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• Can you set CIFS permisions from EMC Command Line?

  - by TJ.

  I am in the process of migrating file shares from my EMC NS-20 to my new VNXe 3100. I am using a RoboCopy script to move the files but am getting errors on some files and folders. I have Domain Admin privileges but when I go to view the security permissions on the folders it says I don't have permissions. I have tried taking ownership to get around the permissions issue but that fails too. So as a last resort can I set permissions on this folder from the EMC console or Web management console?

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• How to throttle your own internet connection?

  - by darkAsPitch

  I am writing a website and want to test it's speed on slower internet connections. I have the unfortunate first world problem of downloading at 100mbps, how can I throttle my own computer's internet connection to 56kbps or 5mbps to give myself an idea of how my users might be downloading my website? EDIT: I am using Windows primarily but also have an ubuntu laptop if the answer is linux oriented.

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• Unable to access Windows 7 shared folder with Windows 98

  - by PabloG

  I'm unable to access a Windows 7 (Windows 7 Pro 64-bit) shared folder from an old Windows 98 box: I tried with: Turning on file and printer sharing Turning on public folder sharing Turning off password protected sharing Sharing the folder with read permissions to Everyone Lowering the encryption to 40-56 bits. The shared folder works fine using it from Windows XP, and even from Linux with CIFS / Samba, but when I try to use it from Win98 with: NET USE X: \\SERVER\SHARE an user / password dialog pops up. I entered the administrator's user / password from my Windows 7 box, but it doesn't work (incorrect password). The same Win98 machine works fine accessing a Windows XP shared folder, so it looks like a Windows 7 networking issue. Any ideas?

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• Statistics comparing WEP/WPA usage on networks?

  - by Cosmo

  Are there any statistics comparing the percentage of networks using varying security protocols?

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• Organising photos using Picasa

  - by Casebash

  I am kind of confused by Picasa's photo organisation system which involves albums on one hand and folders plus collections on the other. Does anyone have a good system for using these to keep everything organised?

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• Can two users both control a third machine simultaneously using Synergy?

  - by Reason

  I've been a Synergy user for some time now, as I use a PC on the left side of my Mac. My girlfriend and I both have our desks on each side of the other, and we'd like to know if it were possible for the both of us to control the PC in the middle, with our own separate mouse & keyboards. Here's a crude drawing of our setup (1) her pc (2) my pc (3) my mac Currently, 3 is running a synergy server, and 2 is running the client. But like I said, I'm wondering if there's a way for 1 & 3 to both control 2 with their own mouse and keyboard. I'd ~love~ to have it set up where we could go even farther, and have both of our mice & keyboards able to control all 3 computers at the same time, for moments when we need to click or press keys for each other. But that seems a little too much to ask! Any thoughts?

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• Test server on a local network with XAMPP

  - by hopscotch1978

  Hi, I'm not very proficient with networks and could use some help. I've got a Win 7 desktop with XAMPP which acts as my local dev machine. I've configured a virtual host on the desktop which I'm able to access fine. If I'm understanding things correctly, the virtual host uses port 80 (<VirtualHost 127.0.0.1:80>). I've just tried to configure a separate Win XP laptop on the local wireless network to connect to the main desktop for testing purposes. I've added the IP address and virtual host name to my Hosts file on the laptop. My virtual host is imaginatively named "virtualhost1". When I type this into my laptop browser, it connects correctly to the main desktop and I get the XAMPP welcome screen. But I can't seem to get to the actual site, just the XAMPP welcome screen. It kind of jumps the browser to http://virtualhost1/xampp/. I think it's a port issue of some sort but I have no idea how to resolve it. I would get the same XAMPP welcome screen on my desktop if I omitted ":80" from the virtual host declaration. On my main desktop, typing "virtualhost1" to the browser address bar gives me the site correctly, not the XAMPP welcome screen. Help would be appreciated. Thank you.

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• SCTP stability and performance?

  - by Andy Faibishenko

  Anyone out there using SCTP? Especially on Solaris and Linux? What are your experiences - is it ready for production?

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• Monitoring multiple sites on a single server using OpsView

  - by Kev

  We have several web servers. On each of these servers there can be ~250 web sites. I need to add a HTTP check for each site on each server. Each site has a reserved host header that we know can always be resolved in the format of: w10000.hostchecks.mycompany.com w10020.hostchecks.mycompany.com w11992.hostchecks.mycompany.com ..and so on.. What I want is for there to be a master ping check on the web server's main IP address and then separate HTTP checks for each of the sites on the server. If the master ping test fails then I want the HTTP tests to cease until the master ping check goes OK. I had a stab at this and tried do the following: Create a parent host that does a ping check on the server's main ip address (e.g. server is named WEB0001). For each of the sites that reside on WEB0001: Create a separate Host with a Primary Hostname of wXXXXX.hostchecks.mycompany.com Make WEB0001 the parent host Add a monitor (HTTP check to a special url that is mapped into each site using a virtual directory: H- $HOSTADDRESS$ -u /__hostcheck/IsAlive.aspx -w 5 -c 10 -p 80 However I find that if I down the parent server (WEB0001) the http checks seem to continue. Am I going about this completely the wrong way?

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• Printing to shared printers across VPN

  - by CYMR0

  I have a program that prints labels at five remote sites. Two sites, aren't working, but the rest are with an identical (as far as I can tell) setup. Using Wireshark, I have determined that the handshaking all goes well, but after the "Open Print File Response" the packet that is sent from the server, doesn't reach the client. But I'm a bit at a loss as to where I go from here. I know the port the packet was sent on (445) isn't being blocked, the RST packet gets sent on the same port and that gets there fine. It's also weird that the three out of five sites are working fine. This has been up and running for years without issue, all that we have changed is our connectivity (from DSL to bonded DSL). But this traffic is over a VPN - so it can't be the ISP interfering either can it? I'm totally stuck, and any help would be much appreciated. Thanks!

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• samba share not on network after upgrading to Ubuntu 12.04LTS.

  - by Sylvain Huard

  I just upgraded an old Ubuntu box to 12.04LTS (machine named A-Ubuntu). This is an upgrade not a format re-install. All the accounts and config were preserved. The basic setup is a local network with 2 Ubuntu machines (let say A-Ubuntu, B-Ubuntu) and a MAC (C-MAC). Before the upgrade, all of them could see each other by their names not only the IP address. The local network has a D-Link Router where everybody is connected with RJ-45 wired etherenet (not wi-fi). Since the A-Ubuntu upgrade, we can't see this machine name on the Network and its name is not on machine list in the D-Link router anymore. We can see it's IP address only. I can't access A-Ubuntu from the other two by its name but I can ping it with its address (192.168.0.109). From A-Ubuntu, I can connect and see the shared samba folders on B-Ubuntu and C-MAC. But from B-Ubuntu and C-MAc, I can't connect to A-Ubuntu. Correct me if I'm wrong but this tells me that Samba should be fine and the real problem is that A-Ubuntu does not advertise its name on the Network so the D-Link does not have it in its table so nobody else finds it. After a lot of googling, I see that it is the job of avahi and mdns to do so. Those packages are running, I checked multiple config files for samba, avahi, mdns to see as if it is like the examples on the WEB and also similar to what I find on the working B-Ubuntu machine. This is the same. I did multiple service restart with samba, avahi, remove the firewall to make sure it does not block the hostname broadcast. I rebooted multiple time to make sure the update I was making were effective. Still, Can't see the A-Ubuntu name on the network. Any idea what it can be?, Where to look next?

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• Ubuntu + latest samba version, symlinks no longer work on share mounted in windows

  - by Roy Rico

  I just apt-getted (apt-got?) the latest software for my Ubuntu 9.10 linux box, and I noticed that samba was the included in the update. After the install, the symlinks in my home directory no longer work when mounted as a drive in my linux box. They worked literally seconds before I did the update. All my normal directories work just fine. Viewing the directory listing on the command line, all the files, dirs & links have the exact same permissions, yet this is the error I get: Location is not available L:\LinkDir is not accessible. Access is denied. I looked on the forums, and i saw this option for the smb.conf follow symlinks = yes wide symlinks = yes unix extensions = no I put those in, but they had no effect. Has anyone had this problem yet?

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• Manage internet connection for a programm

  - by michel

  I'am using a Windows 7 pc with 2 networkcards one for public line and one for internal line behind proxy. is there a way or a software programm where i can manage wich programm(outlook, WM) use wich internet connection or networkcard use the option of interface metric is not where i was looking for. someone also suggest me Zonealarm. but i dislike this programm. thx

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• Wireless to Wireless Transfer Slow on a Linksys WRT54GL

  - by Kyle Brandt

  The Situation: When I try to transfer a file from one computer to another that are both connected via wireless on a WRT54GL (in a office) with dd-wrt firmware I often get bad speeds. In generally they average around 100 kilobytes a second. Either computer can download via wireless from the Internet at at about 2 megabytes a second. The speed is slow with the transfer of one large file. There are about 20 other wireless networks that the computers can see, so there is a lot of noise, but I don't have the equipment to really monitor the frequencies well. But that still seems pretty slow. I thought maybe it was the transmit on each card, but even when they are 5 feet away with a line of sight I still get these speeds. According to Linux both cards are operating at 54g. My Questions: Is this normal for this sort of consumer level wireless equipment? Anything I can do to improve it? why is wireless to wireless transfer slow when everything else isn't? Whats steps might I take to figure out what is happening? For example, are lots of packets not making to the access point requiring retransmissions? Above all, I want to find out what the problem actually is. This may seem odd, but at this point I am more interested in understanding what the problem is than fixing it. What I have tried: I have tried messing with lots of settings. Different channels, xmit power, G-Only, none of which has made anything any better. I've also tried upgrading to newer dd-wrt firmware version and doing a reset to wipe out the settings.

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• Network tools not working with a 3G connection

  - by gAMBOOKa

  Some of my network tools stopped working after I switched to a 3G connection from a DSL one. Cain and Abel's sniffer, Metasploit, even the NMAP scanner. I'm using Windows 7. The 3G device in question is the Huawei E180. Here's the error I get when running NMAP WARNING: Using raw sockets because ppp2 is not an ethernet device. This probably won't work on Windows. pcap_open_live(ppp2, 100, 0, 2) FAILED. Reported error: Error opening adapter: The system cannot find the device specified. (20). Will wait 5 seconds then retry. pcap_open_live(ppp2, 100, 0, 2) FAILED. Reported error: Error opening adapter: The system cannot find the device specified. (20). Will wait 25 seconds then retry. Call to pcap_open_live(ppp2, 100, 0, 2) failed three times. Reported error: Error opening adapter: The system cannot find the device specified. (20) Metasploit's refused connection to my websites too.

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• Windows 7 File shares randomly not accessible from OSx

  - by Zen_Silence

  Hello Everyone!, My setup is I have a windows 7 computer acting as a file server. All my computers can connect to it fine including my mac. The problem is that randomly the mac will get kicked off the file share (even when i am in the middle of using it) and will not be allowed to reconnect to it until i reboot the windows 7 machine. (Rebooting the mac doesn't help) Does anyone know what could be causing this to happen?

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• How to know which program is using the WebClient service?

  - by sork

  Hello, I just found out by using TCPView that one of my svchost.exe had an http connection in "CLOSE_WAIT" to a strange ip address, although no other visible program was running. With the help of Process Explorer I discovered that this svchost was using the WebClient windows service. I'm wondering how I can figure out what program used WebClient to connect to this ip, in order to determine if it's malware.

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• PolyCenter Netview & Console Manager

  - by Dave

  Hi, I'm looking to replace Polycenter Newview and Polycenter Console Manager with supported products. I'm starting with this list. Do you have any recommendations, either from that list or elsewhere?

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• Roughly cutting Fibre Cables

  - by Bryan

  I recently asked a question about which type of Fibre optic cable to use for my installation. We have now found a cable type and supplier and I'm about to order the cable (OM3, Tight Buffered, 12 Core), however I have a further question: We are shortly moving in to a new building (still being constructed) and we are about to get a window in which we will be able to run any cabling that we need. How should I roughly cut the fibre? Can I just use some heavy shears to cut through the cable? I'm aware that doing so will damage the ends, but will the damage be limited to the ends, or could the cracks/fractures continue up the length of the cable? p.s. I have already allowed for several metres of extra cable at each end, and I am going to get a specialist in to terminate the fibres.

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• Play system sounds from one computer through another computer's speakers?

  - by kevinconner

  I have a Mac and a Windows PC at work. I use both at the same time with Synergy and SynergyKM, which is a great setup for me. The Mac has built-in speakers and the PC has a sound card, but no speakers. I don't want to get speakers for use at work; instead I'd rather just have all sounds from both computers play through the Mac's speakers. Is there some sort of audio service I can run on each computer to accomplish that? I would want: System alert sounds, like you configure in the Control Panel Sounds from videos in a web browser, including from Flash

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• Samba Public and "Dropbox" folder

  - by cb0

  I want to create a special Group Directory structure for my Users. /home/groupA <-- home folder for groupA where every user of groupA can create/edit/delete files /home/groupA/Public <-- Public Folder where every user can read files /home/groupA/Public/Dropbox <-- Folder where every user can write files but only users of groupA can access this directory and create/edit/delete files Now I have: 4 drwxrwx--t 10 nobody groupA 4096 Feb 18 15:44 /home/groupA 4 drwxrwxr-x 7 nobody groupA 4096 Feb 18 15:40 /home/groupA/Public/ 4 drwxrwx-w- 10 nobody groupA 4096 Feb 18 15:55 /home/groupA/Public/Dropbox My smc.confcontains the following entrys [groupA] path = /home/groupA comment = Folder for users of groupA browseable = yes read only = no create mask = 0770 directory mask = 0770 force group = groupA [groupA Public] path = /home/groupA/Public comment = Admins Public Browseable = yes write list = @groupA create mask = 0775 directory mask = 0775 [groupA DropBox] path = /home/groupA/Public/Dropbox comment = groupA Dropbox read only = no valid users = @groupA browseable = yes inherit owner = yes directory mode = 3770 force directory mode = 3770 The working part is: Users of groupA can access and fully use /home/groupA All Users can access /home/groupA/Public/ and read the files from there. My problem is that all users, even those who are not in groupA can access the /home/groupA/Public/Dropbox and see all files. I just want them to be able to put files in there but not see the content of the folder and prohibit them from deleting any files in there. Does anybody have a clue what could be the problem and how I can fix it ?

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• Windows IIS test server setup

  - by chopps

  hello everyone, I picked up a new server to do some testing and need of a little help in setting up my environment at home. Here is what I would like to do: The test server will be used to test new code and configurations for a SaaS product. I would like from my laptop to enter www.acme.com and have it hit the server. The server is connected to a wireless router. I have windows server 2008 with IIS running on an an IP of 192.168.1.4. What is the best way to set this up? I want to hit the test server for www.acme.com and not go out to the internet. Do i need to mess with the LMHosts file? Thanks for the help. Im sure its easy but have never done this before.

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• Installing a Wl-138g wireless NIC on ubuntu server

  - by Narcolapser

  So I have this little server that I've been working on as a hobby. But due to changes in living arrangements I have move and it won't have access to a wired lan. So I need to install a wireless adapter i had sitting around. But most tutorials I have run across are either out dated, or about ubuntu desktop and talk about things using a GUI. So my question is firstly is there a utility for identifying and downloading drivers for new hardware. that would save my having this problem in the future. If not, how do i go about installing said wireless NIC? ~N

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• Windows File Sharing - Long Initial Delay

  - by Isaac Sutherland

  I have two Windows 7 machines connected to a router. I created a shared folder on machine A, and I can access it from machine B. The transfer speed is great. However, there is sometimes a long initial delay when I try to access the shared folder from machine B. I'll click to open the folder, and windows explorer pauses for a few minutes before actually loading the contents of the folder. After it loads, however, I can navigate the subfolders and edit files with no noticeable delay. Then, some time later, I will get the huge delay on saving a file, after which subsequent saves have no delay. What is the problem here, and how can I fix it?

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• Real benefits of tcp TIME-WAIT and implications in production environment

  - by user64204

  SOME THEORY I've been doing some reading on tcp TIME-WAIT (here and there) and what I read is that it's a value set to 2 x MSL (maximum segment life) which keeps a connection in the "connection table" for a while to guarantee that, "before your allowed to create a connection with the same tuple, all the packets belonging to previous incarnations of that tuple will be dead". Since segments received (apart from SYN under specific circumstances) while a connection is either in TIME-WAIT or no longer existing would be discarded, why not close the connection right away? Q1: Is it because there is less processing involved in dealing with segments from old connections and less processing to create a new connection on the same tuple when in TIME-WAIT (i.e. are there performance benefits)? If the above explanation doesn't stand, the only reason I see the TIME-WAIT being useful would be if a client sends a SYN for a connection before it sends remaining segments for an old connection on the same tuple in which case the receiver would re-open the connection but then get bad segments and and would have to terminate it. Q2: Is this analysis correct? Q3: Are there other benefits to using TIME-WAIT? SOME PRACTICE I've been looking at the munin graphs on a production server that I administrate. Here is one: As you can see there are more connections in TIME-WAIT than ESTABLISHED, around twice as many most of the time, on some occasions four times as many. Q4: Does this have an impact on performance? Q5: If so, is it wise/recommended to reduce the TIME-WAIT value (and what to)? Q6: Is this ratio of TIME-WAIT / ESTABLISHED connections normal? Could this be related to malicious connection attempts?

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