linux smtp server

Delivery agent (MDA): A mail delivery agent who is responsible for assigning messages to local users to the user's mailbox. In UNIX, the MDA is usually the mail program.· Mail Transfer agent (MTA): A mail forwarding agent is a server that is responsible for forwarding letters. The Sendmail and Postfix used in UNIX are the MTA software. Its function is to receive the letter from the MTU, according to the letter address, the letter forwarded to the des

Tool Httprint, it can effectively determine the type of HTTP server by using the principle of statistics and combining fuzzy logic technology. It can be used to collect and analyze signatures generated by different HTTP servers.6, Other: In order to improve the user's performance when using the browser, the modern browser also supports concurrent access, browse a Web page while establishing multiple connections, to quickly obtain a number of icons on

Install the ftp server in linux and the linuxftp Server Ftp (file transfer protocol) Concept FTP is short for File Transfer Protocol (File Transfer Protocol ". It is used for controlling two-way transmission of files over the Internet. It is also an Application ). FTP applications are painless based on different operating systems, and all these applications tr

"from:%s" %FROM, #各段以 " \r\n "to separate "to:%s" %TO, "subject:%s "%SUBJECT, "", text ), "\ r \ n") server=smtplib. SMTP () # Create a NBSP;SMTP () Object Server.connect (HOST, "+") #通过 connect Method Connection smtp host Server.starttls () #启用安全传输模式server

Linux Red hat 5 DNS server (I) domain name cache server, hatdnsDetailed setup of multiple experiments on Linux Red hat 5 DNS server Required software packages: › Bind-9.3.3-7.el5.i386.rpm › Provide main programs and related documents › Bind-utils-9.3.3-7.el5.i386.rpm › P

Chapter 8 high-performance Server programming in Linux (high-performance server program framework)8. High-performance server program frameworkThe server is reconstructed into three main modules:IO processing unit. Four IO models and two efficient event processing modes.Logic

maintenance Operating system is the Software foundation of server running, its importance is self-evident. Most server operating systems use Windows 2003 or Windows 2008Server as the operating system, which is easy to maintain. Open Event Viewer in Windows NT or Windows 2003 server to see if there are any unusually unusual records in the system log, security l

linux sendmail Mail Server Setup (Fedora 8)2009-01-22 17:27 3316 People read Comments (2) favorite reports Mail server linuxprotocolscaching Test loginRecently has been learning Linux, my blog in the previous period of time have written to set up the DNS detailed steps, this section mainly on the establishment of ma

Let's briefly describe the key steps for configuring the linux FTP server and data server-Linux Enterprise Application-Linux server application information. The following is a detailed description. 1. Configure the FTP

[Original] Linux server cluster logon via SSH without a password, server cluster sshSSH Without Password authorized access to server Load balancer cluster machines 1. Install SSH. SSH must be installed on all cluster machines.Environment: Master: CNT06BIG01 192.168.3.61SLAVE 1: CNT06BIG02 192.168.3.62SLAVE 2: CNT06BIG0

Enable UFWsudo UFW enablesudo ufw default denyAfter running the above two commands, the firewall is turned on and turned on automatically when the system starts. All external access to the native is turned off, but the native access is normal externally.Turn on and offsudo ufw allow|deny [service]Open or close a port, for example:sudo UFW allow SMTP allows all external IPs to access native 25/TCP (SMTP) por

A few years ago, only Sendmail was available for free mail servers in Linux. However, due to the Sendmail defect, some developers have developed several other mail server software. Currently, the free email server running in Linux, or the MTA (mail transfer agent), has several options: Sendmail, Qmail, Postfix, Exim, a

Now has more than two desktops of the family has a lot of retired from the old machine food tasteless, discard. In fact, you can use it as a local area network server, after dinner to call friends to drink friends, shouting neighbors, pull a few network cable, move on the laptop to battle CS and the era of Empires, or use proxy server sharing Internet. Come with me and build a simple

With the popularity of Linux in Open source system, its application in large and medium-sized enterprises is becoming more and more popular, many enterprise application services are built on it, such as Web services, database services, cluster services and so on. Therefore, the security of Linux has become an enterprise to build a security application of a foundation, is the most important, how to protect i

Article Title: how to treat a Linux server as a Mac server ?. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Download a program named n

For more information about how to use a Linux server as a Mac server-Linux Enterprise Application-Linux server application, see the following. Download a program named netatalk at the address below, which is about KB and should be

0 Preface Starting from this article, the author will introduce how to build an ArcGIS 10.1 for server cluster in a Linux environment. Because the cluster involves Server Load balancer processing and requests need to be distributed among different machines, domain name resolution is required. In addition, machines in the cluster need to share the site configurati

Q: Is the server a Linux system, and must the local development environment be Linux? I just learned how to build a website. There are many problems. I bought a space and the server operating system is Linux. To create a website, must the local development environment be

Linux Red Hat 5 DNS Server multiple labs detailed setupRequired Packages: ? bind-9.3.3-7.el5.i386.rpm ? Provide main procedures and related documents ? bind-utils-9.3.3-7.el5.i386.rpm ? Provides test tools for DNS servers (such as nslookup, dig, etc.) ? bind-chroot-9.3.3-7.el5.i386.rpm ? Provides a spoofed root directory to enhance its security (var/named/chroot/) ? caching-nameserver-9.3.3-7.el5.i386.rpm ?

The interface-friendliness, graphics performance, and attachment tools of the Linux desktop environment have evolved dramatically, but the Linux server has yet to reach this step. As a system administrator, you must be proficient in Linux commands. There are many Linux comma