SFTPããã¨ãã®è»¢éãã°(xferlog)ãè¨é²ããããã®è¨å®ã¯ãã©ãããã°è¯ãã§ããããï¼ RHç³»(9.0/ES3/4)ãOpenSSH_3.5p1以éã§ãã
../ files/ 13-Nov-2008 16:55 - HEADER.html 28-Feb-2011 02:26 5203 scr.png 31-Mar-2006 19:52 65082
sshã«ã¯ãã¤ãããã¯è»¢éã¨ããæ©è½ãããããã®æ©è½ã使ãã¨ãsshã¯ã¢ããªã±ã¼ã·ã§ã³å´ã«ã¯SOCKSããã¯ã·ã¨ãã¦æ¯ãèãããããããsshã®æ¥ç¶å ã¾ã§ã¯æå·åãããç¶æ ã§éä¿¡ãè¡ãããã ããã ãã ã¨é常ã®ãã³ããªã³ã°ã¨ã©ãéãã®ãããããããªããããããªããããã¤ãããã¯è»¢éã®å ´åã¯è»¢éãã¼ããæå®ããå¿ è¦ããªããããããã¤ãããã¯ã¨è¡¨ç¾ãããæ以ã ããã ä¾ãã°ããªãã£ã¹Aã«ããéçºãµã¼ãdev1ã«ãªãã£ã¹å¤ããã¢ã¯ã»ã¹ãããã¨ãããããããdev1ã¯ãªãã£ã¹å¤ã«ã¯å ¬éããã¦ããããè¸ã¿å°ãµã¼ãladd1ãçµç±ãã¦ããã¢ã¯ã»ã¹ãããããªããladd1ã¯sshã®ã¿ãåãã¦ãããããã¾ã§ã¯sshã®ãã³ããªã³ã°æ©è½ã使ã£ã¦ã¢ã¯ã»ã¹ãã¦ããã®ã ããã¦ã§ãã¢ããªã±ã¼ã·ã§ã³ããããã°ããéã¯ãã¡ãã¡ã¦ã§ãã¢ããªã±ã¼ã·ã§ã³ã®ãã¼ãæ¯ã«ãã³ãã«ãæãã®ãé¢åãããããªãã£ã¹ã«éãããã¼ã¿ã»ã³ã¿ã¼ã¸
å¤æ®µSSHã®è©±ã 2008-05-02è¿½è¨ ncã®-w secãªãã·ã§ã³ã§ãä¸å®æééä¿¡ããªããã°ncãçµäºããããã«ãã¾ããããã®ãªãã·ã§ã³ãæå®ããªãã¨ãsshã³ãã¯ã·ã§ã³ãåã£ãå¾ã§ãncã®ããã»ã¹ãæ®çãã¦ãã¾ãã¾ãã 2010-03-08 OpenSSH 5.4以éã®netcat mode (ssh -W host:port ...) ã使ãã°ãncã³ãã³ãã¯ä¸è¦ããã 2010-11-08 zshã§No such file or directoryã¨è¨ãããã®ã¯ããããåå ããhttps://bugzilla.mindrot.org/show_bug.cgi?id=1494 æ£æ»æ³ã§ããã¤ã«ã¢ã¯ã»ã¹ããã«ã¯ä¸å³ã®ãããªSSHã¢ã¯ã»ã¹ãç¹°ãè¿ããªããã°ãªããªããã¨ãã£ãç¶æ³ãããã¨ããã uchi ----> otonari otonari ----> genkan genkan
ã/etc/hosts.allowããã¡ã¤ã«ãªã©ã§ã¢ã¯ã»ã¹å¶éãªã©ãè¡ã£ã¦ãã¦ããç¸æ¬¡ãã¢ã¿ãã¯ã«é ãæ©ã¾ãã¦ããªãã ããããsyslogã«ã¢ã¿ãã¯ã®çè·¡ãä½è¡ãæ®ã£ã¦ãããã¨ã«ãæ°ã«ãªã£ã¦ãã管çè ã¯å¤ãã¯ãã ã ã»ãã¥ã¢ã·ã§ã«ã½ããã®1ã¤ãOpenSSHããå©ç¨ãã¦ããå ´åã«ã¯ãä¸æ£ãªã¢ã¿ãã¯ãç«ã¦ç¶ãã«è¡ãããéã次ã®ããã«è¨å®ãããã¨ã§ã¢ã¯ã»ã¹å ã«å¶éãæãããã¨ãã§ããã ãMaxStartupsãã«ã¯3ã¤ã®æ°å¤ãã:ãã«åºåããã¦è¨è¿°ããã¦ãããSSHãã¼ã¢ã³ã¸ã®èªè¨¼è¦æ±æ°ãæå³ããã ä¸è¨ã®è¨å®ä¾ã§ã¯ãã2ãã¤ã¾ã§ã®æ¥ç¶è¦æ±ãåãä»ãã3ã¤ãè¶ ãããã以éã®è¦æ±ãã80ãï¼ ã®å²åã§æå¦ããããã«è¦æ±ãå¢ãç¶ãã¦ã5ãã¤ãè¶ ããã¨ä»¥éãã¹ã¦ãæå¦ããã¨ããæå³ã ãèªåã®ãµã¼ãç°å¢ã«å¿ãã¦æ°å¤ãå¤ããã¨ããã ãããå¤æ´å¾ã¯ãã¼ã¢ã³ãåèµ·åãããå¿ è¦ãããã
rsaèªè¨¼ç¨ã®å人éµãæã¡æ©ããã©ãç«ã£ãã®ã§ãã£ãããã¹ã¯ã¼ãèªè¨¼ããã£ã¬ã³ã¸ã¬ã¹ãã³ã¹èªè¨¼ãç¡å¹ã«ãã¦ãã¤ãã§ã«PAMèªè¨¼ãç¡å¹ã«ãã¦ã¿ã¾ããã # vi /etc/ssh/sshd_config PasswordAuthentication no ChallengeResponseAuthentication no UsePAM no ããã§ãå¤å°ã¯ã»ãã¥ã¢ã«ãªã£ãããªã¨æã£ã¦ãããã§ãããä»æ¥ãµã¨ãªã¢ã¼ããã·ã³ãsshãå©ç¨ããããã¯ã¢ããã«å¤±æãã¦ããäºã«æ°ãã¤ãã¾ããã ããã¤ã¯ãªã¢ã¼ãããã¯ã¢ããå°ç¨ã¢ã«ã¦ã³ããªã®ã§ãã¹ã¯ã¼ããè¨å®ããå ã rhaèªè¨¼ã使ã£ã¦ããã§ããªãã§ããªãã¨æããªããæ©ésyslogãã®ããã¿ã¦ãã㨠sshd[---]: User hoge not allowed because account is locked ããã¯ã¢ã«ã¦ã³ãã£ã¦ä½?(è¦ç¬) ã©
4æ9æ¥ã®ã¨ã³ããªã§ç°å¢ãä½ã£ã¦ã4æ10æ¥ã®ã¨ã³ããªã§åé¡ãæ¸ãã件ã ããä¸åº¦æ´çããã¨ãããªæãã ãµã¼ãå´ã¯OpenSSHãã¤ãã£ã¦ãã¯ã©ã¤ã¢ã³ãå´ã¯puttyã¨FileZillaã使ã£ã¦æ¯è¼ç容æã«ã»ãã¥ã¢ãªftpãµã¼ãããã¦ããã¨ãã§ããã ãããããã©ã«ãã®ã¾ã¾ã®è¨å®ã ã¨ããµã¼ãä¸ã®èªã¿è¾¼ã¿æ¨©ããããã¡ã¤ã«ã丸è¦ãã«ãªãã SSHã§ãã°ã¤ã³ããããã¨ããããSFTPã¢ã¯ã»ã¹ã ãã«å¶éãããã èããããã®ã¯sftpã§ã¢ã¯ã»ã¹ãã¦ããã¦ã¼ã¶ã«chrootã£ã½ãå¶éãããã¦ãç¹å®ã®ãã£ã¬ã¯ããªä»¥å¤ã®ã¢ã¯ã»ã¹ã許ããªããã¨ãtectia(åç¨ssh)ã«ã¯ã¦ã¼ã¶åä½ã«chrootããããæ©è½ãããã¾ããOpenSSHã4.8ããä¼¼ããããªæ©è½ã追å ããã¾ãããä»æ¥ã¯ããã試ãã¦ã¿ã¾ãã ã ãããããã®éããã¡ãã£ã¨ééã£ã¦ããã¨ãããããã®ã§ããã¯ä¿®æ£ãã¾ããã ã¦ã¼ã¶ãä½æãã ä»
ããã«ã¡ã¯ããããçµçµé·ãã¨ããã¡ããã§ãã ä»åã¯phpmyadminãªã©ã®ç®¡çç³»ã¢ããªã±ã¼ã·ã§ã³ãæ軽ã«ã»ãã¥ã¢ã«ã¢ã¯ã»ã¹ããæ¹æ³ãç´¹ä»ãããã¨æãã¾ãã phpmyadminãªã©ã®ç®¡çç³»ã¢ããªã±ã¼ã·ã§ã³ã¯ä¾¿å©ãªåé¢ãã»ãã¥ãªãã£ä¸åé¡ã«ãªãäºããããããIPå¶éãããããããã®ã§ãããã¢ã¯ã»ã¹å¯è½ãªãµã¤ããå¢ããã¨IPã®ç®¡çã ãã§ã²ã¨æéããã£ã¦ãã¾ãã¾ããä»åã¯ãã®æéãçãäºã主ç¼ã«ããã¦ã¢ã¯ã»ã¹å¶éãããã¦ã¿ã¾ãã ä»åã¯ä»¥ä¸ã®ãããªæ¡ä»¶ã®ãµã¤ããæ§ç¯ããã¨ãã¾ãã ã°ãã¼ãã«IPã®ãããµã¼ãã«å¯¾ãã¦Apacheåã³MySQLã§ãµã¤ããæ§ç¯ç®¡çè ã¯SSHãéãã¦ãµã¼ããã¡ã³ããã³ã¹ãã ãã¦ããã®ãµã¼ãã«å¯¾ãã¦phpmyadminãå ¥ãããã®ã§ãããã©ããã£ã¦ã¤ã³ã¹ãã¼ã«ãã¾ããããï¼ ã¾ããphpmyadminèªä½ãã¤ã³ã¹ãã¼ã«ãã¾ããdebianç³»ã§ããã°ã/var/www
ã¾ã 試ãã¦ãªããã©ã New features: Added chroot(2) support for sshd(8), controlled by a new option "ChrootDirectory". Please refer to sshd_config(5) for details, and please use this feature carefully. (bz#177 bz#1352) http://www.openssh.com/txt/release-4.9 ãã¨ããããå ´åã«ãã£ã¦ã¯ä½¿ããããªå¤æ´ç¹ã Accept the PermitRootLogin directive in a sshd_config(5) Match block. Allows for, e.g. permitting root only from the local network
ç¨éãã¨ã«åããã¿ã¼ããã«ã®é¸ã³æ¹ - UNIXçãªã¢ã¬ ã§ãæ¸ãã¾ããããè¤æ°ã®ãµã¼ãã¼ã«sshã®å ¬ééµãé ããããªã¨ãã¯ãã¹ã¯ã¼ããèªåå ¥åããããããªã¹ã¯ãªããã便å©ã§ãã ä¼¼ããããªãã¨ãã§ããè¨èªã§ãexpectãããã¾ããèªåã¯TeraTermãã¯ããå©ç¨ããã±ã¼ã¹ãå¤ãã§ãã ãããªã¨ãã«æ¸ããç°¡åãªTeraTermãã¯ããç´¹ä»ãã¾ãã sendln 'for i in `cat ~/serverlist` ; do ssh-copy-id $i ; done' :loop wait '(yes/no)?' 'password:' 'Password:' if result=1 sendln 'yes' # (yes/no)? ã¨èãããã¨ãã«yesã¨å ¥åããã if result=2 sendln '********' # password: ã¨èãããã¨ãã«èªåã®ãã¹ã¯ã¼
DSAS ã®ã¡ã³ããã³ã¹ã¯ï¼åºæ¬çã« ssh ã使ã£ããªã¢ã¼ãã¡ã³ããã³ã¹ã§æ¸ãã§ãã¾ãã¾ãï¼å¤ä¸ãä¼æ¥ã«é常äºæ ãèµ·ãã£ãã¨ãã¦ãï¼ãããã¯ã¼ã¯æ¥ç¶ãã確ä¿ã§ããã°ãã®å ´ã§å¯¾å¿ã§ãã¾ãï¼ãã ï¼ãããã«ã¤ã³ã¿ã¼ããããã DSAS ã«ç´æ¥ ssh ã§ããæ§ã«ãã¦ããã®ã¯ä¸æ¹ã®ä¸å®ãããã¾ãï¼ã§ãã®ã§ï¼DSAS ã¸ã® ssh æ¥ç¶ã¯ç¤¾å ã®ãµã¼ãããã®ã¿è¨±ãããã«ãã¦ããã¦ï¼å¤ãããã°ã¤ã³ããå¿ è¦ãããã¨ãã¯ä¸æ¦ç¤¾å ã®ãµã¼ããçµç±ãããã¨ã«ãã¦ãã¾ãï¼ ãã®ãããªå½¢ã«ãã¦ããå ´åï¼DSAS ã«ãã°ã¤ã³ãããã¨ããéã¯ï¼ä¸æ¦ç¤¾å ã®ãµã¼ãã« ssh æ¥ç¶ããå¿ è¦ããã£ã¦ï¼å°ããªãã¨ã§ããä¸æéããã£ã¦ãã¾ãã¾ãï¼ã§ããã°ã¯ã³ã¹ãããã§æ¥ç¶ã§ããæ¹æ³ãç¡ããã¨æã£ã¦è²ã æ¤ç´¢ãã¦ã¿ã(â»)ã¨ããï¼ãã®ãã¼ã¸ã§ ProxyCommand ã¨ããè¨å®é ç®ãè¦ã¤ãã¾ãã(è¦ã¤ããã®ããã¹ã®å人ãµã¤ããªã®ã¯æ¬
åå sshd_config - OpenSSH SSH ãã¼ã¢ã³ è¨å®ãã¡ã¤ã« æ¸å¼ /etc/ssh/sshd_config 説æ sshd 㯠/etc/ssh/sshd_config (ãããã¯ã³ãã³ãã©ã¤ã³ãã -f ãªãã·ã§ã³ã§æå®ãããã¡ã¤ã«) ããè¨å®ãèªã¿è¾¼ã¿ã¾ãããã®ãã¡ã¤ã«ã®åè¡ã¯ ``ãã¼ã¯ã¼ã å¼æ°'' ã®å½¢å¼ã«ãªã£ã¦ããã空è¡ããã㯠`#' ã§å§ã¾ãè¡ã¯ã³ã¡ã³ãã¨ã¿ãªããã¾ãã 使ç¨ã§ãããã¼ã¯ã¼ãã¨ãã®èª¬æã¯ä»¥ä¸ã®éãã§ã (ãã¼ã¯ã¼ãã§ã¯å¤§æåå°æåã¯åºå¥ããã¾ããããå¼æ°ã§ã¯åºå¥ããããã¨ã«æ³¨æãã¦ãã ãã): AFSTokenPassing (AFS ãã¼ã¯ã³ãã¹) ãã®ãªãã·ã§ã³ã¯ AFS ãã¼ã¯ã³ããµã¼ãã«è»¢éããããã©ããæå®ãã¾ããããã©ã«ã㯠``no'' ã§ãã AllowGroups (許å¯ããã°ã«ã¼ã) ãã®ãã¼ã¯ã¼ãã«ã¯ããã¤
ssh -D 㧠çä¼¼SOCKSãµã¼ãã¼ ã«ãªããã¨ãã§ããã ã¨ããã®ã¯ããããåã«ãæ¸ããã ããã«ãã©ã¹ãã¦ãä»»æã®ã³ãã³ãã SOCKS対å¿ããã tsocks ãå©ç¨ã㦠VPNã®ãããªãã¨ããã£ã¦ã¿ãã ( tsocksã¯ãå é²çãªãã£ã¹ããªãã¥ã¼ã·ã§ã³ã 㨠ããã©ã«ãã§å ¥ã£ã¦ããããªæ°ãããã) ãã¨ãã°ã local -> hostA -> hostB ã¨ãhostA ãå¿ ãçµç±ããªããã°å°éã§ããªã hostB ããã£ãã¨ããå ´åã ããããå©ç¨ããã¨ãåããããã¯ã¼ã¯ã«ãããã®ããã« ä»»æã®ã¢ããªã±ã¼ã·ã§ã³ãé¨ããã¨ãã§ããããã«ãªãããã local$ tsocks ssh user@hostB ä¸è¨ã®ããã«ãlocal ããç´æ¥ã¢ã¯ã»ã¹ã§ããããã«ãªãã ã¡ãªã¿ã«ããµã¼ãã¼å´ã«ã ã½ããã¦ã§ã¢ãã¤ã³ã¹ãã¼ã«ããå¿ è¦ã¯ãªãã ãã®å ´åã§è¨ããlocal ã®ã¿ã«ã½ããã¦
ãæ¸ãã®ãå¿ãã¦ããã®ã§ä¸å¿æ¸ãã¦ããã command="ä»»æã®ã³ãã³ã" ã¨ãã¦ããã¨ãä»»æã®ã³ãã³ãããå®è¡ã§ããªã å ¬ééµãä½ããã¨ããã®ã¯åã«æ¸ãããã ãã®ã¨ãã«ã$SSH_ORIGINAL_COMMAND ã¨ããç°å¢å¤æ°ãå©ç¨ããã°ã åçã«å¦çãåãåãããã¨ãåºæ¥ãã 以ä¸ã¯ãã®ä¾ã§ããã command="cat $SSH_ORIGINAL_COMMAND" ãã®ããã«ãã¦ããã°ã ssh user@remote_host "/var/log/messages" ããã§ãä»»æã®ãã¡ã¤ã«ãcatããã ãã®å ¬ééµãã§ããã â¦ããã«æããããã$SSH_ORIGINAL_COMMAND ã®é¨åã ãã¾ãå ·åã«èª¿ç¯ããã°ãæªæããã³ãã³ããæ³¨å ¥ãããã¨ãåºæ¥ã¦ãã¾ãã 試ãã«ãããã¯ã¯ãªã¼ãæ¼ç®åãå©ç¨ã㦠uptime ãå®è¡ãã¦ã¿ãã $ ssh user@remote_
SSHã¯ã©ã¤ã¢ã³ãï¼ã³ãã³ãï¼ã§ã¯ãä»»æã®ãã¼ãçªå·ãæå®ãã¦è»¢éãè¡ãæ©è½ãç¨æããã¦ãããç°¡æçã§ã¯ãããã®ã®VPNã©ã¤ã¯ãªå©ç¨ãå¯è½ã«ãªãã®ã ã ä¾ãã°ãSSHãã°ã¤ã³ã¯è¨±å¯ããã¦ããããPOP3ã®110çªãã¼ããã°ãã¼ãã«ã«éããã¦ããªãå ´åãSSHã®22çªãä»ãã¦110çªãã¼ãã®POP3ãµã¼ãã¹ãå©ç¨ã§ããããã«ãªãã å ·ä½çãªå©ç¨æ¹æ³ãæãããã次ã®ä¾ã¯ããã°ã¤ã³å ã®ãmail.example.comãã®ãã¡ã¤ã¢ã¦ã©ã¼ã«å ã§ç¨¼åããã¦ããPOP3ãµã¼ãã¹ãããã¼ã«ã«ã®1045çªï¼ä»»æï¼ã«å²ãå½ã¦ãæå®ã ããã®éããã¼ã«ã«ã®ã¡ã¼ã«ã½ããã§ã¯POP3ã®æ¨æº110çªã1045çªã«å¤æ´ãã¦ããå¿ è¦ãããã ä¸è¨ã®ããããã®ãªãã·ã§ã³æå®ã¯ã次ã®ãããªæå³ã«ãªã£ã¦ããã -N ãã°ã¤ã³å¾ã«ãã¼ããã©ã¯ã¼ããè¡ãã -f ãã°ã¤ã³èªè¨¼å¾ã¯ããã¯ã°ã©ã¦ã³ãã§åä½ããããã¹ãã¬ã¼ãºå ¥åå¾ãå度
ãµã¼ãã«ç½®ãããã¡ã¤ã«ãå¤é¨ããæ±ãæ¹æ³ã®ä¸ã¤ã¨ãã¦sshãããã¾ããsshã®è¯ãã¨ããã¯ãç§å¯éµã使ç¨ããèªè¨¼ï¼ç§å¯éµãªã絶対å®å ¨ã¨ããããã§ã¯ããã¾ãããï¼ãåä¸ã®ãã¼ã(22çª)ã§ã»ãã¥ã¢ãªéä¿¡è·¯ã確ä¿ã§ãããã¨ã«ããã¾ãããä¸æ¹ã§ã·ã¹ãã ã«ãã°ã¤ã³ãã¦ã·ã§ã«ã§ããã¨ããããã³ãã³ãã使ç¨ã§ãã¦ãã¾ãã¨ããåé¡ãããã¾ããåºæ¬çã«ç®¡çè 以å¤ã¯ã·ã§ã«ã§ã®ã¢ã¯ã»ã¹ã¯ãããã«ãftpã«å¤ããæ¹æ³ã§ã»ãã¥ã¢ãªãã¡ã¤ã«è»¢éãããããå ´åãä½ããã®å¯¾çãå¿ è¦ã«ãªãã¾ãããã®ãããªè¦æ±ã«çãã¦ãããã®ããrsshã§ãã rssh ã¯ãã¹ãã¸ã® ssh ã使ã£ãã¢ã¯ã»ã¹ã®å¶éãæä¾ããå¶éä»ãã·ã§ã«ã§ãã·ã§ã«ã rssh ã«è¨å®ãããã¦ã¼ã¶ã«ã¯ãscpãsftpãcvsãrdistãrsyncã®ãã¡è¨±å¯ããããã®ããå©ç¨ã§ããªãããã«ã§ãã¾ããããã§ã¯ãscp 㨠sftp ã®ã¿ã許å¯ããã¤ã¡ã¼ã¸ã§
jailï¼ã¸ã§ã¤ã«ï¼ã¨ã¯ãã·ã¹ãã ã®ã«ã¼ããã£ã¬ã¯ããªãä»®æ³çã«å¤æ´ããæ©æ§ã示ãç¨èªã§ããããã®æ©æ§ãå©ç¨ããã¨ãç¹å®ã®ãµã¼ãã¹ãåé¢ãã¦ãã¡ã¤ã«ã·ã¹ãã ã¸ã®ã¢ã¯ã»ã¹ãç¦æ¢ããããã¨ãã§ããã å¤é¨ããã®æ»æã«å¼±ããµã¼ãã¹ã®1ã¤ã«ä¾µå ¥ãããã¨ãããã足ãããã«ã·ã¹ãã å ¨ä½ãä¸æ£å©ç¨ãããå¯è½æ§ããããããã»ãã¥ãªãã£çã«ä¸åããã£ããç§å¿æ§ã®é«ããããã¯ã¼ã¯ãµã¼ãã¹ãéç¨ããå ´åã¯chrootãç¨ããjailåãæ¤è¨ãã¹ãã ãããjailåããããµã¼ãã¹ã«ä¸æ£ä¾µå ¥ãããã¨ãã¦ããããããçã¿åºãããã®ã¯ãä¾µå ¥è ã«èªã¿åããã¦ãå½±é¿ã®ãªãæ å ±ã ãã«éå®ãã¦ãããããã§ãããå ·ä½çã«ä½ãjailåãã¦ããã°ããã®ãã¨ããã¨ãããã¯ä¸æ£ä¾µå ¥ã«ä½¿ããæãã¿ã¼ã²ããã§ãããä¾ãã°BINDãApacheãFTPãSSHã¨ãã£ããµã¼ãã¹ãæãããããããã¦æ¬ç¨¿ã§ç´¹ä»ããã®ã¯ãOpenSSHãã¼ã¢ã³ã«j
ãªãªã¼ã¹ãé害æ å ±ãªã©ã®ãµã¼ãã¹ã®ãç¥ãã
ææ°ã®äººæ°ã¨ã³ããªã¼ã®é ä¿¡
å¦çãå®è¡ä¸ã§ã
j次ã®ããã¯ãã¼ã¯
kåã®ããã¯ãã¼ã¯
lãã¨ã§èªã
eã³ã¡ã³ãä¸è¦§ãéã
oãã¼ã¸ãéã
{{#tags}}- {{label}}
{{/tags}}