柚子快报邀请码778899分享：Linux-时间同步服务器
1.
(问答题)
一.配置server主机要求如下： 1.server主机的主机名称为 ntp_server.example.com
编写脚本文件
#!/bin/bash
hostnamectl hostname ntp_server.example.com
cd /etc/NetworkManager/system-connections/
rm -fr *
cat > eth0.nmconnection < [connection] id=eth0 type=ethernet interface-name=eth0 [ipv4] method=manual address1=172.25.254.$1/24,172.25.254.2 dns=114.114.114.114; EOF chmod 600 eth0.nmconnection nmcli connection reload nmcli connection up eth0 echo "172.25.254.$1 server$1.shaohua.org" >> /etc/hosts 2.server主机的IP为： 172.25.254.100 执行脚本文件 [root@server100 桌面]# vmset.sh 100 连接已成功激活（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/3） [root@server100 桌面]# hostname ntpserver.example.com [root@server100 桌面]# ifconfig eth0: flags=4163 inet 172.25.254.100 netmask 255.255.255.0 broadcast 172.25.254.255 inet6 fe80::e1bf:6c40:f9c2:8d98 prefixlen 64 scopeid 0x20 ether 00:0c:29:53:36:f8 txqueuelen 1000 (Ethernet) RX packets 4445 bytes 6626121 (6.3 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1584 bytes 90682 (88.5 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 66 bytes 6216 (6.0 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 66 bytes 6216 (6.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [root@server100 桌面]# 3.server主机的时间为1984-11-11 11：11：11 [root@ntpserver ~]# systemctl stop chronyd.service //关闭时间同步服务 [root@ntpserver ~]# systemctl status chronyd.service //查看服务状态 ○ chronyd.service - NTP client/server Loaded: loaded (/usr/lib/systemd/system/chronyd.service; enabled; preset: enabled) Active: inactive (dead) since Tue 2024-04-16 23:28:57 CST; 12s ago Duration: 15min 26.079s Docs: man:chronyd(8) man:chrony.conf(5) Process: 867 ExecStart=/usr/sbin/chronyd $OPTIONS (code=exited, status=0/SUCCESS) Main PID: 907 (code=exited, status=0/SUCCESS) CPU: 56ms 4月 16 23:13:31 server100.shaohua.org systemd[1]: Started NTP client/server. 4月 16 23:21:56 client.example.com chronyd[907]: Selected source 202.118.1.81 (2.rhel.pool.n 4月 16 23:21:56 client.example.com chronyd[907]: System clock TAI offset set to 37 seconds 4月 16 23:24:06 client.example.com chronyd[907]: Selected source 193.182.111.141 (2.rhel.poo 4月 16 23:24:07 client.example.com chronyd[907]: Source 202.112.29.82 replaced with 5.79.108 4月 16 23:25:12 client.example.com chronyd[907]: Selected source 202.118.1.81 (2.rhel.pool.n 4月 16 23:28:57 client.example.com chronyd[907]: chronyd exiting 4月 16 23:28:57 client.example.com systemd[1]: Stopping NTP client/server... 4月 16 23:28:57 client.example.com systemd[1]: chronyd.service: Deactivated successfully. 4月 16 23:28:57 client.example.com systemd[1]: Stopped NTP client/server. [root@ntpserver ~]# [root@client ~]# timedatectl set-time "1984-11-11 11:11:11"//修改时间 4.配置server主机的时间同步服务要求可以被所有人使用 [root@ntpserver ~]# rpm -qc chrony //查看配置文件 /etc/chrony.conf /etc/chrony.keys /etc/logrotate.d/chrony /etc/sysconfig/chronyd [root@ntpserver ~]# vim /etc/chrony.conf //修改配置文件 [root@ntpserver ~]# systemctl restart chronyd.service //重启服务 [root@ntpserver ~]# systemctl disable --now firewalld.service //关闭火墙 Removed "/etc/systemd/system/multi-user.target.wants/firewalld.service". Removed "/etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service". [root@ntpserver ~]# 修改配置文件内容如下： 25 # Allow NTP client access from local network. 26 #allow 192.168.0.0/16 27 allow 0.0.0.0/0 28 # Serve time even if not synchronized to a time source. 29 #local stratum 10 30 local stratum 10 31 二.设定clinet主机要求如下 1.client主机的IP为:172.25.254.200 2.client主机的主机名称为: client.example.com 编写脚本文件 #!/bin/bash hostnamectl hostname client.example.com cd /etc/NetworkManager/system-connections/ rm -fr * cat > eth0.nmconnection < [connection] id=eth0 type=ethernet interface-name=eth0 [ipv4] method=manual address1=172.25.254.$1/24,172.25.254.2 dns=114.114.114.114; EOF chmod 600 eth0.nmconnection nmcli connection reload nmcli connection up eth0 echo "172.25.254.$1 server$1.shaohua.org" >> /etc/hosts 执行脚本文件 [root@client ~]# vmset.sh 200 连接已成功激活（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/3） [root@client ~]# hostname client.example.com [root@client ~]# ifconfig eth0: flags=4163 inet 172.25.254.200 netmask 255.255.255.0 broadcast 172.25.254.255 inet6 fe80::f259:5f8a:c87f:25f8 prefixlen 64 scopeid 0x20 ether 00:0c:29:5a:50:6e txqueuelen 1000 (Ethernet) RX packets 5554 bytes 8280302 (7.8 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1734 bytes 99352 (97.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10 loop txqueuelen 1000 (Local Loopback) RX packets 50 bytes 4856 (4.7 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 50 bytes 4856 (4.7 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 [root@client ~]# 3.同步172.25.254.100主机的时间到达本机 [root@client ~]# systemctl stop chronyd.service [root@client ~]# vim /etc/chrony.conf [root@client ~]# systemctl restart chronyd.service 4.用命令显示对于172.25.254.100主机的时间同步情况 柚子快报邀请码778899分享：Linux-时间同步服务器 推荐链接
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