Olá a todos, Acabo de me inscrever na lista. Fiz parte da lista principal do postfix durante muito tempo e recentemente cancelei a inscrição, por participar muito pouco.
Mas agora me vejo com um problema - novo pra mim - que vendo por alguns ângulos tem me parecido uma negação de serviço. Uso Linux Opensuse-10.2+Postfix2.3.2+cyrus-saslauthd-2.1.22 Meu host parece que vem sendo entupido de conexões externas vindas de milhares de IPs gerando warnings "SASL LOGIN authentication failed: authentication failure" e "verification failed: Name or service not known". Por conta disso, meus envios locais quase não estão acontecendo. Tenho pouco mais de uma centena de usuários dependendo desse host pra outgoing. Nos usuários mais urjentes tenho cadastrado um outgoing alternativo sem autenticação pra resolver o problema temporariamente enquanto tento descobrir uma forma de filtrar essas conexões ou descobrir por que elas acontecem. Alguém já passou por isso? Segue uma parte do meu maillog apenas com os warnings: guarani:/tmp # tail -f /var/log/warn Apr 8 16:01:03 guarani postfix/smtpd[19770]: warning: unknown[190.147.147.55]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:04 guarani postfix/smtpd[19509]: warning: unknown[200.230.51.66]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:04 guarani postfix/smtpd[19811]: warning: 221-155.126-70.tampabay.res.rr.com[70.126.155.221]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:04 guarani postfix/smtpd[19695]: warning: 246-46-235-201.fibertel.com.ar[201.235.46.246]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:04 guarani postfix/smtpd[19560]: warning: dsl- emcali-190.1.244.121.emcali.net.co[190.1.244.121]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:04 guarani postfix/smtpd[19585]: warning: 161.Red-79-157-224.dynamicIP.rima-tde.net[79.157.224.161]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:06 guarani postfix/smtpd[19542]: warning: 187.113.231.218: hostname 187.113.231.218.static.host.gvt.net.br verification failed: Name or service not known Apr 8 16:01:06 guarani postfix/smtpd[19542]: warning: unknown[187.113.231.218]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:06 guarani postfix/smtpd[19730]: warning: 189.107.70.37: hostname 189107070037.user.veloxzone.com.br verification failed: Name or service not known Apr 8 16:01:06 guarani postfix/smtpd[19876]: warning: 189-72-80-182.bnut3700.dsl.brasiltelecom.net.br[189.72.80.182]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:07 guarani postfix/smtpd[19546]: warning: unknown[187.54.193.66]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:07 guarani postfix/smtpd[19552]: warning: 187.37.166.245: hostname bb25a6f5.virtua.com.br verification failed: Name or service not known Apr 8 16:01:07 guarani postfix/smtpd[19552]: warning: unknown[187.37.166.245]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:07 guarani postfix/smtpd[19855]: warning: unknown[190.96.200.96]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:08 guarani postfix/smtpd[19759]: warning: unknown[207.6.61.2]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:09 guarani postfix/smtpd[19788]: warning: unknown[201.47.62.70]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:09 guarani postfix/smtpd[19666]: warning: 2.54.80.200.host.ifxnw.com.ar[200.80.54.2]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:10 guarani postfix/smtpd[19504]: warning: 201-27-98-60.dsl.telesp.net.br[201.27.98.60]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:11 guarani postfix/smtpd[19779]: warning: unknown[186.22.212.114]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:11 guarani postfix/smtpd[19794]: warning: unknown[187.106.238.185]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:13 guarani postfix/smtpd[19878]: warning: 189.7.36.151: hostname bd072497.virtua.com.br verification failed: Name or service not known Apr 8 16:01:14 guarani postfix/smtpd[19878]: warning: unknown[189.7.36.151]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:15 guarani postfix/smtpd[19848]: warning: 189.73.11.174: hostname 189-73-11-174.dsl.ctaje701.brasiltelecom.net.br verification failed: Name or service not known Apr 8 16:01:15 guarani postfix/smtpd[19848]: warning: unknown[189.73.11.174]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:15 guarani postfix/smtpd[19590]: warning: 177.17.77.63: hostname 177.17.77.63.static.host.gvt.net.br verification failed: Name or service not known Apr 8 16:01:16 guarani postfix/smtpd[19590]: warning: unknown[177.17.77.63]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:17 guarani postfix/smtpd[19726]: warning: unknown[187.112.144.243]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:17 guarani postfix/smtpd[19672]: warning: 189.26.201.62.dynamic.adsl.gvt.net.br[189.26.201.62]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:17 guarani postfix/smtpd[19581]: warning: unknown[200.81.216.184]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:17 guarani postfix/smtpd[19895]: warning: unknown[189.4.135.17]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:18 guarani postfix/smtpd[19776]: warning: 187.55.52.58: hostname 187-55-52-58.bnut3300.e.brasiltelecom.net.br verification failed: Name or service not known Apr 8 16:01:18 guarani postfix/smtpd[19612]: warning: unknown[187.9.57.67]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:18 guarani postfix/smtpd[19792]: warning: 200-203-39-136.paemt706.dsl.brasiltelecom.net.br[200.203.39.136]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:19 guarani postfix/smtpd[19776]: warning: unknown[187.55.52.58]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:19 guarani postfix/smtpd[19699]: warning: unknown[189.83.136.162]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:19 guarani postfix/smtpd[19576]: warning: 200-207-36-208.dsl.telesp.net.br[200.207.36.208]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:20 guarani postfix/smtpd[19723]: warning: pppclient-200165141161.redeveloz.com.br[200.165.141.161]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:20 guarani postfix/smtpd[19790]: warning: 189.26.110.151.dynamic.adsl.gvt.net.br[189.26.110.151]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:21 guarani postfix/smtpd[19621]: warning: 189.106.102.149: hostname 189106102149.user.veloxzone.com.br verification failed: Name or service not known Apr 8 16:01:22 guarani postfix/smtpd[19621]: warning: unknown[189.106.102.149]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:22 guarani postfix/smtpd[19532]: warning: unknown[190.29.172.153]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:22 guarani postfix/smtpd[19758]: warning: unknown[200.135.64.62]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:23 guarani postfix/smtpd[19772]: warning: unknown[187.76.11.162]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:24 guarani postfix/smtpd[19572]: warning: 201-25-68-2.gnace701.dsl.brasiltelecom.net.br[201.25.68.2]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:24 guarani postfix/smtpd[19868]: warning: 190.29.31.244: hostname static-adsl190-29-31-244.une.net.co verification failed: Name or service not known Apr 8 16:01:25 guarani postfix/smtpd[19868]: warning: unknown[190.29.31.244]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:27 guarani postfix/smtpd[19533]: warning: ns01.execplan.com.br[201.7.115.90]: SASL LOGIN authentication failed: authentication failure Apr 8 16:01:28 guarani postfix/smtpd[19861]: warning: 189-041-31-106.xd- dynamic.ctbcnetsuper.com.br[189.41.31.106]: SASL LOGIN authentication failed: authentication failure -- Quam minimum credula postero, carpe diem []s Bali - Alexandre Balistrieri _______________________________________________ Postfix-BR mailing list Postfix-BR@listas.softwarelivre.org http://listas.softwarelivre.org/mailman/listinfo/postfix-br
