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  • Ensure Mac's get correct machine name from DHCP?

    - by Greg Whitfield
    I have a problem in our network where our Mac's occasionally get given the wrong machine name while, I guess, getting a new DHCP lease. The DHCP servers are Windows based - the bulk of our network is Windows, but we have some Linux machines and an increasing number of Macs. The problem specifics is that occasionally a Mac will take on the name of another machine in the network. For example, I have a new Macbook Pro. In the OSX setup is gets called "gomez", and initially starts up on the network with that name without any problems. But after a few days when the machine was restarted (it had several restarts in the meantime), it ended up being called "florrie", which is actually the name of another machine in another part of the network. All network ops work fine, and indeed you don't notice most of the time - it's only when you run apps like Perforce that require the hostname that you get problems. I'm sorry I don't have more info than that, but if I know what to look for I can dig out some more facts. Or any hints on checking the network setup would be useful.

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  • ntop to analyse bandwidth usage on multiple ASA 5505

    - by dunxd
    I have set up a netflow server at our data centre, which is connected via VPN to ~40 remote offices using Cisco ASA 5505. The aim is to analyse usage data and find out exactly how the remote connections are being used. I followed through http://techowto.files.wordpress.com/2008/09/ntop-guide.pdf to set up ntop and https://supportforums.cisco.com/docs/DOC-6114 to set up the ASAs. I can see from the Plugin Netflow Statistics page that netflow packets from my ASAs are being received - the counter is increasing. However, I am not seeing any breakdown on the Global Traffic Statistic page after switching to the Netflow interface. I'm just seeing a pie chart showing 100% traffic for eth0. The interfaces and documentation are a little hard to follow so I am not sure I have got things configured correctly. When setting up my NetFlow-device.2 I can specify Virtual NetFlow Interface Network Address - the web UI says This value is in the form of a network address and mask on the network where the actual NetFlow probe is located. is this a Network address (e.g. 192.168.0.0/24) or an actual host IP address (192.167.0.1/24)? If that should be a network address, is this the network in which one of my ASAs is or the network in which my ntop server is? If a host IP address, is this the IP address used by eth0 on my ntop server, the IP address of an ASA, or something else? Do I need a separate virtual interface for each ASA I am collecting netflow data from? Any guidance would be greatly welcome.

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  • SSH tunnel RDP through gateway server outside the network?

    - by Mike
    I need to access a PC via RDP that is behind a firewall. There's no way to connect to it directly that I know of. What I'd like to do is SSH from that remote PC to my home Ubuntu server, then connect to the remote PC using my home PC with the Ubuntu server as a gateway. I've tried SSH from remote PC to Ubuntu server, tunneling remote port 3389 to 127.0.0.1:3389, then SSH from home PC to Ubuntu server, tunneling local port 13389 to remote port 3389. At that point I try to RDP into: 127.0.0.1:13389, 127.0.0.2:13389, :3389 - no dice. I suppose I could simply set up an SSH server on my home PC and SSH from remote PC into home PC and then establish the tunnel that way, but I'd rather not go through the hassle of installing and configuring an ssh server on my home PC. I know LogMeIn would work here, but I don't want to go that route for various reasons. Any ideas? Thanks!

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  • java class creation dynamically and make it accessible across the network different jvms i.e. serial

    - by inj.rav
    Hi. I have a requirement of creating java classes dynamically and make it accessible different jvms across the network. I tried to use reflection and javassist tool,but nothing worked. Let me explain the scenario we are using Coherence distributed cache. It has a power of doing aggregation/filtering in parallel across the cluster. For example if a class has [dynamic class] has amount variable and getAmount/setAmount methods. Then if we execute COHERENCE queries, it will start process in parallel across the cluster. I tried to create classes at run time by using javassist and reflection. I am able to access it from single JVM, but when I tried to access the same class from other jvm [through coherence cluster]. I am getting exception of class not found [as remote jvm is not having idea of this class].I can over come this by creating same class dynamically on remote jvm also and access the methods. But coherence in built methods/functions are not able to find the class. could some one help me on this matter

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  • How can I find a computer on my network that is doing mass mailings?

    - by Alex Ciarlill
    I was notified by my isp that one of my machines is sending out spam. This happened about 3 months ago on windows machine running cygwin that was hacked due to an SSH vuln. The hackers setup IIS and SMTP. I cleared out the machine and all the services are disabled so I think that machine is okay I am wondering if there is any other way to identify which machine it could be coming from? The ISP has NO useful information such as source port, destination port, destination IP... nothing. I am running DD-WRT on my router, Windows 7 PC and a Windows XP PC.

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  • Data is not saved in MS Access database

    - by qwerty
    Hello, I have a visual C# project and i'm trying to insert data in a MS Access Database when i press a button. Here is the code: private void button1_Click(object sender, EventArgs e) { try { OleDbDataAdapter adapter=new OleDbDataAdapter(); adapter.InsertCommand = new OleDbCommand(); adapter.InsertCommand.CommandText = "insert into Candidati values ('" + maskedTextBox1.Text.Trim() + "','" + textBox1.Text.Trim() + "', '" + textBox2.Text.Trim() + "', '" + textBox3.Text.Trim() + "','" + Convert.ToDouble(maskedTextBox2.Text) + "','" + Convert.ToDouble(maskedTextBox3.Text) + "')"; con.Open(); adapter.InsertCommand.Connection = con; adapter.InsertCommand.ExecuteNonQuery(); con.Close(); MessageBox.Show("Inregistrare adaugata cu succes!"); maskedTextBox1.Text = null; maskedTextBox2.Text = null; maskedTextBox3.Text = null; textBox1.Text = null; textBox2.Text = null; textBox3.Text = null; maskedTextBox1.Focus(); } catch (AdmitereException exc) { MessageBox.Show("A aparut o exceptie: "+exc.Message, "Eroare!", MessageBoxButtons.OK, MessageBoxIcon.Error); } } The connection string is: private static string connectionString; OleDbConnection con; public AddCandidati() { connectionString = "Provider=Microsoft.JET.OLEDB.4.0;Data Source=Admitere.mdb"; con = new OleDbConnection(connectionString); InitializeComponent(); } Where AddCandidati is the form. The data is not saved in the database, why? I have the .mdb file in the project folder.. What i'm doing wrong? I did not got any exception when i press the button.. Thanks!

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  • Android programmatically add buttons to layout from string array

    - by Luke Batley
    Does anyone know how to programatically add buttons to the layout from an array? I have an array of titles and icons that i have used for a list view and now i'm wanting to reuse the same arrays to create a layout as displayed here so the layout adds a button for each item in the array and arranges them in 3's according to device width. is this possible to do? I have tried using a custom Array Adapter to generate the Grid but getting a null pointer error at the point menuGrid = (GridView) findViewById(R.id.gridView1); MenuItemsSetup menuData[] = new MenuItemsSetup[] { new MenuItemsSetup(R.drawable.ic_menu_icon1, "menuItem1"), new MenuItemsSetup(R.drawable.ic_menu_icon2, "menuItem2"), new MenuItemsSetup(R.drawable.ic_menu_icon3, "menuItem3"), new MenuItemsSetup(R.drawable.ic_menu_icon4, "menuItem4"), new MenuItemsSetup(R.drawable.ic_menu_icon5, "menuItem5"), new MenuItemsSetup(R.drawable.ic_menu_icon6, "menuItem6"), new MenuItemsSetup(R.drawable.ic_menu_icon7, "menuItem7"), new MenuItemsSetup(R.drawable.ic_menu_icon8, "menuItem8") }; String[] menuBgColours = {"#FFFFFF","#FFFFFF", ,"#888888", "#FFFFBB", "#BBFFFF","#000000", "#666666"}; CustomArrayAdapter adapter = new CustomArrayAdapter(this, R.layout.drawer_list_item, menuData, menuBgColours); menuList.setAdapter(adapter); menuGrid.setAdapter(adapter);

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  • "is not abstact and does not override abstract method."

    - by Chris Bolton
    So I'm pretty new to android development and have been trying to piece together some code bits. Here's what I have so far: package com.teslaprime.prirt; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.AdapterView.OnItemClickListener; import java.util.ArrayList; import java.util.List; public class TaskList extends Activity { List<Task> model = new ArrayList<Task>(); ArrayAdapter<Task> adapter = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button add = (Button) findViewById(R.id.add); add.setOnClickListener(onAdd); ListView list = (ListView) findViewById(R.id.tasks); adapter = new ArrayAdapter<Task>(this,android.R.layout.simple_list_item_1,model); list.setAdapter(adapter); list.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(View v, int position, long id) { adapter.remove(position); } });} private View.OnClickListener onAdd = new View.OnClickListener() { public void onClick(View v) { Task task = new Task(); EditText name = (EditText) findViewById(R.id.taskEntry); task.name = name.getText().toString(); adapter.add(task); } }; } and here are the errors I'm getting: compile: [javac] /opt/android-sdk/tools/ant/main_rules.xml:384: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds [javac] Compiling 2 source files to /home/chris-kun/code/priRT/bin/classes [javac] /home/chris-kun/code/priRT/src/com/teslaprime/prirt/TaskList.java:30: <anonymous com.teslaprime.prirt.TaskList$1> is not abstract and does not override abstract method onItemClick(android.widget.AdapterView<?>,android.view.View,int,long) in android.widget.AdapterView.OnItemClickListener [javac] list.setOnItemClickListener(new OnItemClickListener() { [javac] ^ [javac] /home/chris-kun/code/priRT/src/com/teslaprime/prirt/TaskList.java:32: remove(com.teslaprime.prirt.Task) in android.widget.ArrayAdapter<com.teslaprime.prirt.Task> cannot be applied to (int) [javac] adapter.remove(position); [javac] ^ [javac] 2 errors BUILD FAILED /opt/android-sdk/tools/ant/main_rules.xml:384: Compile failed; see the compiler error output for details. Total time: 2 seconds any ideas?

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  • Correct use of setEmtpyView in AdapterView

    - by Sebi
    I'm really having trouble using the setEmptyView method. I tried it to implement it in GridView and ListView, but both of them didnt work. Here a sample codeblock: networkGames = (GridView) baseLayer.findViewById(R.id.all_game_grid_network); networkGames.setBackgroundResource(R.drawable.game_border); networkGames.setSelector(R.drawable.game_active_border); networkGames.setOnItemClickListener(new NetworkGameListener()); networkGames.setEmptyView(View.inflate(baseLayer, R.drawable.no_network_games, null)); networkGames.setAdapter(new NetworkAdapter()); The network adapter contains no items: private class NetworkAdapter extends BaseAdapter { /* (non-Javadoc) * @see android.widget.Adapter#getCount() */ @Override public int getCount() { return 0; } /* (non-Javadoc) * @see android.widget.Adapter#getItem(int) */ @Override public Object getItem(int position) { return null; } /* (non-Javadoc) * @see android.widget.Adapter#getItemId(int) */ @Override public long getItemId(int position) { return 0; } /* (non-Javadoc) * @see android.widget.Adapter#getView(int, android.view.View, android.view.ViewGroup) */ @Override public View getView(int position, View convertView, ViewGroup parent) { return null; } } I also tried to call networkGames.setAdapter(null), but this doesnt work either. My emtpyView looks like this: <LinearLayout android:id="@+id/LinearLayout01" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"> <TextView android:text="There are currently no network games available. Start a new one." android:id="@+id/TextView01" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center"> </TextView> </LinearLayout> I really don't know what I'm doing wrong. I also read various tutorials, but none of them metnioned any problems.

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  • Crossover cable in addition to normal network connection on servers?

    - by Zero0ne
    I have 2 servers, both with Windows 2003 R2 Each have 2 NIC ports that are 10/100/1000 They are both connected to our LAN + joined to the domain (1 NIC port free on each server) The problem is that our main router is only 10/100 on the ports that these servers are connected to. Since one server is going to host SQL 2005 and the other will be running Altiris NS7, I was hoping that I could use a crossover cable to connect the two directly, thus taking advantage of their 1gbps NIC cards. Is this possible? If so what steps do I need to take to accomplish this? What needs to be done to make sure that when the app server is communicating with the SQL server that it is using the direct link vs traversing the LAN? Thanks a lot!

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  • How to use CLEAR USB internet connection in Ubuntu (host) and WindowsXP (guest) using VirtualBox

    - by bithacker
    I'm trying to use CLEAR Motorola WiMax USB in Ubuntu as there is no support for linux as yet. I've installed windowsxp as guest in ubuntu and the version I'm using is 3.2.2. USB is connecting fine in WindowsXP but I can't use internet in Ubuntu. Can you please tell me how to do it. Here is the configuration that could help you guys. Thanks in advance. I'm using Two Network Adapters. Network Adapter 1: PCnet-FAST III (NAT) Adapter 2: PCnet-FAST III (Host-only adapter, 'vboxnet0') ipconfig [on Guest windowsXP] Windows IP Configuration Ethernet adapter Local Area Connection: PCnet-FAST III (NAT) Connection-specific DNS Suffix . : IP Address. . . . . . . . . . . . : 10.0.2.15 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 10.0.2.2 Ethernet adapter Local Area Connection 3: PCnet-FAST III (Host-only adapter, 'vboxnet0') Connection-specific DNS Suffix . : IP Address. . . . . . . . . . . . : 192.168.56.101 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : CLEAR Motorola USB IP Address. . . . . . . . . . . . : 10.168.242.33 Subnet Mask . . . . . . . . . . . : 255.255.192.0 Default Gateway . . . . . . . . . : 10.168.192.2 IFCONFIG [on Host Ubuntu] (Ethernet) eth0 Link encap:Ethernet HWaddr 00:14:22:b9:9d:76 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:16 eth1 (Wireless) Link encap:Ethernet HWaddr 00:13:ce:f0:9b:0d inet6 addr: fe80::213:ceff:fef0:9b0d/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:1 errors:0 dropped:5 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:84 (84.0 B) Interrupt:17 Base address:0xe000 Memory:dfcff000-dfcfffff lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:2292 errors:0 dropped:0 overruns:0 frame:0 TX packets:2292 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:171952 (171.9 KB) TX bytes:171952 (171.9 KB) vboxnet0 Link encap:Ethernet HWaddr 0a:00:27:00:00:00 inet addr:192.168.56.1 Bcast:192.168.56.255 Mask:255.255.255.0 inet6 addr: fe80::800:27ff:fe00:0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:137 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:21174 (21.1 KB)

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  • Is there a network "tee"-alike with one leg returning to /dev/null ?

    - by Steff Davies
    I've just built a new PostgreSQL server for my employers, which is happily replicating using WALs. I'm now left with the problem of verifying its performance. One nice way which came up in conversation is to break replication with the slave caught up and then direct all production traffic to both servers, discarding the responses from the new server and returning those from the current one to the clients. Once we're sure performance is OK, we re-sync the slave and can fail over with confidence. Bliss. This would require a TCP proxy capable of opening two outgoing connections for each incoming one, and discarding the data returned from one of them, which is a tricky thing to google for, it seems. Do the assembled brains know of such a thing, before I dive into libevent and write one?

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  • C++ classes with members referencing each other

    - by Saad Imran.
    I'm trying to write 2 classes with members that reference each other. I'm not sure if I'm doing something wrong or it's just not possible. Can anyone help me out here... Source.cpp #include "Headers.h" using namespace std; void main() { Network* network = new Network(); system("pause"); return; } Headers.h #ifndef Headers_h #define Headers_h #include <iostream> #include <vector> #include "Network.h" #include "Router.h" #endif Network.h #include "Headers.h" class Network { protected: vector<Router> Routers; }; Router.h #include "Headers.h" class Router { protected: Network* network; public: }; The errors I'm getting are: error C2143: syntax error : missing ';' before '<' error C2238: unexpected token(s) preceding ';' error C4430: missing type specifier - int assumed. I'm pretty sure I'm not missing any semicolons or stuff like that. The program works find if I take out one of the members. I tried finding similar questions and the solution was to use pointers, but that's what I'm doing and it does't seem to be working!

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  • How to tell credentials used for a Network Mapping?

    - by shanecourtrille
    I have a networking mapping that doesn't appear to work. When I connect to the mapping I get access denied when I try to create a folder. When I created the mapping I told it to login as another account. I have verified that account has the proper rights on the server side of things. How can I verify that my local machine is connecting with the right credentials?

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  • How do I assign Windows Firewall profiles to network interfaces from the command line?

    - by David
    I would like to assign Windows Firewall's public profile to the public Ethernet interface and the private profile to the private Ethernet interface. I can do this with the GUI via Open Windows Firewall with Advanced Security Click on Windows Firewall Properties Click the Private Profile Tab Click Customize Select the Interface I want (private) Click OK Repeat step 3-6 for the public profile How do I do this via command line? I'm using Windows Server 2008 R2

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  • How to get this printer working in Windows 7 over a network?

    - by George Edison
    Here is the setup: Router Windows XP 32-bit Windows 7 64-bit The XP machine has a Lexmark printer physically attached. I have installed the x64 drivers for the printer installed in Windows 7. When I try to print to the printer on the Windows 7 machine, it doesn't work - I get an error: Windows cannot connect to the printer. Error 0x0000000d I have made sure UDP/TCP ports 135-139 are unblocked on the Windows 7 machine.

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  • Playing iPad to iPad Wifi games over PPTP VPN

    - by Pez Cuckow
    I'm trying to use a VPN to play iPad to iPad Wifi (Local) games over the internet. Normally you open the game on both iPad's, connect to the same Wifi point and they can "see" and speak to each other. I figure using a VPN I can put them both on the same network (either both on the VPN or one on the "real" network and one on the VPN). On my router I've set up PPTP VPN with the ip range 192.168.1.2-50, where the PC's on the real local network are assigned 192.168.1.100+ When I connect one of the iPads to the VPN, using an external WiFi network (BT Openzone) I can ping it as expected (from any machine on the local network). However the iPad's cannot "see" each other and none of the Wifi-Wifi games work. I've also tried connecting both iPad's to the same VPN, with the result the same. All machines on the local network (and those on the VPN) can ping the iPad's but none of the Wifi to Wifi games work. I've set both iPads to send all trafic over the VPN and if I check their external IP's they match that of the real network. Does anyone know how to fix this? And/or what is causing it? Or what further debug information I can provide? Note: I don't feel this is iPad specific so would prefer if this isn't moved to a Apple SuperUser equivalent

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  • How can I allow the Xbox 360 to browse movies on a network drive?

    - by Roger
    I've always been able to stream movies stored on my Windows 7 computer's local hard drive to the Xbox 360 with no problems. A few weeks ago, though, I got a Seagate Dockstar NAS device and moved my movies to it. Ever since then, I can't seem them in the Xbox. I've tried several different things. When I try to add the mapped drive to the Media Player library, it says that it can't share the files. (I don't have any security on the NAS drive). I've tried creating a symlink to a local drive, but that doesn't help. Neither does adding the UNC path directly. The Dockstar seems to have its own Xbox share capability, but it doesn't respect my folder structure - it brings over every video file on the drive in a single list, including several hundred home videos that aren't playable on the Xbox. Is there any way to use Media Player (or the Zune software) to share files stored on a NAS drive? Barring this, is there a lightweight, free server that will allow me to share these files while maintaining my folder structure?

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  • "System cannot find the file specified" trying to reinstall network driver.

    - by Justin Love
    After uninstalling Symantec Enpoint Protection (manually) one computer (Windows XP) has an inoperative NIC; it shows up in device manager as conflicted. I tried doing a windows repair from CD, which did not improve the situation. When I went to reinstall the drivers, driver installation failed with: Cannot install this hardware The system cannot find the file specified I've deleted the NIC in device manager without improvement.

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