mDNS multicast DNS, using port 5353, multicast address 220.127.116.11. In a small network without a regular DNS server, mDNS can be used to implement DNS-like programming interfaces, packet formats, and operational semantics. The MDNS protocol packet has the same message structure as the DNS packet, but some fields have new meanings for MDNS.
Recently, I have been working hard with remote desktops! At present, there are some solutions for installing vnc server in docker, and it can be used, but the frame rate is very low. Even in the case of good network speed, the screen tearing is still serious. In comparison, after using teamviewer, I found this thing is really black technology! The remote desktop screen is very smooth!甩vnc desktop is a few streets!
After using it for a long time, the size of the above virtual disk image will be full! ! ! For example, the 64G set before, and later used more than 64G! ! At this time, docker can't start. After trying to start multiple times, it will automatically exit. Later, I found the following settings:
参考：https://yq.aliyun.com/articles/110806?spm=a2c1q.8351518.104.22.16814d2akQz8f2 # step 1: 安装必要的一些系统工具 sudo yum install -y yum-utils device-mapper-persistent-data lvm2 # Step 2: 添加软件源信息 sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo # Step 3: 更新并安装 Docker-CE sudo yum makecache fast sudo yum -y install docker-ce # Step 4: 开启Docker服务 sudo service docker start