Symptom description:Email server A and email server B are set at the front-end. After the front-end receives the email, it is delivered to the mailbox in the backend server. After receiving the external email, the front-end cannot deliver the email
Email server fault symptom description:
Email server A and email server B are set at the front-end. After the front-end receives the email, it is delivered to the mailbox in the backend server. After receiving the external email, the front-end
Tutorials | Application example Linux based search engine implementation
Search engine is to provide users with quick access to web information tools, the main function is the system through the user input keywords, search back-end Web database, the
Search engine
Search engine is to provide users with quick access to web information tools, the main function is the system through the user input keywords, search back-end Web database, the relevant web page links and summary information feedback
Agreement
Port
Describe
Smtp
Tcp:25
The SMTP service uses TCP port 25.
Dns
tcp/udp:53
DNS listens on port 53. The domain controller uses this port.
Lsa
tcp:691
SRV record: It is generally an application set for Microsoft's Active Directory. DNS can be independent from the Active Directory, but the Active Directory must have DNS help to work. In order for the Active Directory to work normally, the DNS
First, Bulk import accountsProcedure and principle:1 , first make a simple template with an Excel table and save it as a. csv format! 2 , and then use the for command combined with dsadd to complete the batch creation of users! Command used: (Note:
Overview:
Create an object in the command line and Perform Batch operations in the Active Directory to update and maintain the Active Directory.
If you are responsible for processing an Excel spreadsheet containing information
Samba is a file sharing service that implements Windows systems and Linux systems.a , samba configuration fileThe first is to install Samba[email protected] ~]# Yum install-y Samba samba-clientThe Samba configuration file is/etc/samba/smb.conf, and
Port
Agreement
Application protocols
System service Name
N/A
Gre
GRE (IP protocol 47)
Routing and Remote Access
N/A
Esp
IPsec ESP (IP protocol 50)
Routing and Remote Access
N/A
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