¸®·è½º ¼­¹ö Áß sshd°¡ ƯÁ¤¾ÆÀÌÇÇ¿¡¼­ ¼ö ÃÊ°£°ÝÀ¸·Î °è¼Ó °ø°Ý¹Þ°í ÀÖÀ» ¶§ ¾î¶»°Ô ÇؾßÇϳª¿ä?

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¸®·è½º ¼­¹ö Áß sshd°¡ ƯÁ¤¾ÆÀÌÇÇ¿¡¼­ 2ÃÊ°£°ÝÀ¸·Î °è¼Ó °ø°Ý¹Þ°í ÀÖÀ» ¶§ ¾î¶»°Ô ÇؾßÇϳª¿ä? ¸®·è½º Ãʺ¸ÀÚ¶ó¼­ Àß ¸ð¸£°Ú½À´Ï´Ù.

openSSH°¡ °ú¿¬ ¾ÈÀüÇϳª¿ä? Áö¼ÓÀûÀ¸·Î ÇÁ·Î±×·¥À» »ç¿ëÇؼ­ µé¾î¿À·Á°í ÇÕ´Ï´Ù. log¸Þ¼¼Áö¸¦ º¸´Ï±î ´ÙÀ½°ú °°½À´Ï´Ù.

# cat /var/log/messages

Áß·«

Jun  1 15:47:47 tmp sshd(pam_unix)[16532]: check pass; user unknown
Jun  1 15:47:47 tmp sshd(pam_unix)[16532]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.152.167.147
Jun  1 15:47:51 tmp sshd(pam_unix)[16534]: check pass; user unknown
Jun  1 15:47:51 tmp sshd(pam_unix)[16534]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.152.167.147
Jun  1 15:47:55 tmp sshd(pam_unix)[16536]: check pass; user unknown
Jun  1 15:47:55 tmp sshd(pam_unix)[16536]: authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.152.167.147

2½Ã°£ ³»³» ¼öÃÊ °£°ÝÀ¸·Î µé¾î¿À·Á°í ÇÕ´Ï´Ù. ¾î¶»°Ô ÇØ¾ß Çϳª¿ä? ¶ó¿ìÅÍ¿¡ ¾ÆÀÌÇÇ ºí¶ôÅ·ÇÏ´Â ¿É¼ÇÀÌ ÀÖ¾ú´ø °Í °°±âµµ Çѵ¥... Áö±Ý ¸®·è½º¹Ú½º°¡ Áý¿¡ À־ ¾î¶»°Ô ÇØ¾ß Çϳª¿ä? ¾ÆÀÌÇÇ ÃßÀûÇÁ·Î±×·¥À¸·Î º¸´Ï±î ´ºÀúÁö¿¡¼­ ¿À³×¿ä.

º¸¾È¿¡ ½Å°æ½á¾ß ÇÒ °Í °°½À´Ï´Ù. ¸îÀÏÀü¿¡µµ ±×³É Ŭ·¡½¬µÇ¾î¼­ ´Ù½Ã ÇÁ·Î±×·¥À» ±ò¾Ò½À´Ï´Ù. ¾îÁ¦´Â Çб³¿¡¼­ ¹«·áÁ¦°øµÇ´Â ¸®·è½º¿ë ¹ÙÀÌ·¯½º ÇÁ·Î±×·¥µµ ±ò¾Ò½À´Ï´Ù. À̰͵µ µµ¿òÀÌ µÉ±î¿ä?

°¨»çÇÕ´Ï´Ù.

ªÀº±Û Àϼö·Ï ½ÅÁßÇÏ°Ô.


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