URL: https://linuxfr.org/forums/linux-general/posts/syslog-ng-et-iptables Title: Syslog-ng et iptables Authors: WaVeR Date: 2004年10月21日T16:57:27+02:00 Tags: Score: 0 Bonjour, J'ai un soucis avec syslog-ng et mes logs iptables, non seulement syslog-ng destine les logs vers /var/log/firewall mais je les trouve aussi dans ma console et à la sortie de la commande dmesg malgré un dmesg -n 1. J'ai essayé tout les niveaux (info, warning, ...) de log et c'est tjrs le même résultat. :o ma règle iptables: iptables -A INPUT -m state --state INVALID -m limit --limit 3/s -j LOG --log-tcp-option --log-ip-options --log-level warning --log-prefix "## INVALID INPUT ## " mon fichier de conf syslog-ng.conf: # # Configuration file for syslog-ng under Debian # # attempts at reproducing default syslog behavior # the standard syslog levels are (in descending order of priority): # emerg alert crit err warning notice info debug # the aliases "error", "panic", and "warn" are deprecated # the "none" priority found in the original syslogd configuration is # only used in internal messages created by syslogd ###### # options options { # long_hostnames(0); # the time to wait before a died connection is re-established # (default is 60) time_reopen(10); # the time to wait before an idle destination file is closed # (default is 60) time_reap(360); # the number of lines buffered before written to file # you might want to increase this if your disk isn't catching with # all the log messages you get or if you want less disk activity # (say on a laptop) # (default is 0) #sync(0); # the number of lines fitting in the output queue log_fifo_size(2048); # enable or disable directory creation for destination files create_dirs(yes); # default owner, group, and permissions for log files # (defaults are 0, 0, 0600) #owner(root); group(adm); perm(0640); # default owner, group, and permissions for created directories # (defaults are 0, 0, 0700) #dir_owner(root); #dir_group(root); dir_perm(0755); # enable or disable DNS usage # syslog-ng blocks on DNS queries, so enabling DNS may lead to # a Denial of Service attack # (default is yes) use_dns(no); # maximum length of message in bytes # this is only limited by the program listening on the /dev/log Unix # socket, glibc can handle arbitrary length log messages, but -- for # example -- syslogd accepts only 1024 bytes # (default is 2048) #log_msg_size(2048); }; ###### # sources # all known message sources source s_all { # message generated by Syslog-NG internal(); # standard Linux log source (this is the default place for the syslog() # function to send logs to) unix-stream("/dev/log"); # messages from the kernel file("/proc/kmsg" log_prefix("kernel: ")); # use the above line if you want to receive remote UDP logging messages # (this is equivalent to the "-r" syslogd flag) # udp(); }; ###### # destinations # some standard log files destination df_auth { file("/var/log/auth.log"); }; destination df_syslog { file("/var/log/syslog"); }; destination df_cron { file("/var/log/cron.log"); }; destination df_daemon { file("/var/log/daemon.log"); }; destination df_kern { file("/var/log/kern.log"); }; destination df_lpr { file("/var/log/lpr.log"); }; destination df_mail { file("/var/log/mail.log"); }; destination df_user { file("/var/log/user.log"); }; destination df_uucp { file("/var/log/uucp.log"); }; destination df_firewall { file("/var/log/firewall/firewall.log"); }; destination df_pureftpd { file("/var/log/pure-ftpd/ftp.log"); }; destination df_spamd { file("/var/log/spam/spam.log"); }; destination df_ssh { file("/var/log/ssh/ssh.log"); }; # these files are meant for the mail and news systems log files # and provide re-usable destinations for {mail,news,...}.info, # {mail,news,...}.notice, etc. destination df_facility_dot_info { file("/var/log/$FACILITY.info"); }; destination df_facility_dot_notice { file("/var/log/$FACILITY.notice"); }; destination df_facility_dot_warn { file("/var/log/$FACILITY.warn"); }; destination df_facility_dot_err { file("/var/log/$FACILITY.err"); }; destination df_facility_dot_crit { file("/var/log/$FACILITY.crit"); }; # some more classical and useful files found in standard syslog configurations destination df_debug { file("/var/log/debug"); }; destination df_messages { file("/var/log/messages"); }; # pipes # a console to view log messages under X destination dp_xconsole { pipe("/dev/xconsole"); }; # consoles # this will send messages to everyone logged in destination du_all { usertty("*"); }; ###### # filters # all messages from the auth and authpriv facilities filter f_auth { facility(auth, authpriv); }; # all messages except from the auth and authpriv facilities filter f_syslog { not facility(auth, authpriv) and not match(".*IN=.*OUT=.*MAC=.*") and not match("## Identd ## ") and not match("pure-ftpd") and not match("spamd"); }; # respectively: messages from the cron, daemon, kern, lpr, mail, news, user, # and uucp facilities filter f_cron { facility(cron); }; filter f_daemon { facility(daemon); }; filter f_kern { facility(kern) and not match(".*IN=.*OUT=.*MAC=.*") and not match("## Identd ## ") and not match("pure-ftpd") and not match("spamd"); }; filter f_lpr { facility(lpr); }; filter f_mail { facility(mail); }; filter f_news { facility(news); }; filter f_user { facility(user); }; filter f_uucp { facility(uucp); }; # some filters to select messages of priority greater or equal to info, warn, # and err # (equivalents of syslogd's *.info, *.warn, and *.err) filter f_at_least_info { level(info..emerg); }; filter f_at_least_notice { level(notice..emerg); }; filter f_at_least_warn { level(warn..emerg); }; filter f_at_least_err { level(err..emerg); }; filter f_at_least_crit { level(crit..emerg); }; # all messages of priority debug not coming from the auth, authpriv, news, and # mail facilities filter f_debug { level(debug) and not facility(auth, authpriv, news, mail); }; # all messages of info, notice, or warn priority not coming form the auth, # authpriv, cron, daemon, mail, and news facilities filter f_messages { level(info,notice,warn) and not facility(auth,authpriv,cron,daemon,mail,news)and not match (".*IN=.*OUT=.*MAC=.*") and not match ("pure-ftpd*") and not match("spamd*") and not match("syslog-ng*:*STATS:*dropped"); }; # messages with priority emerg filter f_emerg { level(emerg); }; # complex filter for messages usually sent to the xconsole filter f_xconsole { facility(daemon,mail) or level(debug,info,notice,warn) or (facility(news) and level(crit,err,notice)); }; filter f_iptables { match(".*IN=.*OUT=.*MAC=.*"); }; filter f_pureftpd { match("pure-ftpd*"); }; filter f_spamd { match("spamd*"); }; filter f_ssh { match("sshd*"); }; ###### # logs # order matters if you use "flags(final);" to mark the end of processing in a # "log" statement # these rules provide the same behavior as the commented original syslogd rules # auth,authpriv.* /var/log/auth.log log { source(s_all); filter(f_auth); destination(df_auth); }; # *.*;auth,authpriv.none -/var/log/syslog log { source(s_all); filter(f_syslog); destination(df_syslog); }; # this is commented out in the default syslog.conf # cron.* /var/log/cron.log #log { # source(s_all); # filter(f_cron); # destination(df_cron); #}; # daemon.* -/var/log/daemon.log log { source(s_all); filter(f_daemon); destination(df_daemon); }; # kern.* -/var/log/kern.log log { source(s_all); filter(f_kern); destination(df_kern); }; # lpr.* -/var/log/lpr.log log { source(s_all); filter(f_lpr); destination(df_lpr); }; # mail.* -/var/log/mail.log log { source(s_all); filter(f_mail); destination(df_mail); }; # user.* -/var/log/user.log log { source(s_all); filter(f_user); destination(df_user); }; # uucp.* /var/log/uucp.log log { source(s_all); filter(f_uucp); destination(df_uucp); }; # mail.info -/var/log/mail.info log { source(s_all); filter(f_mail); filter(f_at_least_info); destination(df_facility_dot_info); }; # mail.warn -/var/log/mail.warn log { source(s_all); filter(f_mail); filter(f_at_least_warn); destination(df_facility_dot_warn); }; # mail.err /var/log/mail.err log { source(s_all); filter(f_mail); filter(f_at_least_err); destination(df_facility_dot_err); }; # news.crit /var/log/news/news.crit log { source(s_all); filter(f_news); filter(f_at_least_crit); destination(df_facility_dot_crit); }; # news.err /var/log/news/news.err log { source(s_all); filter(f_news); filter(f_at_least_err); destination(df_facility_dot_err); }; # news.notice /var/log/news/news.notice log { source(s_all); filter(f_news); filter(f_at_least_notice); destination(df_facility_dot_notice); }; # *.=debug;\ # auth,authpriv.none;\ # news.none;mail.none -/var/log/debug log { source(s_all); filter(f_debug); destination(df_debug); }; # *.=info;*.=notice;*.=warn;\ # auth,authpriv.none;\ # cron,daemon.none;\ # mail,news.none -/var/log/messages log { source(s_all); filter(f_messages); destination(df_messages); }; # *.emerg * log { source(s_all); filter(f_emerg); destination(du_all); }; # daemon.*;mail.*;\ # news.crit;news.err;news.notice;\ # *.=debug;*.=info;\ # *.=notice;*.=warn |/dev/xconsole log { source(s_all); filter(f_xconsole); destination(dp_xconsole); }; # Firewall log { source(s_all); filter(f_iptables); destination(df_firewall); }; # FTP log { source(s_all); filter(f_pureftpd); destination(df_pureftpd); }; # Spam log { source(s_all); filter(f_spamd); destination(df_spamd); }; # SSH log { source(s_all); filter(f_ssh); destination(df_ssh); }; Qlq a une solution :o

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