重開機後忘記把iso mount到指定目錄
mount -t iso9660 -o loop filename.iso /media/CentOS
出現唯讀警告可以不用理會
yum install package_name
成功
2021/2/20
Windows作業系統處理網路封包不當造成3個TCP/IP實作漏洞 CVE-2021-24074、CVE-2021-24094、CVE-2021-24086
[重大安全性更新通報]
微軟Windows作業系統中的TCP/IP存在安全性漏洞，可讓攻擊者利用漏洞遠端執行任意程式碼(RCE)或阻斷服務(DoS)攻擊。微軟已釋出修補套件，請儘速進行修補。
微軟Windows作業系統存在3個TCP/IP實作漏洞(處理網路封包不當造成) (CVE-2021-24074、CVE-2021-24094、CVE-2021-24086)，其IPv4 Source routing功能存在漏洞，或額外設置IPv6 IP時，則可讓攻擊者利用漏洞遠端執行任意程式碼(RCE)或阻斷服務(DoS)攻擊。微軟已釋出修補套件，相關Patch已部署至WU主機，請儘速進行修補。
詳細官方更新說明請參考微軟官網
一、 CVE-2021-24074、CVE-2021-24094、CVE-2021-24086影響範圍：
CVE CVSS分數 受漏洞影響功能 影響
CVE-2021-24074 9.8 IPv4 Source routing RCE (遠端程式碼執行)
CVE-2021-24094 9.8 IPv6 RCE (遠端程式碼執行)
CVE-2021-24086 7.5 IPv6 DOS (阻斷服務)
二、 修補方式：
微軟受影響產品 修補套件
(Monthly Rollup和Security Only擇一修補即可)
Windows Server, version 20H2 (Server Core Installation)
Windows 10 Version 20H2 for ARM64-based Systems
Windows 10 Version 20H2 for 32-bit Systems
Windows 10 Version 20H2 for x64-based Systems
Windows Server, version 2004 (Server Core installation)
Windows 10 Version 2004 for x64-based Systems
Windows 10 Version 2004 for ARM64-based Systems
Windows 10 Version 2004 for 32-bit Systems Security Update:KB4601319
Windows Server, version 1909 (Server Core installation)
Windows 10 Version 1909 for ARM64-based Systems
Windows 10 Version 1909 for x64-based Systems
Windows 10 Version 1909 for 32-bit Systems Monthly Rollup:KB4601380
Security Update: KB4601315
Windows Server 2012 R2 (Server Core installation)
Windows Server 2012 R2
Windows 8.1 for x64-based systems
Windows 8.1 for 32-bit systems Monthly Rollup: KB4601384
Security Only: KB4601349
Windows Server 2012 (Server Core installation)
Windows Server 2012 Monthly Rollup: KB4601348
Security Only: KB4601357
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1
Windows 7 for 32-bit Systems Service Pack 1 Monthly Rollup: KB4601347
Security Only: KB4601363
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for 32-bit Systems Service Pack 2 Monthly Rollup: KB4601360
Security Only: KB4601366
Windows RT 8.1 KB4601384
Windows Server 2016 (Server Core installation)
Windows Server 2016
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems Security Update: KB4601318
Windows 10 for x64-based Systems
Windows 10 for 32-bit Systems Security Update:KB4601331
Windows Server 2019 (Server Core installation)
Windows Server 2019
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1809 for 32-bit Systems Security Update: KB4601345
Windows 10 Version 1803 for ARM64-based Systems
Windows 10 Version 1803 for x64-based Systems
Windows 10 Version 1803 for 32-bit Systems Security Update: KB4601354
詳細官方更新說明請參考微軟官網，連結如下:
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24074
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24094
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24086
※ 設備更新前，敬請進行完整評估與測試
※ 請勿使用外部網站進行弱點測試
https://msrc-blog.microsoft.com/2021/02/09/multiple-security-updates-affecting-tcp-ip/
2021/2/18
file system speed for ssd
FS sec speed
EXT2 1.662 602 MB/s
EXT3 1.074 931 MB/s
F2FS 1.060 943 MB/s
FAT32 3.085 324 MB/s
HFS+ .946 1057 MB/s
JFS 1.370 730 MB/s
NTFS 7.637 131 MB/s
ReiserFS 1.310 763 MB/s
UDF 2.194 456 MB/s
XFS .4935 2026 MB/s
2021/2/5
8K怎麼組一台8GRAM /128G ROM還帶OS與office的迷你PC
這題目都可以拍兩到三隻油管廢片
1. 去收二代以上二手i5 matx板扇或品牌機帶隨機win7自己升版
但是office可攜都不會附 所以去買全新office
收來的不是迷你殼的話 買部麻雀小王子水玲瓏去裝matx版
這樣8千可辦到 ram ssd就自己補 最差wd blue/mx500
2. 若全新8g/128G只能拿3000g在加win10
3. ECS 精英 LIVA Z2V 迷你電腦(N4000、4G、64G eMMC + win10pro)
+365一年訂閱=8180
訂閱：
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