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To build a mail-sending server using Haraka

Install NPM install-g HarakaInitialize Haraka-i/etc/haraka DKIM configuration: Cd/etc/haraka/dkimSH dkim_key_gen.sh miantiao.meDNS configuration: 1.SPF Related:Add TXT RecordIf the top-level domain name host name is null or @, if it is a subdomain, the host name is mail (modified according to your subdomain) value:V=SPF1 ip4:49.74.15.209 ip4:192.168.199.219 ~all Online test whether the SPF is successfull

How to create a beautiful skin method

1. Do not rely on cosmetics to prevent sunburn. Although many of the cosmetics used in daily use contain SPF, most of them do not have the same sunscreen effect as sunscreen oil. Cosmetics that contain SPF are usually designed for lighter light, such as shopping or eating out for lunch.  2. You can sleep with makeup.Makeup artist clearly told with face makeup to sleep does not make any cosmetic taboo. It's

Pmta+oempro implementation scheme in Linux

List, remove check publish this CAMPAIGN in RSS feeds, click CREATE CAMPAIGN and EDIT CAMPAIGN EMAILClick From Scratch Generate Dkim Toolshttp://www.port25.com/support/domainkeysdkim-wizard/Enter domain prefix and domain name separately, such as alanhou.com and Alanhou will give birth to a public and private key, the private key is configured into PMTA configuration file VI +436/etc/pmta/config Add code similar to the followingDomain-key Localhost,*,/etc/pmta/dkim/localhost.pem And then co

Ethernet switch configuration and supported network types

(RIP-RIP) is a distance vector protocol that uses the number of hops as the Metering Standard. RIP is widely used in the routing selection of global interconnection networks. It is an internal gateway protocol provided by the UNIX Berkeley standard distribution system. Ip rip is defined in RFC 1058 and RFC 1723. RIP2-is the latest enhanced version of RIP. It allows RIP packets to contain more information and provides a simple authentication mechanism. It is described in RFC 1723. Open Shortest

Research on OSPF Data Structure

convert it into its own information.On the surface, LSA transmission is performed because a router detects link status changes. Therefore, after receiving any type of LSA, the OSPF router must compare the content of the LSA with the corresponding part of its route table. The comparison can only be performed after the SPF algorithm uses new data to form a new network view. The SPF algorithm outputs a new vi

How to bind an MX record to 163 enterprise mail by Hostgator

Recently, we helped the customer move the host from Godaddy to Hostgator. The domain name is still on godaddy, but the NameSever (NS) is changed to Hostgator, so that the domain name can be managed in the hostgator background, you do not have to worry about the failure to access the website due to the Host IP address change. The website was successfully transferred. The first night of the transfer was uploaded to the hostgator host. The next morning, you can access the website through the domain

Baidu interview (process scheduling, scheduling algorithm)

First, the common batch processing job scheduling algorithm1. First come first service scheduling algorithm (FCFS): is according to each job into the system's natural order to dispatch the job. The advantage of this scheduling algorithm is to achieve simple, fair. The disadvantage is that it does not take into account the comprehensive use of various resources in the system, often makes the short job users dissatisfied, because the short job waiting for processing time may be much longer than t

Android Development (I) Analysis of XML file parsing in the SAX Mode

. name = name;}Public short getAge (){Return age;}Public void setAge (short age ){This. age = age;}@ OverridePublic String toString (){Return "Person [age =" + age + ", id =" + id + ", name =" + name + "]";}} Business bean:Public class SAXPersonService {Public static List Throws Exception {// Get a SAXParserFactory objectSAXParserFactory spf = SAXParserFactory. newInstance ();// Parses the object using SAX.SAXParser saxParser =

Detailed analysis of the principles and features of Dynamic Routing Protocol

protocol. An autonomous system using OSPF dynamic routing protocol can support more than 1000 routers after reasonable planning. This performance is unmatched by distance vector dynamic routing, such as RIP. The Distance Vector dynamic routing protocol uses periodic transmission of the entire route table to ensure that the route information of the routers in the network is consistent. This mechanism wastes network bandwidth and causes a series of problems, next we will give a brief introduction

Detailed description of Ethernet switch performance comparison indicators

. Ip rip is defined in RFC 1058 and RFC 1723. RIP2-is the latest enhanced version of RIP. It allows RIP packets to contain more information and provides a simple authentication mechanism. It is described in RFC 1723. Open Shortest Path First version 2nd (OSPFv2)-it is the second version of OSPF. OSPF is a connection status routing protocol, which is an IETF of an interconnected network engineering task group. The internal gateway protocol workgroup is designed for IP addresses, it is the next li

Network Management (required): principles and features of Dynamic Routing Protocol OSPF (1)

network bandwidth and causes a series of problems, next we will give a brief introduction to this. The speed of Route variation convergence is a key factor to measure the quality of a routing protocol. When the network topology changes, it is an important aspect of network availability that the routers in the network can notify each other of the changes in a short period of time and re-calculate the routes. OSPF uses some technical means (such as SPF

In-depth introduction to the comprehensive performance of Ethernet Switches

. Second, OSPF is built on the SPF algorithm. SPF is also called DIJKSTRA algorithm. It is named after the founder of this algorithm. The Border Gateway Protocol BGP--BGP is used to replace the EGPExterior Gateway Protocol) Inter-Domain Routing Protocol. The accessibility of information exchange between BGP and other BGP systems is defined by RFC 1163. BGP4 is the fourth version of BGP. It supports CIDR and

Comparison of Ethernet switch performance (1)

distribution system. Ip rip is defined in RFC 1058 and RFC 1723. RIP2-is the latest enhanced version of RIP. It allows RIP packets to contain more information and provides a simple authentication mechanism. It is described in RFC 1723. Open Shortest Path First version 2nd (OSPFv2)-it is the second version of OSPF. OSPF is a connection status routing protocol, which is an IETF of an interconnected network engineering task group. The internal gateway protocol workgroup is designed for IP addresse

The sample code of Xml data parsing is described in detail.

. arrayList; import java. util. list; import java. util. stack; import javax. xml. parsers. SAXParser; import javax. xml. parsers. SAXParserFactory; import org. xml. sax. attributes; import org. xml. sax. SAXException; import org. xml. sax. helpers. defaultHandler; public class TestSax {public static void main (String [] args) throws Exception {SAXParserFactory spf = SAXParserFactory. newInstance (); SAXParser sp =

Android Project Call Butler (8)-----Add boot monitoring Service

Now most of the applications will boot from the boot, call the butler is more so, added the boot monitoring service after the boot, even if you do not open the call Butler application, the same can intercept incoming call information.How to start the activity or service from boot:Main steps:1. To have the service or activity to start the boot (this is the boot to start the listenservice of course)2. Write a broadcastreceiver to capture the action_boot_completed broadcast and start the activity o

Some things about extmail.

ExtMail-1.61. Modify/ETC/POSTFIX/MAIN.CFOriginal:: #mydestination = $mynetworks, $myhostnameCheck_policy_service inet:127.0.0.1:10030After:22:mydestination =#check_policy_service inet:127.0.0.1:10030Restart PostfixCanceling the SPF feature of EmosVim/usr/local/slockd/config/plugin.cfSpf_plugin = yes #取消SLOCKD的SPF功能Dnsbl_plugin = yes #关闭DNS查找SwitchSpf_plugin = NoDnsbl_plugin = NoVim/etc/amavisd.conf$max _ser

2016.8.14 Network Engineer's Gateway Protocol

largest interface IP address as the router identity;5. Zone ID: In a multi-zone network, specify a zone ID for each region6. Authentication type: OSPF supports different authentication methods, the Hello packet sent to the multicast address 224.0.0.5 is authenticated to be received;(one) Advantages of OSPF:1. The link state protocol uses a layered network structure that reduces the spread of LSA and reduces the likelihood that network topology changes affect all routers;2. The link-State protoc

Add attachments to the image library in SharePoint

Add an image to the image library.CodeThe Code is as follows: Public String Insertimage (){ Try { If ( This . Fileupload3.postedfile. contentlength! = 0 ) {Spweb Web = Spcontext. Current. Web; web. allowunsafeupdates = True ; Splist list = Web. Lists [ " Photo " ]; Spfoldercollection spfolders = List. rootfolder. subfolders; arraylist arr = New Arraylist (spfolders. Count ); // Obtain the name (including the suffix) of the uploaded image) String [] Imgtemp = fil

<Test> win2k configures tomcat3.1 on apache1.3

Why do you want to configure Tomcat as the in-process part of Apache? 1. Tomcat processing static page without Apache fast 2. Tomcat is easier to configure than Apache 3. Tomcat does not have Apache stability and robustness 4. Apache supports CGI scripts and api,perl,php, etc. Now let me try to configure 1. Review me Apache and Tomcat installation first My machine is the Chinese version of Windows jdk1.3 and has been installed in the d:jdk1.3 Apache I install in D:program filesapache Groupapache

Alpha releases all Gigabit non-NMS switch ST-1240

and discard broadcast traffic that exceeds the set value. Abundant Gigabit scalability To meet the needs of more users, the Alpha Gigabit Switch series not only provides 24 fixed 10/100/1000TX ports, but also has 2 SPF fiber expansion slots (optional ), with rich Gigabit scalability, all SPF modules support hot swapping, making the construction of Internet cafes, small and medium-sized enterprises and

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