Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
I know there is /var/log/messages for looging the system error , as we have many servers , and some data in the log is duplicated , it seems time consuming to check regularly , is there any way to extract the important error from the log rather than check it frequently ?
Probably I misunderstood, but you will never be sure what will be logged, so you cannot filter important messages before they arrived. Most of those messages will only important in case of a trouble. If you have a lot of annoying messages you may try to lower the log levels of specific applications/daemons.
Well, if you're as worn out as I am from visiting 25 machines to grep|awk|sed|tail all the logs, you could implement an Elasticsearch+Logstash+Kibana (ELK) solution and just read them all in one place.
I forward only key files to a central server using rsyslog and use ELK to 'read' them on that same host.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.