会飞的甲壳虫 發表於 2017-1-19 13:16:13

CentOS7和CentOS6有什么不同呢?

<p>CentOS 7 vs CentOS 6的不同</p>
<p>&nbsp;<strong>(1)桌面系统</strong></p>
<p> GNOME 2.x</p>
<p> GNOME 3.x(GNOME Shell)</p>
<p><strong>(2)文件系统</strong></p>
<p> ext4</p>
<p> xfs</p>
<p><strong>(3)内核版本</strong></p>
<p> 2.6.x-x</p>
<p> 3.10.x-x</p>
<p><strong>(4)启动加载器</strong></p>
<p> GRUB Legacy (+efibootmgr)</p>
<p> GRUB2</p>
<p><strong>(5)防火墙</strong></p>
<p> iptables</p>
<p> firewalld</p>
<p><strong>(6)默认数据库</strong></p>
<p> MySQL</p>
<p> MariaDB</p>
<p><strong>(7)文件结构</strong></p>
<p> /bin, /sbin, /lib, and /lib64在/下</p>
<p> /bin, /sbin, /lib, and /lib64移到/usr下</p>
<p><strong>(8)主机名</strong></p>
<p> /etc/sysconfig/network</p>
<p> /etc/hostname</p>
<p><strong>(9)时间同步</strong></p>
<p></p>
<p>$ ntp</p>
<p>$ ntpq -p</p>
<p></p>
<p>$ chrony</p>
<p>$ chronyc sources</p>
<p><strong>(10)修改时间</strong></p>
<p></p>
<p>$ vim /etc/sysconfig/clock</p>
<p>&nbsp;&nbsp; ZONE=&quot;Asia/Tokyo&quot;</p>
<p>&nbsp;&nbsp; UTC=fales</p>
<p>$ sudo ln -s /usr/share/zoneinfo/Asia/Tokyo /etc/localtime</p>
<p></p>
<p>$ timedatectl set-timezone Asia/Tokyo</p>
<p>$ timedatectl status</p>
<p><strong>(11)修改地区</strong></p>
<p></p>
<p>$ vim /etc/sysconfig/i18n</p>
<p>&nbsp;&nbsp; LANG=&quot;ja_JP.utf8&quot;</p>
<p>$ /etc/sysconfig/i18n</p>
<p>$ locale</p>
<p></p>
<p>$ localectl set-locale LANG=ja_JP.utf8</p>
<p>$ localectl status</p>
<p><strong>(12)服务相关</strong></p>
<p>1)启动停止</p>
<p></p>
<p>$ service service_name start</p>
<p>$ service service_name stop</p>
<p>$ service sshd restart/status/reload</p>
<p></p>
<p>$ systemctl start service_name</p>
<p>$ systemctl stop service_name</p>
<p>$ systemctl restart/status/reload sshd</p>
<p>自启动</p>
<p></p>
<p>$ chkconfig service_name on/off</p>
<p></p>
<p>$ systemctl enable service_name</p>
<p>$ systemctl disable service_name</p>
<p>服务一览</p>
<p></p>
<p>$ chkconfig --list</p>
<p></p>
<p>$ systemctl list-unit-files</p>
<p>$ systemctl --type service</p>
<p>强制停止</p>
<p></p>
<p>$ kill -9 &lt;PID&gt;</p>
<p></p>
<p>$ systemctl kill --signal=9 sshd</p>
<p><strong>(13)网络</strong></p>
<p>1)网络信息</p>
<p></p>
<p>$ netstat</p>
<p>$ netstat -I</p>
<p>$ netstat -n</p>
<p></p>
<p>$ ip n</p>
<p>$ ip -s l</p>
<p>$ ss</p>
<p>2)IP地址MAC地址</p>
<p></p>
<p>$ ifconfig -a</p>
<p></p>
<p>$ ip address show</p>
<p>3)路由</p>
<p></p>
<p>$ route -n</p>
<p>$ route -A inet6 -n</p>
<p></p>
<p>$ ip route show</p>
<p>$ ip -6 route show</p>
<p><strong>(14)重启关闭</strong></p>
<p>1)关闭</p>
<p></p>
<p>$ shutdown -h now&nbsp;</p>
<p></p>
<p>$ poweroff</p>
<p>$ systemctl poweroff</p>
<p>2)重启</p>
<p></p>
<p>$ reboot</p>
<p>$ shutdown -r now</p>
<p></p>
<p>$ reboot</p>
<p>$ systemctl reboot</p>
<p>3)单用户模式</p>
<p></p>
<p>$ init S</p>
<p></p>
<p>$ systemctl rescue</p>
<p>4)启动模式</p>
<p></p>
<p></p>
<p>$ vim /etc/inittab</p>
<p>&nbsp; id:3:initdefault:</p>
<p></p>
<p>$ startx</p>
<p></p>
<p></p>
<p>$ systemctl isolate multi-user.target</p>
<p></p>
<p>$systemctl isolate graphical.target</p>
<p>默认</p>
<p>$ systemctl set-default graphical.target</p>
<p>$ systemctl set-default multi-user.target</p>
<p>当前</p>
<p>$ systemctl get-default</p>
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