만들고 부수며 배웁니다.https://www.brainbackdoor.com/https://www.brainbackdoor.com/posts/springcamp-2026/https://www.brainbackdoor.com/posts/springcamp-2026/요새 여러 언어, 프레임워크를 사용하다보니, 스프링 주제로 생각하는 시간을 가져보고 싶어 Spring Camp 2026를 신청했다.Tue, 16 Jun 2026 06:30:50 GMThttps://www.brainbackdoor.com/posts/1ac90d37-083f-8066-a151-e89a5a47a46b/https://www.brainbackdoor.com/posts/1ac90d37-083f-8066-a151-e89a5a47a46b/작년 말 겨울방학을 맞아, 봉진님이 책 선물을 하셨다.Mon, 10 Mar 2025 00:00:00 GMThttps://www.brainbackdoor.com/posts/2024-retrospect/https://www.brainbackdoor.com/posts/2024-retrospect/그란데클립에 온 지 2개월이 지났다.Sun, 29 Dec 2024 00:00:00 GMThttps://www.brainbackdoor.com/posts/11690d37-083f-80a9-b30b-c5def37b8e4f/https://www.brainbackdoor.com/posts/11690d37-083f-80a9-b30b-c5def37b8e4f/우아한형제들을 떠난다.Mon, 07 Oct 2024 00:00:00 GMThttps://www.brainbackdoor.com/posts/ae92f407-2d97-4dbe-99b1-3b972ca8d4a7/https://www.brainbackdoor.com/posts/ae92f407-2d97-4dbe-99b1-3b972ca8d4a7/삶에도 변곡점이 있다.Sun, 07 Jan 2024 00:00:00 GMThttps://www.brainbackdoor.com/posts/b065c018-114e-4897-9a53-98115cd9b382/https://www.brainbackdoor.com/posts/b065c018-114e-4897-9a53-98115cd9b382/VPC, Subnet, Route Table, Security Group 등 망 구성은 앞선 강의 및 미션을 통해 학습한 지식을 바탕으로 직접 진행해보세요!Mon, 18 Dec 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/1ca5dd49-2787-4f09-b88b-8e5881aa0b15/https://www.brainbackdoor.com/posts/1ca5dd49-2787-4f09-b88b-8e5881aa0b15/Collector로 사용할 EC2 생성 후, 위의 명령어로 collector, web, hbase 등을 구성합니다.Sat, 02 Dec 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/6660b3f1-de92-4053-b3e0-08a84ea34432/https://www.brainbackdoor.com/posts/6660b3f1-de92-4053-b3e0-08a84ea34432/IAM role로 CloudWatchAgentServerPolicy 권한을 가진 역할을 생성해두고 시작합니다.Tue, 28 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/ad9d2017-f854-4a97-bddb-6a8981dc14c1/https://www.brainbackdoor.com/posts/ad9d2017-f854-4a97-bddb-6a8981dc14c1/서비스를 배포하기에 앞서 예상되는 상황을 테스트하여, 현재 시스템이 어느 정도의 부하를 견딜 수 있는지 확인하고.Fri, 10 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/1101a2b0-66bf-4b74-a95d-c2c98492093b/https://www.brainbackdoor.com/posts/1101a2b0-66bf-4b74-a95d-c2c98492093b/MySQL Replication 동작 방식 등 상세한 내용은 포스팅을 참고바랍니다.Thu, 09 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/6ad28373-149c-4d45-b835-8dfb853db638/https://www.brainbackdoor.com/posts/6ad28373-149c-4d45-b835-8dfb853db638/조회 성능 개선하기 미션을 진행하는데, 최소한으로 필요한 SQL 역량이 있는지를 확인해보세요 🙏🏻Thu, 09 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/7b4ef2a7-32e3-4b8e-b243-ec88a5e38708/https://www.brainbackdoor.com/posts/7b4ef2a7-32e3-4b8e-b243-ec88a5e38708/이 포스팅에서 SQL 쿼리를 튜닝하는 방법을 모두 다룰 수는 없습니다.Thu, 09 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/8e230e0d-431c-4ffe-becd-c60c1bea4615/https://www.brainbackdoor.com/posts/8e230e0d-431c-4ffe-becd-c60c1bea4615/HTTP Cache, gzip, Servlet, Thread 등의 개념을 학습 테스트를 통해 실습해봅니다.Thu, 09 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/9178ac06-ae33-4a96-a4cd-49c96ea28351/https://www.brainbackdoor.com/posts/9178ac06-ae33-4a96-a4cd-49c96ea28351/이 포스팅은 컨퍼런스 신청 플랫폼 테스트 코드를 작성할 때 세웠던 기준을 다루고 있어요.Thu, 09 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/c78ba22a-b64d-4016-9f09-c9de5f94e612/https://www.brainbackdoor.com/posts/c78ba22a-b64d-4016-9f09-c9de5f94e612/아래 문서 및 영상을 참고하여 자신의 프로젝트를 대상으로 이벤트스토밍 해보세요.Thu, 09 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/f67aa01c-218b-4ada-8dcd-82ab9cce4b9c/https://www.brainbackdoor.com/posts/f67aa01c-218b-4ada-8dcd-82ab9cce4b9c/컨벤션 문서를 업데이트 중입니다.Thu, 09 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/b47f2941-5949-4368-890b-ca7825b419b9/https://www.brainbackdoor.com/posts/b47f2941-5949-4368-890b-ca7825b419b9/리눅스가 처음인 분들을 대상으로 작성한 포스팅입니다.Wed, 08 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/f78dedef-13f8-4ac2-b216-51600ce03d07/https://www.brainbackdoor.com/posts/f78dedef-13f8-4ac2-b216-51600ce03d07/Tomcat이 무엇인지, WAS를 진단할 때 어떤 부분들을 확인해야 하는지 등은 강의를 통해 확인할 수 있어요.Wed, 08 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/6c414539-eeb5-402c-a18e-3eb02209e487/https://www.brainbackdoor.com/posts/6c414539-eeb5-402c-a18e-3eb02209e487/이 포스팅은 도커 컨테이너가 무엇인지, 명령어를 직접 입력해가며 살펴보는데 초점을 두고 있습니다.Tue, 07 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/9fcd92ce-d741-48a9-a0f5-4951c8400bd7/https://www.brainbackdoor.com/posts/9fcd92ce-d741-48a9-a0f5-4951c8400bd7/이 포스팅은 도커 컨테이너를 처음 접하는 분들을 대상으로 작성하였습니다.Tue, 07 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/179d8510-f605-4420-9eaa-80410079e077/https://www.brainbackdoor.com/posts/179d8510-f605-4420-9eaa-80410079e077/강의를 먼저 듣고 실습을 진행하여도 좋고, 실습을 일단 해보고 강의를 수강하셔도 좋습니다.Sun, 05 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/c9941281-9ebf-4a58-b295-3638c22117b1/https://www.brainbackdoor.com/posts/c9941281-9ebf-4a58-b295-3638c22117b1/본 과정은 현업과 비슷하게, 인프라를 구성해가며 필요한 지식을 학습하고 적용하는 단계로 진행합니다.Sun, 05 Nov 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/0798ec80-70e7-441d-a238-2dc640122bce/https://www.brainbackdoor.com/posts/0798ec80-70e7-441d-a238-2dc640122bce/컨테이너를 학습하고 3 tier로 운영환경을 구성해봅니다.Sat, 21 Oct 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/0af0d94d-8533-4416-b444-d5850f745a91/https://www.brainbackdoor.com/posts/0af0d94d-8533-4416-b444-d5850f745a91/서버를 구성해보며 리눅스를 경험해봅니다.Sat, 21 Oct 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/80dbc9d7-ba32-4220-9b39-b536172264f2/https://www.brainbackdoor.com/posts/80dbc9d7-ba32-4220-9b39-b536172264f2/webpagetest, pagespeed 등으로 테스트하여, 인터넷 구간에서 성능에 영향을 주는 요소를 이해해봅니다.Sat, 21 Oct 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/dfe2e77f-066e-46e9-a575-ed1e65157321/https://www.brainbackdoor.com/posts/dfe2e77f-066e-46e9-a575-ed1e65157321/깃헙 저장소를 활용하여 미션을 진행할 수 있어요.Sat, 21 Oct 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/1824fb4e-415b-4a61-8ec4-76e5102ee32f/https://www.brainbackdoor.com/posts/1824fb4e-415b-4a61-8ec4-76e5102ee32f/깃헙 저장소를 활용하여 미션을 진행할 수 있어요.Fri, 20 Oct 2023 00:00:00 GMThttps://www.brainbackdoor.com/posts/456db3cc-c4e1-4028-a820-45eca7a00002/https://www.brainbackdoor.com/posts/456db3cc-c4e1-4028-a820-45eca7a00002/🎬 10주 영상 📷 인스타그램Mon, 05 Jun 2023 09:34:16 GMThttps://www.brainbackdoor.com/posts/510a4baf-f32e-4be7-94dd-b69b39b67963/https://www.brainbackdoor.com/posts/510a4baf-f32e-4be7-94dd-b69b39b67963/Fri, 25 Nov 2022 00:00:00 GMThttps://www.brainbackdoor.com/posts/182f7833-51f6-4a0a-9332-dee1745eb629/https://www.brainbackdoor.com/posts/182f7833-51f6-4a0a-9332-dee1745eb629/(발육의 개인차가 나타나므로, 평균치에 지나치게 신경 쓰지 않아도 되어요)Thu, 24 Nov 2022 00:00:00 GMThttps://www.brainbackdoor.com/posts/b0fcd797-d327-4708-835b-e64079b05d39/https://www.brainbackdoor.com/posts/b0fcd797-d327-4708-835b-e64079b05d39/Wed, 23 Nov 2022 20:50:00 GMThttps://www.brainbackdoor.com/posts/d913f5b7-bfb1-4294-8ea0-59ca4d849c22/https://www.brainbackdoor.com/posts/d913f5b7-bfb1-4294-8ea0-59ca4d849c22/Wed, 23 Nov 2022 00:00:00 GMThttps://www.brainbackdoor.com/posts/c2b1634c-9248-4dc9-804e-bea085b3f4b4/https://www.brainbackdoor.com/posts/c2b1634c-9248-4dc9-804e-bea085b3f4b4/Tue, 22 Nov 2022 00:00:00 GMThttps://www.brainbackdoor.com/posts/0e0e57f6-8286-4aac-b32e-c9b28e5e6830/https://www.brainbackdoor.com/posts/0e0e57f6-8286-4aac-b32e-c9b28e5e6830/Sun, 06 Nov 2022 00:00:00 GMThttps://www.brainbackdoor.com/posts/100baf78-adbc-4c10-8ad0-f497437a1984/https://www.brainbackdoor.com/posts/100baf78-adbc-4c10-8ad0-f497437a1984/Sun, 06 Nov 2022 00:00:00 GMThttps://www.brainbackdoor.com/posts/9a393b4d-ea51-45d2-8823-50eb9e522ff9/https://www.brainbackdoor.com/posts/9a393b4d-ea51-45d2-8823-50eb9e522ff9/Sat, 05 Nov 2022 15:21:00 GMThttps://www.brainbackdoor.com/posts/0a7765e4-92de-4182-bc0e-0d55dfb13ab0/https://www.brainbackdoor.com/posts/0a7765e4-92de-4182-bc0e-0d55dfb13ab0/제가 알게된 것들을 정리한 자료입니다.Wed, 02 Nov 2022 02:41:32 GMThttps://www.brainbackdoor.com/posts/142925bd-2a5a-4813-8d6b-c64ffc040535/https://www.brainbackdoor.com/posts/142925bd-2a5a-4813-8d6b-c64ffc040535/Sat, 19 Feb 2022 00:00:00 GMThttps://www.brainbackdoor.com/posts/b36fad77-048a-4657-b8f9-21c73b6ff257/https://www.brainbackdoor.com/posts/b36fad77-048a-4657-b8f9-21c73b6ff257/Sat, 19 Feb 2022 00:00:00 GMThttps://www.brainbackdoor.com/posts/623ea5b7-3623-4843-9926-8b29e76b9b71/https://www.brainbackdoor.com/posts/623ea5b7-3623-4843-9926-8b29e76b9b71/정말 만남은 쉽고 이별은 어렵다.Fri, 31 Dec 2021 00:00:00 GMThttps://www.brainbackdoor.com/posts/833771f4-d722-4c80-8967-2f0024885bff/https://www.brainbackdoor.com/posts/833771f4-d722-4c80-8967-2f0024885bff/1) Apache Spark는 데이터 처리를 위한 범용 프레임워크이다.Fri, 19 Nov 2021 00:00:00 GMThttps://www.brainbackdoor.com/posts/c9edaff4-1f8b-48aa-a092-730b932155fb/https://www.brainbackdoor.com/posts/c9edaff4-1f8b-48aa-a092-730b932155fb/Spark는 데이터를 테이블 형태로 다룰 수 있도록 API를 제공한다.Thu, 18 Nov 2021 21:14:00 GMThttps://www.brainbackdoor.com/posts/0f9f8b63-17c1-4475-bfa8-75f0ef0ebcad/https://www.brainbackdoor.com/posts/0f9f8b63-17c1-4475-bfa8-75f0ef0ebcad/이제는 멈춰버린 블로그.Mon, 14 Jun 2021 00:00:00 GMThttps://www.brainbackdoor.com/posts/a1094dc5-8f5c-4725-be7c-8247fc273c44/https://www.brainbackdoor.com/posts/a1094dc5-8f5c-4725-be7c-8247fc273c44/구글 스프레드 시트 버전도 있어요 😄Fri, 07 May 2021 00:00:00 GMThttps://www.brainbackdoor.com/posts/d1b5e57f-715e-433e-a5bb-a3ca8bd1f216/https://www.brainbackdoor.com/posts/d1b5e57f-715e-433e-a5bb-a3ca8bd1f216/결혼은 사랑하는 사람과 함께 살아가겠다는 약속이다.Wed, 05 May 2021 13:23:00 GMThttps://www.brainbackdoor.com/posts/8c882a84-05d4-4058-8ebb-40b5dafe433f/https://www.brainbackdoor.com/posts/8c882a84-05d4-4058-8ebb-40b5dafe433f/2020년은 안식년이었다.Mon, 04 Jan 2021 00:00:00 GMThttps://www.brainbackdoor.com/posts/5d9c4e59-60bf-41d0-9d2a-b8125636a9c3/https://www.brainbackdoor.com/posts/5d9c4e59-60bf-41d0-9d2a-b8125636a9c3/이번 상반기 회고는 하지 말까하다가 그래도 기록으로 남겨두는 것이 좋을 거 같아 작성해본다.Sun, 05 Jul 2020 00:00:00 GMThttps://www.brainbackdoor.com/posts/95248237-c6a4-4489-a51e-6c548c0c103c/https://www.brainbackdoor.com/posts/95248237-c6a4-4489-a51e-6c548c0c103c/NEXTSTEP TDD 과정 코드리뷰를 하다보면, 일급컬렉션 피드백에 이어, 많이 하는 피드백이 불변객체를 작성하라는 것이다.Sun, 12 Apr 2020 00:00:00 GMThttps://www.brainbackdoor.com/posts/1c3f7881-71c5-4855-85d1-a4c7e895a66b/https://www.brainbackdoor.com/posts/1c3f7881-71c5-4855-85d1-a4c7e895a66b/TDD, 클린코드 코드리뷰를 하다보면 '원시값과 문자열을 포장하라', '일급콜렉션을 쓴다'와 같은 피드백을 주곤한다.Mon, 30 Mar 2020 00:00:00 GMThttps://www.brainbackdoor.com/posts/14b691d7-7fd7-4e95-8787-49e06111755f/https://www.brainbackdoor.com/posts/14b691d7-7fd7-4e95-8787-49e06111755f/ATDD 강의 코드리뷰 중 이런 질문을 받았다.Wed, 12 Feb 2020 00:00:00 GMThttps://www.brainbackdoor.com/posts/04555c7c-eb81-4283-905e-b8f9c3f8b75c/https://www.brainbackdoor.com/posts/04555c7c-eb81-4283-905e-b8f9c3f8b75c/2019년을 반추해보면 완전하게 살아있지 않은 상태(미생)로 존재했던 거 같다.Thu, 02 Jan 2020 00:00:00 GMThttps://www.brainbackdoor.com/posts/beae0ed2-e020-4681-abac-fdb9e5f12c5f/https://www.brainbackdoor.com/posts/beae0ed2-e020-4681-abac-fdb9e5f12c5f/이번 포스팅에서는 HTTP 완벽가이드, 네트워킹과 웹 성능 최적화 기법, 리눅스 커널 이야기, 와이어샤크를 활용한 실전 패킷 분석 책을 활용하였습니다.Mon, 16 Sep 2019 00:00:00 GMThttps://www.brainbackdoor.com/posts/02773af9-5c93-43b5-89b4-bbab94536195/https://www.brainbackdoor.com/posts/02773af9-5c93-43b5-89b4-bbab94536195/이번 포스팅에서는 HTTP 완벽가이드, 네트워킹과 웹 성능 최적화 기법, 리눅스 커널 이야기, 와이어샤크를 활용한 실전 패킷 분석 책을 활용하였습니다.Sun, 25 Aug 2019 00:00:00 GMThttps://www.brainbackdoor.com/posts/tcp-error-recovery/https://www.brainbackdoor.com/posts/tcp-error-recovery/이번 포스팅에서는 HTTP 완벽가이드, 네트워킹과 웹 성능 최적화 기법, 리눅스 커널 이야기, 와이어샤크를 활용한 실전 패킷 분석 책을 활용하였습니다.Sun, 25 Aug 2019 00:00:00 GMThttps://www.brainbackdoor.com/posts/32fc3a46-6aed-4c92-9896-c40abd86ef06/https://www.brainbackdoor.com/posts/32fc3a46-6aed-4c92-9896-c40abd86ef06/여름이 왔다.Sun, 07 Jul 2019 00:00:00 GMThttps://www.brainbackdoor.com/posts/d6132043-4fd1-4960-974c-26946e0224ce/https://www.brainbackdoor.com/posts/d6132043-4fd1-4960-974c-26946e0224ce/많은 개발자들이 좋은 개발 문화를 원한다.Sun, 21 Apr 2019 00:00:00 GMThttps://www.brainbackdoor.com/posts/95400228-c9fb-4397-ac45-281f2a6c7446/https://www.brainbackdoor.com/posts/95400228-c9fb-4397-ac45-281f2a6c7446/병목구간(bottleneck)이란, 인터넷을 이용하는 Client와 인터넷 Server 사이에 존재하는 네트워크 구간 중 가장 bandwidth가 작은 구간을 말한다.Sun, 24 Feb 2019 00:00:00 GMThttps://www.brainbackdoor.com/posts/c6550c6d-0773-43bc-84a9-311a3de97b00/https://www.brainbackdoor.com/posts/c6550c6d-0773-43bc-84a9-311a3de97b00/'비효율적이었다.'Mon, 17 Dec 2018 00:00:00 GMT