From: Dank Bagryantsev <4alt@mail.ru> To: ALT Linux sysadmin discuss <sysadmins@lists.altlinux.org> Subject: Re: [Sysadmins] SSH Brute force Date: Fri, 17 Mar 2006 21:53:16 +0200 Message-ID: <9510174868.20060317215316@lugaport.net> (raw) In-Reply-To: <20060317102024.1a4eb52e@shadow.orionagro.com.ua> Здравствуйте, Dmitriy. Вы писали 17 марта 2006 г., 10:20:24: DLK> Есть у нас один стрелец, шибко грамотный, стервец... (С) "Про Федота..." DLK> Так вот, он, гад, постоянно пытается поиметь мой сервер путем подбора DLK> пароля к моему SSHd ... DLK> При чем, характерная особенность: Наличие строки DLK> Received disconnect from 64.238.37.22: 11: Bye Bye DLK> Особенно "Bye Bye" ... DLK> Подскажите, если кто знает, чем он это делает... DLK> Честно обещаю, только для внутреннего применения :) DLK> А тому, кто скажет, ни чего не будет, кроме моей благодарности :) :) Не знаю, этим ли подбирают, но можете посмотреть например здесь: THC-Hydra A very fast network logon cracker which support many different services Last update 2006-01-23 http://thc.org/thc-hydra/ DLK> А если мне удастся настроить защиту от такого рода атак, расскажу всем. Вот, нашел в течении 10 минут поиска, но не разбирался... Fail2Ban scans log files like /var/log/pwdfail or /var/log/apache/error_log and bans IP that makes too many password failures. It updates firewall rules to reject the IP address. http://fail2ban.sourceforge.net http://www.the-art-of-web.com/system/fail2ban/ pam_abl Provides auto blacklisting of hosts and users responsible for repeated failed authentication attempts. Generally configured so that blacklisted users still see normal login prompts but are guaranteed to fail to authenticate. http://www.hexten.net/pam_abl/ -- sshdfilter V1.4.2 -- ssh brute force attack blocker Introduction sshdfilter blocks the frequent brute force attacks on ssh daemons, it does this by directly reading the sshd logging output and generating iptables rules, the process can be quick enough to block an attack before they get a chance to enter any password at all. http://www.csc.liv.ac.uk/~greg/sshdfilter/ -- С уважением, Dank
prev parent reply other threads:[~2006-03-17 19:53 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2006-03-17 8:20 Dmitriy L. Kruglikov 2006-03-17 8:20 ` Eugene A. Suchkov 2006-03-17 8:34 ` Dmitriy L. Kruglikov 2006-03-17 8:29 ` Serge Kompan 2006-03-17 8:46 ` Dmitriy L. Kruglikov 2006-03-17 11:58 ` Беляев В.Н. 2006-03-17 8:46 ` Alexey I. Froloff 2006-03-17 9:04 ` Dmitriy L. Kruglikov 2006-03-17 13:51 ` [Sysadmins] [JT] " Dmitry V. Levin 2006-03-17 13:59 ` [Sysadmins] " Michael Shigorin 2006-03-17 15:05 ` Dmitriy L. Kruglikov 2006-03-17 12:00 ` Беляев В.Н. 2006-03-17 13:53 ` Dmitry V. Levin 2006-03-17 14:07 ` [Sysadmins] [faq] " Michael Shigorin 2006-03-17 14:41 ` [Sysadmins] " Dmitriy L. Kruglikov 2006-03-17 19:53 ` Dank Bagryantsev [this message]
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=9510174868.20060317215316@lugaport.net \ --to=4alt@mail.ru \ --cc=sysadmins@lists.altlinux.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
ALT Linux sysadmins discussion This inbox may be cloned and mirrored by anyone: git clone --mirror http://lore.altlinux.org/sysadmins/0 sysadmins/git/0.git # If you have public-inbox 1.1+ installed, you may # initialize and index your mirror using the following commands: public-inbox-init -V2 sysadmins sysadmins/ http://lore.altlinux.org/sysadmins \ sysadmins@lists.altlinux.org sysadmins@lists.altlinux.ru sysadmins@lists.altlinux.com public-inbox-index sysadmins Example config snippet for mirrors. Newsgroup available over NNTP: nntp://lore.altlinux.org/org.altlinux.lists.sysadmins AGPL code for this site: git clone https://public-inbox.org/public-inbox.git