similar to: ZFS Scrubbing (might be off topic)

I would like to set up a cron job to automatically check whether my mailserver and webserver are up, and tell me if they're not. This script tells me if my webserver is up: #!/bin/bash wget -q --tries=10 --timeout=20 --spider http://melvilletheatre.com if [[ $? -eq 0 ]]; then echo "Online" else echo "Offline" fi How can I do the something similar with my

A shell script is deployed to synchronize time, the script is invoked hourly by crontab, and its content is as follows: #!/bin/bash service ntpd stop ntpdate 192.168.0.191 #it's a valid ntpd server in LAN service ntpd start chkconfig ntpd on Inspected the Linux log(Centos6.4 /var/log/messages), found the following fragment: Jan 7 14:00:01 host1 ntpd[32101]: ntpd exiting on signal 15 Jan 7

Hi, I have a customized CentOS 5.5 kernel. I want it to upgrade it to CentOS 7. The approach I have decided was to take the CentOS 7 and then install the customized packages that are there in the CentOS 5.5. While trying to install the customized packages, I could install most of the packages, but I couldn't install the below in the latest CentOS 7. 1. rhpl 2. mod_perl 3.

centos-release.x86_64-7-0.1406.el7.centos.2.5 @updates zfs-release.noarch-1-2.el7.centos @/zfs-release.el7.noarch I am in the process of setting up a CentOS-7 workstation which, eventually, will be a kvm host for several versions of MS-Windows. Before I get to that point I wish to experiment with zfs. I have a couple of questions: Q1. Finding a good install tutorial for

> On Jan 6, 2015, at 5:50 PM, Les Mikesell <lesmikesell at gmail.com> wrote: > > On Tue, Jan 6, 2015 at 6:37 PM, Gary Greene <ggreene at minervanetworks.com> wrote: >> >> >> Almost every controller and drive out there now lies about what is and isn?t flushed to disk, making it nigh on impossible for the Kernel to reliably know 100% of the time that the

Hi, yesterday I implemented a simple hourly snapshot on my filesystems. I also regularly initiate a manual "zpool scrub" on all my pools. Usually the scrubbing will run for about 3 hours. But after enabling hourly snapshots I noticed that zfs scrub is always restarted if a new snapshot is created - so basically it will never have the chance to finish: # zpool scrub scratch # zpool

CentOS 6.4, clean install. Zimbra 8.0.3 I am behind a PfSense box using a virtual IP. So the IP of the box is 192.168.1.27 I entered this in /etc/hosts: 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.1.27 mail mail.meowbox.me meowbox.me but `hostname -f` says: $ hostname -f

If using the standard CentOS packages is there a way to print the options that were specified when the package was built? For example # rpm -qi at Name : at Relocations: (not relocatable) Version : 3.1.10 Vendor: CentOS Release : 44.el6_5.2 Build Date: Tue 07 Oct 2014 03:35:22 AM CDT Install Date: Fri 17 Oct

On 2/18/2015 9:39 PM, Chris Murphy wrote: > You might be a candidate for LVM integrated raid. It uses the md > kernel code on the backend, but it's all LVM tools to create, manage > and monitor. The raid level is defined per LV, instead of all LV's in > a VG inheriting the underlying raid. It supports all levels of raid > including 5/6. ... ... > ... > ... ... btrfs

We are a CentOS shop, and have the lucky, fortunate problem of having ever-increasing amounts of data to manage. EXT3/4 becomes tough to manage when you start climbing, especially when you have to upgrade, so we're contemplating switching to ZFS. As of last spring, it appears that ZFS On Linux http://zfsonlinux.org/ calls itself production ready despite a version number of 0.6.2, and

hey centos long time no hear! :) I'm having a small issue where the backup jobs that I set to run in the crontab of the backup user do not appear to be running. Here's how I set it up (with crontab -e as the backup user): run amanda every night (check at 2:45 and backup at 3) 45 2 * * * /usr/sbin/amcheck /var/log/amanda/crontab/amcheck.log * 3 * * * /usr/sbin/amdump

> Date: Thursday, July 20, 2017 02:25:52 +0000 > From: Richard <lists-centos at listmail.innovate.net> > >> Date: Wednesday, July 19, 2017 23:31:10 +0000 >> From: Chad Cordero <ccordero at csusb.edu> >> >> It?s being rejected before it even reaches the mailbox, so >> forwarding won?t work.? Crond should really be using the MAILTO >>

Folks My experiments with installing ZFS-FUSE in a Centos 6 system reveal behavior different from that observed in Centos 5.6. The version of ZFS-FUSE is that provided on the EPEL repository, and was installed on a 32-bit machine. I use it because of its deduplication facility. In Centos 5.6, the facility worked as advertised. In Centos 6, however, the system "hung" in

On 2/18/2015 8:20 PM, Chris Murphy wrote: > On Wed, Feb 18, 2015 at 3:37 PM, Niki Kovacs<info at microlinux.fr> wrote: >> >Le 18/02/2015 23:12, Chris Murphy a ?crit : >>> >> >>> >>"installer is organized around mount points" is correct, and what gets >>> >>mounted on mount points? Volumes, not partitions. >> >

On 2/27/2015 4:37 PM, James A. Peltier wrote: > | I was able to create a new PV and restore the VG Config/meta data: > | > | # pvcreate --restorefile ... --uuid ... /dev/sdc1 > | oh, that step means you won't be able to recover ANY of the data that was formerly on that PV. -- john r pierce 37N 122W somewhere on the middle of the left coast

Hi, For some time I've fiddled with Debian and Ubuntu LTS. There's one really nice feature for local networks: apt-cacher, a package proxy for APT. My company is in the remote South French countryside, and more often than not, schools and public libraries only have some very limited Internet access with relatively low bandwidth, which can make the updating process very tedious. A

has anyone implemented any sort of 'secure boot' using TPM 1.2 modules on the server boards using CentOS 6.x ? I'm not finding much concrete stuff on how to setup and manage a system like this, but I've been asked to research it for a security application internally at my job. our primary application for the TPM is for client authentication certificates in an SSL application

I've been taking a look at how RedHat (and CentOS) handles logrotate. According to the man page, logrotate is supposed to be fired by cron. But when I look at root's crontab $ sudo crontab lu root no crontab for root What exactly fires logrotate (and other scheduled events like "logwatch", which ends up in root's inbox)? === Al

Dear All Please be informed that I have an CentOS 5 server and I need it to be automatically rebooted at pre-specified times . To this end , I tried to set it as its crontab job as the followings : #crontab -e 30 15 * * * reboot It got through but after the server first reboot the crontab job disappeared . So I tried to set it in another way , as the followings : set the cron list in /tmp/temp add

The docs to installing cfengine refers to /var/spool/cron/crontabs/root That doesn't exist. Nor does /etc/crontab. Heck I remember that from the "old days", now there are lots of cron entries, in /etc but no crontab. Not installed by default. So, I'm hunting that one down. Nate, what did you wind up doing?? Ric -- ---------------------------------------------------- My father,