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.

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9
votes
2answers
7k views

Best strategy to keep chef cookbooks versions under control

I'm looking for ideas about chef cookbooks versions management. I know that you pin specific versions in the environment, but I'm not sure how to go about it. We use librarian-chef which installs 3rd ...
1
vote
1answer
69 views

Install Apache from Source or from Binary?

I work on a platform which serves several different projects. For the most part, all of the projects install their web server using Red Hat's RPM. We never created a policy for this which would ...
-2
votes
2answers
100 views

how to limit directory size without quota (vserver)? [closed]

Hope the question is not too general. As I have a vserver (Ubuntu 12.04) I cannot restrict the size of directories by using quotas. I wonder if there are other possibilities to achieve this. The only ...
1
vote
1answer
2k views

what would be a better practice instead of chmod g+r /etc/shadow so I can use Unix user/group database for Jenkins authentication?

I don't want to run Jenkins as root, nor giving public access (or even group access) to /etc/shadow seems to a good idea. as suggested by "Manage Jenkins" when selecting Linux user/group database: "...
4
votes
3answers
445 views

Keeping Track of Enterprise Desktops [closed]

Part of my job is to make sure that for computers in a specific OU, whats Actually in use = whats listed in AD = whats listed in SCCM. This is for an environment with 250k PCs, but i specifically ...
-4
votes
3answers
116 views

How to debug and prevent flaky unreliable IT environment? [closed]

I am not an IT admin, I'm a software developer (microsoft stack) and I'm trying to understand what is wrong with the IT environment of one of our customers. We have deployed our client\server ...
1
vote
3answers
657 views

ESXi running 2 x Windows 2012 setup advice

After much deliberating and advice I'm intending to use an element of virtualisation for deploying some new servers. The original (physical) plan was one server running as domain controller, SQL (...
15
votes
4answers
74k views

Best Practice: vCPUs per physical core

I am trying to find some documentation or best practice guides for virtualization with respect to provisioning vCPUs per physical core (of a CPU). If it matters, I am looking at vmWare for the ...
0
votes
1answer
578 views

Integrity checking vs. audit

In RHEL5 Security Guide using of AIDE for checking software integrity is recomended. And also built-in RPM integrity checking functionality. But frequent checking can be resource demanding and rare ...
11
votes
1answer
4k views

Server room wiring questions

I'm looking at rewiring our server room to be more presentable, organized, and easier to troubleshooting. Right now we currently have 4 HP racks (don't know the model right now). We do not have a ...
1
vote
1answer
656 views

When moving a server from behind a firewall into a DMZ, should you move a test server first? [closed]

We have to move a server from within the firewall to a DMZ (not a true DMZ, but a space that's between 2 firewalls. Is it typically a good idea, when moving a server in this fashion, to stand up ...
2
votes
1answer
7k views

Active Directory Domain Controller in Multiple Sites - Server 2012

So I'm not used to setting up DCs in multiple subnets/locations, I was hoping to get some guidance. I'm just messing with virtual servers at the time being. DC1 = Apollo DC2 = Cronos Pre-AD Config ...
1
vote
2answers
1k views

remote access/vpn to windows server 2012 production server best practice

I' need to access my production environment from remote ,outside the lan for emergency. I don't want users are prompted for remote desktop credencials and try to guess username and password. So what ...
0
votes
2answers
555 views

Cisco ASA 8.4+ redirect multiple ports - best practice?

I was wondering whether anyone could advice on best practices as to the best way to redirect multiple ports for single host in the internal network. As I understand this you can only nat a single ...
68
votes
5answers
4k views

Choosing between meaningful and meaningless hostnames [closed]

Assume an environment with a puppet-managed cluster of different servers - various hardware, software, operating systems, virtual/dedicated, etc. Would you choose meaningful hostnames (mysqlmaster01.....
0
votes
1answer
626 views

DNS Server 2008 R2 from 2003 - Stand Alone -

We have just implemented two new windows 2008 r2 stand alone servers running dns and they took the place of our old 2003 stand alone servers. Is there residual clean up that would need to be done on ...
1
vote
1answer
71 views

best practice renaming ssh login server [closed]

quick question: let's say you have a ssh login computer called sshlogin.example.com. Now for some obscure reason, your company decided to rename that machine to ssh.example.com. What's the best ...
11
votes
2answers
472 views

Outlook Email Abuse - Guide for email etiquette?

I've spent a lot of time performing mail migrations for companies that either had very little IT focus, or no fulltime staff to handle common issues. As a result, policies governing email use and best-...
5
votes
3answers
133 views

What protocol should be followed if website is actively under attack?

When you have just detected your website is currently under a hack attack that is attempting to penetrate your website, I am not including Denial of service in my question, what do you do? Are there ...
1
vote
2answers
242 views

Is there a reason I shouldn't use iptables port forwarding?

I have a small application running on port 8888, and as a quick fix to remove the need to append the url with the port, I used the iptables program to forward all requests to port 80 to 8888. sudo ...
1
vote
5answers
1k views

Best Practices for Open Relay Email Server

I have a scenario where I need to setup postfix with no TLS, no SMTP authentication, and open relay allowing from only one remote IP address. Emails from this remote IP may have spoofed "from" address ...
0
votes
1answer
165 views

Is it a good practice use LDAP for auth in a public webapp beside the app DB?

Internet app needs to be really secure. So LDAP for auth got into the game. Instead doing the traditional db with users table, we want to authenticate agains a LDAP server. How good/bad you think it ...
0
votes
2answers
131 views

NginX installation-source best practice

I'd like to install NginX as a reverse proxy on CentOS. I know three different ways to install NginX: Compile itself Install over EPEL Install over official NginX package repository Which way ...
-1
votes
1answer
65 views

Disabling/hiding rather than deleting [closed]

From what I understand, it's generally best practice to design a system with user access to delete "records" to only hide/disable that record and not actually delete it. This typically ends up being (...
7
votes
2answers
4k views

GPO best practices : Security-Group Filtering Versus OU

Good afternoon everyone, I'm quite new to Active Directory stuff. After upgraded Functional level of our AD from 2003 to 2008 R2 (I need it to put fine-grained password policy), I then start to ...
1
vote
1answer
100 views

Avoiding sudo to root with an alias, is it possible? [closed]

I've developed a bad habit of constantly sudoing to root. I was wondering if its possible to create an alias that prevents straight sudo but allows sudo -u. Or possibly echoes a warning when using ...
1
vote
1answer
217 views

Best practices for IPv4/IPv6 hosts in DNS zones?

I've got a VPS with IPv4 and IPv6 addresses, and I'd like to use them both for my website and other services I might use. I've added a "www" register both with "A" and "AAAA", and I've done the same ...
2
votes
1answer
676 views

Is there a good reason to change session.save_path?

On shared hosting, we had occasional problems when the server's /tmp directory was full. Our hosting company suggested we change the session save path to be unique for each site. ini_set('session....
3
votes
2answers
152 views

One active directory server for one geographical site?

we have an 2008 R2 active directory server on our main site. Recently we opened a small secondary site. My question is pretty simple : our 2 sites are connected with a VPN, is it mandatory for us to ...
4
votes
1answer
384 views

Using Public IP addresses for Private Network

I have a network that uses the 192.192.192.x network address for their private network. It looks like publicly those are IP addresses that are assigned in Taiwan. I don't think they do too much ...
1
vote
1answer
287 views

Best practice for replacing failing drive in a TWO Domain Controller domain

Hi I have a two domain controller domain and i will refer to them as DC1 and DC2, here is some info on them. DC1 is or has all FMSO roles DC2 serves as another Domain Controller for replication DC1 ...
9
votes
1answer
856 views

What are the best practices for service accounts?

We're running several services in our company using a shared domain account. Unfortunately, the credentials for this account are widely distributed and being used frequently for both service and non-...
1
vote
3answers
8k views

Enabling Receive Side Scaling & IPsec Task Offload v2 on a Network Adapter

Running the Best Practice Analyzer on a Windows Server 2012 RTM (this virtual server runs on a hyper-v host), I receive two configuration warnings. Enable Receive Side Scaling (RSS) on a network ...
0
votes
1answer
227 views

How to delay and queue commands for execution at a later time? [closed]

My site receives numerous uploads and I can't afford to waste cycles and time processing them on the spot (e.g., trimming, optimizing, resizing, etc.). What technologies exist to delay and queue these ...
2
votes
1answer
2k views

Best way to override 1024 process ulimit

On CentOS distros, there is an /etc/security/limits.d/90-noproc.conf that sets a process limit for all users: # Default limit for number of user's processes to prevent # accidental fork bombs. # See ...
-1
votes
2answers
3k views

Using RAID1 vs. rsync pros and cons [closed]

I am building myself a Linux NAS/home server. I am considering either using sw RAID-1 (mdadm) to replicate data or alternatively just rsync them periodically. What are advantages/disadvantages of both ...
2
votes
1answer
103 views

Best Practice for “fastcgi_pass” Directive Location in NGiNX

Is best to put the fastcgi_pass 127.0.0.1:9000 directive in the fastcgi_params file for NGiNX, or to explicitly state it in the location for \.php$? Or does it not really matter?
3
votes
1answer
2k views

Active Directory Split-Zone vs SubDomain Domain Name

Note - I know there are a ton of questions around AD Naming. I do not believe though that this is a duplicate question. If it is please link me to a relevant one :). We are implementing AD. Our big ...
10
votes
3answers
643 views

Cisco ASA and multiple VLANs

I currently manage 6 Cisco ASA devices (2 pairs of 5510s and 1 pair of 5550s). They all work quite nicely and are stable so this is more of a best-practice advice question rather then "OMG it's ...
2
votes
1answer
655 views

How should I configure my Active Directory servers so that if one goes down, users are not kicked off SQL?

Today, we shut down one of our Active Directory servers during office hours to check the loading on a UPS. Since all the server did was provide Active Directory in a separate building incase the main ...
0
votes
2answers
446 views

Where to store big data (best practices)

I am installing a fresh Ubuntu on our lab server. We have lots of massive genomes which need to be accessed by Apache www-data user. Currently I backed all the data up on external drives. My goal is ...
14
votes
4answers
758 views

IT lead does not have a backup, DR plan in writing [closed]

This is a general management question to IT managers out there. We are a small firm with about 4 servers in our colo cabinent. No full time IT manager. But we do have one person on monthly contract ...
4
votes
2answers
276 views

Standard Firewall and Network Change Testing Procedure

I am looking for a standard that advises on the best practice for testing of the following situations: Network Changes Firewall Changes Does any standard exist? If so, please note where I can find ...
1
vote
1answer
73 views

Best practices for backup on a massively parallel grid system

I work in the research group of a large company. We do a lot of work on a grid processing system with many nodes (More than 200, I'm not sure exactly how many) and several harddrives. More than 1000TB ...
0
votes
2answers
250 views

Best Practice: Implementing a Full Disk Encryption on laptops

We are thinking about using TruEncrypt full disk encryption to protect the data on our laptops (roughly 15-20 in the healthcare field - XP & Win7). And I was wonder about backups, and not per say ...
4
votes
1answer
110 views

A separate user for each task?

I just got a VPS sver the other day, I'm new to server administration, but not that new to Ubuntu (11.04). I use it in my living room as the HTPC, and I had a previous VPS that I used on and off for a ...
2
votes
2answers
263 views

How accurate is the 'supersede' term regarding older updates in WSUS?

Been recently playing around with different options for management of my servers. One of these is WSUS. Getting a beginning list of updates was simplistic enough (though, the list is a bit...long) ...
5
votes
1answer
3k views

Best Practices for rotating syslog logs on RHEL with different schedules?

OS: Running RHEL 5.6. Situation: I need to rotate /var/log/messagees on a different schedule than the rest of the syslog logs. By default syslog logs are rotated weekly based on the /etc/logrotate....
3
votes
1answer
3k views

Is it a bad idea to do an OVF Export of a VM with snapshot data?

I'm currently using a VM running on ESXi 5.0 to dry-run installation procedures for a software product. We're trying a whole different bunch of things, so I'm making extensive use of snapshots to save ...
2
votes
1answer
196 views

How can I share a live BZR repository with multiple users?

I'm not sure how best to ask this question. Over several years I've developed my way into a corner and need to figure some things out. I almost certainly haven't been following best practices up until ...