How To Configure A Mail Server In Linux

SMTP server Code of Practice: Incoming messages. Check the address of the message. If the address of the message is a local address, save the message for retrieval. If it is a remote address, forward the message. The SMTP server features the same as the packet router, except that the SMTP service is dedicated to mail. Most SMTP servers can store and forward messages as needed. The SMTP server has security requirements on two different tasks: Protect the server from being compromised. The server must be equipped with protective armor to prevent external attacks, if the external offensive success will make the attackers unauthorized ...

The intermediary transaction SEO diagnoses Taobao guest cloud host technology Hall to believe that a lot of beginners who want to learn Linux are worried about what to look at Linux learning Tutorials Good, the following small series for everyone to collect and organize some of the more important tutorials for everyone to learn, if you want to learn more words, can go to wdlinux school to find more tutorials. Install PHP expansion module phpize install PHP module One way is to add related parameters recompile PHP one is to use phpize, such as Eaccel ...

After years of fighting Linux as a threat, Microsoft now offers Linux based operating systems in its Windows Azure cloud service. The Linux service will be available on the Azure platform at 4 a.m. (Beijing time Thursday 17 o'clock) in the eastern time of the United States. At this time, the Azure portal will provide many Linux release software, including SuSE Linux Enterprise Server SP2, OpenSuse 12.01, CentOS ...

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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 ...

Security is a huge and challenging subject, but everyone who works on the server side should know the basic steps. Cameron outlines some ways to keep your user account clean and secure. Security is a big problem. It's not going to be the same, and it's hard to know how much it needs to scale: if you're not careful, when your boss really wants to keep the doorman from seeing his annual budget, you finally believe that he needs to understand the benefits of security. No matter how challenging it is to keep up with trends in all aspects of computing security, there are several areas that are already sufficient ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host technology Hall is well-known, the present Webmaster promotion website way all inseparable from the mail. Due to the timely delivery of mail, convenience and other factors increasingly become webmaster marketing "sharp weapon." Understand the e-mail to make the most of its potential. e-mail development passes through three stages: free e-mail, billing email and mail system. 　　Today, IDC comments Network to share 10 mail system. 1. SquirrelMail SquirrelMail is a set of standard based ...

Telnet is a service that http://www.aliyun.com/zixun/aggregation/18736.html "> allows users to log on to your server and get a command prompt similar to the one you login to the VGA terminal." The Telnet service is installed by default in Fedora but not started. The disadvantage of Telnet is that data can only be sent in plain text. This means that other people can use the web Analytics tool to get your username and password by analyzing the packet. So ...

In fact, starting with the Ubuntu10.04 version, canonical started to offer cloud services through Ubuntuone, offering 2GB of free online storage and, if you want more space, paying an extra fee to buy. Cloud computing in recent years from a somewhat vague concept, gradually rise to the use of the stage. 　　 　　This makes every it vendor see infinite Business opportunities, canonical naturally also refused to ignore this sumptuous feast. After Ubuntu10.04 tasted the sweetness of cloud computing, Ubu ...