Quantcast
Channel: linuxadmin: Expanding Linux SysAdmin knowledge
Browsing all 17901 articles
Browse latest View live
↧

How to update passwords for iRedMail?

I am using iRedMail with a MySQL backend. For security reasons, I would like to update all of my passwords once a month. Changing the postmaster password can easily be done through the web interface,...

View Article


LizardFS NFS-Ganesha

Running LizardFS 3.12 on Centos 7.4 wihout issue using the mfsmount command. This part works.[root@client ~]# mfsmount /mfs/lizardfs mfsmaster accepted connection with parameters:...

View Article


Anybody here use Rancher? Would using Rancher help familiarize me with...

Hey everyone,I'm looking to learn more about Kubernetes and begin using it, and was wondering if installing and using it through Rancher would be a good idea.Would Rancher give me the same command line...

View Article

HA chicken and egg question.

Let's say you have an app server. You want HA. You do that by have an HA proxy in front of 2 app server. But then didn't we get back to square one because the single point of failure just got moved to...

View Article

iRedMail and stored plaintext passwords?

I recently setup a iRedMail server (with a MySQL backend) and everything is working fine, so I am switching to maintenance mode. In that spirit, I was investigating updating all of the iRedMail server...

View Article


unattended backup to google drive - how?

I want to start backing up my small home server to google drive - unattended, (gpg?-)encrypted. I used to use duplicity with dropbox backend, but the "unattended" part didnt work, and then there was...

View Article

Can i resize the aws instance size in a node cluster in docker cloud

we have 8 aws instances in our node cluster (m4.xlarge) .Can i destroy the stack file and resize each instance size in aws console to m4.2xlarge and deploy the stack again ?will this affect any of my...

View Article

The Machine [Linux Automation]

Over the past couple of years I've worked at organisations that have used a collection of common Linux server applications that became onerous to manage at scale, or too difficult for non-admins to...

View Article


VirtualBox Host-Only Networking + TAP + ARP troubles...

So I do most of my development on an Ubuntu VM + macOs host and am learning about networking. Before describing the problem here's my network topology with (1) host-only networking between eth1 and...

View Article


HP renamed their firmware RPMs...

So now rather than just chucking the latest system RPMs in our repo and letting our auto-updater handle the firmware upgrade I now either have to rebuild all future RPMs with the old naming scheme, or...

View Article

Help! - Career Day Presentation Activity

So I've made the great choice to go speak with my son's school for career day (4th & 5th Grade [9 - 11 yr olds]). I'll be presenting to 9 different groups of kids (20 per group) for 40 minutes at a...

View Article

how to import plugins in jenkins?

So I have two jenkins box. one old jenkins box with bunch of plugins, the other slightly different jenkins box that's clean. How can I import all the plugins from the old jenkin box to the new jenkin...

View Article

Noob questions about partitioning - lvm - parted - fdisk

Assuming I have a full hard drive at my disposal.Do I have to create a LVM partition with parted or fdisk to use a disk with LVM? Or does pvcreate-vgcreate-lvcreate will take of that?Then of course I...

View Article


jenkins server host key rejected.

I have 2 box. cloudbees and slavebees. I have a test job running designating the job to run on slavebees. However, I am getting the following error. Jan 10, 2018 3:05:54 PM [ssh] Opening connection to...

View Article

inodes got filled one of my instance in aws but there is lot of space left on...

submitted by /u/aish33 [link] [comments]

View Article


Does anyone know how to use policyd-rate-limiter?

Hey guysI have a linux server that runs IMSCP 1.5.1. I need to set up a global outgoing rate limit for all email users. The server is running latest debian, and in the apt repo I have something called...

View Article

Proftpd question for a very new Linux user/admin

Can you limit what users see if using a program like FileZilla to upload or download? I was able to set users to only see their home directory if they login via the address bar, but if they login in...

View Article


Xen HVM, Grub, partition tables and file images.

submitted by /u/turnipsoup [link] [comments]

View Article

Has anyone used Veeam for backing up their linux systems?

I'm trying to find a backup software to use for a future tape library I plan to purchase. I'm currently using Arkeia but it has been EOL for a while now and I need to move to something else. When I've...

View Article

SSH Through a Jumpbox to a Protected Server - the Easy Way

submitted by /u/chillysurfer [link] [comments]

View Article
Browsing all 17901 articles
Browse latest View live