Em 13/10/2011 18:30, Rodrigo Mosconi escreveu: > Em 13 de outubro de 2011 17:02, Marcelo Gondim<gon...@bsdinfo.com.br> > escreveu: >> Pessoal, >> >> Hoje aconteceu algo estranho aqui no Firewall, algo que não havia >> percebido antes mas que pode estar relacionado com a falta de >> performance em algumas ocasiões. >> Do nada o acesso aos servidores ficaram com muita perda e todos eles >> passam pelo Firewall. Envio e consulta de e-mails travando e tal. >> >> Quando me loguei no Firewall e tentei pingar alguns lugares tanto >> externos quanto na minha própria rede local algumas vezes pingava e >> outras aparecia a mensagem abaixo: >> >> ping: sendto: Operation not permitted >> >> Essa mensagem aparecia algumas vezes como resposta do ping e logo em >> seguida continuava à pingar normal. >> >> Não vi nada no dmesg e nem no messages relacionado à esse problema e >> procurando na sysctl não vi nenhum limite no icmp: >> >> (root@seca)[~]# sysctl -a|grep icmp >> net.inet.icmp.maskrepl: 0 >> net.inet.icmp.icmplim: 0 >> net.inet.icmp.bmcastecho: 0 >> net.inet.icmp.quotelen: 8 >> net.inet.icmp.reply_from_interface: 0 >> net.inet.icmp.reply_src: >> net.inet.icmp.icmplim_output: 0 >> net.inet.icmp.log_redirect: 0 >> net.inet.icmp.drop_redirect: 1 >> net.inet.icmp.maskfake: 0 >> net.inet.tcp.icmp_may_rst: 1 >> net.inet6.icmp6.rediraccept: 1 >> net.inet6.icmp6.redirtimeout: 600 >> net.inet6.icmp6.nd6_prune: 1 >> net.inet6.icmp6.nd6_delay: 5 >> net.inet6.icmp6.nd6_umaxtries: 3 >> net.inet6.icmp6.nd6_mmaxtries: 3 >> net.inet6.icmp6.nd6_useloopback: 1 >> net.inet6.icmp6.nodeinfo: 3 >> net.inet6.icmp6.errppslimit: 100 >> net.inet6.icmp6.nd6_maxnudhint: 0 >> net.inet6.icmp6.nd6_debug: 0 >> net.inet6.icmp6.nd6_maxqueuelen: 1 >> net.inet6.icmp6.nd6_onlink_ns_rfc4861: 0 >> >> Tentei no google e achei algumas coisas vagas relacionadas ao PF. O fato >> é que após um reboot do Firewall tudo normalizou. >> Alguém tem alguma idéia? O estranho é que o sistema se desestabilizou >> todo e só com um reboot que voltou à funcionar. Depois vi que podia ter >> feito um disable no PF pra ver se ele era o causador mas já havia >> re-iniciado o sistema. Próxima vez tentarei isso antes. >> >> []´s à todos >> ------------------------- >> Histórico: http://www.fug.com.br/historico/html/freebsd/ >> Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd >> > sysctl net.inet? > Opa Rodrigo,
O tráfego nesse Firewall é de 160 à 200Mbps. O Firewall está stateless no forward dos pacotes. net.inet.ip.portrange.randomtime: 45 net.inet.ip.portrange.randomcps: 10 net.inet.ip.portrange.randomized: 1 net.inet.ip.portrange.reservedlow: 0 net.inet.ip.portrange.reservedhigh: 1023 net.inet.ip.portrange.hilast: 65535 net.inet.ip.portrange.hifirst: 49152 net.inet.ip.portrange.last: 65535 net.inet.ip.portrange.first: 10000 net.inet.ip.portrange.lowlast: 600 net.inet.ip.portrange.lowfirst: 1023 net.inet.ip.forwarding: 1 net.inet.ip.redirect: 0 net.inet.ip.ttl: 64 net.inet.ip.rtexpire: 3600 net.inet.ip.rtminexpire: 10 net.inet.ip.rtmaxcache: 128 net.inet.ip.sourceroute: 0 net.inet.ip.intr_queue_maxlen: 256 net.inet.ip.intr_queue_drops: 0 net.inet.ip.accept_sourceroute: 0 net.inet.ip.keepfaith: 0 net.inet.ip.gifttl: 30 net.inet.ip.same_prefix_carp_only: 0 net.inet.ip.subnets_are_local: 0 net.inet.ip.random_id_total: 0 net.inet.ip.random_id_collisions: 0 net.inet.ip.random_id_period: 8192 net.inet.ip.mcast.loop: 1 net.inet.ip.mcast.maxsocksrc: 128 net.inet.ip.mcast.maxgrpsrc: 512 net.inet.ip.dummynet.io_pkt_drop: 0 net.inet.ip.dummynet.io_pkt_fast: 0 net.inet.ip.dummynet.io_pkt: 0 net.inet.ip.dummynet.queue_count: 0 net.inet.ip.dummynet.fsk_count: 0 net.inet.ip.dummynet.si_count: 0 net.inet.ip.dummynet.schk_count: 0 net.inet.ip.dummynet.tick_lost: 0 net.inet.ip.dummynet.tick_diff: -1704 net.inet.ip.dummynet.tick_adjustment: 47142177 net.inet.ip.dummynet.tick_delta_sum: 84 net.inet.ip.dummynet.tick_delta: 666 net.inet.ip.dummynet.red_max_pkt_size: 1500 net.inet.ip.dummynet.red_avg_pkt_size: 512 net.inet.ip.dummynet.red_lookup_depth: 256 net.inet.ip.dummynet.expire_cycle: 0 net.inet.ip.dummynet.expire: 1 net.inet.ip.dummynet.debug: 0 net.inet.ip.dummynet.io_fast: 0 net.inet.ip.dummynet.pipe_byte_limit: 1048576 net.inet.ip.dummynet.pipe_slot_limit: 100 net.inet.ip.dummynet.hash_size: 64 net.inet.ip.fastforwarding: 1 net.inet.ip.fw.static_count: 1 net.inet.ip.fw.default_to_accept: 1 net.inet.ip.fw.tables_max: 128 net.inet.ip.fw.default_rule: 65535 net.inet.ip.fw.verbose_limit: 100 net.inet.ip.fw.verbose: 1 net.inet.ip.fw.autoinc_step: 100 net.inet.ip.fw.one_pass: 1 net.inet.ip.fw.dyn_keepalive: 1 net.inet.ip.fw.dyn_short_lifetime: 10 net.inet.ip.fw.dyn_udp_lifetime: 10 net.inet.ip.fw.dyn_rst_lifetime: 1 net.inet.ip.fw.dyn_fin_lifetime: 2 net.inet.ip.fw.dyn_syn_lifetime: 10 net.inet.ip.fw.dyn_ack_lifetime: 120 net.inet.ip.fw.dyn_max: 65536 net.inet.ip.fw.dyn_count: 0 net.inet.ip.fw.curr_dyn_buckets: 256 net.inet.ip.fw.dyn_buckets: 65536 net.inet.ip.fw.enable: 1 net.inet.ip.maxfragpackets: 2080 net.inet.ip.stealth: 0 net.inet.ip.maxfragsperpacket: 16 net.inet.ip.fragpackets: 1 net.inet.ip.check_interface: 0 net.inet.ip.random_id: 0 net.inet.ip.sendsourcequench: 0 net.inet.ip.process_options: 1 net.inet.ip.alias.sctp.track_global_addresses: 0 net.inet.ip.alias.sctp.param_proc_limit: 25 net.inet.ip.alias.sctp.chunk_proc_limit: 5 net.inet.ip.alias.sctp.initialising_chunk_proc_limit: 2 net.inet.ip.alias.sctp.accept_global_ootb_addip: 0 net.inet.ip.alias.sctp.error_on_ootb: 1 net.inet.ip.alias.sctp.hashtable_size: 2003 net.inet.ip.alias.sctp.holddown_timer: 0 net.inet.ip.alias.sctp.shutdown_timer: 15 net.inet.ip.alias.sctp.up_timer: 300 net.inet.ip.alias.sctp.init_timer: 15 net.inet.ip.alias.sctp.log_level: 0 net.inet.icmp.maskrepl: 0 net.inet.icmp.icmplim: 0 net.inet.icmp.bmcastecho: 0 net.inet.icmp.quotelen: 8 net.inet.icmp.reply_from_interface: 0 net.inet.icmp.reply_src: net.inet.icmp.icmplim_output: 0 net.inet.icmp.log_redirect: 0 net.inet.icmp.drop_redirect: 1 net.inet.icmp.maskfake: 0 net.inet.igmp.gsrdelay: 10 net.inet.igmp.default_version: 3 net.inet.igmp.legacysupp: 0 net.inet.igmp.v2enable: 1 net.inet.igmp.v1enable: 1 net.inet.igmp.sendlocal: 1 net.inet.igmp.sendra: 1 net.inet.igmp.recvifkludge: 1 net.inet.ipip.ipip_allow: 0 net.inet.tcp.rfc1323: 1 net.inet.tcp.mssdflt: 512 net.inet.tcp.keepidle: 7200000 net.inet.tcp.keepintvl: 75000 net.inet.tcp.sendspace: 32768 net.inet.tcp.recvspace: 65536 net.inet.tcp.keepinit: 75000 net.inet.tcp.delacktime: 100 net.inet.tcp.v6mssdflt: 1024 net.inet.tcp.hostcache.purge: 0 net.inet.tcp.hostcache.prune: 300 net.inet.tcp.hostcache.expire: 3600 net.inet.tcp.hostcache.count: 14 net.inet.tcp.hostcache.bucketlimit: 30 net.inet.tcp.hostcache.hashsize: 512 net.inet.tcp.hostcache.cachelimit: 15360 net.inet.tcp.read_locking: 1 net.inet.tcp.recvbuf_max: 262144 net.inet.tcp.recvbuf_inc: 16384 net.inet.tcp.recvbuf_auto: 1 net.inet.tcp.insecure_rst: 0 net.inet.tcp.ecn.maxretries: 1 net.inet.tcp.ecn.enable: 0 net.inet.tcp.abc_l_var: 2 net.inet.tcp.rfc3465: 1 net.inet.tcp.rfc3390: 1 net.inet.tcp.rfc3042: 1 net.inet.tcp.drop_synfin: 1 net.inet.tcp.delayed_ack: 1 net.inet.tcp.blackhole: 0 net.inet.tcp.log_in_vain: 0 net.inet.tcp.sendbuf_max: 262144 net.inet.tcp.sendbuf_inc: 8192 net.inet.tcp.sendbuf_auto: 1 net.inet.tcp.tso: 1 net.inet.tcp.newreno: 1 net.inet.tcp.local_slowstart_flightsize: 4 net.inet.tcp.slowstart_flightsize: 1 net.inet.tcp.path_mtu_discovery: 1 net.inet.tcp.reass.overflows: 0 net.inet.tcp.reass.cursegments: 0 net.inet.tcp.reass.maxsegments: 4200 net.inet.tcp.sack.globalholes: 0 net.inet.tcp.sack.globalmaxholes: 65536 net.inet.tcp.sack.maxholes: 128 net.inet.tcp.sack.enable: 1 net.inet.tcp.signature_verify_input: 1 net.inet.tcp.inflight.stab: 20 net.inet.tcp.inflight.max: 1073725440 net.inet.tcp.inflight.min: 6144 net.inet.tcp.inflight.rttthresh: 10 net.inet.tcp.inflight.debug: 0 net.inet.tcp.inflight.enable: 0 net.inet.tcp.isn_reseed_interval: 0 net.inet.tcp.icmp_may_rst: 1 net.inet.tcp.pcbcount: 16 net.inet.tcp.do_tcpdrain: 1 net.inet.tcp.tcbhashsize: 512 net.inet.tcp.log_debug: 0 net.inet.tcp.minmss: 216 net.inet.tcp.syncache.rst_on_sock_fail: 1 net.inet.tcp.syncache.rexmtlimit: 3 net.inet.tcp.syncache.hashsize: 512 net.inet.tcp.syncache.count: 0 net.inet.tcp.syncache.cachelimit: 15360 net.inet.tcp.syncache.bucketlimit: 30 net.inet.tcp.syncookies_only: 0 net.inet.tcp.syncookies: 1 net.inet.tcp.timer_race: 0 net.inet.tcp.finwait2_timeout: 60000 net.inet.tcp.fast_finwait2_recycle: 0 net.inet.tcp.always_keepalive: 1 net.inet.tcp.rexmit_slop: 200 net.inet.tcp.rexmit_min: 30 net.inet.tcp.msl: 3000 net.inet.tcp.nolocaltimewait: 0 net.inet.tcp.maxtcptw: 13312 net.inet.udp.checksum: 1 net.inet.udp.maxdgram: 9216 net.inet.udp.recvspace: 42080 net.inet.udp.blackhole: 0 net.inet.udp.log_in_vain: 0 net.inet.esp.esp_enable: 1 net.inet.ah.ah_cleartos: 1 net.inet.ah.ah_enable: 1 net.inet.ipcomp.ipcomp_enable: 1 net.inet.carp.allow: 1 net.inet.carp.preempt: 0 net.inet.carp.log: 1 net.inet.carp.arpbalance: 0 net.inet.carp.suppress_preempt: 0 net.inet.ipsec.def_policy: 1 net.inet.ipsec.esp_trans_deflev: 1 net.inet.ipsec.esp_net_deflev: 1 net.inet.ipsec.ah_trans_deflev: 1 net.inet.ipsec.ah_net_deflev: 1 net.inet.ipsec.ah_cleartos: 1 net.inet.ipsec.ah_offsetmask: 0 net.inet.ipsec.dfbit: 0 net.inet.ipsec.ecn: 0 net.inet.ipsec.debug: 0 net.inet.ipsec.filtertunnel: 0 net.inet.ipsec.crypto_support: 50331648 net.inet.raw.recvspace: 9216 net.inet.raw.maxdgram: 9216 net.inet.accf.unloadable: 0 net.inet.accf.http.parsehttpversion: 1 ------------------------- Histórico: http://www.fug.com.br/historico/html/freebsd/ Sair da lista: https://www.fug.com.br/mailman/listinfo/freebsd
