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Questions tagged [best-practices]

Questions asking for best practices in a given field. Be aware, that sometimes there might be no generally accepted best practices, in which case the question is likely to be closed for being subjective.

8
votes
6answers
23k views

Daily/Weekly/Monthly/Annual Sysadmin Tasks

This should probably be community wiki. I'm trying to come up with a list of all the sysadmin tasks that we should be doing on a regular basis because I believe we're not doing enough at our company. ...
19
votes
1answer
1k views

How to correctly move a server inside a rack up and down

Maybe a bit stupid question, but Sometimes (rarely but it happens) I need to move a server in a rack 1-2U up or down. What do you think, which of the ways is the most correct and useful and why? ...
2
votes
2answers
484 views

Statistics for iptable best pratices?

Looking for statistics on IPtable best pratices - appears that a server like www.cloudflare.com would parse iptables and look for gaps and trends in iptable configs - but don't think they'd publish ...
0
votes
4answers
2k views

Windows Server 2003 DNS: What is the purpose of Forward Lookup Zones?

What is the purpose of Forward Lookup Zones? I have a domain abc.com setup in DNS as a forward lookup zone. Now I want to add a new domain xyz.com to my DNS. I looks like I can either create a new ...
5
votes
3answers
1k views

Management Network Best Practices

I am looking at setting up a Management vlan, on which I will put all the Management interfaces for my various networkable devices (Firewall Mgmt Interfaces, Server RAC, WAP Mgmt Interfaces, etc). ...
15
votes
4answers
28k views

A secure, standard iptables rule-set for a basic HTTP(s) webserver

I have been trying to put together a basic server iptables script that will work for most sites just running a basic webserver using HTTP(S) and SSH (ports 80, 443, & 22). After all, most VPS only ...
-1
votes
3answers
208 views

Why are we constantly told, “There's a disk space issue”? [closed]

This morning, I was helping a BA with a particularly complicated report. I notice that in the reporting Development environment, we were only seeing a single day of data. Not only that, but the day ...
1
vote
2answers
916 views

ProFTPD - What is intended use of IdentLookups config option?

I have just recently got annoyed enough at my own dedicated server's FTP connection delay to go hunting for what causes delay. "Perpetrator" was IdentLookups configuration option. It defaults to on, ...
1
vote
2answers
1k views

Is there any advantage to creating a subdomain for my LDAP server?

Having just started using OpenLDAP to authenticate users across web apps, I'm intrigued by a pattern I'm seeing in the documentation: Most install/config guides seem to (implicitly) recommend running ...
9
votes
7answers
975 views

C:\ is for OS, D:\ is for Data?

"Back in the day" we always segregated our OS drives (in Windows) from our Data drives. In the Linux world, although I am much less familiar with it, I am aware that the wisdom dictates even more ...
1
vote
5answers
1k views

What to document in my network/domain?

I am doing system admin for a small domain on the corporate network. We have our own DNS, AD, DHCP servers etc and use both HyperV and ESX. What exactly do I need to document for this sort of setup? ...
5
votes
3answers
14k views

How to give write permissions to multiple users?

I have a web server and I'm uploading files using an FTP client. Because of that the owner and the group of the file are taken from the user used during the upload. Now I have to make this file ...
9
votes
3answers
867 views

What are some best practices when taking over IT at a new company? [closed]

I thought this would make for a good topic with some interesting suggestions. What are the first things you would do when taking over IT at a new organization? What are some red flags you would look ...
40
votes
15answers
2k views

Should I keep my ex-employer's data? [closed]

Following my brief reign as System Monkey, I am now faced with a dilemma: I did successfully create a backup and a test VM, both on my laptop, as no computer at work had enough free disk space. I ...
11
votes
2answers
3k views

Best practices for settings for Oracle database creation

When installing an Oracle Database, what non-default settings would you normally apply (or consider applying) ? I'm not after hardware dependent setting (eg memory allocation) or file locations, but ...
3
votes
7answers
708 views

DDOS Attack Victim - How much to Admit?

Here's the environment: Website that hosts a forum/journal/bboard/email/socialmedia application in walled garden (ie you pay to get to use it or are invited to do so Many Clients pay to use the site ...
1
vote
7answers
1k views

Employee no longer with the company

When an employee is fired or let go, it is critical to disable their accounts and access to resources immediately. How do you handle this at your organization?
17
votes
8answers
1k views

What is the system administration equivalent to dogfooding?

Software developers have the concept of "dogfooding", which is where they personally use the software that they are developing, often on a regular basis. For some projects, the direct interaction it ...
85
votes
5answers
96k views

Windows Active Directory naming best practices?

This is a Canonical Question about Active Directory domain naming. After experimenting with Windows domains and domain controllers in a virtual environment, I've realized that having an active ...
31
votes
12answers
68k views

Active Directory: delete vs. disable departed employees [closed]

When an employee leaves your organization, do you delete or disable their Active Directory account? Our SOP is to disable, export/purge the Exchange mailbox, and then after "some time" has elapsed (...
1
vote
2answers
246 views

Best practice for floating license purchases?

Is there a best practice for determining how many floating licenses of a product to buy? I need to purchase Rational Rose for 15 developers, but I'm unsure as to how to determine how many floating ...
23
votes
9answers
2k views

A partner wants a copy of our written IT security policy and I'm not sure what to do [closed]

My company is working with another company and as part of the contract they are requesting a copy of my company's written IT Security Policy. I don't have a written IT security policy, and I'm not ...
112
votes
7answers
96k views

Top level domain/domain suffix for private network?

At our office, we have a local area network with a purely internal DNS setup, on which clients all named as whatever.lan. I also have a VMware environment, and on the virtual-machine-only network, I ...
21
votes
9answers
2k views

Best practices for backup checking?

It is a common situation, when administrator makes system for automatic backuping and forgets it. Only after a system fails administrator notices, that backup system has broken before or backups are ...
96
votes
18answers
14k views

What sysadmin things should every programmer know?

As a programmer, we tend to take sysadmins for granted. The few times I've been without a good sysadmin have really made me appreciate what you guys do. When we're venturing into an environment ...
48
votes
7answers
7k views

Cable Management Policy

We've all seen good and bad examples of cable management. What are objective, measurable requirements that can be used in a policy to maintain cabling order in the rack/server room/data center? I'm ...