Bom dia pessoal, eu estou sendo vítima de alguns ataques ao meu servidor de e-mail.
De algum tempo pra cá, eu sando uma olhada em meus logs, notei que sempre há uma coisa desse tipo: Dec 6 21:11:01 mail sshd[63814]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:05 mail sshd[63829]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:06 mail sshd[63831]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:08 mail sshd[63834]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:10 mail sshd[63836]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:12 mail sshd[63839]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:15 mail sshd[63841]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:16 mail sshd[63843]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:19 mail sshd[63850]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:21 mail sshd[63858]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:24 mail sshd[63860]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:26 mail sshd[63862]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:28 mail sshd[63864]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Dec 6 21:11:30 mail sshd[63866]: reverse mapping checking getaddrinfo for ns.speedyserver3.co.uk failed - POSSIBLE BREAKIN ATTEMPT! Já instalei o brutecblock, que resolveu por algum curto tempo, mas agora está voltando de novo... O que vocês me recomendam pra solucionar essa questão? Grato desde já. -- Junior Pires Assistente de Informáica CPD Gujão Alimentos. Tel: (75) 3244-2121 (Ramal 202). -- Esta mensagem foi verificada pelo sistema de antivírus e acredita-se estar livre de perigo. ------------------------- Histórico: http://www.fug.com.br/historico/html/freebsd/ Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd
