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Questions tagged [maintenance]

maintenance is keeping hardware and/or software systems in a healthy state by performing tasks such as updating, cleaning or replacing parts.

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Advice in how to properly maintain my UPS [migrated]

First of all, I hope this is the right place to ask. I have looked around and this seems to be the correct place inside SE. I do not own a server but I use a really old APC Smart-UPS SU1000INET for my ...
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  • 101
0 votes
1 answer
46 views

Weekly RAID check affecting my system - any way to mitigate?

I recently got my webhost (Hetzner) to add a paid of 16TB SATA drives to my webserver. Currently using 2.5TB of them. They're RAID 1 mirrored. I also have two 4TB nVME drives with 700GB currently on ...
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  • 1,034
0 votes
0 answers
50 views

Concurrent ssh connections on control server keep dropping

I'm facing an issue with setup I am using for ocassionally doing maintenance on a bunch of customer servers via remote SSH Following Setup: 1 Control Server X Arbitrary number of Customer servers set ...
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  • 101
32 votes
7 answers
15k views

Does a server need a GPU?

Do I need a GPU on a text and console only server? No GPU as in no iGPU and dGPU. Im going to be using SSH, so I dont need a display out. Im using Linux, but the OS shouldn't affect the results
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  • 455
0 votes
0 answers
63 views

How to set maintenance page when using apache2.4 as reverse proxy

We are using ProxyPass and ProxyPassReverse to redirect traffic to our application. how can I setup a maintenance page when we are performing deployments. Thanks
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1 vote
1 answer
65 views

Server maintenance landing page - can it be on HTTP?

We are running two accounting systems on ruby on rails and sometimes we have to do maintenance tasks which cause downtimes, or just that they are simpler to do with downtimes. i.a. This week we where ...
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  • 13
0 votes
1 answer
125 views

One custom maintenance page for all errors (Nginx)

I want to show one custom maintenance page for all errors. What code should I put to my nginx setting below? and the file of my nginx setting is located at /etc/nginx/conf.d/default.conf. server { ...
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0 votes
1 answer
132 views

Overriding individual websites hosted in NGINX to show a Maintenance Page

We have an architecture whereby we are hosting multiple sites in NGINX. Each NGINX site has its own config.Each of these sites points to a common codebase but points to a different domain name and its ...
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-3 votes
2 answers
411 views

Ways to find out if an old server is still in use?

I received a list of 200 servers on the internal domain and I am tasked with determining if they could be end of life. Unfortunately, I've only worked here a month, so I do not know what most of these ...
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1 vote
0 answers
352 views

nginx putting site into maintenance either blocks the maintenance file or still allows all files

I'm running a simple nginx server with php-fpm to serve my pages for me. I've been trying to put it into maintenance mode by redirecting all requests to 503 and then using a custom error page to ...
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0 votes
1 answer
628 views

How do I temporarily pause, stop, block, or deny users from logging into my Windows Server 2016 application server during maintenance?

I have an application server into which multiple users log in daily, but I want to keep them off while I am working on some maintenance tasks. How can I do that?
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0 votes
2 answers
56 views

Does me hitting the serverfault site during routine maintenance cause the server/sysadmin team issue?

Not sure if this belongs here, but had the thought while trying the hit Stack Overflow during routine maintenance. Does me hitting stackoverflow.com when its down cause issues on the servers? If ...
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0 votes
0 answers
181 views

Restore SQL dump in a running Kubernetes deployment

TL;DR: I imagine that there is a way to temporarily disable access to a pod / service so maintenance can be done. In this case: Block access to a database so a dump can be restored. $ kubectl exec ...
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  • 11
3 votes
2 answers
2k views

GCP Maintenance Events

We recently experienced an issue where our master Dataproc instance rebooted and some of our services didn't start up cleanly; we're not sure what triggered this reboot but the logs suggested that it ...
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1 vote
0 answers
88 views

SSL cert mismatch on redirect to sorry/maintenance website

We are trying to address an (IIS) SSL cert mismatch issue. We own dozens of domains name for various lines of business. We have multiple websites load balanced on a netscaler onsite. For example, ...
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  • 11
1 vote
1 answer
121 views

Are .htaccess redirects secure/reliable (website maintenance)?

Our website will be going down for around an hour or so for maintenance. All users need to be redirected to a page indicating that the website is receiving an update and/or under maintenance. Will ...
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  • 13
1 vote
1 answer
36 views

How to allow root login server and disallow website users connection in centos 7 maintenance period?

My clound VPS server is centos 7.4,I run apache,mariadb in this server. Now,I want to migrate from mariadb to mysql. During maintenance, server need no user disturb. In centos 7, has no run level 1,...
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  • 835
1 vote
1 answer
2k views

Nginx - A common maintenance page for multiple dockerized Angular applications

I am hosting multiple Angular apps with Nginx. All of them run in their own containers and if a container is offline, I display a maintenance page located at /var/www/maintenance/. To do this, my ...
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  • 145
0 votes
2 answers
1k views

Script to delete many old user profiles from file server?

I have a network share on a Windows Server 2012 machine that is used to store all the user profile files (My Documents, Desktop, etc). There are hundreds of old users I need to get rid of and I am ...
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  • 123
3 votes
1 answer
2k views

Restart Systemd unit after dependency

I have a web application that is started by systemd. It uses Postgresql as database, so it rely on it. Here is the unit file of my web application (I have remove the un-relevant/sensitive parts): [...
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  • 133
0 votes
2 answers
115 views

VPS - Maintenance Efforts

I'm contemplating about moving my current website to a VPS - Plan instead of a shared hosting which I'm on now to make the deployment process of updates a lot easier (the shared hosting environment i'...
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  • 109
3 votes
1 answer
2k views

Should you occasionally discharge UPS to higher degree?

We're occasionally experiencing some short outages (few minutes at most or even seconds) so batteries in UPS almost never get below 90-80%. Is it advised to sometimes (eg. once half a year) perform ...
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  • 353
1 vote
0 answers
46 views

Active Directory - User profile/workstation administration without file-service access - Best practice

We are a small company with 15 users which is now setting up its first Active Directory (1 machine with Windows Server 2016 Essentials). I am unsure how to setup a secure environment for my situation ...
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  • 11
33 votes
3 answers
5k views

Disable all services, except ssh

How can I disable all services except ssh on modern (systemd based) linux distributions? I need to implement a maintenance mode. All these services need to be down: postgres postfix apache cups ...
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  • 2,914
1 vote
1 answer
676 views

Debian squeeze - Unable to upgrade bash

I'm trying to upgrade bash so its not vulnerable. I tried Sources List Generator for Debian. But libtinfo5 is stopping me from upgrading bash. I could not find older version (due to source list ...
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  • 23
0 votes
2 answers
2k views

Run AWS RDS maintenance manually

I received an email from AWS about one of my multi-AZ RDS instance. They basically said that there was going to be an upgrade during a certain period: We are contacting you to inform you that one or ...
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  • 103
0 votes
3 answers
3k views

Disable maintenance mode from within recovery (Debian)

My rootserver's power supply died the day before and the hoster had to replace it. Since then, the server does not boot correctly anymore. Because of the sudden powerloss, it starts right in some kind ...
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  • 1,399
1 vote
1 answer
133 views

make shutdown / reboot warn on a shared server in case of user sessions or high load

Is there an easy way to warn an admin on shutdown, reboot, poweroff, halt, ... about: ongoing computations (high load, high disk io) open bash / zsh / ... terminal sessions other logged in users ...
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1 vote
1 answer
104 views

Postfix relay, how to put the relay in maintenance ? (stop listening to port 25 but finish sending active queue)

I do use a postfix relay that does some custom mail filtering. Sometimes this is need for maintenance to disable this relay. I need the relay to stop listen to port 25 so that other MX records still ...
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  • 113
5 votes
1 answer
2k views

Synology volumes vs shared folders

What is the benefit of making more than 1 volume on disk group on Synology DiskStation? Or, in another words, what is the benefit of organising data into a) many volumes vs b) many shared folders on ...
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2 votes
2 answers
3k views

How to kick users from Windows Server 2012 R2

I need to migrate some databases from one server to another to decommission the first one. This server is sharing a network share and a database. Prior to migration and to ensure data integrity, I ...
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  • 475
-3 votes
1 answer
128 views

Windows 10 directory Installer takes too much space, can I set it as compressed folder? [closed]

Windows 10 directory Installer takes too much space - 41 GB. First I have problem with Microsoft search which has 31 GB. I manage to reset it. Then I upgraded to Windows 10. After 1 month I deleted ...
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3 votes
2 answers
773 views

Automatic Updates on Production Server

Seeing as there have been more and more exploits recently with shellshock etc. Have the opinions of people changed in regards to having automatic updates on production servers? And what would the ...
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  • 199
0 votes
1 answer
99 views

SQL 2005 SP4 Maintenance Plan Not Saving

I am using SQL 2005 SP4 specifically version 9.00.5000.00 it is the Standard Version and I am accessing it using SQL Server 2014 Management Studio. I am trying to create a rebuild index tasks from ...
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0 votes
2 answers
3k views

Why isn't the Microsoft Update Catalog working?

The Microsoft Update Catalog web site seems to be very unreliable. If it isn't working, what troubleshooting steps are sometimes helpful? (Please note that the Microsoft Update Catalog is not the ...
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1 vote
0 answers
66 views

Security maintenance on cloud instances created with docker-machine?

After reading about some people's issue with Docker hosts' time going out of sync, I realized that my Docker host on Digital Ocean (created via docker-machine) may want ntp running on it, and that got ...
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1 vote
2 answers
1k views

How to automate disk checking in Windows?

Chkdsk is a very manual, technical solution Hard Drive checking in Windows reports a lot of unnecessary info, requiring that you read through it the chkdsk report, etc. Also chkdsk can't fix problems ...
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  • 1,383
4 votes
1 answer
115 views

What is required in installing/maintaining a software package on a production server? [closed]

A coworker of mine and I are discussing the use (or not) of a full text search solution, namely Elasticsearch in our web application. I am the developer of the web application, and he manages the ...
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14 votes
1 answer
27k views

doveadm: Delete messages older than date

I've a situation where some users keep very old messages (+5 years) on their mailboxes that are just a waste of space and due to safety reasons should also be deleted. I find out that I could use ...
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  • 1,046
0 votes
1 answer
320 views

Squid reverse proxy: maintenance mode

Currently I am trying to configure my squid (3.1) reverse proxy to always display a static webpage when the one and only backend webserver is under maintenance. There is no need for an automatic ...
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  • 1
1 vote
1 answer
260 views

Hitachi CR210 console command

I am looking for command for console for Hitachi CR210. this is the equivalent of HP ILO, where you can connect to ILO IP with ssh, have access to console (if OS is in text mode), issue power off/on ...
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  • 1,341
1 vote
1 answer
39 views

Determining optimal maintenance windows for end-user system patching

What would be good information to use in order to identify and report on times when the highest number of transient end-user systems such as laptops are connected to the network? Available to me is ...
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3 votes
2 answers
258 views

Allowed production maintenance during business hours [closed]

I recently came into managing a small startup. As most small startups, I would think, we have been doing what we wanted in production virtually when we thought it was okay. People are careful and ...
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  • 133
18 votes
6 answers
1k views

Any ideas on how to run maintenance on a site that is always under use?

I help out with a large gaming site in Australia. We run competitions from 7am local time to 1am the next day, every day of the week. We haven't skipped a day since the site was released. Naturally, ...
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-1 votes
1 answer
72 views

Looking for some useful resources to find out site and server downtime reasons [closed]

I have recently started monitoring some server instances at digitalocean, OVH and an independent provider at biznesshosting. The application servers' stacks are based on: CentOS NGINX with Passenger ...
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0 votes
2 answers
3k views

Website/Server down for maintenance - Redirect to 'Landing Page'?

I have been given the task to make it so when customers try to access their websites while maintenance is taking place (Whether on their website, or taking the whole server offline) they are ...
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  • 3
-2 votes
2 answers
226 views

Is it safe to reboot Linux every night? [Being attacked] [closed]

Is it safe to use reboot command to reboot VPS every night? I'm under attack everyday for ~30 mins and I'm pretty sure if they could attack, they would do it non-stop. I contacted hosting provider, ...
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  • 3
0 votes
2 answers
1k views

How can I deploy a 503 maintenance page when upgrading a Digital Ocean droplet?

Usually when I perform maintenance that requires briefly taking my site down, I put up a 503 page using something similar to How can I make Nginx return HTTP 503 when my proxied app server is down?. ...
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  • 175
1 vote
3 answers
4k views

What is recommended size of hard disk for a Server?

I have heard that large hardisk >= 1TB are not recommended on the server because they can cause synching issues if one fails + their chances of failure is greater over a longer period of time as the ...
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16 votes
4 answers
37k views

haproxy: how to prepare a server maintenance without kicking app sessions?

The issue I'm using haproxy to load balance web servers. I use session persistence with additional cookies as some applications use session files and these are not synchronized between servers. I ...
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