Free Secure Smtp Server

For small and medium-sized enterprises or the company's internal network as well as the Internet, through the Wingate agent to achieve access to the Internet, is an economic and practical program. Wingate's current popular version is WinGate5.0.1, which is divided into simple and professional editions (its free trial version can be downloaded from Internet sites: http://www.wingate.com.cn, etc.). This article will use the most extensive WinGate5.0.1 Professional edition, talk about its configuration and the use of some of the skills in the process. WinGate ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall in understanding the Internet entrepreneurship Theory knowledge, began the field to carry out the actual operation of the website business. 　　In this chapter, we will explain in detail how to build a Web site that conforms to the user experience. First, the site's page planning and style design, the choice of the website programming language third, the choice of website database four, the Web site's hardware requirements and preparation of five, server hosting and maintenance six, server performance test seven, domain name query and registration eight, the actual combat exercise ...

With the popularization of Internet applications, more and more people start to use the services provided on the Internet. However, most of the Web sites currently providing services use user names and passwords to identify users, which makes it necessary for users to enter their username and password frequently. Obviously this kind of authentication has the disadvantage: with the increase of user network identity, users need to remember more than one group of user names, passwords, which give users the burden of memory; another frequent input user name, password, will correspondingly increase the user password password is cracked probability. In order to change this situation, single sign-on technology emerged ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall e-Mail, is the current Internet most popular enterprise application one. E-mail is fast, easy to distribute and inexpensive compared to traditional mail. E-mail is eroding the traditional mail market gradually. Nowadays, the phenomenon of E-commerce is becoming more and more common, and email marketing has become one of the important ways of enterprise promotion. The mail server is an important management device for sending and receiving e-mail to ensure the security and efficiency of the enterprise mailbox. Today, IDC review network to share with you ...

Today, open source firewalls are numerous. 　　This article will cover 10 of the most practical open source firewalls that fit your business needs. 1. Iptables Iptables/netfilter is the most popular command line based on firewalls. It is the safe line of defense for Linux servers. Many system administrators use it to fine-tune the server. The function is to filter packets from the network stack in the kernel, including: listing the contents of the packet filtering rule set, and executing fast because it only checks the header of the packet, and the administrator can ...

For small and medium-sized enterprises, there are many free and open source router and firewall solutions, even as a business choice. 　　Many of these products offer LAN services, such as VPN services, hotspot gateways, and the use of mandatory network portals to share wireless networks. Here, the editors find open source and free router projects that are suitable for businesses that include small businesses, midsize, and even the size of Cisco and Juniper.  Gossip Less, we look at these seven open source and free Linux network operating system. &nb ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall Mail mass is the effective network marketing way, simple and extreme mail mass will be determined by the receiving server as spam, and then organized, but also have been sent to the server may be blocked, which is a negative impact on their own image; 　　This will let customers feel that you do not pay attention to it, give people the feeling of net fishing. Does that mean that a mass mailing is not a good way to do this? Professional and technical support for stable mail mass, can improve our work efficiency, reduce unnecessary ...

Postfix is the default message transfer agent (MTA) in Ubuntu. It is http://www.aliyun.com/zixun/aggregation/13835.html "> A software in the main software library of Ubuntu. This means that it has a security update. This guide tells you how to install and configure Postfix and set it up as an SMTP server that uses a secure connection. Postfix features: 1. Post ...

People often ask me if they really should believe in Oss. In other words, the worry is: is the OSS the angel that brings us a good life, or is it a demon that destroys our lives? As a matter of fact, this problem has been raised since the beginning of Linux and various BSD (Berkeley Software distribution) operating systems. In reality, any organization or enterprise is very cautious in planning to use a free software that is not from a reputable merchant. As a routine, generally ...

I. Mail is the primary breakthrough in cyber attacks E-mail security protection experience summary. As the main communication tool of the enterprise (especially the traditional and large enterprises), the mail is increasingly critical. At the same time, security issues are increasingly prominent. Due to the lack of authentication and security authentication mechanisms, e-mail protocols are inherently anti-tracing and cost-effective. Mail has become the main approach to telecom fraud and ransomware attacks. At present, the public generally believes that email security is phishing. In fact, the field of email security is very wide. This article is based on the knowledge of work and shares with you in many dimensions. ...