In trying to resolve a problem with a cron job, we can see when the job starts by looking in the /var/log/cron log file. However, I was asked if when the job ends could also be logged. (It seems to be something that crops up every so often over the years..
Author : John Horne
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I was looking at a process through the /proc file system, and came across a process name which seemed to contain a hex value:lrwxrwxrwx. 1 xymon xymon 0 Aug2 14:07 /proc/58032/exe ->/usr/sbin/xymond;5d44410e (deleted)I am aware of what the deleted p..
For many years we have modified the /etc/named.conf file to include local settings. The disadvantage with this is of course that when bind is updated, it creates an /etc/named.conf.rpmnew file. We then have to determine what is new, and apply the relev..
I have just installed CentOS 7 onto two servers and applied all the current patches. There are currently two kernels installed:# rpm -q kernel kernel-3.10.0-123.el7.x86_64kernel-3.10.0-123.9.3.el7.x86_64However, if I reboot the servers they both st..
We are using CentOS 6.6 and keepalived 1.2.13 on two servers for failover, no load-balancing. Failover is governed by the NIC being present, and the Apache and Tomcat processes being present. Both servers are configured as EQUAL (not master/backu..
We have MySQL running as a master which is replicating to a single slave server. We are, however, considering what is required when a disasterof some sort happens to either server. By disaster, this could be some event which requires the entire ser..
A very late reply – yes we use it in conjunction with iptables (on CentOS 5/6 and Fedora). Tcp_wrappers allows filtering based on DNS name, which (as far as I am aware) iptables does not. It is very easy to configure, and takes immediate effect (no restart..
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