{"id":758,"date":"2025-07-08T01:47:32","date_gmt":"2025-07-07T16:47:32","guid":{"rendered":"https:\/\/www.decteng.com\/?p=758"},"modified":"2025-08-19T12:49:21","modified_gmt":"2025-08-19T03:49:21","slug":"debian-linux-ssh-server-setup","status":"publish","type":"post","link":"https:\/\/www.decteng.com\/ko\/debian-linux-ssh-server-setup\/","title":{"rendered":"\ub370\ube44\uc548 \ub9ac\ub205\uc2a4 \uc124\uce58 \ud6c4 \ud544\uc218 \uc124\uc815 2 – SSH \uc124\uc815\uacfc \uc0ac\uc6a9\ubc95"},"content":{"rendered":"\n

\uc708\ub3c4\uc6b0\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c, \ub370\ube44\uc548 \ub9ac\ub205\uc2a4 \uc5ed\uc2dc \uc124\uce58\ud55c \ud6c4 \ud544\uc218\uc801\uc73c\ub85c \ud574\uc57c \ud558\ub294 \uc124\uc815\ub4e4\uc774 \uba87 \uac00\uc9c0 \uc788\ub2e4. \uadf8\uc911 (\ud544\uc790 \uc0dd\uac01\uc73c\ub85c\ub294) \ub450 \ubc88\uc9f8\ub85c \ud574\uc918\uc57c \ud558\ub294 \uc124\uc815\uc778 SSH \uc124\uc815\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc790.<\/p><\/section>

SSH(Secure SHell)\uc774\ub780?<\/h2>

SSH\ub294 \ud154\ub137(Telnet)<\/dfn>\uc758 \uc554\ud638\ud654 \ubc84\uc804\uc73c\ub85c, \uc708\ub3c4\uc6b0\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \uc6d0\uaca9 \ub370\uc2a4\ud06c\ud0d1\uc774\ub098 \ud300\ubdf0\uc5b4 \uac19\uc740 \uc6d0\uaca9 \uc5f0\uacb0 \uc218\ub2e8\uc774\ub2e4. SSH\ub97c \uc0ac\uc6a9\ud558\uba74 \ub2e4\ub978 \uc7a5\uc18c\uc5d0 \uc788\ub294 \ub9ac\ub205\uc2a4 \uc2dc\uc2a4\ud15c\uc5d0 \uc6d0\uaca9\uc73c\ub85c \uc811\uc18d\ud558\uc5ec \uba85\ub839\uc744 \uc2e4\ud589\ud558\uace0 \ud30c\uc77c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\ub2e4. \ub300\ubd80\ubd84 \uc11c\ubc84\uc758 \uc5ed\ud560\uc744 \uac10\ub2f9\ud558\uba70 \uc5b4\ub518\uac00\uc5d0 \ucc98\ubc15\ud600 \uc788\uc744 \ub9ac\ub205\uc2a4 \uc2dc\uc2a4\ud15c\uc5d0 \uc811\uadfc\ud558\uae30 \uc704\ud574 \ud544\uc694\ud55c \uc544\uc8fc \uc720\uc6a9\ud558\uace0 \uae30\ubcf8\uc801\uc778 \ub3c4\uad6c \ub418\uaca0\ub2e4. \ubcf4\ud1b5 TCP 22\ubc88 \ud3ec\ud2b8\ub97c \uc0ac\uc6a9\ud55c\ub2e4.<\/p><\/section>

SSH \ub370\ubaac\uc758 \ub3d9\uc791 \uc0c1\ud0dc \ud655\uc778<\/h2>

\uc774 \ube14\ub85c\uadf8\uc758 \ub370\ube44\uc548 \ub9ac\ub205\uc2a4 \uc124\uce58 \ubc29\ubc95\uc744 \ub530\ub77c \uc124\uce58\ub41c \ub9ac\ub205\uc2a4 \uc2dc\uc2a4\ud15c\uc774\ub77c\uba74 \uae30\ubcf8\uc801\uc73c\ub85c \ub3d9\uc791\ud558\uace0 \uc788\uaca0\uc73c\ub098, \ud639 \uc544\ub2d0 \uacbd\uc6b0\ub3c4 \uc788\uc73c\ub2c8 \uba3c\uc800 SSH\uac00 \uc124\uce58\ub418\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud55c\ub2e4. systemctl status ssh<\/kbd> \uba85\ub839\uc744 \uc785\ub825\ud558\uace0 \uc5d4\ud130\ub97c \ub204\ub974\uc790. (\uc544\ub798 \uc608\uc5d0\uc11c\ub294 sudo\ub97c \ud568\uaed8 \uc0ac\uc6a9\ud588\ub2e4.)<\/p>

newuser@debian:\/$ sudo systemctl status ssh<\/kbd>\n\u25cf ssh.service - OpenBSD Secure Shell server\n    Loaded: loaded (\/lib\/systemd\/system\/ssh.service; enabled; preset: enabled)\n    Active: active (running) since Tue 2024-11-05 15:34:08 KST; 1h 23min ago\n      Docs: man:sshd(8)\n            man:sshd_config(5)\n   Main PID: 545 (sshd)\n     Tasks: 1 (limit: 19041)\n    Memory: 8.4M\n       CPU: 283ms\n    CGroup: \/system.slice\/ssh.service\n            \u2514\u2500545 \"sshd: \/usr\/sbin\/sshd -D [listener] 0 of 10-100 startups\"<\/samp><\/pre>
Loaded<\/samp>\uc640 Active<\/samp> \ud56d\ubaa9\uc744 \ubcf4\uba74, \uc124\uce58\uac00 \ub418\uc5b4 \uc788\uc73c\uba70, \ub3d9\uc791 \uc911\uc778 \uac83\uc73c\ub85c \ud45c\uc2dc\ub418\uace0 \uc788\ub2e4. \ud639\uc740 \uc544\ub798\uc640 \uac19\uc774 \ub098\uc62c \ub54c\ub3c4 \uc788\uc744 \uac83\uc774\ub2e4.<\/p>
newuser@debian:~$ sudo systemctl status ssh\n[sudo] newuser \uc554\ud638: \nUnit ssh.service could not be found.<\/samp><\/pre>
\uc774 \uacbd\uc6b0\uc5d0\ub294, SSH \ud504\ub85c\uadf8\ub7a8\uc774 \uc124\uce58\ub418\uc5b4 \uc788\uc9c0 \uc54a\uace0 (\ub2f9\uc5f0\ud788) \ub3d9\uc791\ub3c4 \ud558\uc9c0 \uc54a\ub294\ub2e4\ub294 \uc598\uae30\ub2e4. \uc774\ub7f4 \uacbd\uc6b0\uc5d0\ub294 SSH \ub370\ubaac\uc744 \uc124\uce58\ud574 \uc8fc\uc5b4\uc57c \ud55c\ub2e4.<\/p><\/section>
SSH \ub370\ubaac \uc124\uce58 \ubc29\ubc95<\/h2>
SSH \ub370\ubaac\uc774 \uc874\uc7ac\ud558\uc9c0 \uc54a\ub294\ub2e4\uba74, \uc9c1\uc811 \uc124\uce58\ud574 \uc8fc\uc5b4\uc57c \ud55c\ub2e4. apt install openssh-server<\/kbd>\ub77c\uace0 \uc785\ub825\ud558\uace0 \uc5d4\ud130\ub97c \uce5c\ub2e4.<\/p>
newuser@debian:~$ sudo apt install openssh-server<\/kbd>\n\ud328\ud0a4\uc9c0 \ubaa9\ub85d\uc744 \uc77d\ub294 \uc911\uc785\ub2c8\ub2e4... \uc644\ub8cc\n\uc758\uc874\uc131 \ud2b8\ub9ac\ub97c \ub9cc\ub4dc\ub294 \uc911\uc785\ub2c8\ub2e4... \uc644\ub8cc\n\uc0c1\ud0dc \uc815\ubcf4\ub97c \uc77d\ub294 \uc911\uc785\ub2c8\ub2e4... \uc644\ub8cc     \nThe following additional packages will be installed:\n  libwrap0 openssh-sftp-server runit-helper\n\uc81c\uc548\ud558\ub294 \ud328\ud0a4\uc9c0:\n  molly-guard monkeysphere ssh-askpass ufw\n\ub2e4\uc74c \uc0c8 \ud328\ud0a4\uc9c0\ub97c \uc124\uce58\ud560 \uac83\uc785\ub2c8\ub2e4:\n  libwrap0 openssh-server openssh-sftp-server runit-helper\n0\uac1c \uc5c5\uadf8\ub808\uc774\ub4dc, 4\uac1c \uc0c8\ub85c \uc124\uce58, 0\uac1c \uc81c\uac70 \ubc0f 0\uac1c \uc5c5\uadf8\ub808\uc774\ub4dc \uc548 \ud568.\n583 k\ubc14\uc774\ud2b8 \uc544\uce74\uc774\ube0c\ub97c \ubc1b\uc544\uc57c \ud569\ub2c8\ub2e4.\n\uc774 \uc791\uc5c5 \ud6c4 2,327 k\ubc14\uc774\ud2b8\uc758 \ub514\uc2a4\ud06c \uacf5\uac04\uc744 \ub354 \uc0ac\uc6a9\ud558\uac8c \ub429\ub2c8\ub2e4.\n\uacc4\uc18d \ud558\uc2dc\uaca0\uc2b5\ub2c8\uae4c? [Y\/n] \n\ubc1b\uae30:1 http:\/\/deb.debian.org\/debian bookworm\/main amd64 openssh-sftp-server amd64 1:9.2p1-2+deb12u3 [65.8 kB]\n\ubc1b\uae30:2 http:\/\/deb.debian.org\/debian bookworm\/main amd64 runit-helper all 2.15.2 [6,520 B]\n\ubc1b\uae30:3 http:\/\/deb.debian.org\/debian bookworm\/main amd64 libwrap0 amd64 7.6.q-32 [54.9 kB]\n\ubc1b\uae30:4 http:\/\/deb.debian.org\/debian bookworm\/main amd64 openssh-server amd64 1:9.2p1-2+deb12u3 [456 kB]\n\ub0b4\ub824\ubc1b\uae30 583 k\ubc14\uc774\ud2b8, \uc18c\uc694\uc2dc\uac04 0\ucd08 (8,042 k\ubc14\uc774\ud2b8\/\ucd08)\n\ud328\ud0a4\uc9c0\ub97c \ubbf8\ub9ac \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4...\nSelecting previously unselected package openssh-sftp-server.\n(\ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc77d\ub294\uc911 ...\ud604\uc7ac 33758\uac1c\uc758 \ud30c\uc77c\uacfc \ub514\ub809\ud130\ub9ac\uac00 \uc124\uce58\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.)\nPreparing to unpack ...\/openssh-sftp-server_1%3a9.2p1-2+deb12u3_amd64.deb ...\nUnpacking openssh-sftp-server (1:9.2p1-2+deb12u3) ...\nSelecting previously unselected package runit-helper.\nPreparing to unpack ...\/runit-helper_2.15.2_all.deb ...\nUnpacking runit-helper (2.15.2) ...\nSelecting previously unselected package libwrap0:amd64.\nPreparing to unpack ...\/libwrap0_7.6.q-32_amd64.deb ...\nUnpacking libwrap0:amd64 (7.6.q-32) ...\nSelecting previously unselected package openssh-server.\nPreparing to unpack ...\/openssh-server_1%3a9.2p1-2+deb12u3_amd64.deb ...\nUnpacking openssh-server (1:9.2p1-2+deb12u3) ...\nrunit-helper (2.15.2) \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4 ...\nopenssh-sftp-server (1:9.2p1-2+deb12u3) \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4 ...\nlibwrap0:amd64 (7.6.q-32) \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4 ...\nopenssh-server (1:9.2p1-2+deb12u3) \uc124\uc815\ud558\ub294 \uc911\uc785\ub2c8\ub2e4 ...\nCreating config file \/etc\/ssh\/sshd_config with new version\nCreating SSH2 RSA key; this may take some time ...\n3072 SHA256:4qcjiT\/SPKDgVumH5pN8GaI4WN2ag4HzY0Yf7vvpD1A root@debian (RSA)\nCreating SSH2 ECDSA key; this may take some time ...\n256 SHA256:xFd0GH9apekDQHILjIBATi5ycvQ2SC3Xxv6tzcITkzo root@debian (ECDSA)\nCreating SSH2 ED25519 key; this may take some time ...\n256 SHA256:Ir5tChXthopxZUGSWCNu\/LBS+2pKb\/t6Tnr5ZuuLdtQ root@debian (ED25519)\nCreated symlink \/etc\/systemd\/system\/sshd.service \u2192 \/lib\/systemd\/system\/ssh.service.\nCreated symlink \/etc\/systemd\/system\/multi-user.target.wants\/ssh.service \u2192 \/lib\/systemd\/system\/ssh.service.\nrescue-ssh.target is a disabled or a static unit, not starting it.\nssh.socket is a disabled or a static unit, not starting it.\nProcessing triggers for man-db (2.11.2-2) ...\nProcessing triggers for libc-bin (2.36-9+deb12u8) ...\nnewuser@debian:~$ <\/samp><\/pre>
\ubcc4\ub2e4\ub978 \ubb38\uc81c\uac00 \uc5c6\ub2e4\uba74, \uc704 \uc608\uc640 \uac19\uc774 \ub2e4\uc6b4\ub85c\ub4dc\ud558\uc5ec \uc124\uce58\uac00 \uc9c4\ud589\ub41c\ub2e4. \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ub370\ubaac\uc774 \uc81c\ub300\ub85c \ub3d9\uc791\ud558\ub294\uc9c0 \ud655\uc778\ud558\uae30 \uc704\ud574 systemctl status ssh<\/kbd> \uba85\ub839\uc744 \uc785\ub825\ud558\uace0 \uc5d4\ud130\ub97c \ub204\ub974\uc790.<\/p>
\uc704\uc5d0\uc11c \ud55c\ubc88 \ubcf4\uc558\ub4ef, Loaded<\/samp>\uc640 Active<\/samp> \ud56d\ubaa9\uc774 \ud65c\uc131\ud654\ub418\uc5b4 \uc788\uc73c\uba74, \uc815\uc0c1 \ub3d9\uc791\ud55c\ub2e4\ub294 \uc758\ubbf8\uc774\ub2e4. XSHELL<\/a> \uac19\uc740 SSH \uc811\uc18d \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \uc774\uc6a9\ud574 \uc811\uc18d\ud558\uc5ec \uc0ac\uc6a9\ud558\uba74 \ub418\uaca0\ub2e4.<\/p><\/section>
SSH\uc5d0 \uad00\ud55c \ucd94\uac00\uc801\uc778 \ud301\uacfc \uc815\ubcf4\ub4e4<\/h2>
SSH\ub97c \uaf2d \uc124\uce58\ud574\uc57c \ud558\ub294\uac00?<\/dt>
SSH\uac00 \uaf2d \ud544\uc218\ub294 \uc544\ub2c8\uc9c0\ub9cc \ub9e4\uc6b0 \uc77c\ubc18\uc801\uc774\uace0 \uad11\ubc94\uc704\ud558\uac8c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4. \ub54c\ubb38\uc5d0 \uc124\uce58\ud560 \uac83\uc744 \uad8c\uc7a5\ud55c\ub2e4. \ud558\uc9c0\ub9cc \ub370\uc2a4\ud06c\ud1b1 \ud658\uacbd\uc774\ub098 \ub85c\uceec \ud658\uacbd\uc5d0\uc11c\ub9cc \uc0ac\uc6a9\ud55c\ub2e4\uba74 \uad73\uc774 \uc124\uce58\ud558\uc9c0 \uc54a\uc544\ub3c4 \ubb34\ubc29\ud558\ub2e4.<\/dd>
SSH\ub85c \ud560 \uc218 \uc788\ub294 \uc791\uc5c5\uc740 \uc5b4\ub5a4 \uac83\uc774 \uc788\ub294\uac00?<\/dt>
SSH\uc758 \uae30\ubcf8 \uc6a9\ub3c4\ub294 \uc6d0\uaca9\uc73c\ub85c \uc258 \ucf58\uc194\uc5d0 \uc811\uc18d\ud558\ub294 \uac83\uc774\ub2e4. \ub354\ud574\uc11c SCP(Secure Copy)\ub098 SFTP(SSH File Transfer Protocol)\ub97c \uc774\uc6a9\ud574 \ud30c\uc77c \uc804\uc1a1\ub3c4 \uac00\ub2a5\ud558\uba70, \ub9ac\ub205\uc2a4\uc758 \uc6d0\uaca9 \ub370\uc2a4\ud06c\ud1b1\uc778 X11 \ud3ec\uc6cc\ub529\uc5d0\ub3c4 \ud65c\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/dd>
SSH\uac00 \uc0ac\uc6a9\ud558\ub294 \ud3ec\ud2b8\ub294?<\/dt>
TCP 22\ubc88\uc744 \ud45c\uc900 \ud3ec\ud2b8\ub85c \uc0ac\uc6a9\ud558\uba70, \uc0ac\uc6a9\uc790\uac00 \uc9c0\uc815\ud55c \ud3ec\ud2b8\ub97c \uc0ac\uc6a9\ud574\ub3c4 \ubb34\ubc29\ud558\ub2e4.<\/dd>
SSH\uc640 \ud154\ub137(Telnet)\uc758 \ucc28\uc774\ub294?<\/dt>
Telnet\uc740 \ub370\uc774\ud130\ub97c \ud3c9\ubb38\uc73c\ub85c, SSH\ub294 \uc554\ud638\ud654\ud558\uc5ec \ud1b5\uc2e0\ud55c\ub2e4.<\/dd>
SSH \ud074\ub77c\uc774\uc5b8\ud2b8 \ud504\ub85c\uadf8\ub7a8\uc740 \uc5b4\ub5a4 \uac83\uc774 \uc788\ub294\uac00?<\/dt>
Putty, XSHELL \ub4f1\uc774 \uc788\uc73c\uba70, \ubaa8\ubc14\uc77c\uc5d0\uc11c\ub3c4 \ud074\ub77c\uc774\uc5b8\ud2b8 \ud504\ub85c\uadf8\ub7a8\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/dd>
\ud0a4\ub97c \uc800\uc7a5\ud55c\ub2e4\ub294 \uac8c \uc5b4\ub5a4 \uc758\ubbf8\uc778\uac00?<\/dt>
SSH\ub294 \uc554\ud638\ud654 \ud1b5\uc2e0\uc744 \uc81c\uacf5\ud55c\ub2e4. \ud0a4\ub294 \uba54\uc2dc\uc9c0\ub97c \uc554\ud638\ud654\ud558\uac70\ub098 \ubc18\ub300\ub85c \ud574\ub3c5\ud560 \ub54c \uc0ac\uc6a9\ub418\ub294 \uac83\uc73c\ub85c, \uac01\uac01\uc758 \ud638\uc2a4\ud2b8\ub9c8\ub2e4 \uace0\uc720\uc758 \ud0a4\ub97c \uac00\uc9c0\uac8c \ub41c\ub2e4. SSH \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc11c\ubc84\uc5d0 \ucc98\uc74c \uc811\uc18d\ud560 \uacbd\uc6b0 \ud574\ub2f9 \uc11c\ubc84\uc758 \ud0a4\ub97c \uac00\uc838\uc624\ub294 \uc774\uc720\ub294 \uc554\ud638\ud654-\ubcf5\ud638\ud654\uc5d0 \uc0ac\uc6a9\ud558\uae30 \uc704\ud574\uc11c\uc774\uba70, \ub2e4\uc74c \uc811\uc18d \ub54c \uc11c\ubc84 \uac80\uc99d\uc5d0\ub3c4 \ud65c\uc6a9\ub41c\ub2e4.<\/dd><\/dl><\/section>\n","protected":false},"excerpt":{"rendered":"
\ub370\ube44\uc548 \ub9ac\ub205\uc2a4 \uc124\uce58 \ud6c4 \ubc18\ub4dc\uc2dc \uc9c4\ud589\ud574\uc57c \ud558\ub294 \ub450\ubc88\uc9f8 \ud544\uc218 \uc124\uc815. systemctl\ub85c SSH \uc11c\ube44\uc2a4 \uc0c1\ud0dc\ub97c \ud655\uc778\ud558\uace0, apt\ub85c openssh-server\ub97c \uc124\uce58\ud558\uc5ec SSH \uc6d0\uaca9 \uc811\uc18d\uc744 \ud65c\uc131\ud654\ud558\ub294 \uacfc\uc815\uc744 \uc548\ub0b4\ud55c\ub2e4.<\/p>\n","protected":false},"author":1,"featured_media":1017,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[131,134,132,133,7,129,130],"class_list":{"0":"post-758","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-linux","8":"tag-ssh","9":"tag-systemctl","10":"tag-telnet","11":"tag-debianlinux","12":"tag-linux","13":"tag-system-management","14":"tag-remote-connection","15":"content-layout-excerpt-thumb"},"_links":{"self":[{"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/posts\/758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/comments?post=758"}],"version-history":[{"count":1,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/posts\/758\/revisions"}],"predecessor-version":[{"id":1121,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/posts\/758\/revisions\/1121"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/media\/1017"}],"wp:attachment":[{"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/media?parent=758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/categories?post=758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.decteng.com\/ko\/wp-json\/wp\/v2\/tags?post=758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}