๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ

๋ถ„๋ฅ˜ ์ „์ฒด๋ณด๊ธฐ39

Telegram API๋ฅผ ํ™œ์šฉํ•œ bot ๋งŒ๋“ค๊ธฐ ์ด๋ฒˆ์—๋Š” Telegram ์„ ํ™œ์šฉํ•˜์—ฌ ํŠน์ •ํ•œ ์กฐ๊ฑด์ผ ๋•Œ ์•Œ๋ฆผ์„ ๋ฐ›์„ ์ˆ˜ ์žˆ๋„๋ก ํ•˜๋Š” bot ์„ ๋งŒ๋“ค์–ด ๋ณด๊ณ ์ž ํ•ฉ๋‹ˆ๋‹ค. ์šฐ์„  Telegram ์—์„œ ๋ฉ”์‹œ์ง€๋ฅผ ๋ณด๋‚ผ ๊ณ„์ •(bot)์„ ๋งŒ๋“ค์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค 1. Telegram API ์ค€๋น„ํ•˜๊ธฐ 1.1. PC ์— ํ…”๋ ˆ๊ทธ๋žจ ์„ค์น˜ ํ›„ ๊ฒ€์ƒ‰์ฐฝ์— "BotFather" ๋ฅผ ๊ฒ€์ƒ‰ํ•ฉ๋‹ˆ๋‹ค. 1.2 ์„ ํƒ ํ›„ “/start” ๋ฅผ ์ž…๋ ฅ ์ „์†ก ํ•ฉ๋‹ˆ๋‹ค. 2. ์ƒˆ๋กœ์šด Telegram Bot ์„ ๋งŒ๋“ค ์ฐจ๋ก€! - “/newbot” ์ž…๋ ฅ ํ›„ ์›ํ•˜๋Š” bot์˜ ์ด๋ฆ„์„ ์ง€์ •ํ•ฉ๋‹ˆ๋‹ค. - Bot์˜ ์ด๋ฆ„์—๋Š” ‘bot’์ด๋ผ๋Š” ๋‹จ์–ด๊ฐ€ ํฌํ•จ๋˜์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. - ๋‘๋ฒˆ์งธ ๋นจ๊ฐ„ ๋ฐ•์Šค์˜ ๊ฐ’์ด ์ƒ์„ฑํ•œ ๋ด‡์˜ Token ์ž…๋‹ˆ๋‹ค. (๋‚˜์ค‘์— ํ™œ์šฉํ•ด์•ผํ•จ) 3. Telegram Bot “Chat ID” ํ™•์ธ ๋ฐฉ๋ฒ• 3.1 ์œ„ ์‚ฌ์ง„์˜ ์ฒซ๋ฒˆ์งธ.. 2022. 10. 19.
[IT ์šฉ์–ด] On-Premise / IaaS / PaaS / SaaS On-Premise ์ผ๋ฐ˜์ ์œผ๋กœ ํšŒ์‚ฌ์—์„œ ๋ชจ๋“  ๊ฒƒ์„ ๊ด€๋ฆฌ ์šด์˜ํ•˜๋Š” ๋ฐฉ์‹์ด๋‹ค. ํšŒ์‚ฌ์—์„œ ๋ณด์œ ํ•œ ์ „์‚ฐ์‹ค์— ์„œ๋ฒ„๋ฅผ ์ง์ ‘ ๊ตฌ์ถ•ํ•˜์—ฌ ๊ฐœ๋ฐœ ๋ฐ ์šด์˜ํ•˜๋Š” ๋ฐฉ์‹, ์„œ๋ฒ„๊ฐ€ ์‚ฌ๋‚ด์— ๋ฌผ๋ฆฌ์ ์œผ๋กœ ์กด์žฌํ•˜๋ฉฐ ํšŒ์‚ฌ์™€ ์‚ฌ๋‚ด IT ํŒ€ ๋˜๋Š” IT ํŒŒํŠธ๋„ˆ๊ฐ€ ์ง์ ‘ ์ œ์–ด, ๊ด€๋ฆฌ, ์œ ์ง€ ๋ฐ ์กฐ๋‹ฌํ•˜๋Š” ๋ฐฉ์‹ ํด๋ผ์šฐ๋“œ ์ปดํ“จํŒ… ๊ธฐ์ˆ ์ด ๋‚˜์˜ค๊ธฐ ์ „๊นŒ์ง€๋Š” ๊ธฐ์—…์—์„œ๋Š” On-Premise ๋ฐฉ์‹์œผ๋กœ ์„œ๋น„์Šค๋ฅผ ์šด์˜ ํ–ˆ์œผ๋‚˜ ์ตœ๊ทผ์—๋Š” ํด๋ผ์šฐ๋“œ๋ฅผ ์‚ฌ์šฉํ•œ ์‹œ์Šคํ…œ ๊ตฌ์ถ•์ด ๋งŽ์ด ์ด๋ฃจ์–ด์ง€๊ณ  ์žˆ๋‹ค. Infrastructure as a Service (IaaS) - ํ™•์žฅ ๋ฐ ์ถ•์†Œ์˜ ์œ ์—ฐ์„ฑ IaaS ๊ณต๊ธ‰์ž : ์„œ๋ฒ„, ํ•˜๋“œ ๋“œ๋ผ์ด๋ธŒ, ๋„คํŠธ์›Œํ‚น, ๊ฐ€์ƒํ™” ๋ฐ ์Šคํ† ๋ฆฌ์ง€ ์ž์› ๊ด€๋ฆฌ ๊ณ ๊ฐ : OS, ๋ฏธ๋“ค์›จ์–ด, ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜ ๋ฐ ๋ฐ์ดํ„ฐ์™€ ๊ฐ™์€ ์ž์›์„ ๊ด€๋ฆฌ ๊ณ ๊ฐ์—๊ฒŒ ์„œ๋ฒ„, ๋„คํŠธ์›Œํฌ, OS, ์Šคํ† ๋ฆฌ.. 2022. 10. 2.
[์„œ๋น„์Šค ์†Œ๊ฐœ] OSINT Open Source + Intelligence ๋ž€? OSINT(Open Source Intelligence)๋Š” ๊ณต๊ฐœ๋œ ์ถœ์ฒ˜๋ผ๋Š” ์˜๋ฏธ๋กœ Open Source์™€ ๊ตฐ(Military)์—์„œ ์ •๋ณด๋ฅผ ์ˆ˜์ง‘ํ•˜๋Š” ์ฒฉ๋ณดํ™œ๋™์—์„œ ์œ ๋ž˜๋œ Intelligence๊ฐ€ ํ•ฉ์ณ์ ธ ํƒ„์ƒํ•œ ์šฉ์–ด ์ถœ์ฒ˜ : https://www.kisec.com/rsrh_rpt_det.do?id=163 ๊ฐ„๋‹จํ•˜๊ฒŒ๋Š” ์˜จ๋ผ์ธ ์ƒ์— ๋„๋ฆฌ ํผ์ ธ ์žˆ๋Š” ๊ฐ์ข… ์ •๋ณด๋“ค์„ ํ•œ ๊ณณ์— ๋ชจ์•„์„œ ๋ณผ ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์ฃผ๋Š” ์—ญํ• ์„ ํ•˜๋Š” ๊ฒƒ ๊ฐ™๋‹ค 1. Shodan Shodan Search engine of Internet-connected devices. Create a free account to get started. www.shodan.io 2. Criminal IP Cybersecu.. 2022. 9. 3.
Microsoft-Event Log ๋ถ„์„์— ๋„์›€์ด ๋˜๋Š” Map Github์— ์นจํ•ด ์‚ฌ๊ณ  ๋Œ€์‘ ๋ฐ ๋กœ๊ทธ ์ˆ˜์ง‘์— ๋„์›€์ด ๋  ๋‚ด์šฉ์ด ๊ธฐ๋ก๋˜์–ด ์žˆ์–ด์„œ ๊ณต์œ . GitHub - mdecrevoisier/Microsoft-eventlog-mindmap: Set of Mindmaps providing a detailed overview of the different #Microsoft aud Set of Mindmaps providing a detailed overview of the different #Microsoft auditing capacities for Windows, Exchange, Azure,... - GitHub - mdecrevoisier/Microsoft-eventlog-mindmap: Set of Mindmaps p... github.com 2022. 9. 3.
[News] '๋ ˆ๋นŒ' ์‹ฌ์ƒ์น˜ ์•Š๋‹ค…๋‹คํฌ์›น์„œ ้Ÿ“ ๊ธฐ์—…๋ฐ์ดํ„ฐ ํƒˆ์ทจ '์ฃผ์žฅ' '๋ ˆ๋นŒ' ์‹ฌ์ƒ์น˜ ์•Š๋‹ค…๋‹คํฌ์›น์„œ ้Ÿ“ ๊ธฐ์—…๋ฐ์ดํ„ฐ ํƒˆ์ทจ '์ฃผ์žฅ' [๋ฐ์ดํ„ฐ๋ง] ์ง€๋‚œํ•ด 7์›” ์นด์„ธ์•ผ(Kaseya) ๊ณต๊ธ‰๋ง ๊ณต๊ฒฉ์œผ๋กœ ์ „ ์„ธ๊ณ„๋ฅผ ๊ณตํฌ์— ๋ชฐ์•„๋„ฃ์—ˆ๋˜ '๋ ˆ๋นŒ(REvil)'์€ ๋ฏธ๊ตญ ์ •๋ถ€์˜ ์••๋ ฅ๊ณผ ๊ตญ์ œ ๊ณต์กฐ ์ˆ˜์‚ฌ๋กœ ์‚ฌ์‹ค์ƒ ํ•ด์ฒด๋œ ๊ฒƒ์œผ๋กœ ์•Œ๋ ค์กŒ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์˜ฌํ•ด 5์›” ๋ ˆ๋นŒ์˜ ๋‹คํฌ์›น ์‚ฌ n.news.naver.com 2022. 8. 13.
Internet Explorer TLS, ์„ค์ • ๋ฐฉ๋ฒ• TLS(Transport Layer Security) ์ธํ„ฐ๋„ท ์ƒ์˜ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜์„ ์œ„ํ•œ ๊ฐœ์ธ ์ •๋ณด์™€ ๋ฐ์ดํ„ฐ ๋ณด์•ˆ์„ ์šฉ์ดํ•˜๊ฒŒ ํ•˜๊ธฐ ์œ„ํ•ด ์„ค๊ณ„๋˜์–ด ๋„๋ฆฌ ์ฑ„ํƒ๋œ ๋ณด์•ˆ ํ”„๋กœํ† ์ฝœ TLS์˜ ์ฃผ์š” ์‚ฌ์šฉ ์‚ฌ๋ก€๋Š” ์›น ์‚ฌ์ดํŠธ๋ฅผ ๋กœ๋“œํ•˜๋Š” ์›น ๋ธŒ๋ผ์šฐ์ €์™€ ๊ฐ™์ด ์›น ์‘์šฉ ํ”„๋กœ๊ทธ๋žจ๊ณผ ์„œ๋ฒ„ ๊ฐ„์˜ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜์„ ์•”ํ˜ธํ™”ํ•˜๋Š” ๊ฒƒ TLS๋Š” ๋˜ํ•œ ์ด๋ฉ”์ผ, ๋ฉ”์‹œ์ง€, ๋ณด์ด์Šค์˜ค๋ฒ„ IP(VoIP)์™€ ๊ฐ™์€ ๋‹ค๋ฅธ ์ปค๋ฎค๋‹ˆ์ผ€์ด์…˜์„ ์•”ํ˜ธํ™”ํ•˜๊ธฐ ์œ„ํ•ด ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค. TLS ํ”„๋กœํ† ์ฝœ์˜ ์—ญํ•  ์•”ํ˜ธํ™”: ์ œ3์ž๋กœ๋ถ€ํ„ฐ ์ „์†ก๋˜๋Š” ๋ฐ์ดํ„ฐ๋ฅผ ์ˆจ๊น๋‹ˆ๋‹ค. ์ธ์ฆ: ์ •๋ณด๋ฅผ ๊ตํ™˜ํ•˜๋Š” ๋‹น์‚ฌ์ž๊ฐ€ ์š”์ฒญ๋œ ๋‹น์‚ฌ์ž์ž„์„ ๋ณด์žฅํ•ฉ๋‹ˆ๋‹ค. ๋ฌด๊ฒฐ์„ฑ: ๋ฐ์ดํ„ฐ๊ฐ€ ์œ„์กฐ๋˜๊ฑฐ๋‚˜ ๋ณ€์กฐ๋˜์ง€ ์•Š์•˜๋Š”์ง€ ํ™•์ธํ•ฉ๋‹ˆ๋‹ค. ์ถœ์ฒ˜ : https://www.cloudflare.com/ko-kr/learning/ssl/transport.. 2022. 8. 11.
[Linux CentOS 7 ] NTP ์„ค์ • ๋ฐฉ๋ฒ• NTP ์„ค์ • ๋งค๋‰ด์–ผ ( CentOS Linux release 7.9 ) NTP ์„œ๋น„์Šค ํ™œ์„ฑํ™” ์—ฌ๋ถ€ ํ™•์ธ ๋ฐฉ๋ฒ• - systemctl status ntpd.service - ํ˜„์žฌ ์„œ๋ฒ„์— NTP ์„œ๋น„์Šค๊ฐ€ ํ™œ์„ฑํ™”๋˜์–ด ์žˆ๋Š”์ง€ ํ™•์ธํ•  ์ˆ˜ ์žˆ๋‹ค [root@localhost ~]# systemctl status ntpd.service โ— ntpd.service - Network Time Service Loaded: loaded (/usr/lib/systemd/system/ntpd.service; enabled; vendor preset: disabled) Active: inactive (dead) NTP ์„œ๋น„์Šค Config ์„ค์ • ๋ฐฉ๋ฒ• - /etc/ntp.conf ํŒŒ์ผ ํ™•์ธ - ์‚ฌ์šฉํ•  NTP ์„œ๋ฒ„ ์ถ”๊ฐ€ - ์ธํ„ฐ๋„ท ๊ฒ€์ƒ‰ํ•˜.. 2022. 8. 6.