Ubuntu 14.04.6无常规系统日志message日志

admin

Ubuntu 14.04.6无常规系统日志message日志
8 v  f$ r# G8 a4 X: P5 V1 iroot@controller:~# cd /var/log/
; E$ q# V3 J" yroot@controller:/var/log# ls
) U3 x1 f0 {6 O, Y: salternatives.log  boot.log       chrony        dmesg.0     dmesg.3.gz  faillog    kern.log   syslog                unattended-upgrades
apt               bootstrap.log  dist-upgrade  dmesg.1.gz  dmesg.4.gz  fsck       landscape  ubuntu-advantage.log  upstart
4 |& ?. w/ p6 @0 w4 ?auth.log          btmp           dmesg         dmesg.2.gz  dpkg.log    installer  lastlog    udev                  wtmp
8 \( X. Z5 `0 p# n* _- G
默认没有系统日志，和centos系统还是有些区别。
通过网页搜索，显示ubuntu系统默认不开启系统日志。
因为在 /etc/rsyslog.d/50-default.conf 文件中，将其注释掉了
7 m, I5 A" x( l8 h5 Wcat /etc/rsyslog.d/50-default.conf
/ z! x" Z) s: ]% m: q0 K% S* C#  Default rules for rsyslog.
2 c$ y% v+ s+ }! r#
& p4 x: C+ _$ Y: R- v3 w9 w% T4 E#   For more information see rsyslog.conf(5) and /etc/rsyslog.conf
#
0 X  Y- F) X; s# First some standard log files.  Log by facility.
6 _" |) \9 |2 a2 G#
auth,authpriv.*   /var/log/auth.log
*.*;auth,authpriv.none  -/var/log/syslog
#cron.*    /var/log/cron.log
#daemon.*   -/var/log/daemon.log
' Q; v5 i/ l. T4 ]* Q9 F1 K2 Akern.*    -/var/log/kern.log
#lpr.*    -/var/log/lpr.log
mail.*    -/var/log/mail.log
2 C4 w- E6 D, I$ v  `#user.*    -/var/log/user.log
& U4 q8 a  J$ W5 c2 G9 t# O# {3 y4 L! R+ a#
% I. j# l3 q& u6 w% u9 _- e# Logging for the mail system.  Split it up so that
! a5 @+ `" Y* M1 V* v. Q5 r- O# it is easy to write scripts to parse these files.
2 u( h$ l  v, E% |* l#
#mail.info   -/var/log/mail.info
#mail.warn   -/var/log/mail.warn
- r# f" p6 ?$ H. K' I0 J( j2 jmail.err   /var/log/mail.err
#
3 g5 w% H1 f, Q1 _9 `  v# Logging for INN news system.
#
news.crit   /var/log/news/news.crit
# ^' L. A5 A  knews.err   /var/log/news/news.err
news.notice   -/var/log/news/news.notice
#
# Some "catch-all" log files.
( Q* A. j1 i4 V" ~# M8 I#
9 U' t6 {& E- |$ q#*.=debug;\
9 P0 Q5 d2 ?( ~9 \4 M3 M5 t1 z# auth,authpriv.none;\
# news.none;mail.none -/var/log/debug
5 H4 J% ]" i) D2 h- q; |#*.=info;*.=notice;*.=warn;\
# auth,authpriv.none;\
# cron,daemon.none;\
# mail,news.none  -/var/log/messages
9 W* A" F2 V5 E# s#
# Emergencies are sent to everybody logged in.
, _# T1 g2 a& a7 o2 v$ ~; [. g#
*.emerg                                :omusrmsg:*
9 f9 k. R$ U/ k- e" p. F4 n: |& b#
# I like to have messages displayed on the console, but only on a virtual
$ L% Z  s4 ~- w# console I usually leave idle.
2 y/ b: g: l  n  r#
#daemon,mail.*;\
# news.=crit;news.=err;news.=notice;\
: {$ X7 [# g) w3 g& l. `# r5 k& O# *.=debug;*.=info;\
# *.=notice;*.=warn /dev/tty8
# The named pipe /dev/xconsole is for the `xconsole' utility.  To use it,
# you must invoke `xconsole' with the `-file' option:
: q( b' e# q& b  }: Q$ F+ b& j#
. ]4 ~  ^% E' ^; C! T& o+ i/ a#    $ xconsole -file /dev/xconsole [...]
#
# NOTE: adjust the list below, or you'll go crazy if you have a reasonably
#      busy site..
, Q' j3 _- W: i; T8 B#
. D9 G8 z( L2 `  xdaemon.*;mail.*;\
. N4 l  s. Y' W9 n news.err;\
# X& d1 i. G5 P- J *.=debug;*.=info;\
6 i) J: k! {* [9 v0 J. w( R *.=notice;*.=warn |/dev/xconsole
, Z+ g) l) ]4 p! E& M" d解决办法：
' ?( K1 X% k# I$ ]5 Z所以需修改该配置文件，将注释放开。
/ @+ q* L5 _5 S; h, F- Kroot@controller:/var/log# vim /etc/rsyslog.d/50-default.conf

# Some "catch-all" log files.
: X" I- a0 l# T! f- X#
& p- r2 _/ J# Q" ?# f8 T*.=debug;\
        auth,authpriv.none;\
" Q8 w: v+ `' O" Q, m        news.none;mail.none     -/var/log/debug
, f9 X3 J8 C/ e7 R* l*.=info;*.=notice;*.=warn;\
        auth,authpriv.none;\
        cron,daemon.none;\
        mail,news.none          -/var/log/messages

" K6 P0 ^6 M2 m' U然后重启rsyslog服务即可：
: T) b, l3 z+ ^2 H# F+ ^  [3 }
root@controller:/var/log# service rsyslog restart
rsyslog stop/waiting
5 H& B% L' ~7 x5 }6 ~7 ~% trsyslog start/running, process 74907


) |6 O4 O+ k& }  Z4 R4 ]& m/ E& O1 |再次查看，就有日志了：
root@controller:/var/log# ls
alternatives.log  boot.log       chrony        dmesg.0     dmesg.3.gz  faillog    kern.log   messages              udev                 wtmp
apt               bootstrap.log  dist-upgrade  dmesg.1.gz  dmesg.4.gz  fsck       landscape  syslog                unattended-upgrades
auth.log          btmp           dmesg         dmesg.2.gz  dpkg.log    installer  lastlog    ubuntu-advantage.log  upstart
root@controller:/var/log#

' p! M2 V+ y" f
问题解决。

# F/ r) |) t( j  l  N0 H2 N5 B: T