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¿Ã¸®±â¿Ã·ÁÁü: 2015.4.30 ¸ñ, 4:10 pm    ÁÖÁ¦: ·Î±× ÆÄÀÏ ºÐ¼® ºÎŹµå¸³´Ï´Ù. Àοë°ú ÇÔ²² ´äº¯ ±Û ÆíÁý/»èÁ¦

Feb 17 00:06:52 localhost sshd[1666]: Server listening on 0.0.0.0 port 22.
Feb 17 00:06:52 localhost sshd[1666]: Server listening on :: port 22.
Feb 16 03:09:27 localhost polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.26 [/usr/libexec/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale ko_KR.UTF-Cool
Feb 16 03:10:02 localhost unix_chkpwd[2131]: account root has password changed in future
Feb 16 03:11:03 localhost unix_chkpwd[2138]: password check failed for user (root)
Feb 16 03:11:03 localhost login: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=tty2 ruser= rhost= user=root
Feb 16 03:11:05 localhost login: FAILED LOGIN 1 FROM (null) FOR root, Authentication failure
Feb 16 03:11:10 localhost unix_chkpwd[2141]: account root has password changed in future
Feb 16 03:11:11 localhost login: pam_unix(login:session): session opened for user root by LOGIN(uid=0)
Feb 16 03:11:11 localhost login: ROOT LOGIN ON tty2
Feb 16 03:11:16 localhost unix_chkpwd[2165]: account root has password changed in future
Feb 16 03:11:19 localhost unix_chkpwd[2166]: account root has password changed in future
Feb 16 03:11:19 localhost passwd: pam_unix(passwd:chauthtok): password changed for root
Feb 16 03:11:19 localhost passwd: gkr-pam: couldn't update the 'login' keyring password: no old password was entered
Apr 21 08:04:13 localhost sshd[1699]: Server listening on 0.0.0.0 port 22.
Apr 21 08:04:13 localhost sshd[1699]: Server listening on :: port 22.
Apr 21 08:04:51 localhost polkitd(authority=local): Registered Authentication Agent for Oct 19 19:29:35 localhost sshd[777]: Received signal 15; terminating.
Oct 19 19:31:03 localhost sshd[786]: Server listening on 0.0.0.0 port 22.
Oct 19 19:31:51 localhost xinetd[800]: START: sgi_fam pid=1440 from=
Oct 19 19:33:37 localhost xinetd[800]: START: sgi_fam pid=1638 from=
Oct 19 23:22:33 localhost sshd[786]: Received signal 15; terminating.
Oct 19 23:24:00 localhost sshd[786]: Server listening on 0.0.0.0 port 22.
Oct 19 23:24:45 localhost xinetd[800]: START: sgi_fam pid=1454 from=
Oct 20 02:15:47 localhost sshd[3028]: Did not receive identification string from 218.20.56.40
Oct 20 02:27:51 localhost sshd[786]: Received signal 15; terminating.
Oct 20 02:29:18 localhost sshd[786]: Server listening on 0.0.0.0 port 22.
Oct 20 02:29:59 localhost xinetd[800]: START: sgi_fam pid=1454 from=


Ãʺ¸ÀÚ °¡ 2015.5.04 ¿ù, 5:02 pm¿¡ ¼öÁ¤ÇÔ, ÃÑ 2 ¹ø ¼öÁ¤µÊ
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¿Ã¸®±â¿Ã·ÁÁü: 2015.5.01 ±Ý, 6:39 am    ÁÖÁ¦: Re: ·Î±× ÆÄÀÏ ºÐ¼® ºÎŹµå¸³´Ï´Ù. Àοë°ú ÇÔ²² ´äº¯ ±Û ÆíÁý/»èÁ¦

Ãʺ¸ÀÚ ¾¸:
¾Æ·¡ ·Î±×ÆÄÀÏÀε¥ ºÐ¼® ºÎŹµå¸³´Ï´Ù.
Feb 17 00:06:52 localhost sshd[1666]: Server listening on 0.0.0.0 port 22.
Feb 17 00:06:52 localhost sshd[1666]: Server listening on :: port 22.

ssh°¡ ±âº» Æ÷Æ®ÀÎ 22¹ø Æ÷Æ®·Î ¿­·Á¼­, Á¤»óÀûÀ¸·Î Á¢¼ÓÀÌ °¡´ÉÇÏ´Ù´Â ¸»ÀÔ´Ï´Ù.

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Feb 16 03:09:27 localhost polkitd(authority=local): Registered Authentication Agent for session /org/freedesktop/ConsoleKit/Session1 (system bus name :1.26 [/usr/libexec/polkit-gnome-authentication-agent-1], object path /org/gnome/PolicyKit1/AuthenticationAgent, locale ko_KR.UTF-Cool

polkit¶ó´Â ÀÎÁõµ¥¸ó °ü·Ã ¸Þ½ÃÁöÀÔ´Ï´Ù.

Ãʺ¸ÀÚ ¾¸:

Feb 16 03:10:02 localhost unix_chkpwd[2131]: account root has password changed in future


root ºñ¹Ð¹øÈ£ º¯°æÇÑ ½Ã°£ÀÌ ¼­¹ö ½Ã°£º¸´Ù ¹Ì·¡ÀÇ ½Ã°£À̶ó´Â °Ì´Ï´Ù.
¿¹¸¦ µé¾î ºñ¹Ð¹øÈ£¸¦ ¼­¹ö½Ã°£ 5¿ù 1ÀÏ 06:00ºÐ¿¡ º¯°æÇß´Ù¸é, ½Ã°£ÀÌ È帥 ÈÄ ¼­¹ö½Ã°£ÀÌ 5¿ù 1ÀÏ 06½Ãº¸´Ù °ú°ÅÀÏ ¼ö ¾ø¾î¾ß ÇÏÀݾƿä.
±×·±µ¥ ±×·¸Áö ¾ÊÀ» ¶§ ³ª¿À´Â ¸Þ½ÃÁöÀÔ´Ï´Ù.

·Î±×µéÀº ÀúÀåµÈ ·Î±×¸¦ ¼ø¼­´ë·Î ÷ºÎÇϽŰÅÁÒ?
±×·¸´Ù¸é ¼­¹ö½Ã°£ÀÌ Çѹø º¯°æµÈ °Í °°¾Æ¿ä. À§¿¡ sshd[1666]: ·Î±×¿¡´Â 2.17 00:06:52ºÐÀÌ°í, ±× ´ÙÀ½ ·Î±×´Â 16ÀÏ 03½ÃÀÔ´Ï´Ù.
¼­¹ö ½Ã°£ÀÌ ¾Õ´ç°ÜÁø°ÅÁÒ. ½Ã°£ÀÌ ¾Õ´ç°ÜÁö´Ï root ºñ¹Ð¹øÈ£°¡ ¼­¹ö½Ã°£º¸´Ù ³ªÁß¿¡ º¯°æÇÑ °ÍÀ¸·Î µÇ¹ö¸®´Ï ¸Þ½ÃÁö°¡ ³ª¿Â°Ì´Ï´Ù.

¼­¹ö ½Ã°£À» º¯°æÇÑ ÀûÀÌ ¾ø´Ù¸é, ¼­¹ö ½Ã°£À» üũÇغ¼ ÇÊ¿ä°¡ ÀÖÀ» °Í °°½À´Ï´Ù.

Ãʺ¸ÀÚ ¾¸:

Feb 16 03:11:03 localhost unix_chkpwd[2138]: password check failed for user (root)
Feb 16 03:11:03 localhost login: pam_unix(login:auth): authentication failure; logname=LOGIN uid=0 euid=0 tty=tty2 ruser= rhost= user=root
Feb 16 03:11:05 localhost login: FAILED LOGIN 1 FROM (null) FOR root, Authentication failure

root·Î ·Î±ä ½ÇÆÐ ¸Þ½ÃÁöÀÔ´Ï´Ù.

Ãʺ¸ÀÚ ¾¸:

Feb 16 03:11:10 localhost unix_chkpwd[2141]: account root has password changed in future
Feb 16 03:11:11 localhost login: pam_unix(login:session): session opened for user root by LOGIN(uid=0)
Feb 16 03:11:11 localhost login: ROOT LOGIN ON tty2

root·Î ·Î±ä ¼º°ø ¸Þ½ÃÁöÀÔ´Ï´Ù.

Ãʺ¸ÀÚ ¾¸:

Feb 16 03:11:19 localhost unix_chkpwd[2166]: account root has password changed in future
Feb 16 03:11:19 localhost passwd: pam_unix(passwd:chauthtok): password changed for root
Feb 16 03:11:19 localhost passwd: gkr-pam: couldn't update the 'login' keyring password: no old password was entered

2¹ø°ÁÙÀº ºñ¹Ð¹øÈ£¸¦ º¯°æÇß´Ù´Â °ÍÀÌ°í,
3¹ø°ÁÙÀº ºñ¹Ð¹øÈ£ º¯°æ½Ã gnome-keyring PAM¿¡¼­ ¸Þ½ÃÁö°¡ ³ª¿Â °Çµ¥, couldn't update the 'login' keyring password: no old password was entered ¸Þ½ÃÁö¸¦ º»ÀûÀÌ ¾ø¾î¼­ ´äÀ» µå¸®±â ¾î·Æ³×¿ä.
https://www.linux.com/community/forums/linux-security/unable-to-successfully-change-root-password ¿¡ pwconv ½ÇÇàÀ¸·Î ÇØ°áÇß´Ù´Â ±ÛÀÌ Àֳ׿ä./
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