CentOS7开发环境搭建
BIOS开启VT支持
- 查询笔记本进入BIOS的按键，启动BIOS的虚拟化设置
- 如果安装360卫士，那么请永久关闭Intel-VT核晶防护引擎
CentOS DNS配置
Linux 下设置DNS位置有3处，其生效顺序如下：
- /etc/hosts
- 网卡配置文件DNS服务器地址
- /etc/resolv.conf
通过设置主机表地址进行特定主机的解析，优先DNS服务器地址，/etc/hosts：
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
123.125.114.144 www.baidu.com #手动指定百度的IP在/etc/hosts配置www.baidu.com的网址后，可以用ping www.baidu.com命令来观看ping的地址是否是123.125.114.114
Linux中默认的DNS服务器地址配置文件为/etc/resolv.conf:
nameserver 114.114.114.114 #配置DNS服务器地址，可配置多个
nameserver 8.8.8.8在网卡配置文件中添加DNS服务器地址， /etc/sysconfig/network-scripts/ifcfg-eno16777736：
DNS1=114.114.114.114
DNS2=8.8.8.8解析域名的方法：
[root@localhost]# nslookup baidu.com
Server: 114.114.114.114
Address: 114.114.114.114#53
Non-authoritative answer:
Name: baidu.com
Address: 220.181.57.217
Name: baidu.com
Address: 111.13.101.208
Name: baidu.com
Address: 123.125.114.144
Name: baidu.com
Address: 180.149.132.47
[root@localhost]# host baidu.com
baidu.com has address 180.149.132.47
baidu.com has address 220.181.57.217
baidu.com has address 111.13.101.208
baidu.com has address 123.125.114.144
baidu.com mail is handled by 10 mx.n.shifen.com.
baidu.com mail is handled by 20 mx1.baidu.com.
baidu.com mail is handled by 20 jpmx.baidu.com.
baidu.com mail is handled by 20 mx50.baidu.com.
[root@localhost]# dig baidu.com
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 <<>> baidu.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33094
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;baidu.com. IN A
;; ANSWER SECTION:
baidu.com. 202 IN A 111.13.101.208
baidu.com. 202 IN A 123.125.114.144
baidu.com. 202 IN A 180.149.132.47
baidu.com. 202 IN A 220.181.57.217
;; Query time: 28 msec
;; SERVER: 114.114.114.114#53(114.114.114.114)
;; WHEN: Wed Nov 18 13:31:29 2015
;; MSG SIZE rcvd: 91CentOS网络配置
根据centos7.0安装教程安装虚拟机。
su root切换到root用户，编辑配置文件vim /etc/sysconfig/network-scripts/ifcfg-eno16777736
HWADDR=00:0C:29:23:C4:B1 #ip link show查看 TYPE=Ethernet #BOOTPROTO=dhcp BOOTPROTO=static IPADDR=192.168.0.122 NETMASK=255.255.255.0 GATEWAY=192.168.0.1 DNS1=114.114.114.114 DNS2=8.8.8.8 DEFROUTE=yes PEERDNS=yes PEERROUTES=yes NM_CONTROLLED=no IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_PEERDNS=yes IPV6_PEERROUTES=yes IPV6_FAILURE_FATAL=no NAME=eno16777736 UUID=ebd7eace-f0b7-4d48-b4d6-fd6ee3f7e21d #nmcli con show # ONBOOT=no ONBOOT=yes注意配置能够使用的DNS，否则无法解析域名，可参考常用公共DNS服务器地址
service network restart重启网络
ping baidu.com是否能够ping通百度
配置多个网卡
配置第二个时，需要自己创建配置文件，在重启网卡之前，停止NetworkManager
systemctl stop NetworkManager
systemctl disable NetworkManager
时间配置
配置本地时区：
cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
同步网络时间：
yum install ntpdate
ntpdate pool.ntp.org
Samba服务配置
yum install samba samba-client samba-common安装相关软件
# rpm -qa | grep samba
samba-4.1.12-23.el7_1.x86_64
samba-libs-4.1.12-23.el7_1.x86_64
samba-common-4.1.12-23.el7_1.x86_64
samba-client-4.1.12-23.el7_1.x86_64这里顺便说一下搭建samba服务器所需要的基本软件包：
1. samba 这个软件包包含了主要的daemon文件（smbd和nmbd）
2. samba-common 提供samba的主要配置文件(smb.conf)、smb.conf语法检测程序(testparm)等
3. samba-client 当linux作为samba 客户端的时候，提供了一套所需的工具和指令。
备份配置文件cp /etc/samba/smb.conf /etc/samba/smb.conf.$(date +%F)
编辑vim /etc/samba/smb.conf
[global]
workgroup = MYGROUP
server string = Samba Server Version %v
log file = /var/log/samba/log.%m
max log size = 50
security = user
passdb backend = tdbsam
load printers = yes
cups options = raw
[samba]
comment = my share dir
path = /home/user
browseable = yes
guest ok = yes
writable = yes
public = yes添加用户smbpasswd -a samba_user,设置密码
重启服务
service smb restart
service nmb restart
关闭防火墙
systemctl stop firewalld.service
systemctl disable firewalld.service
setenforce 0
Linux下客户端测试
smbclient -L //192.168.0.122/samba -U samba_user
设置开机启动
systemctl enable smb.service
Win8下添加网络位置
进入我的电脑，【右击】-【添加网络位置】根据向导一直点击【下一步】，在Internet地址或网络位置下填写\\192.168.0.122\samba,【下一步】根据提示填写用户与密码。
安装必备软件
- 安装gcc:
yum -y install gcc - 安装g++:
yum -y install gcc-c++ - 安装gccgo:
yum -y install gcc-go - 安装小工具：
yum -y install lrzsz screenyum -y install socat nc nmap
获取本机公网ip
curl http://members.3322.org/dyndns/getipcurl ipinfo.io
{
"ip": "36.110.42.197",
"hostname": "No Hostname",
"city": "Beijing",
"region": "Beijing Shi",
"country": "CN",
"loc": "39.9289,116.3883",
"org": "AS4847 China Networks Inter-Exchange" }CentOS6.7添加第三方库
安装yum优先级插件
yum install yum-prioritiesepel简介: https://fedoraproject.org/wiki/EPEL/zh-cn
rpm -Uvh http://mirrors.ustc.edu.cn/fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm以上URL请按实际情况修改
查看是否安装成功
rpm -q epel-release导入key：
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6修改/etc/yum.repos.d/epel.repo文件
在[epel]最后添加一条属性 priority=11
vi /etc/yum.repos.d/epel.repo
意思是yum先去官方源查，官方没有再去epel的源找重建缓存
yum makecache
参考：
- CentOS虚拟机如何设置共享文件夹，并在Windows下映射网络驱动器？
- CentOS IP、DNS配置
- LINUX的DNS怎么设置？linux下如何修改DNS地址
- Linux学习之CentOS(三十三)–DNS基础及域名系统架构
- CentOS—网络配置详解
- CentOS6.5下添加epel源