Var Spool

If you only want to see the first 5 lines of the file, you can use the Head command, such as: Head-5 passwd If you want to view the last 10 lines of a file, you can use the tail command, example: [Root@localhost software]# head-5/etc/ Passwdroot:x:0:0:root:/root:/bin/bash &http://www.aliyun.com/zixun/aggregation ...

First, part of the local source of the production: usually apt or new installation software, download the Deb file will be stored in the/var/cache/apt/archives/, in order to reload or to others, especially when there is no network, these Deb files can actually be sent to use, That is, you can use these Deb production cost source below to give a feasible and practical part of local source production steps: 1 sudo apt install nautilus-open-terminal dp ...

Postfix is the default message transfer agent (MTA) in Ubuntu. It is http://www.aliyun.com/zixun/aggregation/13835.html "> A software in the main software library of Ubuntu. This means that it has a security update. This guide tells you how to install and configure Postfix and set it up as an SMTP server that uses a secure connection. Postfix features: 1. Post ...

Cron is a task that a daemon uses to perform a trip class for a specified period of time. Each user has a crontab file that allows them to specify what needs to be done and when, in addition, the system has a crontab that allows for regular tasks like alternating logs and updating local data. Using Cron, as long as you add some items to the crontab file, a crontab project details the process and time of execution, such as: 5 3 * * * */U ...

http://www.aliyun.com/zixun/aggregation/30318.html "> Fax Server" is a web-based client/server fax system, The server-side software provides shared fax functionality to network users, and client software allows you to send faxes directly to your terminal, just as easily as sending emails or file printing. Below, small make up to lead everybody together to set up a fax server, hope to be able to have to everybody friend ...

&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Fax server is a web-based client/server fax system in which server-side software provides shared fax functionality to network users, and client software allows you to send faxes directly to your terminal, just as easily as emailing or file printing. Below, small make up to lead everybody ...

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Hosthttp://www.aliyun.com/zixun/aggregation/11696.html ">name is used to display or set the current host name and system name. Many network programs use these names to identify machines. The domain name is also used by NIST/YP. If we want to modify the hostname (FQDN) After we finish loading the iremdail, we need to modify the relevant content below. 1, modify hostname in/etc ...