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  • Rookie file permissions question

    - by Camran
    What is the ending 'r' for and the leading 'd' for in file permissions on Linux? Example: drwxr-xr-x I know about the user, group, others part, and I know w=write, r=read, x=execute. But I don't know about the leading 'd' and the trailing 'r'. Care to explain? Thanks

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  • Reverse Proxy Question!

    - by Dr Hydralisk
    I know that Nginx does not support .htaccess files, but if you used Nginx as a reverse proxy (is that the correct term, Nginx handles static, Apache handles dynamic) with Apache, would you be able to use .htaccess files then?

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  • Cisco NAT + IPSec + Web Server Configuration Question

    - by zagman76
    Hello - I currently have a Cisco 881W, and it is configured with one of our static IPs to do basic NAT for the network. We also have a web server that needs it's own IP. I configured the NAT for the 2nd IP, however now traffic through our IPSec VPN doesn't route to the web server properly (well, it routes to the internet, rather than through the Tunnel). I followed the instructions here: http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a0080094634.shtml But now the outbound NAT doesn't seem to be working properly - it keeps going to the NAT of the Cisco, and not the designated IP address. If anyone can assist, I would appreciate it greatly. Let me know what you need, and I'll get it to you! Thanks!

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  • Simple electric DC question. Currency consumption

    - by Bobb
    Suppose you have DC power supply and a consumer connected to it (i.e. computer PSU and a hard drive). Suppose PSU which was supplied with the consumer has output 5V 1A. So I assume that the consumer should not consume more than 1A. Suppose the original PSU is broken now and I want to replace it with the one I have which is 5V 10A. My guess is that current is something which depends on the consumer. So if the consumer consumes normally 1A then it will not consume more than that even if it is connected to 10A PSU. In other word - am I right assuming that the consumer will not burn out being connected to a power supply with higher current output? P.S. my understanding is that voltage is something independent from the consumer. If you give it higher voltage it will burn (voltage is from PSU to the consumer). However current must be in opposite - consumer sucks as much current as it need not as much as PSU can provide (of course given that max PSU current is greater than the consumer needs)

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  • Few question on windows explorer properties(win 7)

    - by Nrew
    I've red this article from howtogeek, but it didn't explain this one which is placed in the target portion when you right click on windows explorer and click properties: %windir%\explorer.exe shell:desktop\Inbox And why does local disk E: shows up when I have this one: %windir%\explorer.exe shell:E:\FINAL SAVE DATA I don't really get the code, especially the part in shell: desktop\Inbox. What's that supposed to mean. How do I change it so that when I click on the Windows Explorer shortcut, I get to see this location: E:\FINAL SAVE DATA

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  • greping files question

    - by tearman
    I've been using grep to run a few PII scans and while its finding results, its indeed finding too many false positives. Is there a way that I can tell grep not to trigger a match for a file unless it contains other data? For instance, can I tell it not to trigger an alert on a regex for a SSN unless the file includes text like "ssn" or "social security number"?

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  • SharePoint 2007 licensing question

    - by MadBoy
    I've SharePoint 2007 Enterprise installed. I recently found out I have 10 licenses for SharePoint 2007 Enterprise CAL 40 licenses for SharePoint 2007 Standard CAL Does it mean 50 people can use SharePoint or how licensing works in this case? Just for sake of all information, i was given that system and licenses just wanted to be clear what correct licensing should be.

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  • Windows Server 2008 R2 restore question

    - by user8160
    I'd like to make a backup/image of my machine, so that I may install it if i ever need to. What I mean by image is a snapshot of all of my programs, settings,files, everything, i think this is referred to as a ghost image. I want to be able to restore so I do not have to reinstall everything again. Does the backup/restore utility in Windows Server 2008 R2 do this?

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  • Simple IPV6 Address Question

    - by Daniel
    Hello, I have a /96 block of IPV6 addresses and i'm wondering how i could some how find the next address (Since ipv6 addresses can contain numbers and letters). I know the first address could be in numbers but i've yet to find out how i could really find in some kind of order for that amount of addresses E.G: What technique could i use to make sure i'll actually be able to use all of the addresses

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  • Anti-virus protection question?

    - by DaBaer
    About 4 years ago, I found Kaspersky and have been using the most current version since. Most people try and argue the use of AVG or Avast to me, and there are some very solid reasons I do not go that route. Over the years, I have found Kasp to become bulkier and bulkier, and have had issues setting it up for friends/family/clients. I am just curios on possible recommendations from other users, with my criteria in mind: What I like about Kasp in the past: The license sold in stores in a 3 pack, is considered a commercial license, and emails from Kasp in response to my questions, make it clear that I can do with the 3 licenses that I want, providing I do not use more than 3 installs per Key. So, allowed me to buy 3, 5, and 7 packs, and resell to users at a cheaper cost than what they would pay if they bought their own license. The ability to easily obtain a currently updated .exe for installation on multiple peoples machines. Power of the scan. Kasp has been a good solution for me (even when using a trial license) on cleaning up machines that were badly infected (in which AVG and AVAST were unable to.) Speed of install/update. After a cleanup of malwarebytes, spybot, mcafee stinger, ccleaner, and combofix, I used to be able to get Kasp Int Security installed and updated in around 5 minutes. The issues that I have with the free AV, is strength of protection. In my opinion for someone who is a 'power use' these are good alternatives, because such a user should be trained or knowledgeable enough to be careful and not get themselves in trouble. Most of the users I assist, are too PC ignorant to know any better, and go hogwild on the web. It has been my experience that the number of people coming back to me with spyware/malware/virus issues since I have converted from AVG to Kasp has been cut down to around 20% of what it used to be 4 or 5 years ago. In a perfect world, I could install and use Kasp Internet Security 2008, and be very happy. But this is not the case anymore. So after this long description of what I used, and have used, does anyone have any good recommendations on AV that isn't going to cost me too much per install?

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  • Simple electric DC question. Current consumption

    - by Bobb
    Suppose you have DC power supply and a consumer connected to it (i.e. computer PSU and a hard drive). Suppose PSU which was supplied with the consumer has output 5V 1A. So I assume that the consumer should not consume more than 1A. Suppose the original PSU is broken now and I want to replace it with the one I have which is 5V 10A. My guess is that current is something which depends on the consumer. So if the consumer consumes normally 1A then it will not consume more than that even if it is connected to 10A PSU. In other word - am I right assuming that the consumer will not burn out being connected to a power supply with higher current output? P.S. my understanding is that voltage is something independent from the consumer. If you give it higher voltage it will burn (voltage is from PSU to the consumer). However current must be in opposite - consumer sucks as much current as it need not as much as PSU can provide (of course given that max PSU current is greater than the consumer needs)

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  • question about IP address

    - by baddogai
    i know how IP basically works, and knows that an IP address composed of a network ID portion and a host ID portion, but when I type a IP address ,say "8.8.8.8" into the web browser, i DIDN'T supply any subnet mask information, so how does the browser know where the dividing line is between the network ID and host ID? since 8.8.8.8 may mean 8.8.8.8/8, 8.8.8.8/24 etc. In a nutshell, the IP address I supplied is ambiguous.

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  • question about a sata read/write speed

    - by Joe
    I'm contemplating biting the bullet for an ssd drive in a server, obviously I know it will be MUCH faster than a regular 7200rpm sata2 3gbps drive. The nice thing about ssd's is often they post the read/write speed but that info isn't available for sata's so I'm just curious to know what a typical read/write speed would be for a seagate 120gb 7200rpm drive. I know it fluctuates from manufacturer and model series but I'm just looking for a guestimate.

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  • Google Apps Question

    - by Andy
    I was recently hacked by a person I know who I happened to make an account using my hacked email. I was wondering how I can close off Google Apps without logging in. (I have FTP and such, and I deleted the nameservs already)

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  • nginx + reverse proxy question

    - by Joe Pilon
    Hello, I am using nginx right now for our production sites with the reverse proxy to apache that's on the same server and it works fantastic. I'm wondering if I can do this: Install nginx on box #1 in say Canada and have it reverse proxy http requests to box #2 in a datacenter in the USA. I know there may be some latency or delays in loading the page etc but that would probably be not noticable to the end user especially if both servers have 100mb ports. Box #2 only does the apache requests, all images are served from box #1 via nginx. Now, would the end visitor be able to tell in any which way that there are 2 boxes being used? Box #2 has sensitive data which we can't have stolen in the event of hacking etc, so this method helps keep things a bit more secure. Anyone know if this is possible or have done something similar?

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  • design question for transportation agency/workflow system

    - by George2
    I am designing a transportation agency/workflow system, and it including 3 types of people, customer who requests to transport some stuff, drivers who deliver the stuff, and truck manager who manages transport source/destination truck coordination and communicates/organizes drivers. The system is expected to be a web site, and 3 kinds of people could use the web site to submit request, accept request, monitor status of specific stuff transportation, etc. The web site is more like an open agency or a workflow system. I am wondering whether there are any existing technologies, tools or projects (better to be open source, but not a must) which I could build my application faster based on? I prefer to use .Net technologies, but not a must. Thanks in advance!

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  • Question regarding IPv6 - Solicited-Node Address with a Link local scope

    - by Pulse
    Situation: A small LAN comprising a Windows 7 Ultimate x54 PC, 2 XP Pro x86 PCs and an Asus router.The Win 7 box has IPv6 enabled. There are no other IPv6 enabled devices on the LAN. In my firewall I see numerous requests originating from the Win 7 PC, which are for the Multicast address ff02::1:ff.... which is a Solicited-Node address query and has a scope of 2 which equates to the local link. As far as I knew local link addresses are filtered by routers, hence local link. Given that situation I'm wondering why I'm seeing these queries being generated to various addresses? Any ideas? Thanks.

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  • just another apache to nginx rewrite question

    - by Brandon
    I have the following Apache rewrite directives: RewriteCond %{REQUEST_URI} ^/proxy(/|$) [NC] RewriteCond %{QUERY_STRING} (^|&)uri=(.*?)(&|$) [NC] RewriteRule .* /api/vs1.0/%2 [NC,L] And I'm trying out nginx, so trying to move the rewrites over. I came up with... rewrite ^/proxy(/|$) /api/vs1.0/$2 last; rewrite (^|&)uri=(.*?)(&|$) /api/vs1.0/$2 last; Which is probably grossly incorrect. I'm just a mere web developer, so I was wondering if anyone could lend a hand here. I would be much obliged. I see that I am ignoring the query string specification, but I'm thinking that it shouldn't matter. I only have a vague idea of what the original rewrite is accomplishing, so I haven't much hope here in coming up with something decent, despite reading the relevant documentation for both servers.

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  • Lotus 8.5 Question Attaching file in mail

    - by Boxdog
    A user has lost the ability to attach files in mail. Drag and still drop works, but not toolbar Attach or Actions / Attach file. I have replaced Design template for mail . Backup and reinstalled Lotus. Using only the users notes.ini user.id & names.nsf. but still the function still does not work. Is there a registry key that may control this function or can it be a corrupt *.ini or *.id file?

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  • HP Pavillion dv5 Notebook Repair Question?

    - by HeLp
    My screen only comes on when my screen is half way up and it sometime turns off or turns white I think I need to connect a loose wire from the screen but how do I open the laptop to reconnect the screens loose wires? I have an infinity screen with no screws on it please help

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  • Database implementation question?

    - by gundam
    consider a disk with a sector size of 512 bytes, 2000 tracks/surface, 50 sectors/track, 5 doubled sided platters, average seek time is 10 msec. Assume a block size of 1024-byte is selected. Assume a file that contains 100,000 records of 100-byte each is to be stored on the disk, and NONE of the reocd can be spanned 2 blocks. How many blocks are needed to store the entire file?? If the file is arranged sequentially on disk, how many surfaces are required?? Now, i have calculated that 10,000 blocks are needed to store 100,000 records. But i am not sure how to find out the answer of the surfaces required. I only calculated the capacity of track is 25KB and capacity of surface is 50,000 KB But I don't know how to calculate the number of surfaces... Could anyone help me how to get the answer? Thanks a lot!!

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  • Network config / gear question

    - by mcgee1234
    I have been tasked with setting up a fairly straightforward rack in a data center (we do not even need a whole rack, but this is the smallest allotment available). In a nutshell, 4 to 6 servers need to be able to reach 2 (maybe 3) vendors. The servers needs to be reachable over the internet. A little more detail - the networks the servers need to reach are inside of the data center, and are "trusted". Connections to these networks will be achieved through intra data center cross connects. It is kind of like a manufacturing line where we receive data from one vendor (burst-able up to 200 Mbits), churn through it on the servers, and then send out data to another vendor (bursts up to 20 Mbits). This series of events is very latency sensitive, so much so that it is common practice not to use NAT or a firewall on these segments (or so I hear). To reach the servers over the internet, I plan to use a site to site VPN. (This part is only relevant as far as hardware selection goes). I have 2 configurations in mind: Cisco 2911 (2921) (with the additional wan ports module) and a layer 2 switch - in this scenario, I would use the router also for VPN. Cisco 3560 layer 3 switch to interconnect the networks inside of the data center and an ASA 5510 (which is total overkill, but the 5505 is not rack mountable) as a firewall for the Wan side (internet) and VPN. I envision the setup to be as follows: Internet - ASA - 3560 Vendors - 3560 - Servers The general idea is that the ASA acts as a firewall and VPN device and the 3560 does all the heavy lifting. The first is a fairly traditional setup but my concern is performance. The second is somewhat unorthodox in that the vendors are directly connected to the layer 3 switch without passing through a firewall. Based on my understanding however, a layer 3 switch will perform substantially better as it will do hardware (ASIC) vs. software switching. (Note that number 2 is a little over the budget, but not unworkable (double negative, ugh)) Since this is my first time dealing with a data center, I am not sure what the IP space is going to look like. I suspect I will retain a block(s) of public IPs, vlan them to individual interfaces for the vendor connections and the servers (which will not reachable from the wan side of course) and setup routing on the switch. So here are my questionss: Is there a substantial performance difference between 1 and 2, i.e. hardware based switching on a layer 3 vs a software base on the 2911? I have trolled the internet and found a lot of Cisco literature, but nothing that I could really use to get a good handle. The vendors we connect to are secure and trusted (famous last words) and as I understand it, it is common practice not to NAT or firewall these connections (because of the aforementioned latency sensitivity). But what what kind of latency are we really talking about if I push the data through a router (or even ASA for that matter)? For our purposes, 5 ms will not kill us, 20 or 30 can be very costly. Others measure in microseconds, but they are out of our league. Is there any issues with using public IPs on a layer 3 switch? I am certainly not married to either of these configs, and I am totally open to any ideas. My knowledge (and I use the term loosely) is largely from books so I welcome any advice / insight. Thanks in advance.

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  • Ubuntu server users question

    - by Camran
    I have read this article: https://help.ubuntu.com/9.04/serverguide/C/user-management.html But it doesn't go into depth with the privileges section. I need to know how to set privileges of me (as a user). I am the only user, but I want access to everything, but I don't want to manage my VPS logged in as root. So I am creating a username. Anybody have a list of privileges, what they mean and how to set them? Thanks

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  • Database implementation question? [closed]

    - by gundam
    consider a disk with a sector size of 512 bytes, 2000 tracks/surface, 50 sectors/track, 5 doubled sided platters, average seek time is 10 msec. Assume a block size of 1024-byte is selected. Assume a file that contains 100,000 records of 100-byte each is to be stored on the disk, and NONE of the reocd can be spanned 2 blocks. How many blocks are needed to store the entire file?? If the file is arranged sequentially on disk, how many surfaces are required?? Now, i have calculated that 10,000 blocks are needed to store 100,000 records. But i am not sure how to find out the answer of the surfaces required. I only calculated the capacity of track is 25KB and capacity of surface is 50,000 KB But I don't know how to calculate the number of surfaces... Could anyone help me how to get the answer? Thanks a lot!!

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