The operating-system tag has no wiki summary.
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3answers
51 views
Linux: Same files different size
I've 2 configuration files in linux. One file size is 177bytes and 2nd one is 183 bytes.
Checked size by following command:
wc -c Config
both files have 100% same text, same name (different ...
1
vote
2answers
95 views
Xen 4.1+ with local ZFS storage
I'm speccing out sandbox VM servers for developers at my company. The requirements for the dom0 hosts are: local, deduplicated ZFS storage (no separate storage servers), and Xen 4.1+ (4.2 is ideal).
...
0
votes
3answers
96 views
No partition found error when installing an OS on Dell Poweredge with RAID
I have three Dell 1850 rack servers:
One has 3 GB of RAM and two 73GB HDD's.
Two others have 6 GB RAM and each of them has two 73GB HDD's.
I am currently trying to install an OS on them, but when ...
0
votes
3answers
59 views
Can I use group policy on a Windows Server 2003 server to ensure that every computer on the domain has the firewall switched on
I want to make sure that every computer on the domain has the Windows Firewall switched on and the user (even if logged in as Administrator) cannot switch this off.
I know how to do this locally on a ...
-1
votes
3answers
156 views
Is VMware an operating system [closed]
I'm interested in virtualization and have some questions about type of hypervisors and their implementation.
What I know is that we started with type 2 hypervisors. These get installed on the ...
2
votes
2answers
91 views
Local backup server - what operating system / software to use?
We have very minimal backups. About 6GB total (including Server 2008R2 OS), and it changes maybe 30MB a day if that. We have an extra server (Dell T310) sitting here with 4 3TB drives in RAID 5. It ...
2
votes
1answer
65 views
Disabling Operating System TCP Management
Is there a way to disable TCP state management of OS, for example on a specific port, or on another ip or if not, disabling the whole tcp management and managing it in an application with root access?
...
-2
votes
1answer
56 views
How does computer hardware ensure that user programs cannot overwrite memory used by the operating system? [closed]
I just took an online quiz for my Operating Systems class. I got this question wrong, can you please give the right answer and why? I answered A. Also, if this needs to be migrated to a different SE ...
6
votes
2answers
137 views
Linux: how many disk I/O does it take to read a file? How to minimize it?
According to this paper on Facebook's Haystack:
"Because of how the NAS appliances manage directory metadata, placing
thousands of files in a directory was extremely inefficient as the
...
0
votes
3answers
109 views
Installed over 4G RAM on 32-bit OS? [closed]
Possible Duplicate:
32-bit Windows Server address > 4GB RAM - How?
I know that for 32-bit OS, the addressable memory space for each process is "4G" (maybe just 3G in user space...).
If I ...
0
votes
0answers
68 views
mkisofs - Floppy Image to Disk Image
I'm trying to compile MikeOS on windows. I've successfully (I think) created a floppy (.flp) image of the operating system. I want to convert it to a disk image (.iso) so I can run it in virtual box. ...
0
votes
1answer
122 views
What's the difference between hardware and software interrupt? [closed]
I'm gonna sketch my understanding of both. I've googled around but i'm not sure about my knowledge. Please correct me!
Hardware interrupt is generated by the operation system event scheduler to ...
0
votes
0answers
85 views
HAProxy on Amazon Linux AMI
I am running HAProxy on a Amazon Linux AMI to load balance the RDS read replicas. What parameters should I tune on the large instance/server to ensure HAProxy performs at its best ?
thanks
0
votes
2answers
49 views
Why it's not possible to compile on a different OS than end-user OS [closed]
I was trying to compile a php extension on windows and ran into some trouble. I then thought it was possible to do the compilation for Windows on Linux, but turned out that wasn't possible.
Can ...
2
votes
3answers
88 views
find page size and number of pages of a process in linux
Given a PID of the process running in Linux (latest kernel), how do I find out:
The number of pages it is using
The size of each page it is using (4K, 2MB or 1GB)
This is for x86-64 architecture
-3
votes
2answers
363 views
How browsers handle multiple IPs
Can someone direct me to information on exact browsers behavior when browser gets multiple A records for a given hostname (say ip1 and ip2), and one of them is not accessible.
I interested in EXACT ...
0
votes
1answer
124 views
How to skip ExpressGate loading
I have to install a windows on a laptop which has preinstalled Asus Express Gate on it. The problem is that I am not able to enter the boot settings, so the system would be installed form a flash ...
0
votes
1answer
148 views
Best server operating system for number crunching [closed]
I am purchasing a new server for number crunching. It will have dual E7-4870 chips, 128GB RAM and a RAID 5 of SAS Hard Disks. It will be doing a lot of CPU intensive number crunching. I have set up ...
3
votes
1answer
318 views
What are the semaphore arrays on Linux?
I understand semaphores, but what are these semaphore arrays being used on my Linux box?
$ ipcs
------ Shared Memory Segments --------
key shmid owner perms bytes nattch ...
2
votes
2answers
96 views
Reset/reuse linux device letters?
Is there a way to tell the OS that /dev/sdd is really gone when I disconnect it and that it can reuse that letter?
I have RAIDs hooked up through fibre channel. I have it set up so that fstab will ...
2
votes
2answers
125 views
OS reinstall on a machine with Whole Disk Encryption
I have a machine that has McAfee SafeBoot Whole Disk Encryption on it. If I don't have the safeboot password, can I boot from a OS installation disk, format the disk and reinstall the OS? Will that ...
-2
votes
4answers
50 views
It is possible to run a virtualized OS on a datacenter facility? [closed]
I want to know if it is possible to run a virtualized OS over a datacenter service.
(i.e. to have a Windows Server at Amazon EC2 and two linux instances running on an installed virtualization engine ...
-1
votes
4answers
123 views
How to check if a normal user has super user privileges
I want to check if a normal user has super user privileges(means root privileges). My OS is RHEL 6 and i checked /etc/passwd configuration file, but no use. Please tell me any method to find the ...
0
votes
0answers
92 views
Apache 2 Virtual Hosts no working on OSX 10.6
This is my first MacBook and I'm trying to get virtual hosts up and running so as it's going to be my dev machine.
I've got apache/php/mysql running fine, the problem is that what ever address I go ...
1
vote
2answers
156 views
Would NetBSD be a good choice for a web server?
I've the choice of crafting a NetBSD image for a Xen VPS host, and was just wanting to play around as I like BSD and wished to use it for my general web hosting. I will be hosting a low-mid traffic ...
5
votes
3answers
412 views
Campus VLAN Segmentation - By OS?
We've been thinking through re-arranging our network and VLAN configuration. Here's the situation.
We already have our servers, VoIP phones, and printers on their own VLANs, but our problem lies with ...
1
vote
1answer
46 views
System File Checker vs Service Pack Reinstall
When trying to repair slow workstations, I've found that running sfc /scannow helps quite a lot in a few of my environments running really old computers. I've also seen recommendations of reinstalling ...
3
votes
1answer
116 views
Remote SCCM deployment of Operating Systems
I am currently using sccm 2007 for our software deployment and PXE. During this summer I have been tasked with upgrading 2000+ machines from Windows XP to Windows 7. My plan is to use sccm to ...
0
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0answers
126 views
OS X Server iCal “Getting events from server…”
I'm getting a strange error with my OS X 10.6 Server. I've setup group Wikis to use the calander feature for staff calanders. But when I visit the URL, https://myserver.net/groups/staff/calendar/ I ...
1
vote
2answers
46 views
Build parallel processing grid from 32-bit desktops
I am running simulation on my laptop(Core 2 Duo 1.8Ghz with 4GB RAM running windows 7) which is taking very long time.
I have a couple of unused 32-bit (Core 2 Duo 1.8Ghz with 4GB RAM) desktops.
I ...
6
votes
3answers
281 views
How to cause file system corruption for test purposes?
AFAIK the reasons for file system corruption are as follows:
improper shutdown (hard reset);
hardware failures (bad block on disk, bad disk controller);
improper startup (mounting damaged file ...
2
votes
3answers
63 views
Hypervisor for mixed client and server OSes
I need to replace three old boxes I use for development, running Linux, Win Server and Win XP. Instead of purchasing three new boxes I am thinking of purchasing a single box and virtualizing the OSes. ...
0
votes
2answers
127 views
What is the best method to add a new hard drive in RHEL 5.4?
What is the best method to add a new hard drive in RHEL 5.4 linux machine?
Please go through the following details of linux machine and help me to add one 250 gb hard disk to increase available disk ...
1
vote
1answer
99 views
Why doesn't openSUSE Linux upgrade itself through its software repositories?
openSUSE - fast becoming my favourite Linux distro on the client - doesn't seem to upgrade itself through its own configured software repositories.
Do we know why this is the case? Is it a ...
1
vote
0answers
191 views
Hidden OS dual boot with or without Trueycrypt
As I understand Hidden OS feature in Truecrypt makes your hidden OS interact with all external storages (USB...) read-only. Which is something that will definitely not work for me.
I would like to ...
3
votes
1answer
182 views
Get-ADComputer OperatingSystem property is missing
Although all the online documentation and examples state there should be an OperatingSystem property for the results of Get-ADComputer I don't have one on my Win Server 2008 R2.
Here is all I have on ...
0
votes
2answers
157 views
Which distro support ReiserFS out of the box?
I need an OS distro (Linux, BSD ,or any other open source) which out of the box give option to use ReiserFS for the file system
3
votes
2answers
180 views
OpenSolaris fork?
I have a plan to use OpenSolaris in this year, but now, the development has been discontinued.
Is there any fork of OpenSolaris?
0
votes
1answer
241 views
How can I use Hping for OS detection?
I want use Hping for detecting Host operating system but I can't find how can I do this?
I can do the same job with Nmap like this:
nmap -O Host_IP/Name
3
votes
2answers
58 views
Access rights issue in MAC
I have a Mac machine running Mac OS Version 10.6.6.
I have added my mac machine to a domain controller (which runs Windows version of server) and allow users from domain controller to login.
Because ...
2
votes
1answer
112 views
How many system calls are there in Linux? [closed]
Linux started out with much less system calls then it has now.
Let say in 2.6.32, how many are there?
0
votes
1answer
72 views
Change Slicehost operating system without losing data
I want to change the operating system on a Slicehost VPS. I'd like to do this in the least painful way possible, so I'm trying to figure out a way to do it without building a new slice from scratch ...
3
votes
3answers
245 views
Reasons Why In Place Upgrades Are Bad
I am working on compiling a list of reasons why in place upgrades of software and operating systems are a bad idea. There are many people that I work with that think that it is easier and better to ...
0
votes
4answers
157 views
which Operating system should we use for server [closed]
In a client/server system,which OS should be used on the server side
which is the best OS in the market that is most commonly used now days for the server?
3
votes
2answers
389 views
Ubuntu server vs Enterprise Redhat - questions
I promise I don't mean to cause a war here, but I want to ask why so many people recommend using "enterprise" Linux (specifically Redhat) over something like Ubuntu Lucid. Is this purely for ...
0
votes
1answer
150 views
0
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1answer
506 views
How does Amazon EC2 operating system licensing work?
I'm new to the cloud and EC2 and am wondering how licensing of operating systems works. Specifically, i spent some time looking at amazon machine images (ami's) and some contain windows and sql ...
0
votes
2answers
358 views
recommendations for a lightweight linux distribution for a test server
I'm planning on setting up a test server to experiment with some application servers (tomcat/jboss/...) and with some portals.
Now the machine I've set aside for this is lightweight CPU/GPU wise(Atom ...
-1
votes
1answer
61 views
low level step: what unix/linux do when a process call fork() [closed]
this is a question my teacher is asking and no one know what to reply.
Someone can tell me which are the low level step unix makes to make a fork(); (with system call) and returns?
thanks
1
vote
4answers
364 views
Best Linux OS for 64GB ram server
What is the best Linux OS (server) that can make full utilization of a 64GB ram server machine.?
