What's the location of Ubuntu's mine

1. The miner background is configured with three mining addresses, the first is the main mine pool address, and the second two are the standby mine pool address. In order to ensure the miner's mining income, the miner has set up an automatic detection mechanism of the standby mine pool, that is, the miner itself will continuously detect whether the standby mine pool is connected,
the miner continuously detects the availability of the standby mine pool, During this period, the main ore pool has been connected, so it will not affect your mining income.

2. The mine pool is a team mining server. Corresponding mine pool address and server address. bitcoin generates a block every 10 minutes, and there will be tens of millions of people competing. In the end, only one person owns the block, and no one else receives anything
you may have to dig for 5 years to get a block. Team mining is that once anyone in the team gets a block, they will divide the currency in the block according to their performance, so that they can get bitcoin quickly.

3. Hello, the mine pool is a team mining server. Corresponding mine pool address and server address. Bitcoin generates a block every 10 minutes, and there will be tens of millions of people competing. In the end, only one person owns the block, and no one else receives anything
you may have to dig for five years to get a block. Team mining is that once anyone in the team gets a block, they will divide the currency in the block according to their performance, so that they can get bitcoin quickly.

4. If there is no source, just search for a software and download the installation package.
the source should be domestic, which is very fast

5. 8.10的

Archive.ubuntu.com更新服务器欧洲，此为官方源，电信网通用户使用)：

deb http://archive.ubuntu.com/ubuntu/ intrepid main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ intrepid-security main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ intrepid-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ intrepid main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ intrepid-security main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ intrepid-backports main restricted universe multiverse

Ubuntu.cn99.com更新服务器江苏省常州市电信，推荐电信用户使用：

deb http://ubuntu.cn99.com/ubuntu/ intrepid main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ intrepid-security main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb http://ubuntu.cn99.com/ubuntu/ intrepid-backports main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ intrepid main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ intrepid-security main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ intrepid-proposed main restricted universe multiverse
deb-src http://ubuntu.cn99.com/ubuntu/ intrepid-backports main restricted universe multiverse

Mirrors.shlug.org更新服务器电信服务器，Ubuntu China Official Mirror, maintained by Shanghai Linux User Group：

deb http://cn.archive.ubuntu.com/ubuntu intrepid main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu intrepid-security main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu intrepid-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu intrepid-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu intrepid-proposed main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid-security main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid-updates main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid-backports main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu intrepid-proposed main restricted universe multiverse

Mirror.lupaworld.com更新服务器浙江省杭州市双线服务器：

deb http://mirror.lupaworld.com/ubuntu intrepid main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu intrepid-security main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu intrepid-updates main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu intrepid-backports main restricted universe multiverse
deb http://mirror.lupaworld.com/ubuntu intrepid-proposed main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid-security main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid-updates main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid-backports main restricted universe multiverse
deb-src http://mirror.lupaworld.com/ubuntu intrepid-proposed main restricted universe multiverse

厦门大学更新服务器教育网服务器：

deb ftp://ubuntu.realss.cn/ubuntu/ intrepid main restricted universe multiverse
deb ftp://ubuntu.realss.cn/ubuntu/ intrepid-backports restricted universe multiverse
deb ftp://ubuntu.realss.cn/ubuntu/ intrepid-proposed main restricted universe multiverse
deb ftp://ubuntu.realss.cn/ubuntu/ intrepid-security main restricted universe multiverse
deb ftp://ubuntu.realss.cn/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src ftp://ubuntu.realss.cn/ubuntu/ intrepid main restricted universe multiverse
deb-src ftp://ubuntu.realss.cn/ubuntu/ intrepid-backports main restricted universe multiverse
deb-src ftp://ubuntu.realss.cn/ubuntu/ intrepid-proposed main restricted universe multiverse
deb-src ftp://ubuntu.realss.cn/ubuntu/ intrepid-security main restricted universe multiverse
deb-src ftp://ubuntu.realss.cn/ubuntu/ intrepid-updates main restricted universe multiverse

成都市 电子科技大学更新服务器教育网，推荐校园网和网通用户使用：

deb http://ubuntu.uestc.e.cn/ubuntu/ intrepid main multiverse restricted universe
deb http://ubuntu.uestc.e.cn/ubuntu/ intrepid-backports main multiverse restricted universe
deb http://ubuntu.uestc.e.cn/ubuntu/ intrepid-proposed main multiverse restricted universe
deb http://ubuntu.uestc.e.cn/ubuntu/ intrepid-security main multiverse restricted universe
deb http://ubuntu.uestc.e.cn/ubuntu/ intrepid-updates main multiverse restricted universe
deb-src http://ubuntu.uestc.e.cn/ubuntu/ intrepid main multiverse restricted universe
deb-src http://ubuntu.uestc.e.cn/ubuntu/ intrepid-backports main multiverse restricted universe
deb-src http://ubuntu.uestc.e.cn/ubuntu/ intrepid-proposed main multiverse restricted universe
deb-src http://ubuntu.uestc.e.cn/ubuntu/ intrepid-security main multiverse restricted universe
deb-src http://ubuntu.uestc.e.cn/ubuntu/ intrepid-updates main multiverse restricted universe

== 如果无法解析uestc.e.cn域名，请使用以下地址 ==

deb http://ubuntu.dormforce.net/ubuntu/ intrepid main multiverse restricted universe
deb http://ubuntu.dormforce.net/ubuntu/ intrepid-backports main multiverse restricted universe
deb http://ubuntu.dormforce.net/ubuntu/ intrepid-proposed main multiverse restricted universe
deb http://ubuntu.dormforce.net/ubuntu/ intrepid-security main multiverse restricted universe
deb http://ubuntu.dormforce.net/ubuntu/ intrepid-updates main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ intrepid main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ intrepid-backports main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ intrepid-proposed main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ intrepid-security main multiverse restricted universe
deb-src http://ubuntu.dormforce.net/ubuntu/ intrepid-updates main multiverse restricted universe

上海市上海交通大学更新服务器教育网，推荐校园网和网通用户使用：

deb http://ftp.sjtu.e.cn/ubuntu/ intrepid main multiverse restricted universe
deb http://ftp.sjtu.e.cn/ubuntu/ intrepid-backports main multiverse restricted universe
deb http://ftp.sjtu.e.cn/ubuntu/ intrepid-proposed main multiverse restricted universe
deb http://ftp.sjtu.e.cn/ubuntu/ intrepid-security main multiverse restricted universe
deb http://ftp.sjtu.e.cn/ubuntu/ intrepid-updates main multiverse restricted universe
deb-src http://ftp.sjtu.e.cn/ubuntu/ intrepid main multiverse restricted universe
deb-src http://ftp.sjtu.e.cn/ubuntu/ intrepid-backports main multiverse restricted universe
deb-src http://ftp.sjtu.e.cn/ubuntu/ intrepid-proposed main multiverse restricted universe
deb-src http://ftp.sjtu.e.cn/ubuntu/ intrepid-security main multiverse restricted universe
deb-src http://ftp.sjtu.e.cn/ubuntu/ intrepid-updates main multiverse restricted universe

中国科学技术大学更新服务器教育网，推荐校园网和网通用户使用：

deb http://debian.ustc.e.cn/ubuntu/ intrepid main multiverse restricted universe
deb http://debian.ustc.e.cn/ubuntu/ intrepid-backports main multiverse restricted universe
deb http://debian.ustc.e.cn/ubuntu/ intrepid-proposed main multiverse restricted universe
deb http://debian.ustc.e.cn/ubuntu/ intrepid-security main multiverse restricted universe
deb http://debian.ustc.e.cn/ubuntu/ intrepid-updates main multiverse restricted universe
deb-src http://debian.ustc.e.cn/ubuntu/ intrepid main multiverse restricted universe
deb-src http://debian.ustc.e.cn/ubuntu/ intrepid-backports main multiverse restricted universe
deb-src http://debian.ustc.e.cn/ubuntu/ intrepid-proposed main multiverse restricted universe
deb-src http://debian.ustc.e.cn/ubuntu/ intrepid-security main multiverse restricted universe
deb-src http://debian.ustc.e.cn/ubuntu/ intrepid-updates main multiverse restricted universe

中国台湾 台湾大学更新服务器推荐网通用户使用，电信PING平均响应速度41MS强烈推荐此源，比较完整，较少出现同步问题：

deb http://ubuntu.csie.ntu.e.tw/ubuntu/ intrepid main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.e.tw/ubuntu/ intrepid main restricted universe multiverse
deb http://ubuntu.csie.ntu.e.tw/ubuntu/ intrepid-updates main restricted universe multiverse
deb-src http://ubuntu.csie.ntu.e.tw/ubuntu/ intrepid-updates main restricted universe multiverse
deb http://ubuntu.csie.ntu.e.tw/ubuntu/ intrepid-backports main

6.

1. Click "application" in the computer system menu, click "accessories" in the open menu, and then select "terminal terminal"

7. After the docker container is running, how to enter the container for operation? At first I used SSH. If only one container is started, SSH can cope with it. You only need to map port 22 of the container to one port of the local machine. When I start five containers, each container is not configured with ssh server by default. It's really troublesome to install and configure sshd and map container SSH port. I found that many docker images do not have sshd service installed. Is there any other way to enter the docker container? There are many ways, including using the docker attach command or the nsenter tool. Using the attach command is sometimes inconvenient. When multiple windows are attached to the same container at the same time, all windows will be displayed synchronously. Nsenter can access the namespace of another process. In order to connect to the container, you also need to find the PID of the first process of the container, which can be obtained through the following command.

8. The steps are as follows:
1, Ping scan and print out the host responding to the scan:

$ Nmap - SP
192.168.1.0/24

2, only lists each host on the specified network, and does not send any message to the target host:

$nmap - SL
192.168.1.0/24

3, detects the open ports of the target host, and can specify a comma separated port list (such as - ps
22, 23, 25, 80):

$nmap - ps
192.168.1.234

4, using UDP
Ping to detect host:

$nmap - Pu
192.168.1.0/24

5, the most frequently used scan option (syn scan, also known as semi open scan), it does not open a complete TCP connection, and executes very fast:

$nmap - SS
192.168.1.0/24