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  • Server IP must be a LAN IP (Port Forwarding Netgear Router)? [closed]

    - by rphello101
    I'm trying to set up a server (Apache) on my computer (fairly new to it). As I understand it, for it to be accessible to other computers, I need to forward port 80. When I try to forward the port though, I get the error: Server IP must be a LAN IP. I noticed in ipconfig that my default gateway is different than my wireless router. My computer is not hardwired, not on WiFi. Furthermore, I do not, at this point, have a static IP. I read that it should still work with a dynamic IP until it changes. Any ideas on what I can do? I'm using Windows 7 in case it matters.

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  • Detecting walls or floors in pygame

    - by Serial
    I am trying to make bullets bounce of walls, but I can't figure out how to correctly do the collision detection. What I am currently doing is iterating through all the solid blocks and if the bullet hits the bottom, top or sides, its vector is adjusted accordingly. However, sometimes when I shoot, the bullet doesn't bounce, I think it's when I shoot at a border between two blocks. Here is the update method for my Bullet class: def update(self, dt): if self.can_bounce: #if the bullet hasnt bounced find its vector using the mousclick pos and player pos speed = -10. range = 200 distance = [self.mouse_x - self.player[0], self.mouse_y - self.player[1]] norm = math.sqrt(distance[0] ** 2 + distance[1] ** 2) direction = [distance[0] / norm, distance[1 ] / norm] bullet_vector = [direction[0] * speed, direction[1] * speed] self.dx = bullet_vector[0] self.dy = bullet_vector[1] #check each block for collision for block in self.game.solid_blocks: last = self.rect.copy() if self.rect.colliderect(block): topcheck = self.rect.top < block.rect.bottom and self.rect.top > block.rect.top bottomcheck = self.rect.bottom > block.rect.top and self.rect.bottom < block.rect.bottom rightcheck = self.rect.right > block.rect.left and self.rect.right < block.rect.right leftcheck = self.rect.left < block.rect.right and self.rect.left > block.rect.left each test tests if it hit the top bottom left or right side of the block its colliding with if self.can_bounce: if topcheck: self.rect = last self.dy *= -1 self.can_bounce = False print "top" if bottomcheck: self.rect = last self.dy *= -1 #Bottom check self.can_bounce = False print "bottom" if rightcheck: self.rect = last self.dx *= -1 #right check self.can_bounce = False print "right" if leftcheck: self.rect = last self.dx *= -1 #left check self.can_bounce = False print "left" else: # if it has already bounced and colliding again kill it self.kill() for enemy in self.game.enemies_list: if self.rect.colliderect(enemy): self.kill() #update position self.rect.x -= self.dx self.rect.y -= self.dy This definitely isn't the best way to do it but I can't think of another way. If anyone has done this or can help that would be awesome!

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  • Python, Raspberry, and Arduino Communication

    - by user2924156
    I have been working with my Raspberry, Arduino and applying some Python to make them communicate. I also installed pyserial. If I use IDLE and try the following I get my expected results. >>> import serial >>> ser = serial.Serial('/dev/ttyUSB0',115200) >>> ser.write('x:1\n') 8 >>> ser.readline() 'X:1\r\n' If I write a python scrip and run it I don't get anything back. Here is my python script. import serial ser = serial.Serial('/dev/ttyUSB0', 115200) ser.write('!x:1\n') ser.readline() I am new to Python so looking for some help to understand they this works in IDLE but not as a python script run from terminal. Thanks.

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  • Windows file sharing with a private LAN when a public VPN is connected?

    - by netvope
    OS: Windows Vista My LAN interface is configured as a "private network". I want to have all the sharing and discovery features (Network Discovery, File Sharing, Public Folder Sharing, Printer Sharing, Password Protected Sharing, and Media Sharing), so I enabled them all. My VPN interfaces are configured as "public networks", and I do NOT want to have any of the above features. Now the problem is that if I disabled these sharing features while a VPN is connected, it affects both interfaces. I guess the Network and Sharing Center is probably an oversimplified tool that may not support multiple interfaces. Where can I tell Windows to enable sharing features for the private networks and not the public networks? For file sharing, I think I can disable "File and Printer Sharing for MS Networks" in each of the VPNs' properties. However, I will need to disable it every time I add a new VPN. Moreover, I can't find how to disable Media Sharing by this way. If this can be more easily done in Windows XP or 7, please let me know.

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  • Assistance on setup to Connect an offsite server to the LAN via RRAS VPN - Server 2008 R2

    - by Paul D'Ambra
    I have an office LAN protected using a Zyxel Zywall USG 300. I've set up an L2TP/ipsec VPN on that which accepts connections using a shared secret and I've tested this from multiple clients. I have a server offsite and want to set up RRAS to use a persistent connection to the VPN so that it can carry out network jobs even with no one logged in (I'm using it for Micorosft DPM secondary backup). If I create a vpn as if I were setting up a users laptop it can dial in no problem but if I set up a demand dial interface in RRAS it errors. I enable RRAS ticking only demand dial interface (branch office routing) Select network interfaces, right click and choose new demand dial interface Name the VPN ToCompany Select connect using VPN And then L2TP as the vpn type enter the IP address (double-checked for typos!) select Route IP packets on this interface specify static route to remote network as 10.0.0.0/24 with metric of 1 add dial out credentials (again double checked for typos and confirmed with other vpn connections click finish now I right-click on the new interface and choose properties and then the security tab I change Data encryption to optional select only PAP for Authentication (both as per manufacturer of Zywall) click advanced settings against type of vpn and set shared secret then I select the new interface, right-click and choose connect this dials and then errors with either 720 or 811 as the error codes. However, if I create a VPN by going to Network & Sharing center and setting up as if I was creating a VPN from my laptop to the office (say) it dials successfully so I know the VPN settings are correct and the machine can connect to the VPN. Suggests very strongly the problem is how I'm setting up RRAS. Can anyone help?

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  • How do I setup routing for 2 companies with different Internet connections on the same LAN?

    - by Clint Miller
    Here's the setup: 2 companies (A & B) share office space and a LAN. A 2nd ISP is brought in and company A wants it's own Internet connection (ISP A) and company B wants it's own Internet connection (ISP B). VLANs are deployed internally to separate the 2 company's networks (company A: VLAN 1, company B: VLAN 2, shared VOIP: VLAN 3). With separate VLANs it's simple enough to use separate DHCP servers (or separate scopes on the same server) to assign the default gateway to each company's gateway for their Internet connection. Static routes can be created on each gateway to point traffic destined for the other company's VLAN or the voice VLAN so that all nodes are reachable as expected. However, I think this is a form of asymmetrical routing, right? (The path from node A1 to node B1 is not the same as the path back from node B1 to node A1). Can I setup policy-based routing to correct this? In that case, can I assign the same default gateway to every device on all VLANs and create a routing policy on a L3 switch to look at the source address and forward traffic to the appropriate next hop? In that case, I want the routing logic to go like this: If the destination address is known, forward the traffic (traffic destined for a different VLAN). If the destination address is unknown, forward the traffic to ISP A's gateway if the source address is on VLAN A; or forward the traffic to ISP B's gateway if the source address is VLAN B. Am I thinking about this problem in the correct way? Is there another way to solve this problem that I am overlooking?

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  • How important is dual-gigabit lan for a super user's home NAS?

    - by Andrew
    Long story short: I'm building my own home server based on Ubuntu with 4 drives in RAID 10. Its primary purpose will be NAS and backup. Would I be making a terrible mistake by building a NAS Server with a single Gigabit NIC? Long story long: I know the absolute max I can get out of a single Gigabit port is 125MB/s, and I want this NAS to be able to handle up to 6 computers accessing files simultaneously, with up to two of them streaming video. With Ubuntu NIC-bonding and the performance of RAID 10, I can theoretically double my throughput and achieve 250MB/s (ok, not really, but it would be faster). The drives have an average read throughput of 83.87MB/s according to Tom's Hardware. The unit itself will be based on the Chenbro ES34069-BK-180 case. With my current hardware choices, it'll have this motherboard with a Core i3 CPU and 8GB of RAM. Overkill, I know, but this server will be doing other things as well (like transcoding video). Unfortunately, the only Mini-ITX boards I can find with dual-gigabit and 6 SATA ports are Intel Atom-based, and I need more processing power than an Atom has to offer. I would love to find a board with 6 SATA ports and two Gigabit LAN ports that supports a Core i3 CPU. So far, my search has come up empty. Thus, my dilemma. Should I hold out for such a board, go with an Atom-based solution, or stick with my current single-gigabit configuration? I know there are consumer NAS units with just one gigabit interface (probably most of them), but I think I will demand a lot more from my server than the average home user. Any advice is appreciated. Thanks.

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  • what is the reason behind window service stopped ,whether its due to LAN problems or any other issues

    - by Steve
    I have a windowservice which named Trunk which stopped one day i just want to know the reason behind it? this is an entry in the logs, Nov 15 17:54:04.318 :Trunk-1516:Trunk:handle_control_event:Received CTRL_LOGOFF_EVENT, ignore it Nov 25 15:54:52.157 :Trunk-1516:Trunk:ERROR - Process Restart Count (5) Exceeded for:C:\Program Files\secon\11.1.4\bin\vmd Nov 25 15:54:52.157 :Trunk-1516:Trunk:Stopping Trunk ... Nov 25 15:54:52.314 :Trunk-1516:Trunk:Shutting down, signaled C:\Program F Nov 20 15:54:20.345 :SCBridge.RegisterBridge:Exception in method: ScUtility.ScCommandException (0xa08990002): Exception from HRESULT: 0xa08990002 Supplemental Information: None available. at ScServer.ScServiceProcessorRegistryManager.Attach(String serviceProcessor, ScClientInformation clientInfo, FORCE_ATTACH_SPEC forceAttachToMaster) at ScServer.ScServiceProcessorRegistry.Attach(String serviceProcessor, Object clientInfo) at ScServer.ScServiceProcessorRegistry.Attach(String serviceProcessor) at ServerControlInterface.SCBridge.RegisterBridge(String SPName) for system APOLLOSP0 attempting to attach and register with the Bridge i had seen service is registered with specific account, so i thought that user logged off from the machine that may be the reason behind it or any LAN disconnection problem . But Having taken another look at the above entry we seem to have a constant failure being generated in vmd which causes Trunk to detect vmd requires a restart. Most of the time it works OK and the restart count is anything up to 4. In this case the Trunk log confirms that the Restart Count is 5 and so is considered to be exceeded. Presumably, this triggers the termination of the other services and Trunk is actually doing its job.So, coould this just be a timing issue and we need to increase the tolerance level (i.e restart count) or do we need to address the 0xa08990002 error in vmd?

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  • Simple, centralized user management on a small LAN - NIS or LDAP?

    - by einpoklum
    I'm setting up a small LAN for my team. It will, for all intents and purposes, not be connected to any external networks. I would it to have centralized control of user accounts (at least, I think I'd like that; I'm also considering using puppet, so theoretically I could just push /etc/passwd changes, or something). The number of machines is fixed, but not very small. Mostly they're 'attached' to a single user, but sometimes people work remotely on someone else's box; and there are a couple of servers. I've read this question, but my scenario is much simpler (even simpler than in this question) and I'd like to do something (relatively) quick, with not much hassle, but not a dirty totally-insecure hack. Is NIS relevant for my scenario? If not, what's the most hassle-free way to set up LDAP (or LDAP+Kerberos) to achieve the same? Notes: I have no experience with setting up either NIS or LDAP. We use Debian-flavored Linux distributions, mainly Kubuntu 12.04 (not my choice, but that's the way it is).

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  • How do I setup routing for two companies with different Internet connections on the same LAN?

    - by Clint Miller
    Here's the setup: Two companies (A & B) share office space and a LAN. A 2nd ISP is brought in and company A wants its own Internet connection (ISP A) and company B wants its own Internet connection (ISP B). VLANs are deployed internally to separate the two companies' networks (company A: VLAN 1, company B: VLAN 2, shared VOIP: VLAN 3). With separate VLANs it's simple enough to use separate DHCP servers (or separate scopes on the same server) to assign the default gateway to each company's gateway for their Internet connection. Static routes can be created on each gateway to point traffic destined for the other company's VLAN or the voice VLAN so that all nodes are reachable as expected. However, I think this is a form of asymmetrical routing, right? (The path from node A1 to node B1 is not the same as the path back from node B1 to node A1). Can I set up policy-based routing to correct this? In that case, can I assign the same default gateway to every device on all VLANs and create a routing policy on a L3 switch to look at the source address and forward traffic to the appropriate next hop? In that case, I want the routing logic to go like this: If the destination address is known, forward the traffic (traffic destined for a different VLAN). If the destination address is unknown, forward the traffic to ISP A's gateway if the source address is on VLAN A; or forward the traffic to ISP B's gateway if the source address is VLAN B. Am I thinking about this problem in the correct way? Is there another way to solve this problem that I am overlooking?

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  • Virtual Lan on the Cloud -- Help Confirm my understanding?

    - by marfarma
    [Note: Tried to post this over at ServerFault, but I don't have enough 'points' for more than one link. Powers that be, move this question over there.] Please give this a quick read and let me know if I'm missing something before I start trying to make this work. I'm not a systems admin professional, and I'd hate to end up banging my head into the wall if I can avoid it. Goals: Create a 'road-warrior' capable star shaped virtual LAN for consultants who spend the majority of their time on client sites, and who's firm has no physical network or servers. Enable CIFS access to a cloud-server based installation of Alfresco Allow Eventual implementation of some form of single-sign-on ( OpenLDAP server ) access to Alfresco and other server applications implemented in the future Given: All Servers will live in the public internet cloud (Rackspace Cloud Servers) OpenVPN Server will be a Linux disto, probably Ubuntu 9.x, installed on same server as Alfresco (at least to start) Staff will access server applications and resources from client sites, hotels, trains, planes, coffee shops or their homes over various ISP, using their company laptops or personal home desktops. Based on my Research thus far, to accomplish this, I'll need: OpenVPN with Bridging Enabled to create a star shaped "virtual" LAN http://openvpn.net/index.php/open-source/documentation/miscellaneous/76-ethernet-bridging.html A Road Warrior Network Configuration, as described in this Shorewall article (lower down the page) http://www.shorewall.net/OPENVPN.html Configure bridge addressesing (probably DHCP) http://openvpn.net/index.php/open-source/faq.html#bridge-addressing Configure CIFS / Samba to accept VPN IP address http://serverfault.com/questions/137933/howto-access-samba-share-over-vpn-tunnel Set up Client software, with keys configured for access (potentially through a OpenVPN-Sa client portal) http://www.openvpn.net/index.php/access-server/download-openvpn-as/221-installation-overview.html

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  • How to find keycodes for Fn + keys?

    - by budwiser
    I'm trying to find out the keycode for Fn+? keypress (left arrow). Xev outputs FocusOut event, serial 36, synthetic NO, window 0x3c00001,    mode NotifyGrab, detail NotifyAncestor FocusIn event, serial 36, synthetic NO, window 0x3c00001,    mode NotifyUngrab, detail NotifyAncestor KeymapNotify event, serial 36, synthetic NO, window 0x0,    keys:  4294967213 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0              0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   If it is telling me the keycode here, I'm not able to interpret it so help would be appreciated. I'm also curious for finding out if it's possible to bind something to Fn+Del but when trying out this combination, Xev outputs KeyPress event, serial 36, synthetic NO, window 0x3c00001, root 0xad, subw 0x0, time 1984903, (-666,480), root:(53,533), state 0x0, keycode 119 (keysym 0xffff, Delete), same_screen YES, XLookupString gives 1 bytes: (7f) " " XmbLookupString gives 1 bytes: (7f) " " XFilterEvent returns: False KeyRelease event, serial 36, synthetic NO, window 0x3c00001, root 0xad, subw 0x0, time 1985008, (-666,480), root:(53,533), state 0x0, keycode 119 (keysym 0xffff, Delete), same_screen YES, XLookupString gives 1 bytes: (7f) " " XFilterEvent returns: False which is exactly the same as pressing del without Fn. So, summary for short How can I find keycode for Fn+? (left arrow)? Is it even possible to bind something to Fn+Del or am I facing windmills here?

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  • Keyboard / keymap problems with Xubuntu 12.04 + NX nomachine

    - by bajafresh4life
    I'm running NX client on my Macbook Pro to connect to a Xubuntu 12.04 desktop at work. I have configured NX client to start up a console upon connection. I am able to connect to my remote linux machine and I get a simple xterm console. However, when I run xfce4-session, half my keys no longer work. For example, when I launch a terminal, I typing a, s, or d works, but if type w, e, r, or t, the cursor just blinks. If I ctrl-C out of xfce4-session, all the keys work fine in my xterm console. If I run xev, this is the output for when I hit a key that works: KeyRelease event, serial 34, synthetic NO, window 0x2e00001, root 0x373, subw 0x0, time 170160781, (-45,-21), root:(824,429), state 0x4, keycode 16 (keysym 0x63, c), same_screen YES, XLookupString gives 1 bytes: (03) "" XFilterEvent returns: False KeyRelease event, serial 34, synthetic NO, window 0x2e00001, root 0x373, subw 0x0, time 170160781, (-45,-21), root:(824,429), state 0x4, keycode 67 (keysym 0xffe3, Control_L), same_screen YES, XKeysymToKeycode returns keycode: 63 XLookupString gives 0 bytes: XFilterEvent returns: False but when I hit a key that doesn't work: FocusOut event, serial 34, synthetic NO, window 0x2e00001, mode NotifyGrab, detail NotifyAncestor FocusIn event, serial 34, synthetic NO, window 0x2e00001, mode NotifyUngrab, detail NotifyAncestor KeymapNotify event, serial 34, synthetic NO, window 0x0, keys: 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Any ideas on what I can do to troubleshoot this issue? Googling around offered a few suggestions (like playing with xmodmap) but nothing seemed to work. Also, one thing worth mentioning is that I do not have any keyboard issues when remoting into a different Ubuntu 10 box via NX.

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  • How to find keycodes for Fn + keys in Ubuntu 11.10

    - by budwiser
    I'm trying to find out the keycode for Fn+? keypress (left arrow). Xev outputs FocusOut event, serial 36, synthetic NO, window 0x3c00001,    mode NotifyGrab, detail NotifyAncestor FocusIn event, serial 36, synthetic NO, window 0x3c00001,    mode NotifyUngrab, detail NotifyAncestor KeymapNotify event, serial 36, synthetic NO, window 0x0,    keys:  4294967213 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0              0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   If it is telling me the keycode here, I'm not able to interpret it so help would be appreciated. I'm also curious for finding out if it's possible to bind something to Fn+Del but when trying out this combination, Xev outputs KeyPress event, serial 36, synthetic NO, window 0x3c00001, root 0xad, subw 0x0, time 1984903, (-666,480), root:(53,533), state 0x0, keycode 119 (keysym 0xffff, Delete), same_screen YES, XLookupString gives 1 bytes: (7f) " " XmbLookupString gives 1 bytes: (7f) " " XFilterEvent returns: False KeyRelease event, serial 36, synthetic NO, window 0x3c00001, root 0xad, subw 0x0, time 1985008, (-666,480), root:(53,533), state 0x0, keycode 119 (keysym 0xffff, Delete), same_screen YES, XLookupString gives 1 bytes: (7f) " " XFilterEvent returns: False which is exactly the same as pressing del without Fn. So, summary for short How can I find keycode for Fn+? (left arrow)? Is it even possible to bind something to Fn+Del or am I facing windmills here?

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  • Fixing Two keys events on single key press by xmodmap

    - by William.Ebe
    I'm using Dell Latitude D620. Whenever, I'm pressing the space key, the down arrow key also triggered perform it's action. Here is the log: KeyPress event, serial 30, synthetic NO, window 0x3200001, root 0x10c, subw 0x0, time 2248017, (70,-9), root:(76,39), state 0x0, keycode 116 (keysym 0xff54, Down), same_screen YES, XLookupString gives 0 bytes: XmbLookupString gives 0 bytes: XFilterEvent returns: False KeyPress event, serial 31, synthetic NO, window 0x3200001, root 0x10c, subw 0x0, time 2248018, (70,-9), root:(76,39), state 0x0, keycode 65 (keysym 0x20, space), same_screen YES, XLookupString gives 1 bytes: (20) " " XmbLookupString gives 1 bytes: (20) " " XFilterEvent returns: False KeyRelease event, serial 33, synthetic NO, window 0x3200001, root 0x10c, subw 0x0, time 2248083, (70,-9), root:(76,39), state 0x0, keycode 65 (keysym 0x20, space), same_screen YES, XLookupString gives 1 bytes: (20) " " XFilterEvent returns: False KeyRelease event, serial 33, synthetic NO, window 0x3200001, root 0x10c, subw 0x0, time 2248085, (70,-9), root:(76,39), state 0x0, keycode 116 (keysym 0xff54, Down), same_screen YES, XLookupString gives 0 bytes: XFilterEvent returns: False ClientMessage event, serial 33, synthetic YES, window 0x3200001, message_type 0x157 (WM_PROTOCOLS), format 32, message 0x155 (WM_DELETE_WINDOW) The above log is for a single press+release of spacebar key. I would like to know how to fix that. Thanks. PS: I'm using the same laptop to post question. If somebody helps to align it into code format, it would be helpful as I can't do that with this keyboard properly.

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  • Re-downloading Microsoft SQL Server 2008 Standard because of license issues?

    - by James Watt
    I have many clients who have purchased Microsoft SQL Server 2008 Standard. Unlike other Microsoft software, there is not a serial number provided for each customer to install the software. Futhermore, Microsoft's TechNet website lists this information about SQL Server instead of providing a key: "This product is pre-pidded." This means that the configuration file for SQL server contains your serial number instead of manually entering it. My question is then: does this serial change for each customer? The reason I ask: I'd rather not download a 3.2GB disc image over and over again for each of my customers individually. But, I don't want to risk using the same image over and over again resulting in Microsoft banning the serial for over use (as opposed to each customer using their copy with THEIR serial number.) Thanks in advance.

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  • VPN Device behind router/firewall

    - by David Steven
    ROUTER A: Peplink 310 serving as the gateway/router/firewall at one location. ROUTER B: Linksys RV082 serving as the gateway/router/firewall at another location. I want to VPN these two locations together. The Peplink has a PPTP server and has proprietary site-to-site vpn if you had another peplink device. The Linksys has an IPsec vpn server. VPN A: I also have another spare linksys rv082. I'm trying to setup the other rv082 (VPN A) behind the peplink (ROUTER A) and get VPN A to talk to ROUTER B. I setup VPN A with a lan ip address and plugged one of it's LAN ports into the LAN. I was able to get to it's web interface fine. On ROUTER A I one-to-one nat mapped one of our public ip's to the LAN IP for VPN A. I opened TCP 50-51 and UDP 500 to VPN A. I configured the VPN settings on VPN A to connect to ROUTER B. I did the opposite for ROUTER B. But the vpn doesn't connect. Then I tried pluging VPN A's wan port into the lan, and gave it another LAN IP. I thought perpahs VPN A didn't want to send VPN traffic out over the LAN and wanted do send it over it's WAN. The vpn still doesn't connect. It what I'm trying to do even possible?

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  • Connect two networks

    - by Meek Barrios
    Connecting two different offices with a wireless link and linux boxes. Hardware: 2 CISCO RV42, 2 Dual Homed Linux Boxes running debian, 2 2Wire and 2 AirMax 5 Configuration is: Office A LAN A (10.1.1.0/24) -> RV42 A (WAN1 - 10.1.1.254) -> 2Wire A (Internet) LINUX A ( ETH0 (LAN) 10.1.1.253, ETH1 (LINK) (10.1.3.3) Wireless Link --- AirMax A <-> AirMax B connected as Wireless Bridge Office B LAN B (10.1.2.0/24) -> RV42 B (WAN1 - 10.1.2.254) -> 2Wire B (Internet) LINUX B ( ETH0 (LAN) 10.1.2.253 -> ETH1 (LINK) (10.1.3.4) Network configuration is: LAN A - Default Gateway 10.1.1.254 RV42 A - Static Route 10.1.3.0/24 on 10.1.1.253 Static Route 10.1.2.0/24 on 10.1.1.253 Default on 192.168.1.1 (WAN1 Internet Access) Linux A - ETH0 10.1.1.253 netmask 255.255.255.0 gw 10.1.1.254 ETH1 10.1.3.3 netmask 255.255.255.0 gw 10.1.3.1 AIRMAX A - 10.1.3.1 netmask 255.255.255.0 gw 10.1.3.1 LAN B - Default Gateway 10.1.2.254 RV42 B - Static Route 10.1.3.0/24 on 10.1.2.253 Static Route 10.1.1.0/24 on 10.1.2.253 Default on 192.168.1.1 (WAN1 Internet Access) Linux B - ETH0 10.1.2.253 netmask 255.255.255.0 gw 10.1.2.254 ETH1 10.1.3.4 netmask 255.255.255.0 gw 10.1.3.2 AIRMAX B - 10.1.3.2 netmask 255.255.255.0 gw 10.1.3.2 Both linux have ip_forward set to 1 and the following on the iptables: iptables -F iptables -X iptables -P FORWARD ACCEPT iptables -P INPUT ACCEPT iptables -P OUTPUT ACCEPT I can ping from Linux B any ip on 10.1.1.0/24 segment and on linux A any ip on 10.1.2.0/24 segment however I cannot connect to HTTP or FTP on those machines. From LAN A I cannot see any other network. I'm looking for some advice for this configuration or a better solution. Regards

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  • How do I read text from a serial port?

    - by user2164
    I am trying to read data off of a Windows serial port through Java. I have the javax.comm libraries and am able to get some data but not correct data. When I read the port into a byte array and convert it to text I get a series of characters but no real text string. I have tried to specify the byte array as being both "UTF-8" and "US-ASCII". Does anyone know how to get real text out of this? Here is my code: while (inputStream.available() > 0) { int numBytes = inputStream.read(readBuffer); System.out.println("Reading from " + portId.getName() + ": "); System.out.println("Read " + numBytes + " bytes"); } System.out.println(new String(readBuffer)); System.out.println(new String(readBuffer, "UTF-8")); System.out.println(new String(readBuffer, "US-ASCII")); the output of the first three lines will not let me copy and paste (I assume because they are not normal characters). Here is the output of the Hex: 78786000e67e9e60061e8606781e66e0869e98e086f89898861878809e1e9880 I am reading from a Hollux GPS device which does output in string format. I know this for sure because I did it through C#. The settings that I am using for communication which I know are right from the work in the C# app are: Baud Rate: 9600 Databits: 8 Stop bit: 1 parity: none

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  • wpf progress bar slows 10x times serial port communications... how could be possible that?

    - by D_Guidi
    I know that this could look a dumb question, but here's my problem. I have a worker dialog that "hides" a backgroundworker, so in a worker thread I do my job, I report the progress in a standard way and then I show the results in my WPF program. The dialog contains a simply animated gif and a standard wpf progress bar, and when a progress is notified I set Value property. All lokks as usual and works well for any kind of job, like web service calls, db queries, background elaboration and so on. For my job we use also many "couplers", card readers that reads data from smart card, that are managed with native C code that access to serial port (so, I don't use .NET SerialPort object). I have some nunit tests and I read a sample card in 10 seconds, but using my actual program, under the backgroundworker and showing my worker dialog, I need 1.30 minutes to do the SAME job. I struggled into problem for days until I decide to remove the worker dialog, and without dialog I obtain the same performances of the tests! So I investigated, and It's not the dialog, not the animated gif, but the wpf progress bar! Simply the fact that a progress bar is shown (so, no animation, no Value set called, nothing of nothing) slows serialport communicatitons. Looks incredible? I've tested this behavior and it's exactly what happens.

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  • how to scan a LAN for live hosts using PHP and SNMP?

    - by aag
    I would like to have a quick script listing all active hosts in a LAN, and I am a bit lost. From other posts I figured that this can be done most effectively by polling the DHCP server (in my case a Lancom router) using SNMP. However, I am not familiar with the SNMP commands in PHP. Is snmpwalk() the correct function? Can I get snmpwalk() or any other php function to return an array that contains a list of all live hosts?

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