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TMA-BIND-9.3

Configure a Logging Syslog Channel

Trung bìnhCấp 1Tự độngbind

Mô tả

The syslog option of the logging configuration allows specification of the syslog facility to send log events. A syslog channel should be configured with the value of daemon or other appropriate syslog facility. The default and general categories should be included and the severity level should be info or lower. The audit requires a logging channel with a syslog destination. The audit parses the effective configuration printed by named-checkconf -p (all include files resolved) from /etc/named.conf (RHEL; chroot /var/named/chroot is detected) or /etc/bind/named.conf (Debian/Ubuntu).

Cách kiểm tra

Phương pháp kiểm tra: Lệnh shell

shell
if [ -f /var/named/chroot/etc/named.conf ]; then out=$(named-checkconf -t /var/named/chroot -p /etc/named.conf 2>/dev/null) || exit 1
else conf=/etc/named.conf; [ -f "$conf" ] || conf=/etc/bind/named.conf
  out=$(named-checkconf -p "$conf" 2>/dev/null) || exit 1; fi
flat=$(printf '%s\n' "$out" | tr '\t\n' '  ' | tr -s ' ')
opts=$(printf '%s\n' "$out" | awk '/^options[ \t]*\{/{f=1} f{print} f&&/^\};/{exit}' | tr '\t\n' '  ' | tr -s ' ')
printf '%s\n' "$flat" | grep -Eq 'channel "?[^ ]+"? \{[^}]*[{; ]syslog( "?[a-z0-9]+"?)?;' && echo compliant || echo 'no logging syslog channel'
Đầu ra mong đợi
compliant

Cách khắc phục

Phương pháp khắc phục: Hướng dẫn hoặc bản vá hạ tầng

Configure a syslog channel to capture at least the default and general categories of log events. For external authoritative name servers, the category lame-servers may be redirect to null, so that it is not logged. Using lame name servers is common for the domains used for SPAM and may overload the log with information that is not very useful. logging { . . . // Syslog channel default_syslog { syslog daemon; # send to syslog's daemon facility severity info; # only send priority info and higher }; category default { default_syslog; }; category general { default_syslog; }; // Too many lame servers, especially from SPAM category lame-servers { null; };

Thuộc tính

Hệ điều hành
Bất kỳ
Thẻ
binddnsoperations
Tham chiếu
CIS ISC BIND DNS Server 9.11 Benchmark v1.0.0 - 9.3 Configure a Logging Syslog Channel

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shell
tmaegis scan --target bind