I want to measure the overhead in creating a TCP connection.
I know of many tools like hping and netperf, but they seem oriented at measuring latency.
I want to know how long the 3-way handshake takes, and allocating any buffers, etc., and then closing it. So I want to open a real, legitimate TCP connection, and then close it.
Are there any tools that will do that and help me measure performance?
Recently, an in-house Microsoft Small Business Server 2011 was installed where I work. Unfortunately, our buildings have a bad electrical power supply and we suffer frequent outages. We have a large percentage of staff working off-site. Now when the power goes off here, everyone everywhere loses email functionality.
I have been assigned to research the possibility of routing our email to Google Apps while maintaining LAN functions on the SBS. I haven't worked with Microsoft products for several years now, so do not know how SBS is structured.
Can anyone here tell me if this is possible, or point me to good resources that explain our options?
Win7 Home Prem 32-bit
I use Firefox as my browser of choice but my computer came with Internet Explorer pre-installed.
Is it safe to remove Internet Explorer from my computer completely or will this cause any problems?
I have a specific use case where I would really like to be able to change a user's password with a single command with no interactivity. This is being done in a safe fashion (over SSH, and on a system with only one user able to be logged in), so it's fine to expose the new password (and even the old one, if necessary) on the command line. FWIW, it's a Ubuntu system.
I just want to avoid having to add something Expect-like to this system for just this one task.
I want to download the following subdomain with the recursive option using wget:
www.example.com/A/B
So if that URL has links to www.example.com/A/B/C and www.example.com/A/B/D, these two should also be downloaded.
But I don't want anything outside the www.example.com/A/B subdomain to be downloaded. For example, if www.example.com/A/B/C has a link back to www.example.com, the page www.example.com should not be downloaded.
What wget command should I use?
I'd like every tweet about certain topics saved, so tweets with a certain hashtab, word, user, etc.
To reiterate, if I see a tweet, I want to save it forever and ever.
I'm running ubuntu linux, but a web app is fine.
For a programming project I would like to access the temperature readings from my CPU and GPUs. I will be using C#.
From various forums I get the impression that there is specific information and developer resources you need in order to access that information for various boards.
I have a MSI NF750-G55 board. MSI's website does not have any of the information I am looking for. I tried their tech support and the rep I spoke with stated they do not have any such information.
There must be a way to obtain that info.
Any thoughts?
My parents have a reasonably ancient Visioneer 4400 USB scanner. The power supply has died. (I figured this out because I have a hard drive enclosure with a very similar power supply, and it worked.)
Where can I find a replacement one?
We have a Dell 2950 with PERC and 14 external SAS 15K 73GB drives. An Oracle database job takes 3 hours to run with the drives set as hardware RAID 10 (striped across 7 mirrored pairs). The same job with the drives in RAID 1 takes only 1 hour. OS is Win 2008 R2 I think.
Before we change the RAID level (with considerable downtime) on the production box, does anyone know why we're seeing this odd result, and if there's a better way to fix it?
I have a growing number of PCs and laptops in my home that need a backup solution. My question is 2 fold:
Most commercial backup vendors
appear to license by the machine,
are there any products that give a
license that can be used on all your
machines, without a per machine
cost?
An alternative is to have a
centrally controlled back up
strategy controlled from a single PC
with an attached hard drive that can
back up other machines on the
network. What backup software is
suitable for this approach? Will
this software be windows/Linux
interoperable?
I've searched for duplicate questions but don't see anything that addresses the multi machine/cost issue.
OSs in network will be Windows (XP, Vista, 7) and Linux variants.
Not pattern to when machines will be switched on.
On my Exchange server I can drop appropriately formatted text files in the "pickup" directory and Exchange will process them.
I'd like to split this bulk mailing functionality onto another box to protect our business mail IP from the bumpy ride that our monthly newsletter gives us.
I should note at this point that the mailing is opt-in with an opt out link included and only goes to people who pay to be a member of our organisation
The ideal solution for me would be to add a linux box to use just for this purpose so we're not paying for Exchange licenses.
So is there a linux equivalent of the Exchange pickup directory?
On my Exchange server I can drop appropriately formatted text files in the "pickup" directory and Exchange will process them.
I'd like to split this bulk mailing functionality onto another box to protect our business mail IP from the bumpy ride that our monthly newsletter gives us.
I should note at this point that the mailing is opt-in with an opt out link included and only goes to people who pay to be a member of our organisation
The ideal solution for me would be to add a linux box to use just for this purpose so we're not paying for Exchange licenses.
So is there a linux equivalent of the Exchange pickup directory?
i'm adding some hard disk on my computer.when i on my computer the extra hard disk was detected by my computer but when i open My Computer the extra hard disk was not on there. What happen?
FC11 beta upgraded to FC12. When I do yum list I see listing on the far right column as follows: 'fedora' 'installed' and '@fedora'. Previously I never had '@fedora' and only seemed to appear when I upgraded from FC11-FC12.
Also when i look at the kernels installed I have
kernel-PAE 2.6.30-0.97.rc.fc12 installed
kernel-PAE 2.6.31.5-127.fc12 @fedora
Why do I have two entries?
I know i can use Domain Tools and the like for checking if a domain name is available but is there some way to be alerted when a certain domain name becomes available that is currently taken?
When I plug my external USB 2TB hard drive into my windows 7 box, my RAM usage climbs up to all 4 Gigs (but in task manager it shows that all process are small) and the hard drive is churning like crazy. My CPU is only about 20% utilized
All I can think of is there is a Virus scanner or an indexer running like crazy. I've tried to kill all virus scanners (AVG and Windows Security Essentials) and it still keeps going.
My computer is completely unusable as everything is constantly swapping.
I've tried leaving it on for 2 days now and it still hasn't finished whatever it was doing.
Any ideas?
when i try converting a film it goes through the full process it even says operation complete afther burning but disks still turn out to be blank i have used convert x and imtoo avi convert to dvd how can i solve this
I've checked MSDN, and the W3C format, but nothing seems to explain what causes IIS to output "..." in the "cs(Cookie)" column.
My assumption is that the cookie is "too big", but I'd like to know for sure and also what is the limit before IIS outputs "..."?
Anything built-in? (E.g. command line tools.) Any well-regarded software?
Update: excellent suggestions, thanks guys. I like The Unarchiver, but vote up your favourite, or add it as an answer if it isn’t there.
I have a hard time finding a good question title - let me just show you what I have and what the desired outcome is. I hope this can be done in SQL (I have SQL Server 2008).
1) I have a table called Contacts and in that table I have fields like these:
FirstName, LastName, CompanyName
2) Some demo data:
FirstName LastName CompanyName
John Smith Smith Corp
Paul Wade
Marc Andrews Microsoft
Bill Gates Microsoft
Steve Gibbs Smith Corp
Diane Rowe ABC Inc.
3) I want to get an intersecting list of people and companies, but companies only once. This would look like this:
Name
ABC Inc.
Bill Gates
Diane Rowe
John Smith
Marc Andrews
Microsoft
Smith Corp
Steve Gibbs
Paul Wade
Can I do this with SQL? How?
How can I create PHP to search the testing.txt file for each name in the database table and replace the name with the database table id?
So that the text file looks like this:
3 | 1 | 4 | 5
2 | 3 | 6
4 | 5 | 2
and so forth an so on...
I have a mysql table called "nameslist" that looks like this:
---------------------
id | name
---------------------
1 | bob
2 | john
3 | tom
and so forth an so on...
I have a text file called "testing.txt" that looks like this:
tom | bob | mary | paul
john | tom | rachel
mary | paul | john
and so forth an so on...
I have a variable containing:
<col p1="Newman" p2="Paul"/>
...
<col p1="Newman" p2="Paolo"/>
<col p1="Newman" p2="Paul"/>
i wold in output a table with in the first column the value of p2 and in the second the number of time it appear. For each value of p2 should i have only a row.
<table>
<tr><td>p2</td><td>num</td></tr>
<tr><td>Pault</td><td>2</td>
...
<tr><td>Paolo</td><td>1</td>
</table>