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Different OS Kernel Update Frequency
Post 302555822 by majid.merkava on Thursday 15th of September 2011 05:25:49 PM
09-15-2011
Quote:
Disclaimer: I can only attest for the Linux side of things here.
First of all, 3 to 6 months isn't that long of an uptime, as I've seen systems with 2+ years. And with the distributions you've listed there won't be any major kernel updates in that time, save important security updates, and even those don't force a reboot (but the new kernel will only be used after a reboot). If you really need high availability, better to look into proper redundancy by setting up a cluster, where a second node can easily take over should the primary suffer a hardware defect.
First of all, 3 to 6 months isn't that long of an uptime, as I've seen systems with 2+ years. And with the distributions you've listed there won't be any major kernel updates in that time, save important security updates, and even those don't force a reboot (but the new kernel will only be used after a reboot). If you really need high availability, better to look into proper redundancy by setting up a cluster, where a second node can easily take over should the primary suffer a hardware defect.
. On my home server I use CentOS but i see that there is a kernel update each month. Should I reboot each time? Where could I find information about each update. Is it a security or a normal and I can postpone reboot.|
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LEARN ABOUT CENTOS
doveadm-instance
DOVEADM-INSTANCE(1) Dovecot DOVEADM-INSTANCE(1) NAME
doveadm-instance - Manage the list of running Dovecot instances SYNOPSIS
doveadm [-Dv] [-f formatter] instance list doveadm [-Dv] instance remove name | base_dir DESCRIPTION
The doveadm instance commands are used to manage the list of Dovecot instances running on the server. In most installations there is only one Dovecot instance, but in some cases is may be useful to have more (e.g. running director proxy and backend in the same server). Instances are added to the list automatically when Dovecot is started. Each instance is uniquely identified by its base_dir setting. Instances can be named by setting instance_name in each instance's dovecot.conf. When an instance is named, it can be accessed easily by giving -i instance_name command line parameter for Dovecot binaries (e.g. doveadm). OPTIONS
Global doveadm(1) options: -D Enables verbosity and debug messages. -f formatter Specifies the formatter for formatting the output. Supported formatters are: flow prints each line with key=value pairs. pager prints each key: value pair on its own line and separates records with form feed character (^L). tab prints a table header followed by tab separated value lines. table prints a table header followed by adjusted value lines. -v Enables verbosity, including progress counter. ARGUMENTS
name The value of an instance's instance_name setting. base_dir The base directory of a Dovecot instance. COMMANDS
instance list doveadm instance list This command lists the seen Dovecot instances. instance remove doveadm instance remove name | base_dir This command removes the specified instance. REPORTING BUGS
Report bugs, including doveconf -n output, to the Dovecot Mailing List <dovecot@dovecot.org>. Information about reporting bugs is avail- able at: http://dovecot.org/bugreport.html SEE ALSO
doveadm(1) Dovecot v2.2 2012-02-16 DOVEADM-INSTANCE(1)