阿里云ECS实例中,CentOS 6等部分老旧镜像配置为NTP服务,当前NTP服务官方已经不再维护。如果ECS实例使用的是NTP服务,且业务不依赖NTP服务,建议升级为Chrony服务。 卸载ntpd。 在升级之前,建议运行以下命令先卸载现有的ntpd服务。 Alibaba Cloud Linux/CentOS/RHEL。 sudo yum remove ntp Ubuntu/Debian。 sudo apt remove...
Debian/Ubuntu: apt install python-yaml Fedora: dnf install python-yaml CentOS/RHEL: yum install python-yaml checking iconv.h usability... yes checking iconv.h presence... yes checking for iconv.h... yes checking for libiconv_close in -liconv... yes checking for libnspr... yes checking ...
3. Ensuretime on the jump server is accurate. Use the command#ntpdate pool.ntp.orgto sync time. root@gateway:~#ntpdate pool.ntp.org 26 Sep 16:32:03 ntpdate[15219]: adjust time server 133.243.238.244 offset -0.124881 sec 4. Ensure that Root SSH login on the jump server is enabled a...
Config Server Firewall (or CSF) is a free and advanced firewall for most Linux distributions and Linux based VPS. In addition to the basic functionality of a firewall – filtering packets – CSF includes other security features, such as login/intrusion/flood detections. CSF includ...
/etc/datadog-agent/checks.dClocks===NTP offset: 5.796msSystem time: 2023-05-16 12:39:07.896 UTC (1684240747896)Host Info===bootTime: 2023-05-08 08:27:20 UTC (1683534440000)hostId: 4b527c37-dea2-5e41-8cfd-51067ed3f9ackernelArch: x86_64kernelVersion: 5.4.0-1107-azureos: linuxplatform...
Status: "Synchronized to time server 202.112.29.82:123 (0.arch.pool.ntp.org)." Tasks: 2 (limit: 512) CGroup: /system.slice/systemd-timesyncd.service └─2243 /usr/lib/systemd/systemd-timesyncd Chrony If the system clock can’t be synced to an NTP server, you can also trychrony, wh...
IPA Server: ipa.itzgeek.local BaseDN: dc=itzgeek,dc=local Skipping synchronizing time with NTP server. New SSSD config will be created Configured sudoers in /etc/nsswitch.conf Configured /etc/sssd/sssd.conf trying https://ipa.itzgeek.local/ipa/json ...
Install NTP service. Then, configure the NTP service. Typesudo nano /etc/ntp.confin the terminal, find the following 2 commented lines: # You do need to talk to an NTP server or two (or three).# server ntp.your-provider.example ...
Then add 3 lines to use NTP at boot time. Setup hostname. echo debian-zynq > /etc/hostname echo T0:2345:respawn:/sbin/getty -L ttyS0 115200 vt1000 >> /etc/inittab echo 127.0.0.1 debian-zynq >> /etc/hosts Install some applications as you like. ...
53 UDP: DNS (If you’re running a DNS server) 123 UDP: NTP (Network Time Protocol) For instance, if you want to allow HTTP port 80, SSL port 443 (HTTPS), and MySQL database port 3306, you would run the following commands: