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  • MySQL ์ฟผ๋ฆฌ ์บ์‹œ ์‚ฌ์šฉํ•˜๊ธฐ

    ํฐ ์„œ๋น„์Šค๋ฅผ ์šด์˜ํ•˜๋Š” ์„œ๋ฒ„๊ฐ€ ์•„๋‹Œ๋ฐ๋„ CPU ์ ์œ ์œจ์ด ๋†’์•„ ํ™•์ธ์„ ํ–ˆ๋‹ค.์›์ธ์€ MySQL ์—์„œ ๊ฒฐ๊ณผ๋ฅผ ๊ฐ€์ ธ์˜ค๋Š”๋ฐ 1์ดˆ๊ฐ€ ๊ฑธ๋ฆฌ๋Š” ์ฟผ๋ฆฌ๋ฅผ ์ž์ฃผ ์•ก์„ธ์Šคํ•˜๋ฉด์„œ ๋ฐœ์ƒํ•˜๋Š” ๋ถ€ํ•˜์˜€๋‹ค. ์„œ๋น„์Šค ์ดˆ๋ฐ˜์—๋Š” ๋ฐ์ดํ„ฐ์˜ ์–‘์ด ์–ผ๋งˆ ์—†๊ธฐ ๋•Œ ...

  • ํผ์˜ ์š”์†Œ์— ํฌ์ปค์Šค ์ฃผ๊ธฐ - JavaScript

    ํผ ์ž…๋ ฅ์—์„œ JavaScript ๋กœ ํฌ์ปค์Šค๋ฅผ ์ž„์˜๋กœ ์กฐ์ •ํ•ด์•ผ ํ•  ํ•„์š”๊ฐ€ ์ข…์ข… ์žˆ๋Š”๋ฐ, ์˜ˆ์ƒ์น˜ ๋ชปํ•œ ์ƒํ™ฉ์ด ๋ฐœ์ƒํ•  ์ˆ˜ ์žˆ์–ด ๊ธฐ๋กํ•ด ๋‘”๋‹ค.ํผ์˜ ์ฒซ๋ฒˆ์งธ ์š”์†Œ์— ํฌ์ปค์Šค ์ฃผ๊ธฐ<form id="myform" action= ...

  • ๊นŠ์ด ์žˆ๋Š” ๋Œ“๊ธ€ ์‹œ์Šคํ…œ

    ์ธํ„ฐ๋„ท ์„œ๋น„์Šค๋ฅผ ์ด์šฉํ•˜๋ฉด์„œ ๋ˆ„๊ตฌ๋‚˜ ํ•œ๋ฒˆ์ฏค ๋Œ“๊ธ€ ์‹œ์Šคํ…œ์„ ์ด์šฉํ•ด ๋ณธ ์ ์ด ์žˆ์„ ๊ฒƒ์ด๋‹ค. ์‚ฌ์šฉ๋ฒ•์ด ๋„ˆ๋ฌด๋‚˜ ๊ฐ„๋‹จํ•˜์—ฌ ์‰ฝ๊ฒŒ ์ œ์ž‘ํ•  ์ˆ˜ ์žˆ์„ ๊ฒƒ ๊ฐ™์ง€๋งŒ, ์‹ค์ œ๋กœ ๋งŒ๋“ค์–ด๋ณด๋ฉด ๊ทธ๋ ‡๊ฒŒ ๋งŒ๋งŒํ•œ ์‹œ์Šคํ…œ์ด ์•„๋‹ˆ๋ž€ ๊ฒƒ์„ ์•Œ๊ฒŒ ๋œ๋‹ค.์—ฌ๊ธฐ์„œ ...

  • Cerbot ๊ฐฑ์‹  ์—๋Ÿฌ

    Certbot ์œผ๋กœ SSL ์„ ๊ฐฑ์‹ ํ•˜๋ ค๋Š”๋ฐ ์ด์ „๊ณผ ๊ฐ™์€ ๋ฐฉ๋ฒ•์œผ๋กœ ๋ช…๋ น์„ ์‹คํ–‰ํ•˜์ž ์‹คํŒจ๋ฅผ ๋ฐ˜๋ณตํ•˜๋Š” ๋ฌธ์ œ๊ฐ€ ์ƒ๊ฒผ๋‹ค. ์ „์—๋Š” ๋ถ„๋ช…ํžˆ ๊ฐ™์€ ๋ฐฉ๋ฒ•์œผ๋กœ ๊ฐฑ์‹ ์„ ํ–ˆ๋Š”๋ฐโ€ฆ? ํ•˜๊ณ  ์ฐพ์•„๋ณด๋‹ˆ ๋น„์Šทํ•œ ํ˜„์ƒ์ด ๊ฝค ์žˆ๋Š”์ง€, ์—ฌ๋Ÿฌ ์‚ฌ๋žŒ๋“ค์ด ...

  • How to remove passphrase from a private key

    Sometimes, I feel to remove the passphrase from a key file.$ ssh-keygen -p -f /the/path/of/a/key Enter old passphrase En ...

  • DNS Cache Flush

    MacOS# Above Sierra $ sudo killall -HUP mDNSResponder; sudo killall mDNSResponderHelper; sudo dscacheutil -flushcache # ...

  • Raspberry Pi ๋žจ๋“œ๋ผ์ด๋ธŒ ๋งŒ๋“ค๊ธฐ

    ๋žจ๋“œ๋ผ์ด๋ธŒ Ram Drive - https://publicdomainvectors.org/en/free-clipart/RAM-memory-chip-vector-image/13456.html๋ผ์ฆˆ๋ฒ ๋ฆฌ ํŒŒ์ด์— ๋žจ๋“œ๋ผ์ด๋ธŒ๋ฅผ ...

  • PHP Flush

    PHP FlushingPHP ์—์„œ Flush ๋ฅผ ์“ฐ๋Š” ์ด์œ ๋Š” ์—ฌ๋Ÿฌ๊ฐ€์ง€๊ฐ€ ์žˆ๊ฒ ์ง€๋งŒ, ๊ฐœ์ธ์ ์œผ๋กœ ๋ธŒ๋ผ์šฐ์ €์—์„œ Timeout ์ด ๋‚˜์ง€ ์•Š๊ฒŒํ•˜๊ธฐ ์œ„ํ•œ ๋ชฉ์ ์œผ๋กœ ์ž์ฃผ ์“ด๋‹ค. ์„œ๋ฒ„์—์„œ๋Š” ๊ณ„์‚ฐ์„ ํ•˜๊ณ  ์žˆ๋Š”๋ฐ ๋ธŒ๋ผ์šฐ์ €์— ์•„๋ฌด๊ฒƒ๋„ ...

  • Linux systemctl

    systemctl usage$ sudo systemctl list-units $ sudo systemctl list-units --all $ sudo systemctl list-units --type=service ...

  • KeDei 3.5โ€ HDMI display for Raspberry Pi

    ๋„คํŠธ์›Œํฌ ์„ค์ •์šฉ์œผ๋กœ ๋ฏธ๋‹ˆ ๋””์Šคํ”Œ๋ ˆ์ด๋ฅผ ๊ตฌ์ž…ํ–ˆ๋Š”๋ฐ, ์—ฐ๊ฒฐํ•˜๋ฉด ๊ธ€์ž๊ฐ€ ๋„ˆ๋ฌด ์ž‘๊ฒŒ ๋‚˜์™€(810x540) ํ™”๋ฉด ์„ค์ •์„ ๋ณ€๊ฒฝํ•ด๋ณด์•˜๋‹ค.KeDei 3.5โ€ HDMI displayconfig.txt setting hdmi_forc ...

  • [Raspberry Pi] Wifi Setting And Enable SSH with Command

    Wifi SettingSearch Wifi ESSIDs.$ sudo iwlist wlan0 scan | grep ESS ESSID:"AirPort_what_you_want_to_connect" ESSI ...

  • Shrink Trackpad - Mac App

    shrink_trackpad์‹ ํ˜• ๋งฅ์—์„œ ํŠธ๋ž™ํŒจ๋“œ๊ฐ€ ์ปค์„œ ๊ฑธ๋ฆฌ์  ๊ฑฐ๋ฆด๋•Œโ€ฆhttps://github.com/cocoahuke/shrink_trackpadhttps://apple.stackexchange.com/quest ...

  • sublime-sync

    sublime-syncํ”„๋กœ์ ํŠธ ํด๋”๋ฅผ ๊ฐ์‹œํ•˜๋ฉด์„œ ํŒŒ์ผ์ด ๋ณ€๊ฒฝ๋˜์—ˆ์„๋•Œ ์„œ๋ธŒ๋ผ์ž„์˜ SFTP ์„ค์ •์„ ์ด์šฉํ•˜์—ฌ ์—…๋กœ๋“œ ํ•ด์ค€๋‹ค.GitHub ํ”„๋กœ์ ํŠธhttps://github.com/RickGroenewegen/sublime- ...

  • vi ์—๋””ํ„ฐ ์น˜ํ™˜ํ•˜๊ธฐ

    vi ๋กœ ๋„๋ฉ”์ธ ์„ค์ • ์ž‘์—…๋“ฑ์„ ํ•  ๋•Œ ๋””๋ ‰ํ† ๋ฆฌ ์ด๋ฆ„๋งŒ ๋ฐ”๋€Œ๋Š”๋ฐ ์ง์ ‘ ์ž…๋ ฅํ•˜๊ธฐ๊ฐ€ ์Šฌ์Šฌ ๊ท€์ฐฎ์•„ ์งˆ๋•Œ ์‚ฌ์šฉํ•œ๋‹ค.:%s/search_string/replacement_string/g ์˜ˆ์ œ$ vi aaa bbb ccc a ...

  • MySQL Select ํ•ด์„œ Insert ํ•˜๊ธฐ

    ํ…Œ์ด๋ธ”์— ๊ฐ’์„ ๊ทธ๋ƒฅ ์ž…๋ ฅํ•˜๋Š” ๋ฐฉ๋ฒ•๊ณผ SELECT ํ•ด์„œ ๊ทธ ๊ฐ’์„ INSERT ํ•˜๋Š” ๋ฐฉ๋ฒ•์ด ๋น„์Šทํ•˜๋ฉด์„œ๋„ ๋‹ฌ๋ผ ๋งค๋ฒˆ ํ—ท๊ฐˆ๋ ค ์ •๋ฆฌ.SELECT ํ•ด์„œ INSERT ํ•˜๊ธฐINSERT INTO target_table_nam ...