s
centos8 stream 開啟web console控制台頁面
ctivate the web console with: systemctl enable --now cockpit.socket
Last login: Wed Sep 8 05:00:12 2021 from 112.80.230.67
cd /var/log/sssd
[root@centos8 ~]# cd /var/log/sssd
[root@centos8 sssd]# systemctl enable --now cockpit.socket
Created symlink /etc/systemd/system/sockets.target.wants/cockpit.socket → /usr/lib/systemd/system/cockpit.socket.
http://mirrors.njupt.edu.cn/centos/8.4.2105/isos/x86_64/CentOS-8.4.2105-x86_64-dvd1.iso
Question 3: Centos 8 Stream yum exception
Answer 3:
CentOS 8 / CentOS Stream 換源，設置dnf / yum鏡像
https://www.cnblogs.com/wswind/p/11751829.html
aliyun鏡像#
2021-5-18 add:
阿里雲鏡像的幫助站點掛了很久了，一直提示正在升級。但是目前僅影響幫助頁面，實際的地址還是可以用的。本教程中mirrors.aliyun.com地址也可替換為其他鏡像源地址，一般來說區別不大，如：mirrors.tuna.tsinghua.edu.cn / repo.huaweicloud.com
官方教程如下，注意此處下載的不是Stream版本的repo
問題2：cents 8 設置時間同步服務器，NTP不支持，僅支持chronyd
解決2：chronyd.conf 文件尾部添加如下內容
[root@centos8 ~]# vim /etc/chronyd.conf
server 10.27.126.249
[root@centos8 ~]# systemctl restart chronyd
問題1：Centos8 開機后顯示 Activate the web console with: systemctl enable --now cockpit.socke
解決1：CentOS8 系統自帶Web Console功能，可以通過瀏覽器管理主機。
http://blog.sina.com.cn/s/blog_72ffeed50102ycv6.html
https://www.cnblogs.com/lindows/p/11167217.html
https://www.cnblogs.com/ttrrpp/p/12109408.html
[root@centos8 rc.d]# systemctl start cockpit.socket # 運行Cockpit服務
[root@centos8 rc.d]# systemctl enable –now cockpit.socket # 啟動該服務，隨系統啟動一同啟動
[root@centos8 rc.d]# systemctl status cockpit.socket
[root@centos8 rc.d]# systemctl enable --now cockpit.socket
Created symlink /etc/systemd/system/sockets.target.wants/cockpit.socket → /usr/lib/systemd/system/cockpit.socket.
[root@centos8 rc.d]# ll /etc/systemd/system/sockets.target.wants/cockpit.socket
lrwxrwxrwx. 1 root root 38 Feb 8 10:14 /etc/systemd/system/sockets.target.wants/cockpit.socket -> /usr/lib/systemd/system/cockpit.socket
然后在瀏覽器中訪問地址：http://主機地址:9090 ，即可進入控制台。
問題2 ：Centos 8 重回圖形界面方法
解決2：
[root@centos8 rc.d]# systemctl get-default
graphical.target
運行下面兩個命令后，再重啟就ok了！重啟系統進入圖形化桌面
[root@centos8 rc.d]# yum grouplist
[root@centos8 rc.d]# yum groupinstall -y "Server with GUI"
CentOS 8 U盤安裝及Installation Source報錯和ssh報錯的解決方法
https://www.jianshu.com/p/60f7750a97d5
問題1：使用 UltraISO 制作啟動盤時，Centos8 Stream在安裝界面容易產生 Installation Source 的報錯問題，
解決1：使用 win32diskimager 制作啟動盤。
http://mirrors.nju.edu.cn/centos/8-stream/isos/x86_64/CentOS-Stream-8-x86_64-20201211-dvd1.iso
http://mirrors.163.com/centos/8-stream/isos/x86_64/CentOS-Stream-8-x86_64-20201211-dvd1.iso
http://mirrors.nju.edu.cn/centos/8.3.2011/isos/x86_64/CentOS-8.3.2011-x86_64-dvd1.iso
http://isoredirect.centos.org/centos/8/isos/x86_64/
http://mirrors.huaweicloud.com/centos/8.2.2004/isos/x86_64/
http://mirrors.tuna.tsinghua.edu.cn/centos/8.2.2004/isos/x86_64/
http://mirrors.njupt.edu.cn/centos/8.2.2004/isos/x86_64/
http://mirrors.cqu.edu.cn/CentOS/8.2.2004/isos/x86_64/
http://mirrors.neusoft.edu.cn/centos/8.2.2004/isos/x86_64/
http://mirrors.163.com/centos/8.2.2004/isos/x86_64/
http://mirrors.cn99.com/centos/8.2.2004/isos/x86_64/
http://mirrors.bfsu.edu.cn/centos/8.2.2004/isos/x86_64/
http://mirror.bit.edu.cn/centos/8.2.2004/isos/x86_64/
http://mirrors.aliyun.com/centos/8.2.2004/isos/x86_64/
http://ftp.sjtu.edu.cn/centos/8.2.2004/isos/x86_64/
http://mirrors.nju.edu.cn/centos/8.2.2004/isos/x86_64/
CentOS 8和7版本對比
| 功能 | CentOS 8 | CentOS 7 |
|---|---|---|
| 內核版本 | 4.18.0-x | 3.10.0-x |
| 文件系統 | XFS | XFS |
| 時間同步 | 只支持Chronyd | 支持NTP和Chronyd |
| 文件大小 | 8EB | 500TB |
| 文件系統大小 | 1PB | 500TB |
| 包管理工具 | DNF（YUM v4） | YUM（YUM v3） |
| 最大內存 | 24TB | 12TB |
| 防火牆 | nftables取代iptables | firewalld底層使用iptables |
| 支持架構 | 支持64-bit ARM | 不支持64-bit ARM |
| 網絡管理 | 默認安裝Cockpit | 無默認安裝 |
| CPU日志 | CPU日志記錄在journald進程中 | CPU相關日志位於/var/log/cups目錄 |
| 發布時間 | 2019-09-24 | 2014-07-07 |
| 完整更新 | 2024-05-01 | 2020-08-06 |
| 支持IPv6 | 支持 | Ready Logo Phase 2 |
| Git | 2.18 | 1.7 |
| GCC | 8.2.1 | 4.8.5 |
| Python | 3.6.6 | 2.7.5 |
| Glibc | 2.28 | 2.17 |
| Boost | 1.66 | 1.53 |
| LLVM/Clang | 6.0 | 5.0 |
d
Linux查看硬件信息命令
一、查看服務器硬件信息
（1）查看服務器型號、序列號
[root@Master ~]# dmidecode|grep "System Information" -A9|egrep "Manufacturer|Product|Serial"
（2）查看主板型號
[root@Master ~]# dmidecode |grep -A16 "System Information$" 
（3）查看BIOS信息
[root@Master ~]# dmidecode -t bios
# dmidecode 2.12
SMBIOS 2.8 present.
Handle 0x0008, DMI type 0, 24 bytes
BIOS Information
Vendor: HP
Version: U19
Release Date: 12/27/2015
Address: 0xF0000
Runtime Size: 64 kB
ROM Size: 16384 kB
Characteristics:
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
ESCD support is available
Boot from CD is supported
Selectable boot is supported
EDD is supported
5.25"/360 kB floppy services are supported (int 13h)
5.25"/1.2 MB floppy services are supported (int 13h)
3.5"/720 kB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Function key-initiated network boot is supported
Targeted content distribution is supported
UEFI is supported
BIOS Revision: 2.0
Firmware Revision: 2.40
（3）查看內存槽及內存條
[root@Master ~]# dmidecode -t memory | head -45 | tail -23
Memory Device
Array Handle: 0x000A
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: DIMM
Set: None
Locator: PROC 1 DIMM 1
Bank Locator: Not Specified
Type: DDR4
Type Detail: Synchronous Registered (Buffered)
Speed: 2133 MHz
Manufacturer: HP
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: 752369-081
Rank: 2
Configured Clock Speed: 2133 MHz
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
[root@Master ~]#
（4）查看網卡信息
[root@Master ~]# dmesg | grep -i Ethernet igb: Intel(R) Gigabit Ethernet Network Driver - version 5.3.0-k igb 0000:04:00.0: Intel(R) Gigabit Ethernet Network Connection igb 0000:04:00.1: Intel(R) Gigabit Ethernet Network Connection igb 0000:04:00.2: Intel(R) Gigabit Ethernet Network Connection igb 0000:04:00.3: Intel(R) Gigabit Ethernet Network Connection igb 0000:02:00.0: Intel(R) Gigabit Ethernet Network Connection igb 0000:02:00.1: Intel(R) Gigabit Ethernet Network Connection
（5） 查看pci信息，即主板所有硬件槽信息
[root@Master ~]# lspci | head -10 00:00.0 Host bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 DMI2 (rev 02) 00:01.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 1 (rev 02) 00:01.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 1 (rev 02) 00:02.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02) 00:02.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02) 00:02.2 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02) 00:02.3 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 2 (rev 02) 00:03.0 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 3 (rev 02) 00:03.1 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 3 (rev 02) 00:03.2 PCI bridge: Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 PCI Express Root Port 3 (rev 02)
二、查看CPU信息
（1）查看cpu型號
[root@Master ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
40 Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz
（2）查看系統中實際物理CPU的數量（物理）
[root@Master ~]# grep 'physical id' /proc/cpuinfo | sort | uniq | wc -l 2
（3）系統中實際物理CPU的數量（核數）
[root@Master ~]# cat /proc/cpuinfo |grep 'processor'|wc -l 40
（4）查看每個物理CPU中core的個數(即核數)
[root@Master ~]# cat /proc/cpuinfo |grep "cores"|uniq cpu cores : 10
（5）查看CPU的主頻
[root@Master ~]# cat /proc/cpuinfo |grep MHz|uniq cpu MHz : 1200.000 cpu MHz : 2300.000 cpu MHz : 1200.000
（6）查看CPU的詳細信息
[root@Master ~]# cat /proc/cpuinfo | head -20 processor : 0 //邏輯處理器的ID vendor_id : GenuineIntel cpu family : 6 model : 63 model name : Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz //CPU型號 stepping : 2 microcode : 54 cpu MHz : 1200.000 cache size : 25600 KB physical id : 0 siblings : 20 //相同物理封裝處理器中邏輯處理器數 core id : 0 cpu cores : 10 //相同物理封裝處理器中的內核數 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 15 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb xsaveopt pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase bmi1 avx2 smep bmi2 erms invpcid cqm cqm_llc cqm_occup_llc
（7）查看CPU的相關信息
[root@Master ~]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 40 On-line CPU(s) list: 0-39 Thread(s) per core: 2 Core(s) per socket: 10 Socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family: 6 Model: 63 Model name: Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz Stepping: 2 CPU MHz: 1200.000 BogoMIPS: 4594.43 Virtualization: VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 25600K NUMA node0 CPU(s): 0-9,20-29 NUMA node1 CPU(s): 10-19,30-39 [root@Master ~]#
（8）查看cpu運行模式
[root@Master ~]# getconf LONG_BIT 64
（9）查看cpu是否支持64bit
[root@Master ~]# cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l 40 (結果大於0, 說明支持64bit計算. lm指long mode, 支持lm則是64bit)
三、查看內存信息
（1）查看內存硬件信息
root@Master ~]# dmidecode -t memory | head -45 | tail -24
Handle 0x000C, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x000A
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 16384 MB
Form Factor: DIMM
Set: None
Locator: PROC 1 DIMM 1
Bank Locator: Not Specified
Type: DDR4
Type Detail: Synchronous Registered (Buffered)
Speed: 2133 MHz
Manufacturer: HP
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: 752369-081
Rank: 2
Configured Clock Speed: 2133 MHz
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V
（2）最大支持多少內存
[root@Master ~]# dmidecode|grep -P 'Maximum\s+Capacity'
（3）Linux 查看內存的插槽數,已經使用多少插槽.每條內存多大：
（4）Linux 查看內存的頻率：
[root@Master ~]# dmidecode|grep -A16 "Memory Device"|grep 'Speed'
（5）Linux 查看內存的詳細信息：
[root@Master ~]# cat /proc/meminfo |head -20 MemTotal: 131897620 kB MemFree: 414124 kB Buffers: 1040560 kB Cached: 111083180 kB SwapCached: 1320 kB Active: 7637912 kB Inactive: 110607108 kB Active(anon): 4406900 kB Inactive(anon): 1714900 kB Active(file): 3231012 kB Inactive(file): 108892208 kB Unevictable: 10878976 kB Mlocked: 5521652 kB SwapTotal: 16777212 kB SwapFree: 16737536 kB Dirty: 180 kB Writeback: 0 kB AnonPages: 16999324 kB Mapped: 149020 kB Shmem: 172 kB
（6）Linux 查看內存的使用情況
[root@Master ~]# free -m // -b,-k,-m,-g show output in bytes, KB, MB, or GB
total used free shared buffers cached
Mem: 128806 123407 5398 0 1015 103474
-/+ buffers/cache: 18918 109888
Swap: 16383 38 16345
四、查看硬盤信息
（1）查看掛接的分區狀態
[root@Master ~]# fdisk -l |grep Disk
（2）查看硬盤和分區分布
[root@Master ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 279.4G 0 disk ├─sda1 8:1 0 50M 0 part /boot ├─sda2 8:2 0 100G 0 part / ├─sda3 8:3 0 50G 0 part /home ├─sda4 8:4 0 1K 0 part ├─sda5 8:5 0 16G 0 part [SWAP] ├─sda6 8:6 0 13.3G 0 part /tmp └─sda7 8:7 0 100G 0 part /usr sdb 8:16 0 83.7T 0 disk └─sdb1 8:17 0 83.7T 0 part /PureDisk
（3）查看硬盤和分區的詳細信息
[root@Master ~]# fdisk -l Disk /dev/sda: 300.0 GB, 299966445568 bytes 255 heads, 63 sectors/track, 36468 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 262144 bytes / 262144 bytes Disk identifier: 0x000384d9 Device Boot Start End Blocks Id System /dev/sda1 * 1 7 51200 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 7 13061 104857600 83 Linux /dev/sda3 13061 19588 52428800 83 Linux /dev/sda4 19588 36469 135597056 5 Extended /dev/sda5 19588 21677 16777216 82 Linux swap / Solaris /dev/sda6 21677 23415 13962240 83 Linux /dev/sda7 23416 36469 104854528 83 Linux WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sdb: 92017.3 GB, 92017310654464 bytes 255 heads, 63 sectors/track, 11187134 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 262144 bytes / 6029312 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 267350 2147483647+ ee GPT Partition 1 does not start on physical sector boundary.
（4）查看掛接的分區狀態
[root@Master ~]# mount | column -t /dev/sda2 on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) /dev/sda1 on /boot type ext4 (rw) /dev/sda3 on /home type ext4 (rw) /dev/sda6 on /tmp type ext4 (rw) /dev/sda7 on /usr type ext4 (rw) /dev/sdb1 on /PureDisk type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw
（5）查看掛接的分區狀態
[root@Master ~]# swapon -s Filename Type Size Used Priority /dev/sda5 partition 16777212 39676 -1
（6）查看硬盤使用情況
[root@Master ~]# df -hT Filesystem Type Size Used Avail Use% Mounted on /dev/sda2 ext4 99G 561M 93G 1% / tmpfs tmpfs 63G 76K 63G 1% /dev/shm /dev/sda1 ext4 45M 38M 4.9M 89% /boot /dev/sda3 ext4 50G 52M 47G 1% /home /dev/sda6 ext4 13G 34M 13G 1% /tmp /dev/sda7 ext4 99G 21G 73G 23% /usr /dev/sdb1 ext4 84T 41T 40T 51% /PureDisk
（7） 硬盤檢測命令smartctl
[root@Master ~]# smartctl -a /dev/sda smartctl 5.43 2012-06-30 r3573 [x86_64-linux-2.6.32-642.el6.x86_64] (local build) Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net Vendor: HP Product: LOGICAL VOLUME Revision: 3.56 User Capacity: 299,966,445,568 bytes [299 GB] Logical block size: 512 bytes Logical Unit id: 0x600508b1001cc8a1b9ec4dacc5ab35dc Serial number: PDNNK0BRH9U0AG Device type: disk Local Time is: Mon Feb 5 13:13:33 2018 CST Device supports SMART and is Enabled Temperature Warning Disabled or Not Supported SMART Health Status: OK Error Counter logging not supported Device does not support Self Test logging
五、查看網卡信息
（1)查看網卡硬件信息
[root@Master ~]# lspci | grep -i 'eth'
(2)查看系統的所有網絡接口
[root@Master ~]# ifconfig -a [root@Master ~]# ip link show
(3)查看某個網絡接口的詳細信息，例如eth0的詳細參數和指標
[root@Master ~]# ethtool eth0
Settings for eth0:
Supported ports: [ FIBRE ]
Supported link modes: 10000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: No
Advertised link modes: 10000baseT/Full
Advertised pause frame use: No
Advertised auto-negotiation: No
Speed: 10000Mb/s
Duplex: Full
Port: FIBRE
PHYAD: 0
Transceiver: external
Auto-negotiation: off
Supports Wake-on: d
Wake-on: d
Current message level: 0x00000007 (7)
drv probe link
Link detected: yes
(4)查看所有網卡的鏈路狀態
[root@Master ~]# for i in `seq 0 9`;do ethtool eth${i} | egrep 'eth|Link';done
Settings for eth0:
Link detected: yes
Settings for eth1:
Link detected: yes
Settings for eth2:
Link detected: no
Settings for eth3:
Link detected: no
Settings for eth4:
Link detected: no
Settings for eth5:
Link detected: no
Settings for eth6:
Link detected: no
Settings for eth7:
Link detected: no
Settings for eth8:
Link detected: no
Settings for eth9:
Link detected: no
六、列出所有PCI設備信息
[root@Master ~]# lspci -tv | more -+-[0000:ff]-+-08.0 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link 0 | +-08.3 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link 0 | +-09.0 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link 1 | +-09.3 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 QPI Link 1 | +-0b.0 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link 0 & 1 Monitoring | +-0b.1 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link 0 & 1 Monitoring | +-0b.2 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 R3 QPI Link 0 & 1 Monitoring | +-0c.0 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0c.1 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0c.2 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0c.3 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0c.4 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0c.5 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0c.6 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0c.7 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0d.0 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0d.1 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Unicast Registers | +-0f.0 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent | +-0f.1 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent | +-0f.2 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent | +-0f.3 Intel Corporation Xeon E7 v3/Xeon E5 v3/Core i7 Buffered Ring Agent
end
CentOS 8 U盤安裝及Installation Source報錯和ssh報錯的解決方法
chronyd.conf