{"id":2575,"date":"2020-10-15T15:27:15","date_gmt":"2020-10-15T06:27:15","guid":{"rendered":"http:\/\/43.203.250.216\/?p=2575"},"modified":"2025-10-01T16:26:10","modified_gmt":"2025-10-01T07:26:10","slug":"lightshail-ubuntu-%eb%b0%b0%ed%8f%ac%ed%8c%90-%ec%97%85%ea%b7%b8%eb%a0%88%ec%9d%b4%eb%93%9c-%ed%9b%84-ssh-%ec%a0%91%ec%86%8d%ec%9d%b4-%ec%95%88%eb%90%9c%eb%8b%a4","status":"publish","type":"post","link":"https:\/\/litcoder.com\/?p=2575","title":{"rendered":"Lightshail Ubuntu \ubc30\ud3ec\ud310 \uc5c5\uadf8\ub808\uc774\ub4dc \ud6c4 ssh \uc811\uc18d\uc774 \uc548\ub41c\ub2e4."},"content":{"rendered":"\n
\n

\ub9dd\ud588\ub2e4! Litghtsail\uc758 Ubuntu \ubc30\ud3ec\ud310\uc774 \ub108\ubb34 \uc624\ub798\uc804 \uac83\uc774\ub77c \ucf58\uc194\uc5d0 \uc811\uadfc\ud574\uc11c \uc870\uc2ec\uc2a4\ub7fd\uac8c screen session\ub3c4 \uc0c8\ub85c \ub9cc\ub4e4\uc5b4 \uac00\uba74\uc11c \uc5c5\uadf8\ub808\uc774\ub4dc\ub97c \ud588\ub294\ub370 \ub05d\ub098\uace0 \ub098\ub2c8 SSH\uac00 \uc548\ub41c\ub2e4. \uc544\ub9c8\ub3c4 \uc911\uac04\uc5d0 SSH\uad00\ub828 \ud658\uacbd\uc124\uc815\uc744 \ud30c\uc77c\uc744 \ubcc0\uacbd\ud560 \uac83\uc778\uc9c0 \ubb3b\ub294 \uc120\ud0dd\uba54\ub274\uac00 \ub098\uc654\ub294\ub370, \ud604\uc7ac \uc124\uc815\uc744 \uadf8\ub0e5 \uc4f0\uaca0\ub2e4\uace0 \ud588\ub358\uac8c \ubb38\uc81c\uc778\uac83 \uac19\ub2e4. \ub2e4\ud589\ud788 blogging service\ub294 \uc798\ub3cc\uc544 \uac00\uace0 \uc788\uc9c0\ub9cc SSH\uac00 \uc548\ub418\uba74 \uc11c\ubc84\uad00\ub9ac\ub97c \ud560 \ubc29\ubc95\uc774 \uc5c6\ub294\ub370…<\/p>\n<\/blockquote>\n\n\n\n

Workaound<\/h1>\n\n\n\n

\ub2e4\ud589\ud788 \uc138\uc0c1\uc740 \uc0dd\uac01\ubcf4\ub2e4 \ub113\uace0 \uc778\uac04\uc740 \uac19\uc740 \uc2e4\uc218\ub97c \ubc18\ubcf5\ud558\uae30\uc5d0 \uc774\uc804\uc5d0 \uac19\uc740 \uc2e4\uc218\ub97c \ud55c \uc0ac\ub78c\uc758 \ube44\uc2b7\ud55c \uacbd\ud5d8\uc744 \uc815\ubcf4\uc758 \ubc14\ub2e4\uc5d0\uc11c \ucc3e\uc744 \uc218 \uc788\uc5c8\ub2e4 (SSH stops working after upgrade to Ubuntu 18.04 on AWS Lightsail<\/a>). \ub300\ucda9 Ubuntu 18.04 LTS\ub85c \uc62c\ub77c\uac00\uba74\uc11c SSH \ud658\uacbd\uc124\uc815 \ud30c\uc77c\uc5d0 \ubcc0\uacbd\uc774 \uc788\uc5c8\ub294\ub370 \uba54\uc778\ud14c\uc774\ub108 \ubc84\uc804\uc744 \uc801\uc6a9\ud558\uc9c0 \uc54a\uc73c\uba74 \ubb38\uc81c\uac00 \ub418\ub294\uac00 \ubcf4\ub2e4. \uc774 \ud3ec\uc2a4\ud305\uc740 \uc704\uc758 \ub9c1\ud06c\uc5d0 \uc788\ub294 \ub0b4\uc6a9\uc744 \uae30\uc900\uc73c\ub85c \uc815\ub9ac\ud55c \uac83\uc774\ub2e4. (Lightsail \ud55c\uc815\uc774\uace0 EC2\ub97c \uc0ac\uc6a9\ud558\uace0 \uc788\ub2e4\uba74 \uc544\ub798\uc640 \uac19\uc774 \ubc88\uac70\ub85c\uc6b4 \uc791\uc5c5\uc744 \ud560 \ud544\uc694\uac00 \uc5c6\ub2e4\uace0 \ud55c\ub2e4)<\/p>\n\n\n\n

\uc21c\uc11c \uc694\uc57d<\/h2>\n\n\n\n
    \n
  1. SSH\uc811\uc18d\uc774 \uc548\ub418\ub294 instance\ub85c \ubd80\ud130 \uc2a4\ub0c5\uc0f7\uc744 \ud558\ub098 \ub9cc\ub4e0\ub2e4.<\/li>\n\n\n\n
  2. \uc2a4\ub0c5\uc0f7\uc758 \uc2dc\uc791 \uc2a4\ud06c\ub9bd\ud2b8\uc5d0 ssh \ud658\uacbd\uc124\uc815\uc744 \uc218\uc815\ud558\ub294 \uba85\ub839\uc5b4\ub97c \ub123\uace0 \uc0c8\ub85c\uc6b4 \uc778\uc2a4\ud134\uc2a4\ub97c \ub9cc\ub4e0\ub2e4.<\/li>\n\n\n\n
  3. \uc798 \ub418\uba74 \uc0c8\ub85c\uc6b4 \uc778\uc2a4\ud134\uc2a4\ub97c \uace0\uc815 IP\uc5d0 \uc5f0\uacb0\ud558\uace0 \uc774\uc804 \uc778\uc2a4\ud134\uc2a4\ub97c \uc9c0\uc6b4\ub2e4.<\/li>\n<\/ol>\n\n\n\n

    \uc2a4\ub0c5\uc0f7 \uc0dd\uc131<\/h2>\n\n\n\n

    SSH \uc811\uc18d\uc774 \uc548\ub418\ub294 \uc778\uc2a4\ud134\uc2a4\ub85c \ubd80\ud130 \uc2a4\ub0c5\uc0f7\uc744 \ud558\ub098 \ub9cc\ub4e0\ub2e4. \uad00\ub9ac -> \uc2a4\ub0c5\uc0f7 \uc218\ub3d9 \uc2a4\ub0c5\uc0f7 \uc544\ub798\uc758 ‘+ \uc2a4\ub0c5\uc0f7 \uc0dd\uc131’\uc744 \ud074\ub9ad.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    \uc0dd\uc131\uc774 \uc644\ub8cc\ub420 \ub54c\uae4c\uc9c0 \uc870\uae08 \uae30\ub2e4\ub838\ub2e4\uac00 \uc774 \uc2a4\ub0c5\uc0f7\uc73c\ub85c \ubd80\ud130 \uc0c8\ub85c\uc6b4 \uc778\uc2a4\ud134\uc2a4\ub97c \ud558\ub098 \ub9cc\ub4e0\ub2e4.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    \uc2dc\uc791 \uc2a4\ud06c\ub9bd\ud2b8\ub97c \ucd94\uac00\ud558\uace0 \uc778\uc2a4\ud134\uc2a4\ub97c \uc2e4\ud589<\/h2>\n\n\n\n

    \uc0c8 \uc778\uc2a4\ud134\uc2a4 \uc0dd\uc131 \uba54\ub274\uc5d0 \ubcf4\uba74 “\uc2dc\uc791 \uc2a4\ud06c\ub9bd\ud2b8”\ub97c \ub123\ub294 \uacf3\uc774 \uc788\ub294\ub370 \uc774\uacf3\uc744 \uc120\ud0dd\ud558\uace0 ssh config\ub97c \ubcc0\uacbd\ud574 \uc904 \ub2e4\uc74c\uc758 sed \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud55c\ub2e4.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n
    sudo sed -i 's\/^Ciphers .*\/Ciphers +aes256-cbc,aes192-cbc,aes128-cbc\/' \/etc\/ssh\/sshd_config\nsudo service sshd stop\nsudo service sshd start<\/pre>\n\n\n\n
    \uadf8\ub9ac\uace0 \ub098\uc11c \uc778\uc2a4\ud134\uc2a4\ub97c \uc2e4\ud589\ud558\uba74 \ucc98\uc74c\uc5d0\ub294 \uc5ec\uc804\ud788 SSH \uc811\uc18d\uc774 \ub418\uc9c0 \uc54a\ub294\ub370, \uaf64 \uc624\ub79c \uc2dc\uac04 (10~20\ubd84)\uc774 \uc9c0\ub098\uace0 \ub098\uc11c\uc57c \uac00\ub2a5\ud574 \uc9c4\ub2e4.<\/p>\n\n\n\n
    \uace0\uc815 IP \ubcc0\uacbd\uacfc \uc815\ub9ac<\/h2>\n\n\n\n
    \ub124\ud2b8\uc6cc\ud0b9 -> Static IP\uc5d0\uc11c \uace0\uc815 IP\ub97c \ubd84\ub9ac\ud558\uace0 \uc0c8\ub85c\uc6b4 \uc778\uc2a4\ud134\uc2a4\uc5d0 \uc0c8\ub85c \uc5f0\uacb0\ud574 \uc900\ub2e4.<\/p>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    \uc0c8\ub85c\uc6b4 \uc778\uc2a4\ud134\uc2a4\ub97c \uace0\uc815 IP\uc5d0 \ud560\ub2f9 \ud55c \ud6c4 \uae30\uc874 \uc11c\ubc84\ub97c \ub044\uace0 \ub3c4\uba54\uc778\uc5d0 \uc811\uc18d\ud574\uc11c \uc798 \ub3cc\uc544\uac00\ub294 \uc9c0 \ud655\uc778\ud55c \ud6c4 \uc2a4\ub0c5\uc0f7\uacfc \uae30\uc874 \uc778\uc2a4\ud134\uc2a4\ub97c \uc9c0\uc6cc\uc900\ub2e4. \uc2a4\ub0c5\uc0f7 \uc0dd\uc131 \uae30\ub2a5\uc740 \uc608\uc804\uc5d0 \ud55c \ubc88 \ubc31\uc5c5\uc6a9\uc73c\ub85c \uc88b\uaca0\ub2e4 \uc2f6\uc5b4\uc11c \ub9cc\ub4e4\uc5b4 \ubd24\ub2e4\uac00 \ucd94\uac00 \uc694\uae08\uc774 \ub098\uc628\uc801\uc774 \uc788\ub2e4. \ud83d\ude41<\/p>\n\n\n\n
    \uacb0\ub860<\/h1>\n\n\n\n
    \ub2e4\uc74c \ubd80\ud130\ub294 \uc774\ubbf8\uc9c0\ub97c \uc5c5\ub370\uc774\ud2b8 \ud558\uace0 \uc2f6\uc744 \ub550 \uba3c\uc800 \ubc31\uc5c5\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uc791\uc5c5 \ubc0f \ud655\uc778\ud558\uace0 \ucd5c\uc885\uc73c\ub85c IP\ub97c \ubcc0\uacbd \ud558\ub3c4\ub85d \ud558\uc790.<\/p>\n","protected":false},"excerpt":{"rendered":"
    \ub9dd\ud588\ub2e4! Litghtsail\uc758 Ubuntu \ubc30\ud3ec\ud310\uc774 \ub108\ubb34 \uc624\ub798\uc804 \uac83\uc774\ub77c \ucf58\uc194\uc5d0 \uc811\uadfc\ud574\uc11c \uc870\uc2ec\uc2a4\ub7fd\uac8c screen session\ub3c4 \uc0c8\ub85c \ub9cc\ub4e4\uc5b4 \uac00\uba74\uc11c \uc5c5\uadf8\ub808\uc774\ub4dc\ub97c \ud588\ub294\ub370 \ub05d\ub098\uace0 \ub098\ub2c8 SSH\uac00 \uc548\ub41c\ub2e4. \uc544\ub9c8\ub3c4 \uc911\uac04\uc5d0 SSH\uad00\ub828 \ud658\uacbd\uc124\uc815\uc744 \ud30c\uc77c\uc744 \ubcc0\uacbd\ud560 \uac83\uc778\uc9c0 \ubb3b\ub294 \uc120\ud0dd\uba54\ub274\uac00 \ub098\uc654\ub294\ub370, \ud604\uc7ac \uc124\uc815\uc744 \uadf8\ub0e5 \uc4f0\uaca0\ub2e4\uace0 \ud588\ub358\uac8c \ubb38\uc81c\uc778\uac83 \uac19\ub2e4. \ub2e4\ud589\ud788 blogging service\ub294 \uc798\ub3cc\uc544 \uac00\uace0 \uc788\uc9c0\ub9cc SSH\uac00 \uc548\ub418\uba74 \uc11c\ubc84\uad00\ub9ac\ub97c \ud560 \ubc29\ubc95\uc774 \uc5c6\ub294\ub370… Workaound \ub2e4\ud589\ud788 \uc138\uc0c1\uc740 \uc0dd\uac01\ubcf4\ub2e4 \ub113\uace0 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[4,5],"tags":[17,245,190,244,117,243,246],"class_list":["post-2575","post","type-post","status-publish","format-standard","hentry","category-linux","category-programming","tag-aws","tag-launch-script","tag-lightsail","tag-snapshot","tag-ssh","tag-upbunt-upgrade","tag-246"],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":2658,"url":"https:\/\/litcoder.com\/?p=2658","url_meta":{"origin":2575,"position":0},"title":"Lightsail Ubuntu 20.04 \uc5c5\uadf8\ub808\uc774\ub4dc \ud6c4 ssh \uc811\uc18d \ubd88\uac00 \ud604\uc0c1","author":"litcoder","date":"2020\ub144 12\uc6d4 1\uc77c","format":false,"excerpt":"Lightsail\uc758 \uc774\ubbf8\uc9c0\ub97c Ubuntu 20.04 LTS\ub85c \uc5c5\uadf8\ub808\uc774\ub4dc \ud55c \ud6c4 web \ud658\uacbd\uc5d0\uc11c SSH \uc811\uc18d\uc774 \ub418\uc9c0 \uc54a\uc544\uc11c \ub610 \ub9dd\ud588\ub2e4\uba70 \uba38\ub9ac\ub97c \uc950\uc5b4 \ub72f\uace0 \uc788\ub294\ub370, \uc6b0\uc5f0\ud788, \ub2f9\uc5f0\ud788 \uc548 \ub420 \uac70\ub77c\uace0 \uc0dd\uac01\ud588\ub358 \ud130\ubbf8\ub110 \ud504\ub85c\uadf8\ub7a8\uc744 \ud1b5\ud55c SSH \uc811\uc18d\uc740 \ub610 \ub418\ub294 \uae30\ud604\uc0c1\uc744 \ubc1c\uacac\ud588\ub2e4. \uc774 \ub300\ub85c\ub3c4 \ub098\uc058\uc9c4 \uc54a\uc9c0\ub9cc \uc880 \ucc1c\ucc1c \ud558\uae30\ub3c4 \ud558\uace0 \ud574\uc11c \uc880 \ub354 \ucc3e\uc544 \ubcf4\uc558\ub2e4. \uc811\uc18d \uc624\ub958\uac00\u2026","rel":"","context":""Linux"\uc5d0\uc11c","block_context":{"text":"Linux","link":"https:\/\/litcoder.com\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2024\/05\/sc_lightsail_ssh_ok.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2024\/05\/sc_lightsail_ssh_ok.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2024\/05\/sc_lightsail_ssh_ok.png?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":4189,"url":"https:\/\/litcoder.com\/?p=4189","url_meta":{"origin":2575,"position":1},"title":"Lightsail \uc11c\ubc84\uac00 \uc790\uafb8 \uc8fd\uc5b4\uc694","author":"litcoder","date":"2026\ub144 3\uc6d4 18\uc77c","format":false,"excerpt":"Jetpack\uc774 \uc694\uc998\ucc98\ub7fc \ub9ce\uc774 \ub9d0\uc744 \uac74 \uc801\uc774 \uc788\uc5c8\ub358\uac00? \ucd5c\uadfc\uc5d0 Bitnami\uc5d0\uc11c Amazon Linux 2023\uc73c\ub85c \uc774\uc0ac\ud558\uba74\uc11c Lightsail instance\ub97c \ud55c \ub2e8\uacc4 \ube44\uc2fc \uac83\uc73c\ub85c \uc62c\ub9ac\uace0 \ub098\uc11c\ubd80\ud130 \uc6f9\uc0ac\uc774\ud2b8\uac00 \ub2e4\uc6b4\ub418\uc5c8\ub2e4\ub294 Jetpack\uc758 \ub178\ud2f0\uac00 \uacc4\uc18d \ub72c\ub2e4. \ub354 \ube44\uc2f8\uba74 \ub354 \uc798\ub3cc\uc544\uc57c \ub418\ub294 \uac83 \uc544\ub2cc\uac00? \uc774\ub7f0 \ub178\ud2f0\ub97c \ubc1b\uace0\ub098\uc11c \ud655\uc778\ud574 \ubcf4\uba74 \ube14\ub85c\uadf8\uac00 \uc811\uc18d\ub418\uc9c0 \uc54a\uc744 \ubfd0\ub9cc \uc544\ub2c8\ub77c SSH \uc870\ucc28\ub3c4 \ub728\uc9c0 \uc54a\ub294 \uc0c1\ud0dc\uac00 \ub418\uc5b4\u2026","rel":"","context":""Linux"\uc5d0\uc11c","block_context":{"text":"Linux","link":"https:\/\/litcoder.com\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2026\/02\/xmlrpc_attac_log.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2026\/02\/xmlrpc_attac_log.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2026\/02\/xmlrpc_attac_log.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2026\/02\/xmlrpc_attac_log.png?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1545,"url":"https:\/\/litcoder.com\/?p=1545","url_meta":{"origin":2575,"position":2},"title":"Emacs\ub85c AWS EC2 \uc6d0\uaca9\uc9c0 \ud30c\uc77c \ud3b8\uc9d1","author":"litcoder","date":"2017\ub144 3\uc6d4 12\uc77c","format":false,"excerpt":"Emacs\uc758 TRAMP mode\ub97c \uc0ac\uc6a9\ud558\uba74 \uc6d0\uaca9\uc11c\ubc84\uc5d0 \uc788\ub294 \ubd88\ub7ec\uc640\uc11c \ubc14\ub85c \ud3b8\uc9d1\ud560 \uc218 \uc788\ub2e4. \ub2e4\uc74c\uc740 ssh\uac00 \ub3cc\uace0\uc788\ub294 AWS EC2 \uc11c\ubc84\uc758 \ud30c\uc77c\uc744 TRAMP mode\ub85c \ud3b8\uc9d1\ud558\uae30 \uc704\ud55c \uc124\uc815\uc744 \uc124\uba85\ud55c\ub2e4. Emacs: version 25.1 (macOS) init.el\uc5d0 TRAMP mode \uc124\uc815\uc744 \ucd94\uac00. ;TRAMP (require 'tramp) (setq tramp-default-method \"ssh\") \ud3b8\uc9d1\ud560 \uc6d0\uaca9\uc9c0 \ud30c\uc77c\uc744 \ubd88\ub7ec \uc62c \ub54c\ub294 \uacc4\uc815@\ud638\uc2a4\ud2b8:\ud30c\uc77c\uacbd\ub85c \ud615\uc2dd\uc73c\ub85c \ud558\uba74\ub418\ub294\ub370, EC2\uc758 pem\u2026","rel":"","context":""Tools & Tips"\uc5d0\uc11c","block_context":{"text":"Tools & Tips","link":"https:\/\/litcoder.com\/?cat=6"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4409,"url":"https:\/\/litcoder.com\/?p=4409","url_meta":{"origin":2575,"position":3},"title":"[Tip] \ud3ec\ud2b8 \ud3ec\uc6cc\ub529 \uc124\uc815 \uc0c1\ud0dc\uc5d0\uc11c VNC SSH Tunneling","author":"litcoder","date":"2026\ub144 5\uc6d4 20\uc77c","format":false,"excerpt":"VNC SSH Tunneling\uc5d0 \ub300\ud574 \ub2e4\ub8ec \uc801\uc774 \uc788\uc5c8\ub294\ub370, macOS\uc5d0\uc11c \uae30\ubcf8 \uc81c\uacf5\ub418\ub294 Screen Sharing \uac19\uc740 app\uc73c\ub85c \uc811\uc18d\ud558\ub824\uba74 SSH \ud130\ub110\ub9c1\uc744 \uc124\uc815\ud558\ub294 GUI\uac00 \uc5c6\uc73c\ubbc0\ub85c \ud574\ub2f9 \ud3ec\uc2a4\ud305\uc758 \"SSH Tunneling \uc124\uc815\uc774 \uc5c6\ub294 \uacbd\uc6b0\" \ud56d\ubaa9\uc758 \uc548\ub0b4\uc5d0 \ub530\ub77c \ub2e4\uc74c\uacfc \uac19\uc740 \uba85\ub839\uc5b4\ub97c \ud130\ubbf8\ub110\uc5d0 \uc785\ub825\ud558\uace0 localhost\uc758 5999\ubc88 \ud3ec\ud2b8\ub85c \uc5f0\uacb0\uc744 \uc2dc\ub3c4\ud558\uba74 \ub41c\ub2e4\uace0 \ud588\uc5c8\ub2e4. # SSH \ud130\ub110\ub9c1. # 22\ubc88 SSH \ud3ec\ud2b8\ub97c \ud1b5\ud574\u2026","rel":"","context":""Linux"\uc5d0\uc11c","block_context":{"text":"Linux","link":"https:\/\/litcoder.com\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2026\/05\/macos_screen_sharing_vnc_settings.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":3853,"url":"https:\/\/litcoder.com\/?p=3853","url_meta":{"origin":2575,"position":4},"title":"SSH Permission denied (publickey)","author":"litcoder","date":"2025\ub144 11\uc6d4 26\uc77c","format":false,"excerpt":"\uc8fc\ub85c \uc2dc\uc2a4\ud15c\uc744 \uc124\uc815\ud558\ub294 \ucd08\uae30\uc5d0 \ubc1c\uc0dd\ud558\ub294 \ubb38\uc81c\uc778\ub370 private key\uac00 \uc81c\ub300\ub85c \uc788\uace0 file permission\ub3c4 \uc798 \uc124\uc815 \ub418\uc5b4 \uc788\uc74c\uc5d0\ub3c4 ssh \uc811\uc18d\uc744 \uc2dc\ub3c4\ud558\uba74 \uad8c\ud55c \uc624\ub958\uac00 \ubc1c\uc0dd\ud558\ub294 \uacbd\uc6b0\uac00 \uc788\ub2e4. $ ssh -T git@github.com git@github.com: Permission denied (publickey). \ud574\uacb0\ud558\ub294 \ubc29\ubc95\uc740 \uc0ac\uc6a9\ud558\ub824\ub294 private key\ub97c ssh-add \uba85\ub839\uc5b4\ub97c \uc774\uc6a9\ud574\uc11c ssh-agent\uc5d0\uac8c \ucd94\uac00\ud574 \uc8fc\ub294 \uac83\uc778\ub370, \ub9cc\uc57d ssh-agent\uac00 \ub3d9\uc791\ud558\uc9c0 \uc54a\ub294 \uc0c1\ud0dc\ub77c\uba74 \uc774\u2026","rel":"","context":""Linux"\uc5d0\uc11c","block_context":{"text":"Linux","link":"https:\/\/litcoder.com\/?cat=4"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3967,"url":"https:\/\/litcoder.com\/?p=3967","url_meta":{"origin":2575,"position":5},"title":"Shell drop\uc774 \ub418\uc9c0 \uc54a\uc744 \ub54c \uc6d0\uaca9\uc11c\ubc84 \uc7ac\uc2dc\ub3d9","author":"litcoder","date":"2025\ub144 12\uc6d4 10\uc77c","format":false,"excerpt":"\uc6d0\uaca9 \uc11c\ubc84\uc758 \uc2dc\uc2a4\ud15c \ub178\ub4dc\uac00 \ub9dd\uac00\uc84c\uac70\ub098 \uacfc\ub3c4\ud55c task \uc2e4\ud589\uc73c\ub85c ssh\ub85c \uc811\uadfc\ud560 \ub54c \uc81c\ub300\ub85c shell\uc744 drop\ud558\uc9c0 \ubabb\ud558\ub294 \uacbd\uc6b0\uac00 \uc885\uc885 \uc0dd\uae34\ub2e4. ssh\ub294 \uc6d0\uaca9 \uc11c\ubc84\uc5d0\uc11c \uc2e4\ud589\ud560 \uba85\ub839\uc5b4\ub97c \uc778\uc790\ub85c \ubc1b\uc744 \uc218 \uc788\uc9c0\ub9cc ls\uac19\uc740 \ub2e8\uc21c\ud55c \uba85\ub839\uc5b4\uc640\ub294 \ub2ec\ub9ac reboot \uba85\ub839\uc5b4\ub97c \uc218\ud589\ud558\ub824\uba74 sudo \uad8c\ud55c\uc744 \uc811\uadfc\ud558\uae30 \uc704\ud55c \ube44\ubc00\ubc88\ud638 \uc785\ub825\uc744 \ud544\uc694\ub85c \ud55c\ub2e4. \ube44\ub85d ssh\uac00 \"Secure SHell\"\uc774\ub77c\uace0\ub294 \ud574\ub3c4 \uc77c\ubc18\uc801\uc778 shell\ucc98\ub7fc \uc0c1\ud638\uc791\uc6a9\uc744\u2026","rel":"","context":""Tools & Tips"\uc5d0\uc11c","block_context":{"text":"Tools & Tips","link":"https:\/\/litcoder.com\/?cat=6"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2025\/12\/sc_ssh_sudo_err.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2025\/12\/sc_ssh_sudo_err.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2025\/12\/sc_ssh_sudo_err.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2025\/12\/sc_ssh_sudo_err.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/litcoder.com\/wp-content\/uploads\/2025\/12\/sc_ssh_sudo_err.png?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/posts\/2575","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/litcoder.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2575"}],"version-history":[{"count":18,"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/posts\/2575\/revisions"}],"predecessor-version":[{"id":3686,"href":"https:\/\/litcoder.com\/index.php?rest_route=\/wp\/v2\/posts\/2575\/revisions\/3686"}],"wp:attachment":[{"href":"https:\/\/litcoder.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2575"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/litcoder.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2575"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/litcoder.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}