Cgminer

前言

本文为自己在Centos 6.0下,利用Cgminer-4.10.0进行比特币挖矿并利用Tcpdump进行抓包分析的测试记录。


Step 1 Download and install

wget http://ck.kolivas.org/apps/cgminer/cgminer-4.10.0.tar.bz2 #下载最新版本挖矿软件tar jxvf cgminer-4.10.0.tar.bz2 #解压缩在当前目录cd  cgminer-4.10.0.tar.bz2  #进入目录./configure --prefix=/usr/local/cgminer --enable-opencl --enable-maintainer-mode --enable-scrypt --enable-cpumining # --enable-cpumining这个参数是允许使用CPU进行挖矿,在没有GPU的情况下使用,如果有了GPU,不建议使用。make                                      make checkmake installln -s /usr/local/cgminer/bin/cgminer /usr/binvim /usr/local/cgminer/etc/cgminer.conf #配置cgminer.confcgminer挖矿指令:cgminer -o stratum+tcp://us.multipool.us:3332 -u Cherishao_0 -p x #-0 指定矿池 -u 制定矿工  -p 密码
#挖矿成功输出“Echo”  cgminer version 4.10.0 - Started: [2018-05-29 16:20:09] CPU Algo: c--------------------------------------------------------------------------------(5s):664.3 (avg):647.7 Kh/s | Q:7  A:0  R:0  HW:0  E:0%  U:0.0/mTQ: 0  ST: 2  SS: 0  DW: 0  NB: 1  LW: 0  GF: 0  RF: 0  WU: 0.0Connected to http://us.multipool.us:3332 with LP as user Cherishao_0Block: 00000003e78a45bc9db17b5654bbe400...  Started: [16:20:09]--------------------------------------------------------------------------------[P]ool management [S]ettings [D]isplay options [Q]uitCPU 0:                | 647.0/647.7Kh/s | A:0 R:0 HW:0 U:0.00/m--------------------------------------------------------------------------------[2018-05-29 16:20:09] Started cgminer 4.10.0[2018-05-29 16:20:11] Need to specify at least one pool server.Input server details.URL:http://us.multipool.us:3332Username:Cherishao_0Password:x[2018-05-29 16:20:13] Probing for an alive pool[2018-05-29 16:20:14] Pool 0 http://us.multipool.us:3332 alive[2018-05-29 16:20:16] Long-polling activated for http://us.multipool.us:3332/listenChannel

Step2 tcpdump

@监视指定网络接口的数据包

tcpdump -i eth1

@指定ip,例如截获所有210.27.48.1 的主机收到的和发出的所有的数据包

tcpdump host 210.27.48.1 

@监视指定主机和端口的数据包 如果想要获取主机210.27.48.1接收或发出的telnet包,使用如下命令

tcpdump tcp port 23 and host 210.27.48.1

@对本机的udp 123 端口进行监视 123 为ntp的服务端口

tcpdump udp port 123 

tcpdump 与wireshark

Wireshark(以前是ethereal)是Windows下非常简单易用的抓包工具。但在Linux下很难找到一个好用的图形化抓包工具。
还好有Tcpdump。我们可以用Tcpdump + Wireshark 的完美组合实现:在 Linux 里抓包,然后在Windows 里分析包。

tcpdump tcp -i eth1 -t -s 0 -c 100 and dst port ! 22 and src net 192.168.1.0/24 -w ./target.cap

(1)tcp: ip icmp arp rarp 和 tcp、udp、icmp这些选项等都要放到第一个参数的位置,用来过滤数据报的类型
(2)-i eth1 : 只抓经过接口eth1的包
(3)-t : 不显示时间戳
(4)-s 0 : 抓取数据包时默认抓取长度为68字节。加上-S 0 后可以抓到完整的数据包
(5)-c 100 : 只抓取100个数据包
(6)dst port ! 22 : 不抓取目标端口是22的数据包
(7)src net 192.168.1.0/24 : 数据包的源网络地址为192.168.1.0/24
(8)-w ./target.cap : 保存成cap文件,方便用ethereal(即wireshark)分析

使用tcpdump抓取HTTP包

tcpdump  -XvvennSs 0 -i eth0 tcp[20:2]=0x4745 or tcp[20:2]=0x4854

@0x4745 为”GET”前两个字母”GE”,0x4854 为”HTTP”前两个字母”HT”。

tcpdump 对截获的数据并没有进行彻底解码,数据包内的大部分内容是使用十六进制的形式直接打印输出的。显然这不利于分析网络故障,通常的解决办法是先使用带-w参 数的tcpdump 截获数据并保存到文件中,然后再使用其他程序(如Wireshark)进行解码分析。当然也应该定义过滤规则,以避免捕获的数据包填满整个硬盘。


Step 3

@可参考矿池配置

 "pools": [        {            "url": "aeon-pool.sqlnetcat.com:5555",                          // URL of mining server            "user": "WmsJrZGye77apyyprQRSfG6s3wyBivswtKFd3BeVQz3tQJhL7WHGpToJR4ALKmPTKMJYMVqCxaak2J3LiRgUEYqz33vzHAExq",                         // username for mining server            "pass": "x",                        // password for mining server            "use-tls" : false,                  // enable tls for pool communication (need pool support)            "keepalive": true,                  // send keepalived for prevent timeout (need pool support)            "nicehash": false                   // enable nicehash/xmrig-proxy support        },        {            "url": "xmr.sqlnetcat.com:7777",                          // URL of mining server            "user": "47HMfFjaYKj7cXVVGrABeFdBQZGTsi4GSYxANQ3qAnDRDJuj3uNTDmmiVg845L3sbHWSV8k9EAjqdeCb4gFMhCWiLQjTYVe",                         // username for mining server            "pass": "x",                        // password for mining server            "use-tls" : false,                  // enable tls for pool communication (need pool support)            "keepalive": true,                  // send keepalived for prevent timeout (need pool support)            "nicehash": false                   // enable nicehash/xmrig-proxy support        },        {            "url": "pool.minexmr.com:443",                          // URL of mining server            "user": "47HMfFjaYKj7cXVVGrABeFdBQZGTsi4GSYxANQ3qAnDRDJuj3uNTDmmiVg845L3sbHWSV8k9EAjqdeCb4gFMhCWiLQjTYVe",                         // username for mining server            "pass": "x",                        // password for mining server            "use-tls" : false,                  // enable tls for pool communication (need pool support)            "keepalive": true,                  // send keepalived for prevent timeout (need pool support)            "nicehash": false                   // enable nicehash/xmrig-proxy support        },        {            "url": "xmr.crypto-pool.fr:443",                          // URL of mining server            "user": "47HMfFjaYKj7cXVVGrABeFdBQZGTsi4GSYxANQ3qAnDRDJuj3uNTDmmiVg845L3sbHWSV8k9EAjqdeCb4gFMhCWiLQjTYVe",                         // username for mining server            "pass": "x",                        // password for mining server            "use-tls" : false,                  // enable tls for pool communication (need pool support)            "keepalive": true,                  // send keepalived for prevent timeout (need pool support)            "nicehash": false                   // enable nicehash/xmrig-proxy support        }    ],

@refer
Tcpdump 使用指导书:https://www.cnblogs.com/losbyday/p/5851767.html
Cgmier download Website: http://ck.kolivas.org/apps/cgminer/
矿池:www.multipool.us
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2021-04-18 原文

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