Centos7设置静态IP 1、使用命令ipconfig #查看自己现在的IP地址2、编辑em1对应的配置文件，位于/etc/sysconfig/network-scripts/ifcfg-你的网卡名字vim /etc/sysconfig/network-scripts/ifcfg-你的网卡名字 #改配置成为你本地的局域网的地址BOOTPROTO="static" # 使用静态IP地址，默认为dhcp IPADDR="10.10.10.66" # 设置的静态IP地址 NETMASK="255.0.0.0" # 子网掩码 GATEWAY="10.10.10.1" # 网关地址 DNS1="114.114.114.114" # DNS服务器（此设置没有用到，所以我的里面没有添加） ONBOOT=yes #设置网卡启动方式为 开机启动 并且可以通过系统服务管理器 systemctl 控制网卡3、修改/etc/sysconfig/network# Created by anaconda NETWORKING=yes GATEWAY=10.10.10.14、重启网络服务syservice network restart

kali学习基础 转换成中科大源vim /etc/apt/sources.listdeb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contribdeb-src http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib当无法解析域名时：新建一个配置文件vim /etc/resolv.conf添加域名，域名服务器（DNS服务器）nameserver 114.114.114.114nameserver 202.96.134.133配置sshd建立xshell连接vim /etc/ssh/sshd_config打开PermitRootLogin yes保存后启动服务/etc/init.d/ssh restart设置开机启动update-rc.d ssh enable2022.1.28学习的命令nslookup motor4920.tk 查看域名下的地址信息dig motor4920.tk any 查看域名的解析记录dig @114.114.114.114 指定进行域名解析的域名服务器dig -x 114.114.114.114 反向查询DNS域名地址dig txt chaos VERSION.BIND @114.114.114.114arping 192.168.1.1 -c 1 检测ip地址是否有冲突

Ubuntu设置静态IP 编辑net配置sudo vim /etc/netplan/00-network-manager-all.yamllet networkmanager manage all devices on this systemnetwork:version:2renderer:networkmanagerethernets:ens33:dhcp4:noaddresses:[192.168.166.180/24]gateway4:192.168.166.1nameservers:addresses:[114.114.114.114]重启net网络sudo netplan --debug apply----------------------------------------------------------------------------------------------------------更换源文件sudo chmod 777 /etc/apt/sources.listsudo vim /etc/apt/sources.listdeb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiversedeb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiversedeb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse

网络最基础 衡量网络的优劣：1、带宽：在一个时间段内，从一个点到另一个点的最大传输量。2、延迟：数据从一个点到另一个个点，所经历的时间。比特（流量）1000bit/s1kbit/s1000kbps1mbps1000mbps1Gbps字节（存储单位）byte1byte=8bit比如：200M带宽下载的网速应：200/8=25约等于25M每秒以太网结构1.网络通信协议OSI TCP/IP IPX/SPX SNA协议？：决定数据格式和传输的一组规则或者一组惯例。协议栈协议分层7：应用层 为应用程序提供网络服务6：表示层 数据格式化，加密，解密5：会话层 建立、维护、管理回话连接4：传输层 建立、维护、管理端到端的连接3：网络层 IP寻址和路由器的选择2：数据链路层 控制网络层与物理层之间通信 字节1：物理层 比特流传输 01010101

华为路由器开启ssh远程 先进入系统进入aaa模式aaa[Mix-li-aaa]local-user admin password cipher rc!@123456Info: Add a new user.[Mix-li-aaa]local-user admin privilege level 15[Mix-li-aaa]local-user admin service-type ssh[Mix-li-aaa]q[Mix-li]ssh user admin authentication-type passwordAuthentication type setted, and will be in effect next time[Mix-li]stelnet server enableInfo: Succeeded in starting the STELNET server.[Mix-li]rsa local-key-pair createThe key name will be: Host% RSA keys defined for Host already exist.Confirm to replace them? (y/n)[n]:yThe range of public key size is (512 ~ 2048).NOTES: If the key modulus is greater than 512,It will take a few minutes.Input the bits in the modulus[default = 512]:Generating keys…[Mix-li]user-interface vty 0 4[Mix-li-ui-vty0-4]authentication-mode aaa[Mix-li-ui-vty0-4]protocol inbound ssh