Linux Mail Forwarding

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 ...

E-Mail is one of the most popular applications on the Internet. Like a postman distributing traditional mail, e-mail is asynchronous, meaning that people send and read emails at their convenience, without having to collaborate with others beforehand. Unlike traditional messages, e-mail is fast, easy to distribute, and inexpensive. 　　In addition, modern e-mail messages can contain hyperlinks, HTML-formatted text, images, sounds, and even video data. HTTP://WWW.ALIYUN.COM/ZIXUN/AGGREGATION/12 ...

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 ...

Once upon a time, Open-source software was completely insignificant. Today, open source is a great way to go, many software is already very beautiful scenery. However, there are some software obscurity is the baby. It's not clear how many people know and use the software and apps. 　　Believe that if more people understand these open source applications, they are likely to replace some of the mainstream products. You may never have heard of the software, or you may have heard it, but you haven't been able to use it, because you're already using another "decent" piece of software. Linux expert Jack Wallen in this article ...

The reason for buying domain names abroad: One, can get them to provide a lot of value-added services. Second, you can freely back and forth, transfer, convenient transfer. Three, are ICANN's top agents, unlike the domestic server, today registration, tomorrow can not find people. Four, at present, foreign host companies have to China's mainland users to launch Chinese stations, to provide credit cards, PayPal, Alipay and other diversified payment methods, and provide Chinese control Panel, Chinese customer service. Not in the domestic purchase of domain name reasons: first, the degree of security assurances is not high, they will succumb to the official pressure and do not give you analysis, ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology lobby United States virtual host hostease since the entry into China has been relying on cost-effective and unique service characteristics won the hearts of users. Although the domestic virtual host market competition is increasingly fierce, but hostease space business can always launch the characteristics of the service in real time to attract users attention. Recently, hostease new trend, again raised its not to take the usual road banner. 　　Let's look at the three unique services that attract users. Windows Master ...

Fourteen make PHP beginners a big headache Summary Today for everyone to give PHP beginners a headache big summary, the following 14 questions hope for PHP beginners to help. 1, the page can not be passed variables get, post, session Automatic global variables in the latest php version is turned off, so to get over the variables from the previous page to use $ _GET ['foo'], $ _ POST [ 'foo'], $ _ SESSION ['foo']. Of course it can be ...

Usermin 1.480 This version contains Address book import support to prevent the message from appearing as an inline picture, setting more sensible automatic reply defaults to prevent mail loops and increasing the German translation update. Usermin is a web interface that can be easily used by any user on UNIX systems to read messages, set up SSH, or configure mail forwarding. It can be seen as a webmin simplified ordinary user rather than http://www.aliyun.com/zixun/aggregati ...

The most tempting point of cloud computing is that end users can access the cloud in any access way and enjoy the rich application and fast computing power of the cloud. Among them, the use of mobile access security issues are becoming the focus of attention.     Recently, the author interviewed the Network Kang Science and technology product Director Shaomin, understand its latest application of security gateway products NS-ASG to the enterprise private cloud mobile Access security protection. Shaomin Technology product director Next generation VPN traditional internet era, mobile access ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall relative to the domestic host services, the United States, the host industry more mature, therefore, cost-effective than domestic products a lot higher. The United States host has a lot of domestic host can not compare the advantages: Unlimited Web space, unlimited site traffic. An account can create unlimited Web sites, and each site can be assigned a separate FTP account and directory. No record, and not by Netcom, telecom restrictions, speed comparable to the domestic dual-line room. Support credit card payment, domestic bank card payment, PayPal and many more ...