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Pubkey Authentication not working

리λͺ¨νŠΈ μ„œλ²„μ™€ νŒ¨μŠ€μ›Œλ“œ μž…λ ₯ 없이 λΉ„λŒ€μΉ­ ν‚€λ‘œ 원격 접속을 ν•˜κ³  싢은데, ν‚€λ₯Ό μ΄μš©ν•œ 접속이 λ˜μ§€ μ•Šκ³ , ν”„λ‘¬ν”„νŠΈμ—μ„œ νŒ¨μŠ€μ›Œλ“œλ₯Ό μš”κ΅¬ν•˜λŠ” 경우 μ–΄λ–»κ²Œ λŒ€μ²˜ν•˜λ©΄ 쒋을지λ₯Ό μ•Œμ•„λ΄…μ‹œλ‹€. μ €μžμ˜ 둜컬 ν΄λΌμ΄μ–ΈνŠΈ μš΄μ˜μ²΄μ œλŠ” MacOS Bigsur, 리λͺ¨νŠΈ μ„œλ²„μ˜ 경우 CentOS 7으둜 λ˜μ–΄ μžˆλ‹€λŠ” 것을 λ¨Όμ € μ•Œλ €λ“œλ¦½λ‹ˆλ‹€. 퍼블릭 ν‚€λ₯Ό 원격 μ„œλ²„μ— 잘 λ‘μ—ˆκ³ , λ‘œμ»¬μ— 짝이 λ§žλŠ” 개인 킀도 μžˆλŠ” μƒνƒœμ—μ„œ ν‚€λ₯Ό μ§€μ •ν•˜μ—¬ ν†΅μ‹ ν•˜λ € ν–ˆμŒμ—λ„ μ‹€νŒ¨ν•œ κ²½ν—˜μ΄ μžˆμœΌμ‹œλ‹€λ©΄ λ‹€μŒκ³Ό 같은 것듀을 μ κ²€ν•΄λ³΄μ‹œκΈ° λ°”λžλ‹ˆλ‹€. 1. Check remote server 원격 μ„œλ²„μ˜ /etc/ssh/ssh/sshd_config νŒŒμΌμ— PubkeyAuthentication yes ν•­λͺ©μ΄ μžˆλŠ”μ§€ ν™•μΈν•©λ‹ˆλ‹€....

December 9, 2020 Β· 2 min Β· 352 words Β· Denver

Reverse DNS Lookup Concurrently with Go

Go Routine을 ν™œμš©ν•˜μ—¬ λŒ€λŸ‰μ˜ 아이피에 λŒ€ν•΄ Reverse DNS Lookup을 효과적으둜 μ²˜λ¦¬ν•œ 사둀λ₯Ό κ³΅μœ λ“œλ¦½λ‹ˆλ‹€. Verify Good Bot μžμ„Έν•œ μš”κ΅¬μ‚¬ν•­μ„ λ§μ”€λ“œλ¦¬κΈ΄ μ–΄λ ΅μ§€λ§Œ, λ³΄μœ ν•˜κ³  μžˆλŠ” λŒ€λŸ‰μ˜ 아이피 μ£Όμ†Œμ— λŒ€ν•΄ 각 아이피가 Good Bot(ꡬ글 봇, μ• ν”Œ 봇, λ§ˆμ΄ν¬λ‘œμ†Œν”„νŠΈ 봇 λ“±)인지λ₯Ό ν™•μΈν•˜λŠ” μž‘μ—…μ΄ ν•„μš”ν–ˆμŠ΅λ‹ˆλ‹€. 그것도 λΉ λ₯΄κ²Œ..! :horse_racing: μ²˜λ¦¬ν•΄μ•Όν•˜λŠ” μƒν™©μž…λ‹ˆλ‹€. Good Bot인지λ₯Ό κ²€μ¦ν•˜λŠ” μž‘μ—…μ€ 생각보닀 μ‹¬ν”Œν•œλ°μš”, ν•΄λ‹Ή 아이피 μ£Όμ†Œμ— λŒ€ν•΄ reverse DNS lookup을 ν•΄μ£Όλ©΄ λ©λ‹ˆλ‹€. 일반적으둜 잘 μ•Œλ €μ Έ μžˆλŠ” 봇듀은 DNS에 μžμ‹ μ˜ 정보λ₯Ό 등둝해두기 λ•Œλ¬Έμž…λ‹ˆλ‹€. κ΅¬κΈ€μ—μ„œ 이에 λŒ€ν•΄ μž‘μ„±ν•œ Verifying Googlebot κ°€μ΄λ“œκ°€ μžˆμ–΄μš”!...

August 20, 2020 Β· 2 min Β· 414 words Β· Denver

Go Concurrecny Patterns in Go Chap4 Queueing

golang 온라인 μŠ€ν„°λ”” λ•Œ μ œκ°€ μ€€λΉ„ν•œ νŒŒνŠΈμ— λŒ€ν•œ 자료λ₯Ό κ³΅μœ λ“œλ¦½λ‹ˆλ‹€. Queuing Sometimes it’s useful to begin accepting work for your pipeline even though the pipeline is not yet ready for more. This process is called queuing. All this means is that once your stage has completed some work, it stores it in a temporary location in memory so that other stages can retrive it later, and your stage doesn’t need to hold a reference to it....

August 11, 2020 Β· 6 min Β· 1210 words Β· Denver

Angel Hack Seoul 2020 Online Review

온라인으둜 개졜된 2020 엔저해컀톀 μ°Έμ—¬ ν›„κΈ° κ³΅μœ λ“œλ¦½λ‹ˆλ‹€. μ—”μ € 해컀톀 리뷰 1. 제좜물 저희 SpecialtyνŒ€μ΄ 일주일 λ™μ•ˆ 정말 κ³ μƒν•œ λ…Έλ ₯의 과싀듀을 κ³΅μœ λ“œλ¦½λ‹ˆλ‹€. :kissing_smiling_eyes: 보톡은 이런 ν›„κΈ° κΈ€ λ§ˆμ§€λ§‰μ— λ‚˜μ˜€λŠ” 게 μΌλ°˜μ μ΄μ§€λ§Œ, 이 글을 λ³΄μ‹œλŠ” 뢄듀이 κ°€μž₯ κΆκΈˆν•΄ ν• λ§Œν•œ λ‚΄μš©μ΄λΌ μƒκ°ν•˜μ—¬ μ„ κ³΅μœ  λ“œλ¦½λ‹ˆλ‹€. :laughing: Github: angelhack-seoul-2020-specialty ν‚€λ…ΈνŠΈ μ˜μƒ: 컀피박 업사이클링 ν”Œλž«νΌ 2. κ°„λž΅ μ†Œκ°œ κΈ°κ°„: 2020-07-13 μ›”μš”μΌλΆ€ν„° 2020-07-19 μΌμš”μΌκΉŒμ§€ 주제: μ°Έμ—¬ν•œ 5개의 μŠ€ν°μ„œ(컀먼컴퓨터, 패슀트캠퍼슀, ν…Œμ΄λΈ”λ§€λ‹ˆμ €, μš°μ•„ν•œν˜•μ œλ“€, μ½”λ“œμŠ€ν…Œμ΄μΈ )κ°€ μ œμ•ˆν•œ λ„μ „κ³Όμ œλ“€ 쀑 선택 컀먼컴퓨터: Ainize(μ˜€ν”ˆμ†ŒμŠ€ ν”„λ‘œμ νŠΈ 배포 μ†”λ£¨μ…˜)λ₯Ό ν™œμš©ν•œ μ½”λ‘œλ‚˜ μ‹œλŒ€λ₯Ό ν—€μ³λ‚˜κ°ˆ 수 μžˆλŠ” λͺ¨λ“  λΆ„μ•Όμ˜ μ†”λ£¨μ…˜ 패슀트캠퍼슀: μ½”λ‘œλ‚˜μ™€ 같은 μž¬λ‚œ 격리, λ„μ„œ μ‚°κ°„ κ±°μ£Ό λ“± λΆˆκ°€ν”Όν•œ 원격 μƒν™©μ—μ„œλ„ ν•™μŠ΅ μ˜μ§€ 뢀여와 μ™„μ£Όμœ¨μ„ λ†’μ΄λŠ” ꡐ윑/ν•™μŠ΅ μ†”λ£¨μ…˜ ν…Œμ΄λΈ”λ§€λ‹ˆμ €: μ½”λ‘œλ‚˜λ‘œ 인해 어렀움을 κ²ͺλŠ” μ†Œμƒκ³΅μΈμ„ λ•λŠ” μ†”λ£¨μ…˜μ„ ν†΅ν•œ μ•ˆμ •μ μ΄κ³  지속 κ°€λŠ₯ν•œ λ„μ‹œ :white_check_mark: μš°μ•„ν•œν˜•μ œλ“€: 지ꡬλ₯Ό μœ„ν•œ μ±…μž„κ°€ μžˆλŠ” μ†ŒλΉ„μ™€ 생산을 μœ„ν•œ μ†”λ£¨μ…˜ (λ„€, κ·Έλ ‡μŠ΅λ‹ˆλ‹€....

July 22, 2020 Β· 4 min Β· 720 words Β· Denver

Let's get into CoAP packets

ν”„λ‘œκ·Έλž¨μ΄ CoAP ν”„λ‘œν† μ½œμ„ 정말 μ§€μ›ν•˜λŠ”μ§€λ₯Ό νŒ¨ν‚·μ„ 톡해 직접 확인할 수 μžˆλŠ” 방법을 κ³΅μœ λ“œλ¦½λ‹ˆλ‹€. CoAP(The Constrained Application Protocol) μ΅œκ·Όμ— κΈ°κΈ°κ°„ 톡신에 λŒ€ν•΄ λ¦¬μ„œμΉ˜λ₯Ό ν•˜λ˜ 쀑 CoAP ν”„λ‘œν† μ½œμ— λŒ€ν•΄ μ•Œκ²Œ λ˜μ—ˆμŠ΅λ‹ˆλ‹€. CoAPλŠ” μ„±λŠ₯이 맀우 μž‘μ€ κΈ°κΈ°λ“€ 사이에 톡신을 μ£Όκ³  받을 λ•Œ, μ•„μ£Ό 적은 νŽ˜μ΄λ‘œλ“œλ‘œ λΉ λ₯΄κ³  μ •ν™•ν•˜κ²Œ 톡신을 ν•˜κΈ° μœ„ν•œ ν”„λ‘œν† μ½œμž…λ‹ˆλ‹€. (μžμ„Έν•œ μŠ€νŽ™μ€ ν•΄λ‹Ή 링크λ₯Ό μ°Έμ‘°ν•΄μ£Όμ„Έμš” :slightly_smiling_face:) ν•΄λ‹Ή ν”„λ‘œν† μ½œμ΄ μ–΄λ–»κ²Œ λ™μž‘ν•˜λŠ”μ§€λŠ” μŠ€νŽ™ λ¬Έμ„œλ₯Ό 톡해 확인할 수 μžˆμ—ˆλŠ”λ°μš”, μ‹€μ œλ‘œ λ™μž‘μ„ μ‹œμΌœλ³΄λ©΄μ„œ μ‚΄νŽ΄λ³΄λ €λ©΄ ν•΄λ‹Ή ν”„λ‘œν† μ½œμ˜ κ΅¬ν˜„μ²΄κ°€ ν•„μš”ν•˜κΈ° λ§ˆλ ¨μž…λ‹ˆλ‹€....

June 28, 2020 Β· 3 min Β· 611 words Β· Denver