imap connection refused

Mail service problems-Linux Enterprise Application-Linux server application information. For details, refer to the following section. : Time: 1 I installed the disk with IMAP. After installing imap Set auto start and test... # Chkconfig imap on

How to enable the SSH service in ubuntu14.04   Popular Science: SSHThis is short for Secure Shell, developed by the Network Working Group of IETF. SSH is a security protocol built on the application layer and transport layer. SSH is a reliable

Lab ReportFirst, the experiment name: the construction of mail server and the configuration of related usage functionSecond, the experimental environment and requirements: Linux system CENTOS7 versionSet up mail server to realize the basic function

Windows Server 2003 building a mail serverBecause Windows Server 2003 defaults to not installing the POP3 and SMTP services we need to build our mail servers, we need to install them ourselves. Here's how:1. Place the Windows Server 2003 System CD

 Table (1) SMTP CodeCode definition421 service not available, hosts in the closing transmission channel brackets cannot provide normal services, close the transmission pipeline, and emails will be stuck on the host450 requested mail action not taken:

The first chapter of the experimental environment Hardware environment:Linux server one, IP address: 192.168.80.10;WIN7 client one, with OUTLOOK2013, test, and server in the same LAN. Linux system environments, such as: Chapter II

Hope that after reading this article, you can clearly understand the network situation of your server, can easily configure its network environment. Linux servers are installed, and configuring their network environment is a function of each system

Most hosts attacked on the network are targeted by hackers who use scanning tools for a wide range of scans. Therefore, in order to avoid being scanned, all ports, such as Web, FTP, and SSH, should be disabled. It is worth mentioning that I strongly

From: http://manas.tungare.name/blog/ssh-port-forwarding-on-mac-os-x/ After spending about an hour processing ing what shoshould, in theory, be a simple matter, I figured I 'd write a blog post that might one day save another soul an hour or so from

Windows Server 2003 System configuration Scenario Network security refers to the network system hardware, software and its system data is protected from accidental or malicious reasons to be destroyed, changed, leaked, the system continuously