How do I set up a Mac with a mail client? Many Mac users may have overlooked this very useful Mac software, and for Mac users who need to send and receive e-mails, the system's own mailbox can add other mailboxes without installing a Third-party
1. Allow to pass through a port at one end
Vi/etc/sysconfig/iptables
-A input-m state--state new-m tcp-p TCP--dport 80-j ACCEPT (allow 80 ports through the firewall)
/etc/init.d/iptables restart
#最后重启防火墙使配置生效
Allow only specific IP access to a
1. back up iptables # cp/etc/sysconfig/iptables/var/tmp first. Port 80 must be enabled, and the following three lines of IP address and Lan must be specified: first, disable all port 80 and enable port 80 at the end of the ip segment 192.168.1.0/24.
Need to open port 80, specify IP and LAN
The following three lines mean:
Shut down all 80 ports first.
Open 80 ports of IP segment 192.168.1.0/24 end
Open IP Segment 211.123.16.123/24 80 port IP Segment
# iptables-i input-p TCP--dport 80-j DROP
The Discuz mailbox involves the background: 1. global -- registration and access control -- send the registration link and send the welcome Email via Email; 2. the user -- send the notification; 3. retrieve the user password for email verification. 4
Detailed Mac hard drive folders (add Linux part reference
★ Detailed Mac hard disk in each folder
Ways to show hidden files
With the "terminal", the advantage is that no third-party tools are required, the downside is that if the command is wrong,
Since reading the iron Xia series, I have never been tired of thinking about automation, monitoring, and warning. If you use an iPhone, you can use Siri on your mobile phone to perform operations (such as calling a contact) you want ). However, I
I. Overview1.1 five-layer modelThe implementation of the Internet is divided into several layers. Each layer has its own functions. Like a building, each layer is supported by the next layer.The user is only exposed to the top layer and does not
Ever since I saw the Iron Man series, I have been very enthusiastic about all kinds of automation, monitoring, and warning ideas. If you use the iphone then you have Siri on your phone and you can perform some of the actions you want it to perform
Many of my friends encountered the problem that they could not send emails when setting the email address to authenticate their identity. of course, I also encountered this problem. I searched a lot of materials and set a lot of replies, I have made
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