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• How to change the setting for a network device reported by ethtool, specifically Speed, on VM?

  - by Ramadheer Singh

  This is related to these two questions, although they don't answer my question. The machines are RHEL6. 1.ethtool not showing all the properties 2.changing network speed to 1000Mb/s Output on VM: [root@foo ~]# ethtool eth0 Settings for eth0: Current message level: 0x00000007 (7) Link detected: yes Output on Real Hardware: (interested in Speed) # ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes ***Speed: 1000Mb/s*** Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: d Wake-on: d Link detected: yes if there's anyway I can set this in VM, please suggest.

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• Smoothwall: How to stop live network traffic displayed in terminal?

  - by Jakobud

  For our network we are working on building a new firewall box and we just installed Smoothwall on it to test it out. When I start up the box, before the login prompt even appears, all of the live IP traffic is appearing in the terminal (source/destination IPs, MACs, Ports, etc). I wait for the boot sequence to finish, but all I see is this IP traffic. The login prompt never comes up. I finally get sick of waiting and press CTRL + C and it says "Entering Run Level 3" and then I get a login prompt finally. Once I login, the IP traffic continues to fly through the terminal even as I'm trying to type commands. How do I turn this stuff off? Is this the default setting for Smoothwall to have all this IP traffic going by on the screen? It essentially renders using the terminal to being useless.

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• What is the network address (x.x.x.0) used for?

  - by Shtééf

  It appears to be common practice to not use the first address in a subnet, that is the IP 192.168.0.0/24, or a more exotic example would be 172.20.20.64/29. The ipcalc tool I frequently use follows the same practice: $ ipcalc -n -b 172.20.20.64/29 Address: 172.20.20.64 Netmask: 255.255.255.248 = 29 Wildcard: 0.0.0.7 => Network: 172.20.20.64/29 HostMin: 172.20.20.65 HostMax: 172.20.20.70 Broadcast: 172.20.20.71 Hosts/Net: 6 Class B, Private Internet But why is that HostMin is not simply 64 in this case? The 64 address is a valid address, right? And whatever the answer, does the same apply to IPv6? Perhaps slightly related: it also appears possible to use a TCP port 0 and an UDP port 0. Are these valid or used anywhere?

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• Laptop connectd to 2 VPNs (1st for Internet over WiFi, 2nd to access shared folders on another network) is failing to route traffic over 2nd VPN

  - by Triynko

  I set up a VPN on Windows Server 2008 through its routing and remote access services. I connected to the VPN, and configured the client to allow for split tunneling (Internet traffic goes to my default gateway, and traffic directed to the VPN server goes through the VPN gateway). I had to adjust the routing table, adding an entry to ensure traffic to my VPN server goes through the tunnel by running the command "route add [VPN.IP] mask 255.255.255.255 [VPN.GATEWAY.IP] IF [VPN_INTERFACE_#]". Adding the correct route makes everything work flawlessly on all my machines, except for one. The problematic machine is a laptop that's not directly connected to a network. It connects to WiFi, and then connects to a VPN to obtain internet access. Finally, it connects to the target VPN server for file sharing. The "route add" trick doesn't work for that laptop, I'm assuming because it's connected to two VPNs, and I'm getting the routing wrong. Can anyone familiar with routing explain what routes I may need to add?

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• Which is the cheapest machine where I can run linux and plug in some webcams? (and with network inte

  - by marc.riera

  I'm looking for a very cheap machine to run a linux distro for security(anti-thief) software. I would like to be able to connect to the network and a couple of webcams. May be ip-webcams or usb-webcams. The idea is having a machine with batteryes, laptop style, but there is no need to have a display/monitor attatched all the time. I'm planning to spend no more than 200$, in case it also gets stolen. Any advice on what to buy? (all modifications to this security plan are welcome) Thanks.

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• How do I block requests to Apache on a network interface?

  - by Dmitry Dulepov

  The problem: I have a local Apache instance on my Macbook Pro. I need it to listen on all network interfaces except en0 and en1 (basically, listen on lo and vnicX from Parallels). I know about "Listen *:80" but this is not a solution in this particular case. The only thing I could imagine if to use OS X firewall to block incoming requests to Apache on those interfaces. But I could not find any working examples and could not make such rules myself. Could somebody help, please?

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• What are the methods of separating network spaces in a LAN?

  - by dash17291

  Please detail me the methods. My thoughts: put the servers in separate (sub)networks the servers are forced to go through the firewall but no NAT is required assign more IP addresses to the internal interface of the server choosing gateway addresses from the clients and servers IP address ranges split DNS Netfilter/{iptables, ipset} could be heavily involved, I'm talking about Linux servers. See for example: Destination NAT Onto the Same Network from internal clients Please do not explain what is NAT or DNS. This is a theoretical question, but my poor English knowledge prevent me to describe it in a fancy fashion.

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• Error code 0x80070035. The network path was not found

  - by user144606

  My system is connected with a local LAN connection with 30 PC's. I'm not able to access the shared drive in the network, but I'm able to ping the IP address in which the drive is present. I have checked to start all the services, which are to be started and i have check the TCP/UDP ports also, but even after that I'm not able to access the drive, the same error message is being displayed again and again. Please help me to rectify the problem. I'm trying to solve the problem for the last 1 week. I have tried various solutions which are present in various web site, but I'm not able to find a proper solution. So please help me.

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• How do I connect my Samsung 6 Series TV to network through a proxy?

  - by JGC

  I have a Samsung 6 series LCD TV which can connect to internet by LAN. When I connect my TV to my Windows 7 laptop which get its internet from AS share it, it can connect to the Internet. My TV can connect to YouTube, but in my country this site is filtered. I want to use an antifilter(proxy) program to bypass the filtering. The problem is the TV does not recognize the proxy port or program. How can I configure the TV or the network to use the proxy?

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• What command line tools for monitoring host network activity on linux do you use?

  - by user27388

  What command line tools are good for reliably monitoring network activity? I have used ifconfig, but an office colleague said that its statistics are not always reliable. Is that true? I have recently used ethtool, but is it reliable? What about just looking at /proc/net 'files'? Is that any better? EDIT I'm interested in packets Tx/Rx, bytes Tx/Rx, but most importantly drops or errors and why the drop/error might have occurred.

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• Network Bypass - PC Registration Page - I'm trying to bypass a college Registration Page so I can ac

  - by Kamron3

  What I'm trying to do: Connect to the internet without registering But! Here's my problem: I can't connect. I used to be able to, now when I try to connect it says "Server not found." I can connect just fine on my other Laptop. I did a test as well. I used a LAN USB adapter and could connect fine, then now I can't connect again. Possibly because I am using uTorrent to download stuff, but I want to connect again Is there anyway I can use some sort of "virtual adapter"-type of connection where it masks my actual adapter? How can I connect to the connection without having to buy more and more Network USB Adapters? Thanks much!

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• Can someone please explain these Network Activity entries are? (resource monitor windows 7)

  - by Keyes

  The first one is the address microsoftword.com.br. What is this? I noticed when I connected windows to the internet briefly, and it went away soon after. when I typed the address into my tablet, it redirected to bing with the search "microsoftword com" with MSSRPD at the end of the address. The other unknowns seemed to appear when my brothers laptop was connected to the network. Is that normal? Usually if I disconnected and reconnected they would appear, but I noticed when I had disconnected and reconnected to try it didn't happen as he wasn't connected. I'm concerned about the microsoftword one is. Is it legitimate? The svchost that associated with is a legit svchost image.

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• How can 2 or more instances of the same program to communicate in local network?

  - by user1981437

  I want to create program which will be in use for few computers connected in local network. Basically the program aim is to keep track of all tables in a bar ( lets say ), which are reserved. When some user book a table as reserved the program should broadcast the table number to all other Pc's and mark the table as reserved. Since all computers use the same program, how is possible to create communication between all of them ? Should i use sockets to achieve this? If it matters, all of the computers have installed Linux OS,and the app will be developed in ruby,perl or php. Thank you.

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• Server's network capabilities are going into some sort of sleep mode?

  - by F4r-20

  I'm having trouble with a server (Windows Server 2008 R2) on my network. It is going down for short periods at a time, but not very often. The interesting thing: If I ping the server from my computer (we'll call this client-x) using the -t switch, I will continuously get no reply. However the second I ping client-x from the server, I can see the previous ping pick up a reply? It's almost as if pinging client-x from the server, wakes up the networking capabilities? Has anybody got any idea what is going on here?

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• Good free way to clone a hard drive or a partition and send the image over the network (through FTP, Windows file sharing, "anything")?

  - by Deleted

  What I ideally would like is a free software solution which can: Boot from a CD/DVD/USB-stick and Clone a complete hard drive or a partition and Send the resulting image file over the network through Windows file sharing (SMB, I could use SAMBA on my server to receive the image) or through FTP or through SFTP or through SCP It should work with Linux and Windows file-systems (where specific file system support is necessary) Is there anything good out there like this? I know Wikipedia lists a lot of cloning software. But I'm looking for a personal recommendation which you have used yourself, as I find it more credible (I'll see from the upvotes if the answer is liked by a lot of visitors).

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• Printer on different network(IP range), can i print to it?

  - by John

  Heres my situation, client PC is on the same network as the printer to start with: 192.168.1.X Thats fine and printing is fine, however our clients are required to connect to the VPN using the installed cisco client - this creates a virtual adapter and now the PC is connected to a 10.0.0.X IP range and can no longer see the printer, thus my problem! If I do an IPCONFIG/ALL the PC still has the 192.168.1.X address but it I can't ping anything on it. Is it possible to use both IP ranges at the same time?

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• Will a `wireless n` network adapter work `wireless g` router?

  - by ShoeLace1291

  I have verizon fios internet service. I believe they use a Wireless G router, but I just have one question. I currently am using a 54mbps wireless pci adapter in my Windows 7 custom build. It drops the internet connection all the time and is starting to get very irritating. I'm thinking about buying a new one, but all the 300mbps cards on newegg are wireless n. So my question is, will a wireless n network adapter make a difference with a wireless g router?

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• Are there any open-source simple network monitoring applications? [duplicate]

  - by scottm

  This question already has an answer here: What tool do you use to monitor your servers? 73 answers I am debugging a problem with one of our systems. Every Sunday, it stops communicating with another server. If we reboot both servers, communication works again. I was wondering if there are any small footprint apps that monitor TCP port availability and network connectivity, possibly logging any downtime. I'd also like it to be open source if possible, but if there is another solution that is proprietary, I'd like to hear about it also.

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• AvalonDock + UserControl + DataGrid + ContextMenu command routing issue

  - by repka

  I have this kind of layout: <Window x:Class="DockAndMenuTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:ad="clr-namespace:AvalonDock;assembly=AvalonDock" Title="MainWindow" Height="350" Width="525"> <ad:DockingManager> <ad:DocumentPane> <ad:DockableContent Title="Doh!"> <UserControl> <UserControl.CommandBindings> <CommandBinding Command="Zoom" Executed="ExecuteZoom" CanExecute="CanZoom"/> </UserControl.CommandBindings> <DataGrid Name="_evilGrid"> <DataGrid.Resources> <Style TargetType="DataGridRow"> <Setter Property="ContextMenu"> <Setter.Value> <ContextMenu> <MenuItem Command="Zoom"/> </ContextMenu> </Setter.Value> </Setter> </Style> </DataGrid.Resources> </DataGrid> </UserControl> </ad:DockableContent> </ad:DocumentPane> </ad:DockingManager> </Window> Briefly: ContextMenu is set for each DataGridRow of DataGrid inside UserControl, which in its turn is inside DockableContent of AvalonDock. Code-behind is trivial as well: public partial class MainWindow { public MainWindow() { InitializeComponent(); _evilGrid.ItemsSource = new[] { Tuple.Create(1, 2, 3), Tuple.Create(4, 4, 3), Tuple.Create(6, 7, 1), }; } private void ExecuteZoom(object sender, ExecutedRoutedEventArgs e) { MessageBox.Show("zoom !"); } private void CanZoom(object sender, CanExecuteRoutedEventArgs e) { e.CanExecute = true; } } So here's the problem: right-clicking on the selected row (if it it was selected before the right click) my command comes out disabled. The command is "Zoom" in this case, but can be any other, including a custom one. If I get rid of either docking or UserControl around my grid there are no problems. ListBox doesn't have this issue either. So I don't know what's at fault here. SNOOP shows that in cases when this propagation fails, instead of UserControl, CanExecute is handled by PART_ShowContextMenuButton (Button), which is part of docking header. I've had other issues with UI command propagation within UserControls hosted inside AvalonDock, but this one is the easiest to reproduce.

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• C# some sort of plugin system

  - by nLL

  Hi, I am a mobile web developer and trying to monetize my traffic with mobile ad services and i have a problem. First of all to get most of out of your ads you usually need to do server side request to advert company's servers and there are quite few ad services. Problem starts when you want to use them in one site. All have different approaches to server side calls and trying to maintain and implement those ad codes becomes pain after a while. So I decided to write a class system where i can simply create methods for every company and upload it to my site. So far i have public Advert class public AdPublisher class with GetAd method that returns an Advert public Adservice class that has Service names as enum I also have converted server request codes of all ad services i use to classes. It works ok but I want to be able to create an ad service class upload it so that asp.net app can import/recognize it automatically like a plugin system. As I am new to .net I have no idea where to start or how to do it. To make thing clear here are my classes namespace Mobile.Publisher { public class AdPublisher { public AdPublisher() { IsTest = false; } public bool IsTest { get; set; } public HttpRequest CurrentVisitorRequestInfo { get; set; } public Advert GetAd(AdService service) { Advert returnAd = new Advert(); returnAd.Success = true; if (this.CurrentVisitorRequestInfo == null) { throw new Exception("CurrentVisitorRequestInfo for AdPublisher not set!"); } if (service == null) { throw new Exception("AdService not set!"); } if (service.ServiceName == AdServices.Admob) { returnAd.ReturnedAd = AdmobAds("000000"); } return returnAd; } } public enum AdServices { Admob, ServiceB, ServiceC } public class Advert { public bool Success { get; set; } public string ReturnedAd { get; set; } } public partial class AdService { public AdServices ServiceName { get; set; } public string PublisherOrSiteId { get; set; } public string ZoneOrChannelId { get; set; } } private string AdmobAds(string publisherid) { //snip return "test" } } Basically i want to be able to add another ad service and code like private string AdmobAds(string publisherid){ } So that it can be imported and recognised as ad service. I hope i was clear enough

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• Weird routing issue (updated)

  - by smccloud

  I just updated the route tables due to a mistake on my part. I am working on getting networking working correctly on a cluster of 14 virtual servers at a customer site. 11 of them work fine for routing and 3 don't work correctly for their administrative network (172.28.56.0). All are running Windows Web Server 2008R2. Default gateway is set on the production network (172.28.58.0) and not on the administrative network (handled with persistent static routes). On a working server, route print gives me the following (MACs redacted) =========================================================================== Interface List 11...XX XX XX XX XX XX ......Intel(R) PRO/1000 MT Network Connection 13...XX XX XX XX XX XX00 0c 29 85 b2 98 ......Intel(R) PRO/1000 MT Network Connection #2 1...........................Software Loopback Interface 1 12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter 14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2 15...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface =========================================================================== IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 172.28.58.1 172.28.58.11 266 10.18.1.22 255.255.255.255 172.28.58.1 172.28.58.11 11 10.32.0.0 255.255.0.0 172.28.56.1 172.28.56.201 11 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 172.28.34.0 255.255.255.0 172.28.56.1 172.28.56.201 11 172.28.42.0 255.255.255.0 172.28.56.1 172.28.56.201 11 172.28.56.0 255.255.255.0 On-link 172.28.56.201 266 172.28.56.0 255.255.255.0 172.28.56.1 172.28.56.201 11 172.28.56.201 255.255.255.255 On-link 172.28.56.201 266 172.28.56.255 255.255.255.255 On-link 172.28.56.201 266 172.28.58.0 255.255.255.224 On-link 172.28.58.11 266 172.28.58.0 255.255.255.224 172.28.58.1 172.28.58.11 11 172.28.58.1 255.255.255.255 172.28.58.1 172.28.58.11 11 172.28.58.11 255.255.255.255 On-link 172.28.58.11 266 172.28.58.31 255.255.255.255 On-link 172.28.58.11 266 172.28.60.0 255.255.255.0 172.28.56.1 172.28.56.201 11 172.28.63.0 255.255.255.0 172.28.56.1 172.28.56.201 11 192.168.0.0 255.255.0.0 172.28.56.1 172.28.56.201 11 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 172.28.56.201 266 224.0.0.0 240.0.0.0 On-link 172.28.58.11 266 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 172.28.56.201 266 255.255.255.255 255.255.255.255 On-link 172.28.58.11 266 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 172.28.56.0 255.255.255.0 172.28.56.1 1 172.28.63.0 255.255.255.0 172.28.56.1 1 192.168.0.0 255.255.0.0 172.28.56.1 1 172.28.60.0 255.255.255.0 172.28.56.1 1 10.32.0.0 255.255.0.0 172.28.56.1 1 172.28.34.0 255.255.255.0 172.28.56.1 1 172.28.42.0 255.255.255.0 172.28.56.1 1 0.0.0.0 0.0.0.0 172.28.58.1 Default =========================================================================== IPv6 Route Table =========================================================================== Active Routes: If Metric Network Destination Gateway 1 306 ::1/128 On-link 1 306 ff00::/8 On-link =========================================================================== Persistent Routes: None On one of the non-working server, route print gives me the following (MACs redacted) =========================================================================== Interface List 11...XX XX XX XX XX XX ......Intel(R) PRO/1000 MT Network Connection 13...XX XX XX XX XX XX ......Intel(R) PRO/1000 MT Network Connection #2 1...........................Software Loopback Interface 1 12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter 14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2 16...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface =========================================================================== IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 172.28.58.1 172.28.58.21 266 10.32.0.0 255.255.0.0 172.28.56.1 172.28.56.211 11 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 172.28.34.0 255.255.255.0 172.28.56.1 172.28.56.211 11 172.28.42.0 255.255.255.0 172.28.56.1 172.28.56.211 11 172.28.56.0 255.255.255.0 172.28.56.1 172.28.56.211 11 172.28.56.211 255.255.255.255 On-link 172.28.56.211 266 172.28.58.0 255.255.255.0 172.28.58.1 172.28.58.21 11 172.28.58.0 255.255.255.224 On-link 172.28.58.21 266 172.28.58.21 255.255.255.255 On-link 172.28.58.21 266 172.28.58.31 255.255.255.255 On-link 172.28.58.21 266 172.28.60.0 255.255.255.0 172.28.56.1 172.28.56.211 11 172.28.63.0 255.255.255.0 172.28.56.1 172.28.56.211 11 192.168.0.0 255.255.0.0 172.28.56.1 172.28.56.211 11 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 172.28.56.211 266 224.0.0.0 240.0.0.0 On-link 172.28.58.21 266 255.255.255.255 255.255.255.255 On-link 127.0.0.1 06 255.255.255.255 255.255.255.255 On-link 172.28.56.211 266 255.255.255.255 255.255.255.255 On-link 172.28.58.21 266 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 172.28.56.0 255.255.255.0 172.28.56.1 1 172.28.60.0 255.255.255.0 172.28.56.1 1 172.28.63.0 255.255.255.0 172.28.56.1 1 172.28.34.0 255.255.255.0 172.28.56.1 1 172.28.42.0 255.255.255.0 172.28.56.1 1 192.168.0.0 255.255.0.0 172.28.56.1 1 10.32.0.0 255.255.0.0 172.28.56.1 1 0.0.0.0 0.0.0.0 172.28.58.1 Default 172.28.58.0 255.255.255.0 172.28.58.1 1 =========================================================================== IPv6 Route Table =========================================================================== Active Routes: If Metric Network Destination Gateway 1 306 ::1/128 On-link 1 306 ff00::/8 On-link =========================================================================== Persistent Routes: None I am at a complete loss why the non-working servers have no On-link route for 172.28.56.0. Does anyone have any suggestions on what I should be looking at to figure this out? Also, I do have "physical" access to the console if needed through vSphere Client.

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• cannot access a site from Mac OSX Lion but can from other machines on network?

  - by house9

  SOLVED: The issue is with the hamachi client, hamachi is hi-jacking all of the 5.0.0.0/8 address block http://en.wikipedia.org/wiki/Hamachi_(software)#Criticism http://b.logme.in/2012/11/07/changes-to-hamachi-on-november-19th/ The fix on Mac LogMeIn Hamachi Preferences Settings Advanced Peer Connections IP protocol mode IPv6 only (default is both) If you can only connect to some of your network over IPv4 this 'fix' will NOT work for you ----- A few weeks ago I started using a service - https://semaphoreapp.com I think they made DNS changes a week ago and ever since I cannot access the site from my Mac OSX Lion (10.7.4) machine (my main development machine) but I can access the site from other machines on my network ipad windows machine MacMini (10.6.8) After some google searching I tried both of these dscacheutil -flushcache sudo killall -HUP mDNSResponder but no go, I've contacted semaphoreapp as well, but nothing so far - also of interest, one of my colleagues has the exact same problem, cannot access via Mac OSX Lion but can via windows machine, we work remotely and are not on the same ISP some additional info Lion (10.7.4) cannot access site host semaphoreapp.com semaphoreapp.com has address 5.9.53.16 ping semaphoreapp.com PING semaphoreapp.com (5.9.53.16): 56 data bytes Request timeout for icmp_seq 0 Request timeout for icmp_seq 1 Request timeout for icmp_seq 2 Request timeout for icmp_seq 3 ping: sendto: No route to host Request timeout for icmp_seq 4 ping: sendto: Host is down Request timeout for icmp_seq 5 ping: sendto: Host is down Request timeout for icmp_seq 6 ping: sendto: Host is down Request timeout for icmp_seq 7 .... traceroute semaphoreapp.com traceroute to semaphoreapp.com (5.9.53.16), 64 hops max, 52 byte packets 1 * * * 2 * * * traceroute: sendto: No route to host 3 traceroute: wrote semaphoreapp.com 52 chars, ret=-1 *traceroute: sendto: Host is down traceroute: wrote semaphoreapp.com 52 chars, ret=-1 .... and MacMini (10.6.8) can access it host semaphoreapp.com semaphoreapp.com has address 5.9.53.16 ping semaphoreapp.com PING semaphoreapp.com (5.9.53.16): 56 data bytes 64 bytes from 5.9.53.16: icmp_seq=0 ttl=44 time=191.458 ms 64 bytes from 5.9.53.16: icmp_seq=1 ttl=44 time=202.923 ms 64 bytes from 5.9.53.16: icmp_seq=2 ttl=44 time=180.746 ms 64 bytes from 5.9.53.16: icmp_seq=3 ttl=44 time=200.616 ms 64 bytes from 5.9.53.16: icmp_seq=4 ttl=44 time=178.818 ms .... traceroute semaphoreapp.com traceroute to semaphoreapp.com (5.9.53.16), 64 hops max, 52 byte packets 1 192.168.0.1 (192.168.0.1) 1.677 ms 1.446 ms 1.445 ms 2 * LOCAL ISP 11.957 ms * 3 etc... 10.704 ms 14.183 ms 9.341 ms 4 etc... 32.641 ms 12.147 ms 10.850 ms 5 etc.... 44.205 ms 54.563 ms 36.243 ms 6 vlan139.car1.seattle1.level3.net (4.53.145.165) 50.136 ms 45.873 ms 30.396 ms 7 ae-32-52.ebr2.seattle1.level3.net (4.69.147.182) 31.926 ms 40.507 ms 49.993 ms 8 ae-2-2.ebr2.denver1.level3.net (4.69.132.54) 78.129 ms 59.674 ms 49.905 ms 9 ae-3-3.ebr1.chicago2.level3.net (4.69.132.62) 99.019 ms 82.008 ms 76.074 ms 10 ae-1-100.ebr2.chicago2.level3.net (4.69.132.114) 96.185 ms 75.658 ms 75.662 ms 11 ae-6-6.ebr2.washington12.level3.net (4.69.148.145) 104.322 ms 105.563 ms 118.480 ms 12 ae-5-5.ebr2.washington1.level3.net (4.69.143.221) 93.646 ms 99.423 ms 96.067 ms 13 ae-41-41.ebr2.paris1.level3.net (4.69.137.49) 177.744 ms ae-44-44.ebr2.paris1.level3.net (4.69.137.61) 199.363 ms 198.405 ms 14 ae-47-47.ebr1.frankfurt1.level3.net (4.69.143.141) 176.876 ms ae-45-45.ebr1.frankfurt1.level3.net (4.69.143.133) 170.994 ms ae-46-46.ebr1.frankfurt1.level3.net (4.69.143.137) 177.308 ms 15 ae-61-61.csw1.frankfurt1.level3.net (4.69.140.2) 176.769 ms ae-91-91.csw4.frankfurt1.level3.net (4.69.140.14) 178.676 ms 173.644 ms 16 ae-2-70.edge7.frankfurt1.level3.net (4.69.154.75) 180.407 ms ae-3-80.edge7.frankfurt1.level3.net (4.69.154.139) 174.861 ms 176.578 ms 17 as33891-net.edge7.frankfurt1.level3.net (195.16.162.94) 175.448 ms 185.658 ms 177.081 ms 18 hos-bb1.juniper4.rz16.hetzner.de (213.239.240.202) 188.700 ms 190.332 ms 188.196 ms 19 hos-tr4.ex3k14.rz16.hetzner.de (213.239.233.98) 199.632 ms hos-tr3.ex3k14.rz16.hetzner.de (213.239.233.66) 185.938 ms hos-tr2.ex3k14.rz16.hetzner.de (213.239.230.34) 182.378 ms 20 * * * 21 * * * 22 * * * any ideas? EDIT: adding tcpdump MacMini (which can connect) while running - ping semaphoreapp.com sudo tcpdump -v -i en0 dst semaphoreapp.com Password: tcpdump: listening on en0, link-type EN10MB (Ethernet), capture size 65535 bytes 17:33:03.337165 IP (tos 0x0, ttl 64, id 20153, offset 0, flags [none], proto ICMP (1), length 84, bad cksum 0 (->3129)!) 192.168.0.6 > static.16.53.9.5.clients.your-server.de: ICMP echo request, id 61918, seq 0, length 64 17:33:04.337279 IP (tos 0x0, ttl 64, id 26049, offset 0, flags [none], proto ICMP (1), length 84, bad cksum 0 (->1a21)!) 192.168.0.6 > static.16.53.9.5.clients.your-server.de: ICMP echo request, id 61918, seq 1, length 64 17:33:05.337425 IP (tos 0x0, ttl 64, id 47854, offset 0, flags [none], proto ICMP (1), length 84, bad cksum 0 (->c4f3)!) 192.168.0.6 > static.16.53.9.5.clients.your-server.de: ICMP echo request, id 61918, seq 2, length 64 17:33:06.337548 IP (tos 0x0, ttl 64, id 24772, offset 0, flags [none], proto ICMP (1), length 84, bad cksum 0 (->1f1e)!) 192.168.0.6 > static.16.53.9.5.clients.your-server.de: ICMP echo request, id 61918, seq 3, length 64 17:33:07.337670 IP (tos 0x0, ttl 64, id 8171, offset 0, flags [none], proto ICMP (1), length 84, bad cksum 0 (->5ff7)!) 192.168.0.6 > static.16.53.9.5.clients.your-server.de: ICMP echo request, id 61918, seq 4, length 64 17:33:08.337816 IP (tos 0x0, ttl 64, id 35810, offset 0, flags [none], proto ICMP (1), length 84, bad cksum 0 (->f3ff)!) 192.168.0.6 > static.16.53.9.5.clients.your-server.de: ICMP echo request, id 61918, seq 5, length 64 17:33:09.337948 IP (tos 0x0, ttl 64, id 31120, offset 0, flags [none], proto ICMP (1), length 84, bad cksum 0 (->652)!) 192.168.0.6 > static.16.53.9.5.clients.your-server.de: ICMP echo request, id 61918, seq 6, length 64 ^C 7 packets captured 1047 packets received by filter 0 packets dropped by kernel OSX Lion (cannot connect) while running - ping semaphoreapp.com # wireless ~ $ sudo tcpdump -v -i en1 dst semaphoreapp.com Password: tcpdump: listening on en1, link-type EN10MB (Ethernet), capture size 65535 bytes ^C 0 packets captured 262 packets received by filter 0 packets dropped by kernel and # wired ~ $ sudo tcpdump -v -i en0 dst semaphoreapp.com tcpdump: listening on en0, link-type EN10MB (Ethernet), capture size 65535 bytes ^C 0 packets captured 219 packets received by filter 0 packets dropped by kernel above output after Request timeout for icmp_seq 25 or 30 times from ping. I don't know much about tcpdump, but to me it doesn't seem like the ping requests are leaving my machine?

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• NTFS Permissions - Correct combinations of special access permissions

  - by thedugas

  What would be the correct combination of NTFS special access permissions to allow an AD group (Authenticated Users) to copy files to a share, but after copying no one in the AD group should be allowed to edit, overwrite, rename, or delete the file? The AD group should also be able to copy files from the share to their machines.

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• Windows7 - “The specified network password is not correct.” when the password is in fact correct.

  - by Win7 Home User

  I have a samba server setup for some time now. It is a Hardware NAS - which unfortunately does not provide access to the Samba logs. (the exact model of the NAS is called Addonics NAS Adapter ) I also have a Windows Vista and a Windows XP machine - from both I am able to map \\192.168.0.20\Smd with no errors ( net use l: \\192.168.0.20\Smd works, after asking for my username and password). I also bought a brand new computer, with Windows 7, and when I try to execute the same exact net use command on it - using the exact same username/password pair, I get a "The specified network password is not correct." message. I also tried mapping from the Windows explorer menu, and got the same error. I synchronized the clocks of the two machines, tried again... and yet the same error persists. So what is really surprising here is that mapping works from WindowXP and Windows Vista machines, but fails from a Windows7 machine using the exact same command and username/password - Anyone has any idea of what could be causing this or how to solve the problem? Thanks

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• Radius Authorization against ActiveDirectory and the users file

  - by mohrphium

  I have a problem with my freeradius server configuration. I want to be able to authenticate users against Windows ActiveDirectory (2008 R2) and the users file, because some of my co-workers are not listed in AD. We use the freeradius server to authenticate WLAN users. (PEAP/MSCHAPv2) AD Authentication works great, but I still have problems with the /etc/freeradius/users file When I run freeradius -X -x I get the following: Mon Jul 2 09:15:58 2012 : Info: ++++[chap] returns noop Mon Jul 2 09:15:58 2012 : Info: ++++[mschap] returns noop Mon Jul 2 09:15:58 2012 : Info: [suffix] No '@' in User-Name = "testtest", looking up realm NULL Mon Jul 2 09:15:58 2012 : Info: [suffix] Found realm "NULL" Mon Jul 2 09:15:58 2012 : Info: [suffix] Adding Stripped-User-Name = "testtest" Mon Jul 2 09:15:58 2012 : Info: [suffix] Adding Realm = "NULL" Mon Jul 2 09:15:58 2012 : Info: [suffix] Authentication realm is LOCAL. Mon Jul 2 09:15:58 2012 : Info: ++++[suffix] returns ok Mon Jul 2 09:15:58 2012 : Info: [eap] EAP packet type response id 1 length 13 Mon Jul 2 09:15:58 2012 : Info: [eap] No EAP Start, assuming it's an on-going EAP conversation Mon Jul 2 09:15:58 2012 : Info: ++++[eap] returns updated Mon Jul 2 09:15:58 2012 : Info: [files] users: Matched entry testtest at line 1 Mon Jul 2 09:15:58 2012 : Info: ++++[files] returns ok Mon Jul 2 09:15:58 2012 : Info: ++++[expiration] returns noop Mon Jul 2 09:15:58 2012 : Info: ++++[logintime] returns noop Mon Jul 2 09:15:58 2012 : Info: [pap] WARNING: Auth-Type already set. Not setting to PAP Mon Jul 2 09:15:58 2012 : Info: ++++[pap] returns noop Mon Jul 2 09:15:58 2012 : Info: +++- else else returns updated Mon Jul 2 09:15:58 2012 : Info: ++- else else returns updated Mon Jul 2 09:15:58 2012 : Info: Found Auth-Type = EAP Mon Jul 2 09:15:58 2012 : Info: # Executing group from file /etc/freeradius/sites-enabled/default Mon Jul 2 09:15:58 2012 : Info: +- entering group authenticate {...} Mon Jul 2 09:15:58 2012 : Info: [eap] EAP Identity Mon Jul 2 09:15:58 2012 : Info: [eap] processing type tls Mon Jul 2 09:15:58 2012 : Info: [tls] Initiate Mon Jul 2 09:15:58 2012 : Info: [tls] Start returned 1 Mon Jul 2 09:15:58 2012 : Info: ++[eap] returns handled Sending Access-Challenge of id 199 to 192.168.61.11 port 3072 EAP-Message = 0x010200061920 Message-Authenticator = 0x00000000000000000000000000000000 State = 0x85469e2a854487589fb1196910cb8ae3 Mon Jul 2 09:15:58 2012 : Info: Finished request 125. Mon Jul 2 09:15:58 2012 : Debug: Going to the next request Mon Jul 2 09:15:58 2012 : Debug: Waking up in 2.4 seconds. After that it repeats the login attempt and at some point tries to authenticate against ActiveDirectory with ntlm, which doesn't work since the user exists only in the users file. Can someone help me out here? Thanks. PS: Hope this helps, freeradius trying to auth against AD: Mon Jul 2 09:15:58 2012 : Info: ++[chap] returns noop Mon Jul 2 09:15:58 2012 : Info: ++[mschap] returns noop Mon Jul 2 09:15:58 2012 : Info: [suffix] No '@' in User-Name = "testtest", looking up realm NULL Mon Jul 2 09:15:58 2012 : Info: [suffix] Found realm "NULL" Mon Jul 2 09:15:58 2012 : Info: [suffix] Adding Stripped-User-Name = "testtest" Mon Jul 2 09:15:58 2012 : Info: [suffix] Adding Realm = "NULL" Mon Jul 2 09:15:58 2012 : Info: [suffix] Authentication realm is LOCAL. Mon Jul 2 09:15:58 2012 : Info: ++[suffix] returns ok Mon Jul 2 09:15:58 2012 : Info: ++[control] returns ok Mon Jul 2 09:15:58 2012 : Info: [eap] EAP packet type response id 7 length 67 Mon Jul 2 09:15:58 2012 : Info: [eap] No EAP Start, assuming it's an on-going EAP conversation Mon Jul 2 09:15:58 2012 : Info: ++[eap] returns updated Mon Jul 2 09:15:58 2012 : Info: [files] users: Matched entry testtest at line 1 Mon Jul 2 09:15:58 2012 : Info: ++[files] returns ok Mon Jul 2 09:15:58 2012 : Info: ++[smbpasswd] returns notfound Mon Jul 2 09:15:58 2012 : Info: ++[expiration] returns noop Mon Jul 2 09:15:58 2012 : Info: ++[logintime] returns noop Mon Jul 2 09:15:58 2012 : Info: [pap] WARNING: Auth-Type already set. Not setting to PAP Mon Jul 2 09:15:58 2012 : Info: ++[pap] returns noop Mon Jul 2 09:15:58 2012 : Info: Found Auth-Type = EAP Mon Jul 2 09:15:58 2012 : Info: # Executing group from file /etc/freeradius/sites-enabled/inner-tunnel Mon Jul 2 09:15:58 2012 : Info: +- entering group authenticate {...} Mon Jul 2 09:15:58 2012 : Info: [eap] Request found, released from the list Mon Jul 2 09:15:58 2012 : Info: [eap] EAP/mschapv2 Mon Jul 2 09:15:58 2012 : Info: [eap] processing type mschapv2 Mon Jul 2 09:15:58 2012 : Info: [mschapv2] # Executing group from file /etc/freeradius/sites-enabled/inner-tunnel Mon Jul 2 09:15:58 2012 : Info: [mschapv2] +- entering group MS-CHAP {...} Mon Jul 2 09:15:58 2012 : Info: [mschap] Creating challenge hash with username: testtest Mon Jul 2 09:15:58 2012 : Info: [mschap] Told to do MS-CHAPv2 for testtest with NT-Password Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: --username=%{mschap:User-Name:-None} -> --username=testtest Mon Jul 2 09:15:58 2012 : Info: [mschap] No NT-Domain was found in the User-Name. Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: %{mschap:NT-Domain} -> Mon Jul 2 09:15:58 2012 : Info: [mschap] ... expanding second conditional Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: --domain=%{%{mschap:NT-Domain}:-AD.CXO.NAME} -> --domain=AD.CXO.NAME Mon Jul 2 09:15:58 2012 : Info: [mschap] mschap2: 82 Mon Jul 2 09:15:58 2012 : Info: [mschap] Creating challenge hash with username: testtest Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: --challenge=%{mschap:Challenge:-00} -> --challenge=dd441972f987d68b Mon Jul 2 09:15:58 2012 : Info: [mschap] expand: --nt-response=%{mschap:NT-Response:-00} -> --nt-response=7e6c537cd5c26093789cf7831715d378e16ea3e6c5b1f579 Mon Jul 2 09:15:58 2012 : Debug: Exec-Program output: Logon failure (0xc000006d) Mon Jul 2 09:15:58 2012 : Debug: Exec-Program-Wait: plaintext: Logon failure (0xc000006d) Mon Jul 2 09:15:58 2012 : Debug: Exec-Program: returned: 1 Mon Jul 2 09:15:58 2012 : Info: [mschap] External script failed. Mon Jul 2 09:15:58 2012 : Info: [mschap] FAILED: MS-CHAP2-Response is incorrect Mon Jul 2 09:15:58 2012 : Info: ++[mschap] returns reject Mon Jul 2 09:15:58 2012 : Info: [eap] Freeing handler Mon Jul 2 09:15:58 2012 : Info: ++[eap] returns reject Mon Jul 2 09:15:58 2012 : Info: Failed to authenticate the user. Mon Jul 2 09:15:58 2012 : Auth: Login incorrect (mschap: External script says Logon failure (0xc000006d)): [testtest] (from client techap01 port 0 via TLS tunnel) PPS: Maybe the problem is located here: In /etc/freeradius/modules/ntlm_auth I have set ntlm to: program = "/usr/bin/ntlm_auth --request-nt-key --domain=AD.CXO.NAME --username=%{mschap:User-Name} --password=%{User-Password}" I need this, so users can login without adding @ad.cxo.name to their usernames. But how can I tell freeradius to try both logins, [email protected] (should fail) testtest (against users file - should work)

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