postfix troubleshooting

Using Smtps:SMTP--smpts 465S/MIME (Security MIME)User 2 users to achieve mail transmission, each user has a separate certificate, the certificate is issued by 2 users of the public trust of the CA.Openssl GPG (based on PGP specification)Using Pop3s, ImapsAs with Smtps, only session process encryption is guaranteed. Storage encryption is not guaranteedPop3s 995/tcpImaps 993/tcpDovecot:Create a certificate from a CA.#mkdir/ETC/DOVECOT/SSL certificate file is stored in this#vim/etc/dovecot.confPROT

version number and terminateCopy gentxt. Sh to/usr/bin/Cp dk-filter/gentxt. CSH/usr/bin/gentxt. ShGenerate the TXT record key/Usr/bin/gentxt. Sh default postfix.cnDefault ._DomainkeyIn TXT "k = RSA; t = y; P = logs/sadgsgwmjxjqunmqvcp4dkao3xmljsirdx3kjrz1wju + vre5yefrofucaweaaq ="; ----- domainkey default for postfix.cnAdd the TXT record generated above to the zone of postfix.cnCopy the generated default. PrivateCp dk-filter/Default. Private/tmail/dkim-milter/postfix.cn _ default. Key. pemEdit

Elementary: add the sender, acceptor, and email alias to implement the mail group function. We all know that the mail server has two servers, namely two ports, one is the sending port and the other is the receiving port. We usually use the process of sending and receiving emails, the server opens two ports for us to use. We are not operating the mail server, but only using the two ports of the mail service to meet our needs. First, set up the mail server's sending service, namely port 25: By def

The example in this article describes how PHP handles postfix mail content. Share to everyone for your reference. as follows: I hope this article will help you with your PHP programming.

First, we can re-build the server, you can also use my previous build method to compile the installation, address:http://wangzan18.blog.51cto.com/8021085/1605480 , this time we use the Yum method to install httpd and MySQL, my build environment is still our CentOS6.6 x86-64 bit mini edition, which can have many dependent packages are not installed, build depending on the situation If I build the httpd using the source code compiled above, remember to open the CGI module;1. Now we install HTTPD,

Today, look at the postfix mail server sent log, found that the size of the Maillog has been 1.3G, and is not segmented imaging maillog.1 maillog.2. That's weird! What is this for? The original two days ago changed the location of the mail log, the system's default partition/var because the previous server installation is not planned well, this server is temporarily converted to mail use, so in a large number of mail to send the task when the disk wi

Postfix, but it is only an SMTP server, to configure the full mail also has a pop3/imap, where I chose Dovecot, the reason is relatively new, more importantly, it has a lot of security configuration features. Many C/S protocols do not have the ability to verify, or the ability to verify is weak. So we need to find a professional to strengthen the user authentication function software, this software is Cyrus SASL namely simple authentication mechani

This article will introduce the use of Web to implement the management of Postfix mail receive delivery, and need to be authenticated One: Modify host Name: [Root@lyt ~]# Vim/etc/sysconfig/network [Root@lyt ~]# vim/etc/hosts [Root@lyt ~]# service SendMail stop [Root@lyt ~]# chkconfig sendmail off #关闭sendmail [Root@lyt ~]# Init 6 #重启计算机 Second: To build a DNS server: [Root@mail ~]# Mkdir/mnt/cdrom #新建挂载点 [Root@mail ~]# mount/dev/cdrom/mnt/

Postfix+squirrelmail are all Linux self-brought software Nonsense don't say ~ Direct start ~ (have demand please q:395061796, wholeheartedly for your service ~) [ROOT@ZHANGC ~]# vim/etc/resolv.conf [ROOT@ZHANGC ~]# vim/etc/hosts [ROOT@ZHANGC ~]# Vim/etc/sysconfig/network [ROOT@ZHANGC ~]# hostname mail.zhangc.com [ROOT@ZHANGC ~]# Logout Xshell:gt; SSH 192.168.100.123 [Root@mail ~]# Mount [Root@mail ~]# Vim/etc/yum.repos.d/rhel-debuginfo.repo

PHP cannot obtain Referer for troubleshooting and referer for troubleshooting. PHP cannot obtain Referer troubleshooting. referer troubleshooting test results :? Phpecho Test Source: directly load the page br; echoahreftest_cookie.php enter the page abr; echo test source PHP cannot obtain Referer

Chapter 8 JVM performance monitoring and troubleshooting tools (2), jvm troubleshooting Note: This blog is mainly recorded in "deep understanding of Java Virtual Machine (version 2)" Note: For details about JVM performance monitoring and troubleshooting tools on the command line, see Chapter 7 JVM performance monitoring and t