"550 5.7.1 unable to relay for XXX" error in lumisoft Mail Server
This error occurs when I explore lumisoft Mail ServerSource codeIn the process, it severely plagued me for a week.
Fortunately, I am still very resilient to find the cause and solution. Although I had a lot of detours while searching for answers, I finally found the answer with my persistent efforts, I hope it will be helpful to anyone who has encountered the same problem as me.
P
Following the third part of the DHCP server setup successfully, let's do a relay proxy server configuration.Our Virtual machine architectureSpecific reference:(a) Play with Me Linux network services: DNS service--bind (/etc/named.conf,/var/named) settings implementation and interpretationAccording to the third part, we deployed the DHCP server above the VM1, we configured the relay service on the vm2 above,
QQ Olympic Torch Hand icon Lighting mode:
①. Accept the invitation of QQ friends, participate in the torch online transmission, to obtain an not lit icon.
② invite 1 QQ friends to participate in the torch online transmission, choose your manifesto, send out invitations.
③. Successful invitation, the icon is lit to become the torch Online relay ambassador.
Q Torch relay success need
Financial Enterprises require a high degree of reliability for network transmission of key business data, which requires the use of the router's backup function. In the network transformation, after replacing the original X.25 group leased line with a frame relay line, it is indeed fast and reliable. But what about the replaced X.25 group leased line? We decided to use floating Static Routing Technology to back up the X.25 leased line for Frame
E-mail depends on the network, the so-called mail relay ultimately need to solve the problem, is the network problem. The network is normal, of course, there is no need for mail relay service. But China is a relatively complex network of countries, there is telecommunications and unicom, their interconnection between the problem, is an eternal problem, unless the day suddenly merged. There is also the netwo
E-mail depends on the network, the so-called mail relay ultimately need to solve the problem, is the network problem. The network is normal, of course, there is no need for mail relay service. But China is a relatively complex network of countries, there is telecommunications and unicom, their interconnection between the problem, is an eternal problem, unless the day suddenly merged. There is also the netwo
Delayed Internet conversation: Channel Management(Rfc2811-Internet Relay Chat: client Protocol)Status of this memoThis Memorandum provides information to internet groups. It does not set any Internet standards and can be released without restrictions.Copyright NoticeCopyright (c) the Internet Society (2000). All rights reserved.SummaryOne of the most striking features of the IRC protocol is that it allows users to group by Forum, called a channel,It p
From: http://blog.csdn.net/21aspnet/article/details/50774684
SQL Relay According to its official website Http://sqlrelay.sourceforge.net/index.html said is: A powerful database connection management solution.
Translate to Chinese This means that SQL relay is an open source database pool connection Proxy server.
There are many databases supported by SQL relay
This method only applies to the User IP address fixed situation, such as a unit has its own C-class address, and has its own local area network, the mail server is only provided to the LAN users to send and receive e-mail.
The easiest way to set your own server to be a non-open relay is to include all the domain names of your mail server (if the MX record of DNS is pointing to the machine). For example, your machine has three domain name mail.linxuai
The LMI (Local management interface, locally Management Interface) is the signaling standard between the CPE device (router) and the frame switch, adding extensions to the Frame Relay protocol for managing complex interconnection networks. The main Frame Relay LMI extension includes global addressing, virtual circuit state messages, and multicast.
Note: There are in fact 3 LMI criteria. In addition to the C
Configure DHCP in the route. This is the skill that the network administrator should master. In addition, we should know about DHCP relay during the configuration process. This article mainly introduces how to use a vrodhcp to build DHCP. After reading the specific operation steps, I believe you will understand it.
There are many ways to use a DHCP server. Here I will introduce how to use a vro as a DHCP server.
Project requirements: XX enterprise has
If you know about the DHCP protocol, you must know the content of the DHCP relay. Here we will focus on the principles and configuration of DHCP relay. Let's take a look at the content of the mask.
DHCP relay principle and Configuration
Application scenarios:
When the number of hosts in a network is large, manual IP Address allocation is not only troublesome but
After installing Darwin streaming Server, you can use VLC to play streaming media files through the RTSP protocol. But now I have a need to send a DSS (assumed to be a machine) on the media file to another DSS (assuming B machine) on the client VLC by accessing the B machine to play the media files of a machine, that is, using B machine as a forwarding server. I found a lot of articles on the internet about configuring DSS, all of which are about how to install and configure playlists, not how t
We all know that some of the tp-link or D-Link router has a wireless relay problem, the normal router does not have a relay function can be used by their own brush system to make the router has wireless relay function, but this wireless relay function may be less stable, There is a problem with long-time connections to
. Turn off the power supply in case of wiring. The p9_1 is a 3.3V power supply with the p9_13 (GPIO number 31) as the control signal output: One boot you will find that the LED is on. Enter the system operation SYSFS, as follows: When you change the direction to out, the light goes out and the value is zero. Turn the value to 1 and the light will light up again. I am not satisfied with the result. Again, this time lose that troublesome transistor, switch to
1. Add modules to several routers and configure ip addresses for PCs.At the same time, I am used to adding modules to the vro. the commonly used ports are s0/0/0.It is a 2811 vro. The topology of www.2cto.com is as follows: 2. Configure several routers (basic configuration and Frame Relay configuration) Here I will take R1 as an example, because R2 and R3 are similar. Ontinue with configuration dialog? [Yes/no]: noRouter> enRouter # conf tRouter (conf
Today, a buddy sent a request for help, saying that the master node was never synchronized. He sent an error message to the master node and found that the error message from the error log was not truncated to show slave status \ G ), however, when you view the log information, the following error occurs:
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tp-wr842n Router set relay mode first step, operating computer settings
1, set up operating computer network parameters
Please set the wireless network card that operates the computer to manually specify the IP address.
2, wireless connection Mini Router
The computer searches the mini router for a wireless signal (TP-LINK_XXXXXX) and connects.
TP-WR842N Router Set relay mode The second step, the landin
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