Print the first 5 log lines from each day in syslog

By OK -
[root@localhost docker_private_registry]# awk 'a[$1 $2]++ <5' /var/log/messages
Nov  5 10:31:01 localhost rsyslogd: [origin software="rsyslogd" swVersion="7.4.7" x-pid="1208" x-info="http://www.rsyslog.com"] rsyslogd was HUPed
Nov  5 10:34:30 localhost dhclient[10416]: DHCPREQUEST on ens33 to 192.168.184.254 port 67 (xid=0x3cb327aa)
Nov  5 10:34:30 localhost dhclient[10416]: DHCPACK from 192.168.184.254 (xid=0x3cb327aa)
Nov  5 10:34:32 localhost dhclient[10416]: bound to 192.168.184.130 -- renewal in 794 seconds.
Nov  5 10:39:05 localhost dbus[778]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service'
Nov 11 12:21:41 localhost systemd: Time has been changed
Nov 11 12:21:41 localhost systemd: Starting Docker Cleanup...
Nov 11 12:21:41 localhost systemd: Started Docker Cleanup.
Nov 11 12:21:41 localhost systemd: Starting LSB: Bring up/down networking...
Nov 11 12:21:41 localhost journal: 2017-11-11 17:21:41,830 [myid:] - INFO  [SessionTracker:ZooKeeperServer@358] - Expiring session 0x15f8e16d60f0000, timeout of 10000ms exceeded
Nov 12 05:32:12 localhost systemd: Time has been changed
Nov 12 05:32:12 localhost systemd: Starting Docker Cleanup...
Nov 12 05:32:13 localhost systemd: Started Docker Cleanup.
Nov 12 05:32:14 localhost systemd: Starting LSB: Bring up/down networking...
Nov 12 05:32:15 localhost network: Bringing up loopback interface:  [  OK  ]
[root@localhost docker_private_registry]#

Comments

Post a Comment

Popular posts from this blog

HAproxy logging

By OK -
ubuntu@ubuntu:/etc/haproxy$ cat /etc/rsyslog.d/haproxy.conf # Create an additional socket in haproxy's chroot in order to allow logging via # /dev/log to chroot'ed HAProxy processes $ModLoad imudp $UDPServerRun 514 local0.* -/var/log/haproxy-0.log local1.* -/var/log/haproxy-1.log ### keep logs in localhost ## $AddUnixListenSocket /var/lib/haproxy/dev/log ------------------- ubuntu@ubuntu:/etc/haproxy$ cat /etc/haproxy/haproxy.cfg global chroot /var/lib/haproxy user haproxy group haproxy log 127.0.0.1   local0         log 127.0.0.1   local1 notice daemon frontend www     bind 192.168.40.128:8282    # haproxy public IP     default_backend as-backend    # backend used backend as-backend    balance leastconn    mode http  server as1 192.168.40.128:8082 check    # application srv 1 defaults log global mode http option httplog option dontlognull         contimeout 5000    
Read more

tomcat catalina coyote jasper cluster

By OK -
Tomcat Component are Catalina Coyote Jasper Cluster Catalina :  Catalina is the name of the servlet container of Apache Tomcat since version 4.x. Tomcat implements Sun Microsystems' specifications for servlet and JavaServer Pages (JSP), which are important Java-based Web technologies. Tomcat's servlet container was redesigned as Catalina in Tomcat version 4.x. other components of the Tomcat engine are: Tomcat Jasper which converts the code portions within JavaServer Pages into servlets and pass them to Catalina to process. Tomcat Coyote which is an HTTP connector based on HTTP/1.1 specifications that receives and transmits web requests to the Tomcat engine by listening to a TCP/IP port and returns requests back to the requesting client. Coyote :  The Coyote JK Connector element represents a Connector component that communicates with a web connector via the JK protocol (also known as the AJP protocol). This is used for cases where you wish to invisibly integr
Read more

NFS mount add in fstab _netdev instead of default | firewall-cmd --list-all

By OK -
Redhat recommends us to add  _netdev  option for NFS file system in /etc/fstab. So that they can be mounted after starting the networking service. Alternative ways to refer to partitions: Label : LABEL=label Network ID Samba : //server/share NFS : server:/share SSHFS : sshfs#user@server:/share Device : /dev/sdxy (not recommended) Example #1 //192.168.1.134/share_name /mnt/share_name cifs username=server_user,password=server_password,_netdev 0 0 ^ Path to your share ^ Mountpoint ^ Username ^ Password ^ See note A Note A: The  _netdev  options makes sure the mount is only attempted AFTER a network connection has been established. Example #2 10.10.10.1:/vol1/fs1 /data nfs defaults,_netdev 0 0 ============================ [root@localhost ~]# firewall-cmd --list-all public   target: default   icmp-block-inversion: no   interfaces:   sources:   services: dhcpv6-client high-availability ssh   ports:   protocols:   masquera
Read more