace/common/sectool和目标目录/prj/qct/wlan_rome_su_builds是否可用和可访问?我遗漏了什么?如何修复?
username@xxx-machine-02:~$ sshpass –p 'password' rsync –progress –avz –e ssh /local/mnt/workspace/common/sectool cnssb
我在计算机上安装了一个设备(例如cardreader)。我运行了这段代码,但是ComboBox没有填满。
代码:
using System.Management;
using System.IO.Ports;
foreach (string portname in SerialPort.GetPortNames())
{
comboBox1.Items.Add(portname);
}
既然这不起作用,我如何才能看到计算机上安装的设备的端口地址和属性?
我尝试使用nmap将端口扫描到同一LAN中的一台服务器,但我打开了许多端口:
Host is up (0.058s latency).
Not shown: 993 closed ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
110/tcp open pop3
143/tcp open imap
993/tcp open imaps
995/tcp open pop3s
3306/tcp open mysql
因此,我登录到服务器查看正在侦听的服务,但它们只有很少几个:
netstat -plnt
Active Intern
我尝试了S.O上的每个链接,但每次尝试启动MySQL时仍然得到相同的结果。以下是.err文件中的日志。
2018-01-07T06:58:11.729500Z 0 [Warning] Setting lower_case_table_names=2 because file system for /usr/local/var/mysql/ is case insensitive
2018-01-07T06:58:11.731659Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-01-07T06:58:11