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  • simple apache2 reverse proxy setup not working

    - by Nick
    I know what proxy is (very high level), it's just I have never set up one, and it feels like I might be missing some big fat point here. My setup: client server (static IP), runs apache on port 80 proxy (has 2 network cards, one is on the clients network, the other one with a static IP on the server network), runs apache on port 80 I am trying to configure these three machines so that when client requests: http://proxy/machine1 It gets served server's pages at server root URL, i.e. http://server/ I can access client pages just fine. However, when I try accessing a page from the client machine, it simply gets redirected to server's IP address, which it clearly can't access since they are not on the same network: ... <meta http-equiv="REFRESH" content="0;url=http://server/machine1"></meta> <title>Redirect</title> ... My apache2 config is: LoadModule proxy_module /modules/mod_proxy.so LoadModule proxy_http_module /modules/mod_proxy_http.so ProxyRequests off <Proxy *> Order Allow,Deny Allow from all </Proxy> ProxyPass /machine1 http://server:80 <Location /machine1> ProxyPassReverse / </Location> What gives? Thanks!

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  • Mac creating files w/ wrong perms on samba share

    - by geoffjentry
    In my group, which is very heterogeneous in terms of machines, we use a samba share to collaborate on files and such. In all but one case, it works as expected (or at least close enough). The one exception is my boss' laptop, a snow leopard macbook air. On his desktop (also snow leopard), if he creates a file it ends up serverside with perms of 774, but when he creates it with the Air, the perms are 644. The key problem is the lack of group write permission on the laptop created files. What's really confusing is that everything that I've looked at on the two machines are identical - same version of OS X, same version of samba (3.0.25b-apple), same settings for the same software, etc. I can't imagine why one machine would be different than the other, but it is. To try to be complete w/ the description, here is the relevant portion of my smb.conf file: comment = my Share path = /path/to/share public = no writeable = yes printable = no force group = myshare directory mask = 0770 create mask = 0770 force create mode = 0770 force directory mode = 0770 EDIT: I looked at three more Macs and all of them worked as expected which leaves this one laptop the true oddball. This wasn't as good as a test as the others though, as they were all leopard.

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  • Troubleshoot dropped wireless connections

    - by Jack
    I was recently hired in the IT department of a small company (~180 users) and one of the issues that people have been complaining about is having their wi-fi connections drop during meetings. The company is using an HP ProCurve Wireless LAN with 10 APs and a controller unit located in the server room. I don't have any experience troubleshooting WLAN in a multi-AP environment, so I'm trying to at least gather information using free or cheap tools. I did a basic site survey using the free version of Ekahau HeatMapper and discovered the following in one of the conference rooms that has been a problem. The program picked up three access points (plus a bunch of others with much lower signals that were out of range): AP 1: SSID: "Unknown SSID" - Signal strength: -48 dBm - -40 dBm. Channel: 2 AP 2: SSID "CompanyMain" - Signal strength: -35 dBm or greater. Channel: 2. Security: WEP (This is the main SSID for the company's WLAN.) AP 3: SSID: "CompanyGuest" - Signal strength: -40 dBm - -35 dBm. Channel: 2. Security: WPA2 (This SSID is the company's "guest" WLAN, which was setup to allow Internet access, but prevent network access.) Is there anything that you see that is clearly a problem from the above? I'm assuming that the unknown SSID might be a big problem, and that it is an AP from a neighboring office that is causing interference. Does that seem likely? Also, regarding channel, should we try changing the channels of our APs to avoid interference with that unknown SSID? (Since everything seems to be on Channel 2?) Should our APs be on different channels? In other words, should the CompanyMain and CompanyGuest APs be on different channels? Finally, any recommendations for free/cheap tools to help me figure this out, and/or a good methodology to follow? Thanks in advance for any help. Jack

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  • Why can't I boot in to Windows Recovery Environment to fix my HDD or salvage my data?

    - by Kevin
    I've been trying to get in to WindowsRE to salvage the files on my Sony Vaio laptop after it failed to load Vista (it finally, consistently displays "Error loading operating system" after months of such intermittent failures, usually rectified via restarts or utilizing Startup Repair or CHKDSK from WindowsRE) . The problem is, after successfully accessing it once after this failure (and many times before over the course of the laptop's life), I can no longer get it to load. During the last successful access (right after the failure), I ran startup repair, which itself failed and notified me that the boot sector was corrupt. I attempted to head in to Sony's proprietary recovery tools menu, which is accessible from WindowsRE when it is loaded from the recovery partition or recovery disk, however it hung. I have since been unable to access the recovery environment after restarting, using any of these methods: Access via the recovery partition (pressing F10 on boot) Access via recovery DVD (created using the same computer when it was healthy) Access via a Windows Vista installation DVD All three methods produce the same results: The computer acknowledges the boot attempt The computer successfully gets passed the "Windows is loading files" screen The computer successfully gets passed the Windows loading screen The computer then stalls at a black screen, while showing HDD activity (via indicator light). After a few minutes, the HDD activity ceases, and after a few more minutes, the over sized cursor that is utilized in WindowsRE appears on the black screen. The actual recovery environment, however, never appears, even after leaving the computer in such a state overnight. What is fustrating is that other bootable utilities, such as SeaTools for DOS and MemTest, boot up and run fine. In running perfectly normally, MemTest was able to produce a plethora of errors utilizing my RAM. I'm inclined to believe the RAM's faultiness may causing the WindowsRE booting to fail. Would this be a valid assumption? If I'm not mistaken, booting from external media utilizes the RAM, so such a reason is plausible, assuming my knowledge of bootloading is correct. Other than that, I can't figure out any reason why all the bootable utilities except WindowsRE run fine. Does anyone know what the problem is, or could be? Any solutions?

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  • Intel NIC X540-T1 non-functional in Ubuntu Server 12.04

    - by Jeff Carr
    I have installed three Intel X540-T1's in servers running Ubuntu Server 12.04, but all are non-functional, no link lights, no packets sent or received, and no connection on ip4 or ip6 whether set up as dhcp or static. Also, dmesg doesn't detect cable connection or disconnection. I updated the default ixgbe driver to Intel's latest version (3.11.33) with no change. The ethernet controller is being reported as X540-AT2 (which might be a problem that I can't figure out how to fix), but the subsystem is X540-T1 so I believe that might be intended. Does anyone have any experience with this that could assist? ifconfig eth2 eth2 Link encap:Ethernet HWaddr a0:36:9f:14:5f:ea inet addr:192.168.101.1 Bcast:192.168.101.255 Mask:255.255.255.0 UP BROADCAST MULTICAST MTU:1500 Metric:1<br> 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) ethtool -i eth2 driver: ixgbe version: 3.11.33 firmware-version: 0x8000037c bus-info: 0000:08:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes lspci -vvnns 08:00.0 08:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller 10 Gigabit X540-AT2 [8086:1528] (rev 01) Subsystem: Intel Corporation Ethernet Converged Network Adapter X540-T1 [8086:0002] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at e8000000 (64-bit, prefetchable) [size=2M] Region 4: Memory at e8200000 (64-bit, prefetchable) [size=16K] [virtual] Expansion ROM at e8280000 [disabled] [size=512K] Capabilities: <access denied> Kernel driver in use: ixgbe Kernel modules: ixgbe

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  • How to fix display on external Samsung Syncmaster shifted to the right when connected to Macbook Pro?

    - by joe larson
    Is there something special I need to do to be able to use external LCD displays with my new MacBook Pro? Do I need extra software, or do I possibly need a different cable? I'm attempting to use an external display with my MBP. I've got a "Mini DisplayPort to VGA Female Adapter for Mac", plugged into the thunderbolt port on my MBP, which I understood should be compatible with thunderbolt. I've tried this with three different SyncMaster models: a B2330 (21.5"), a EX2220 (22"), and a third (also 22" ish) which I don't have the model # for -- but all are 1920x1080 resolution; plus an additional HP monitor of similar size and resolution. In all four cases, the MBP recognizes the screen and choses the correct resolution. However, the display is shifted over about 1 inch. This is true no matter if I change screen resolutions also. The controls on the monitor for horizontal position don't help. Also, sometimes (especially if I drag an app over into the second screen), the screen starts skipping left to right and having bands of fuzz. Additionally, the monitor will periodically blink off for a moment, trying to switch from Digital to Analog and back (the Syncmaster shows text on the screen to tell you it's trying to do this). Often when it comes back from one of these blank-outs, it will show OK (no skipping or fuzz) but still shifted right; then after a few seconds it will go wrong again skipping and fuzzy. This photo shows the worst of it. I've added red rectangles to show the physical edge of the screen, and a yellow rectangle to show the empty space on the left of the screen. (Sorry for the awful quality and lighting!) Also, it's worth noting I am on Mac OS X 10.6.7, and yes I have this update 1.4 installed.

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  • Windows 7 VPN Error 619

    - by TravisPUK
    So I am running Windows 7 Enterprise. This morning I was able to VPN using the built in VPN (Connect to Work Network etc). I had to change my network's IP address range and now the VPN will not work. It just stalls on the Verifying user name and password... message. But then it returns the 619 error. Anybody know why changing my machine's IP address would cause this problem? Where should I be looking to try and fix this issue? I have tried this on a Windows XP machine that also had the IP address range change and this still connects fine using exactly the same connection details. EDIT The internal network range changed from 192.x.x.x to 10.x.x.x. This was done on the entire Active Directory. All machines are running fine and the Windows XP machine, that works going to the same client VPN mentioned above is on the same network. Both the XP and the Win 7 machines are using DHCP served by the Domain Controller. The client domain is not performing any IP range checks/restrictions. The VPN is outside the internal network, connection is being made via the Internet and not passing through any other machine, other than the normal domain machines, ie DNS etc. This is passing through a router and the router has the relevant VPN passthrough options configured. All internal machines are working correctly with other forms of VPN, ie Cisco, Sonic etc (these were tested on other machines, they are not installed on the Vista or Win7 machines). After further testing, this is occurring on all Win7 and Vista machines where they can no longer connect to the client VPN, however all XP machines can still connect fine. This has been tested on three Vista, two Win7 and five XP machines. All machines are on DHCP and tests have been done with both the firewalls turned on and off, as well as with fixed IPs being used. Thanks Travis

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  • tod to avi mpg wmv, convert tod (.mpeg-2) to avi mpg wmv for Movie Maker.

    - by yearofhao
    Need to convert .tod (mpeg-2) to avi mpg wmv download from JVC Everio to PC with tod to avi mpg wmv converter convert tod to uncompressed/raw avi, mpg wmv Have a JVC Everio camcorder? Then you may encounter problems when saving the .tod files to your computer windows movie maker says it can't recognize and edit them to make videos. You may play them using media player but the problem is how to edit them? The bundled software Power cinema could be annoying, since you can only edit when the camera is plugged in to the PC - Power cinema can’t seem to edit from the saved clips alone. So, how do you save them to PC so that you can edit them without the camera and also using windows movie maker? JVC Everio Tod to avi mpg wmv converter costs you a penny to but help you perfectly convert tod file to AVI, MPG, WMV, YouTube FLV, MP4, DV, QuickTime.MOV or other common video formats with fast speed and while keeping the original HD quality. High definition TOD recordings from JVC Camcorders can playback fluidly, convert smoothly and edit professionally on with iOrgsoft TOD file converter iOrgsoft tod to avi mpg wmv Converter has been mostly used by Windows users who use Windows 7 or Vista, after the .tod (mpeg-2 the same codec) downloaded from JVC Everio to PC, it’s best to convert tod to avi, convert to xvid divx, convert tod to uncompressed avi or convert tod to raw avi, tod to mpg, tod to wmv, which are three Windows movie maker best formats to import. TOD to avi mpg wmv converter is a competent video-editing program that allows you to clip/cut TOD video clip, crop the video to encode, and help transfers video to devices like iPhone, iPod, to HDTV connected with Apple TV.

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  • HAproxy with MySQL Master-Master Replication incredibly slow

    - by Yayap
    I have two MySQL servers in multi-master mode, with an HAproxy machine for simple load balancing/redundancy. When I am connected to one of the servers directly and try to update about 100,000 entries, it is completed including replication in about half a minute. When connecting through the proxy it takes usually over three whole minutes. Is it normal to have that type of latency? Is something amiss with my proxy configuration (included below)? This is getting really frustrating as I assumed the proxy would do some sort of load balancing, or at least have little to no overhead. #--------------------------------------------------------------------- # Example configuration for a possible web application. See the # full configuration options online. # # http://haproxy.1wt.eu/download/1.4/doc/configuration.txt # #--------------------------------------------------------------------- #--------------------------------------------------------------------- # Global settings #--------------------------------------------------------------------- global # to have these messages end up in /var/log/haproxy.log you will # need to: # # 1) configure syslog to accept network log events. This is done # by adding the '-r' option to the SYSLOGD_OPTIONS in # /etc/sysconfig/syslog # # 2) configure local2 events to go to the /var/log/haproxy.log # file. A line like the following can be added to # /etc/sysconfig/syslog # # local2.* /var/log/haproxy.log # log 127.0.0.1 local2 # chroot /var/lib/haproxy # pidfile /var/run/haproxy.pid maxconn 4096 user haproxy group haproxy daemon #debug #quiet # turn on stats unix socket stats socket /var/lib/haproxy/stats #--------------------------------------------------------------------- # common defaults that all the 'listen' and 'backend' sections will # use if not designated in their block #--------------------------------------------------------------------- defaults mode tcp log global #option tcplog option dontlognull option tcp-smart-accept option tcp-smart-connect #option http-server-close #option forwardfor except 127.0.0.0/8 #option redispatch retries 3 #timeout http-request 10s #timeout queue 1m timeout connect 400 timeout client 500 timeout server 300 #timeout http-keep-alive 10s #timeout check 10s maxconn 2000 listen mysql-cluster 0.0.0.0:3306 mode tcp balance roundrobin option tcpka option httpchk server db01 192.168.15.118:3306 weight 1 inter 1s rise 1 fall 1 server db02 192.168.15.119:3306 weight 1 inter 1s rise 1 fall 1

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  • Libraries merged folder views

    - by Stigma
    So I pretty much love the Windows 7 Libraries feature, and saw one use for them that I thought would be perfect, but I can't seem to manage it. Basically, a merged view of different folder structures. Suppose I make a new generic library and add three locations to it: C:\Test\, D:\Test\ and D:\temp\Test\. Now, these may look somewhat okay as long as there are no duplicates in these folders. (It wants to group them based on the included directory, which one can work around by looking on google - I don't have the precise trick on hand I am afraid.) But when you get collisions and, say, two of those directories have a Sub directory in them, stuff becomes unusable (assuming Arrange by: Folder view). You'll have multiple folders listed named Sub, which is pretty useless when looking for data. I want folders to get 'merged', which ought to be possible somehow since it can create these merged views based on artist, album etc in other views. So all subdirectories that are double (and recursively checking for doubles inside those, etc) ought to be merged for as far the View is concerned. If files have a collision, I don't really care what happens - hide one, show both, filter out duplicates, whatever. (Although an option would be nice...) Anyhow, is there anyone who knows how to get such a 'merged folder structure' functionality for Libraries? It would be really useful for me.

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  • PHP Output buffer flush issue on Apache/Linux

    - by Iiro Vaahtojärvi
    Hi, I'm running into issues with the PHP output buffer flushing on my Linux web server. The output buffer is maintained correctly and all the right data is pushed to it in my code, but the usual flushing mechanisms won't flush it to the browser. I have tried everything posted here: http://php.net/manual/en/function.flush.php but no success so far. I got a small script from php.net to test it: <?php ob_start(); for($i=0;$i<70;$i++) { echo 'printing...<br />'; ob_get_flush(); flush(); usleep(300000); } ?> This should print "printing..." to the browser 70 times, one line every three seconds. This works fine on my other testing environment which is based on Windows (still using apache, XAMPP package), but on my Linux server it doesn't. It waits for the script to finish before giving anything to the browser, basically ignoring the whole flush command. If anyone has experienced this before or knows of anything that could help (be it server configuration or adjustment to code) it would be greatly appreciated!

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  • How can I recover XFS partitions from a formatted HD?

    - by giuprivite
    I deleted the partition table of my HD. I wanted to format another one, but by mistake, I formatted the wrong one. Then I also created some new partition on it. Now I would like, if possible, to recover my old data. The old configuration was this: A primary NTFS partition with Windows, and a secondary partition with four logical partitions: a swap and three XFS partitions (two for Ubuntu and OpenSuSE, and one with the home for both systems). This is the output I get when I run gpart in a terminal: ubuntu@ubuntu:~$ sudo gpart /dev/sdb Begin scan... Possible partition(Windows NT/W2K FS), size(39997mb), offset(0mb) Possible extended partition at offset(39997mb) Possible partition(Linux swap), size(8189mb), offset(39997mb) Possible partition(SGI XFS filesystem), size(40942mb), offset(48187mb) Possible partition(SGI XFS filesystem), size(40942mb), offset(89149mb) Possible partition(SGI XFS filesystem), size(175044mb), offset(130112mb) End scan. Checking partitions... Partition(OS/2 HPFS, NTFS, QNX or Advanced UNIX): primary Partition(Linux swap or Solaris/x86): logical Partition(Linux ext2 filesystem): logical Partition(Linux ext2 filesystem): orphaned logical Partition(Linux ext2 filesystem): orphaned logical Ok. Guessed primary partition table: Primary partition(1) type: 007(0x07)(OS/2 HPFS, NTFS, QNX or Advanced UNIX) size: 39997mb #s(81915360) s(63-81915422) chs: (0/1/1)-(1023/254/63)d (0/1/1)-(5098/254/51)r Primary partition(2) type: 015(0x0F)(Extended DOS, LBA) size: 265245mb #s(543221849) s(81915435-625137283) chs: (1023/254/63)-(1023/254/63)d (5099/0/1)-(38912/254/2)r Primary partition(3) type: 000(0x00)(unused) size: 0mb #s(0) s(0-0) chs: (0/0/0)-(0/0/0)d (0/0/0)-(0/0/0)r Primary partition(4) type: 000(0x00)(unused) size: 0mb #s(0) s(0-0) chs: (0/0/0)-(0/0/0)d (0/0/0)-(0/0/0)r Looking the first eight lines, it seems the data are still there... but I don't know how to recover them. I have a free second HD of about 500 GB (the formatted one is 320 GB) that I can use for the recovery process.

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  • my X server doesn't load a module called "glx", but my video drivers seem to be installed

    - by rumtscho
    I just got a new, very wide monitor (2560x1440) and there is no sense maximizing my applications. So I installed Compiz Config Settings Manager and enabled Grid. Nothing happened, the shortcuts don't move application windows. Went to System - Preferences - Appearance, the Visual effects tab. It at "disabled". When I try to set them to "normal" or "extra", a message box appears telling me that it's searching for video drivers, then disappears, and I get an error message "Desktop effects could not be enabled". I opened Xorg.0.log, and had errors there: (EE) Failed to load /usr/lib/xorg/modules/extensions//libglx.so (II) UnloadModule: "glx" (EE) Failed to load module "glx" (loader failed, 7) (II) LoadModule: "extmod" Going to Administration - System - Hardware drivers, it said that there are no available and/or installed hardware drivers. But apt-get said that it cannot install nvidia-glx-185, as it is already installed. Googling my error message suggested that I install and run something called envyng. This let me install the nvidia drivers again, and now I can see in the Hardware Drivers window that they are installed and active. But the error message in Xorg.0.log remains, and I still cannot enable the Compiz effects or use Grid. Now, I don't have enough Linux experience to understand if this is a single cause-effect-chain of problems, or three independent ones, but I'd appreciate help for any of them. I am running Ubuntu 9.10, the video card is a GeForce 7600GS.

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  • Windows Remote Desktop: "configuring remote session" closes without error

    - by icelava
    I have a desktop/laptop pair at home operating x64 Windows 7 (the desktop was upgraded from Windows Vista, works just fine). I remote desktop to them on a daily basis when outside. In recent weeks, I would occasionally fail to connect to my desktop. It can connect and authenticate fine, but the "configuring remote session" dialog would simply close and not show me the desktop window or any error message. There is no error event log relating to this on the desktop computer. Some suggestions call for disabling remote audio, which mine already is, but trying different audio modes did not yield any different result. I am not too sure if this is related to video card drivers (they do get auto-updated), since remote desktop video is supposed to steer via a virtual device driver? Nonetheless the desktop operates three monitors via an ATI Radeon HD5770 (1 Displayport, 2 DVI). I do not see a real problem with that since I can mostly connect and operate it remotely. I try to "remote tunnel" via my home laptop but obviously won't work either as the problem lies in the desktop. What other conditions can cause remote desktop to break without error? UPDATE I came home and still couldn't connect to the desktop until I restarted the entire system.

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  • Computer resetting semi-randomly

    - by Peter
    Hi, I'm having a problem with my desktop whereby it sometimes resets itself semi-randomly. For example, I'll switch it on, it'll boot an OS and shortly after getting to the desktop it will immediately reset with no warning. The time isn't consistent - sometimes it does it before reaching login. I'm pretty sure it's not an OS thing; have tried Ubuntu and a Windows install and both exhibit it. It also doesn't appear to be heat-related because sometimes it appears to be able to "get past" it and will then run stably even under load; if anything it seems to be worse from a cold start. My gut feeling is some kind of power issue but I'm clutching at straws a little. Any suggestions on how I could go about testing it or trying to narrow the problem down would be appreciated. The machine is four years old now so while I can replace components if needed, it's not worth enough that I'm comfortable buying new parts without being pretty confident that they'll fix the problem. Thanks in advance for any help :) Edit: Okay, the motherboard is a MSI K8N SLI; CPU is an Athlon64 X2 4200+. Has one video card, a GeForce 7800GT. 1GB RAM, not sure of brand; 3 hard drives, two SATA and one PATA. Flashed motherboard to latest BIOS some time ago. Edit the Second: I thought I'd narrowed it down to the PSU for a while, but then it recurred again. I ended up pulling everything out but CPU, RAM and motherboard and it still seems to be stuffed (if anything, it's gotten worse in the last couple of days). I assume it's one of those three components, but the machine is old enough that I don't really want to spend money replacing any of them. So thanks for everyone's suggestions; much appreciated!

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  • VirtualBox communication from Linux to/from Windows 7

    - by J. Otto Tennant
    VirtualBox is running in Windows 7 as the host. VirtualBox has the two modifications (one is called Guest Additions; don't remember the other). The Virtual machine has "bridged" networking selected. I have SAMBA set up (now, the problem may be here; it has been three or four years since I last did this) on the Linux guest machine. Neither guest nor host sees the other. From the Windows 7 command prompt, the IP address of the Linux guest pings. The IP address of another computer (a separate Windows 7 on the wireless network) pings from the Linux guest. (I have no idea what IP address the Windows 7 host itself has. The output of "netstat" does not seem to be useful.) So, it seem to me that something should be working. The only workgroup on the LAN is inventively named WORKGROUP. SMB4K should be seeing something. There must be a simple setup step that I am missing. (FWIW, there are two processes running smbd, and no process is running nmbd. YaST says that nmbd is set to run. I am not sure what this means.)

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  • Excel concatenate strings from cells listed in third cell

    - by Puddingfox
    I have an excel 2007 workbook that has five columns: A. A list of machines B. A list of service numbers for each machine C. A list of service names for each machine ...(nothing here) I. A list of Service Numbers J. A list of Service Names Each machine listed in column A has one or more services running on it from the list in column J. I would like to be able to add services to a machine (i.e. updating the cell in Column C) by simply adding another comma-separated number to Column B. For Example, The first row would look like this assuming Machine1 has the first three services: | A | B | C | Machine1 | 1,2,3 | HTTP,HTTPS,DNS Right now I have to manually update the formula in column c for each change I make. The current formula is: =CONCATENATE(J1,",",J2,",",J3) I would like to use something like this (please forgive my syntax; I'm a coder and I'm treating cell B1 as if it is an indexed array): =CONCATENATE(CELL("J"+B1[0] , "," , "J"+B1[1] , "," "J"+B1[2]) Although having variable numbers of services makes this even more difficult. Is there any way of doing this. For reference, this is columns I and J: | I | J | 1 |HTTP | 2 |HTTPS | 3 |DNS ..... | 16 |Service16 I don't know very much about Excel so any help is greatly appreciated.

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  • Tcpreplaying using VMware

    - by Methos
    This is more like a testbed setup question. I want to use VMware to debug some networking code in the linux kernel in the VM. My VM has two network interfaces. What I want to do is replay the capture file in the host and receive the packets in the VM. My problem is I do not see replayed packets in the VM. I am running VMware and tcpreplay on the host as sudo. Hence I think there should not be any problem access devices files. I am running VMware workstation 7.0 a. I first began with Custom networking as that provides option of creating your own virtual network name. I wrote /dev/vmnet3 and /dev/vmnet4 for the two interfaces respectively. However, after booting the guest, I did not see any of these interfaces or devices files (in /dev) created on the host. b. Then I tried 'Host Only', but that does not show what bridge/device file is associated with the interface. c. Finally I tried bridged networking mode. I see vmnet1, vmnet8 and vboxnet0 on the host. I have tcpreplayed the capture file on each of these interfaces, for all the above three cases. I tried to capture packets in the VM using "tcpdump -i any". However, I do not see any packets. Any ideas/pointers?

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  • Load balanced IIS. Should I use NLB, or linux-based reverse proxy, or something else?

    - by growse
    What would be the best approach for load-balancing at least 2-3 Windows 2008 R2 IIS webservers running a multitude of .NET applications? My choices appear to be: 1) Hardware-based network device load balancer, like a Cisco CSS 2) Windows NLB 3) Some sort of linux based proxy, either haproxy or other The three servers sit as VMs on a vSphere farm, so I have the ability to clone to up the instance count in times of high load. I control the switch that the vSphere hosts are plugged into (Cisco 3750), but don't control the switching/routing infrastructure beyond that to the clients. (1) Is too expensive, and probably overkill for my needs. I've included this in case someone figures out a cunning way to do it on my existing network kit, which I doubt. (2) would seem to be the obvious "built-in" option, but seems to be quite fiddly messing around with network interfaces, multicast, and generally other things that seem to be needlessly complex. It's also fairly stupid, in that it can't remove hosts from the pool if they start throwing 500 errors or otherwise go wrong (3) is the most interesting option, as it would appear to offer the most flexibility and customizability, but without having to mess around with the network. However, while I'm familiar with the reverse-proxy capabilities of lighttpd etc, I'm not that well read on other options like HAProxy, which might be able to offer a lot more. Which would you go for, and is there anything I've not thought of?

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  • MGE UPS Cut power - What happened?

    - by JT.WK
    I have 3 x MGE Pulsar M 3000 2700w UPS units within my server room which have run perfectly up until now. On Saturday morning I noticed that one of these UPS units was no longer outputting power, the lcd displayed a message saying "load not powered" and told me to press the power button to start output. Needless to say that the servers, switches and routers is was supporting were all turned off. I tried pressing and even holding the power button, but the unit refused to start back up again. Only power cycling the unit got it back up again. I have checked the logs on the UPS, although they were useless. Nothing out of the ordinary, and no email notifications had been sent. The output level sits on about 51% and all battery checks are OK. It is now three days on and the UPS is still up and running (although I am scheduling an outage to get it out of there ASAP). Does anyone have any idea what could have gone wrong here? Is there anything else that I can check that could help?

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  • Network tools not working with a 3G connection

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

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  • Vista laptop 1 connects to network but Vista laptop 2 doesn't

    - by Jaips
    (Sorry if this is a dulipcate. I did a hunt but couldn't find matching question) We recently got a new router for our network (thomson TG585v8). It was already pre-configured by the ISP and was easy to setup. Both Vista laptops in this home network connected without trouble as well a iPod touch, all via wifi. In the last two days one of the laptops has been unable to connect cleanly to the network (connects as unidentified network). The other laptop, and iPod have not had any issues. I can't think of anything that has changed to make this happen now. I have rebooted the laptop and the router. I have updated the laptop wireless driver I have checked the laptop is set to automatically get IP I have logged into the router which correctly identifies all three wireless devices. The problem laptop connects via LAN without issue. Some things that may or may not matter: The problem laptop also sometimes uses a 3G dongle Both laptops use Windows Live Mesh to sync folders Laptop is usually set to go to sleep NB: it seems this is an intermittent issue, after an hour (since i noticed it) it seems to have fixed itself. Would love ideas though to solve this problem for good.

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  • Installing WindowsAuthentication breaks authentication / web.config?

    - by Ian Quigley
    I have a clean Windows 2008 R2 box (on a VM) and have installed IIS 7.5 with default options. I then copied a website to it (from Windows 7, IIS 7) and after a little tweaking the website is working fine. The website is currently using and working with Anonymous Authentication. I have gone back to the Windows Components/Sever Manager, Roles - Security and ticked and installed Windows Authentication. When I check my server in IIS (top level above sites) - Authentication, I see Anonymous Authentication (enabled) ASP.NET Impersonation (disabled) Forms Authentication (disbaled) Windows Authentication (enabled) When I check my default website - Authentication, I see as above but "Retrieving status" and an error dialog saying There was an error while performing this operation. Details: Filename c:\inetpub\wwwroot\screwturnwiki\web.config Line number: 96 Error: This configuration section cannot be used in this path. This happens when the section is being locked at the parent level. Locking is either by default (overriderModeDefault="Deny"), or set explicity by a location tag with overrideMode="Deny" or the legacy allowOverride="False". I have tried hand editing the web.config with no success. UN-installing Windows Authentication happily returns my site to working with Anonymous Authentication, and allows me to enable/disable these three options. FYI. I am using ScrewTurnWiki with the Active Directory plug in.

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  • open source solution to a gateway for a network of a housing cooperative of 150 people

    - by SirDinosaur
    i just inherited a barely functioning network for a student housing cooperative of about 150 people. in it's current state, as i understand it from the previous person in charge of the network, we have working wireless access points and working ethernet cords going to working gigabit switches going to a barely functioning gateway (right now a simple home router) to one of three possible outbound connections. it is possible to connect to the network through the wireless or ethernet, but especially during peak hours, packets / connections are likely dropped or otherwise get no response. my intuition tells me to replace the gateway with something that can handle multiple outbound connections (WAN) and one inbound connection (LAN), while the rest of the network seems suitable for now. i'm somewhat knowledgable in Linux (been using Debian after first Arch Linux) and i want to use as much open source as possible, but i'm confused whether or not a simple server that i could easily understand will work for this situation. do i need specialized hardware to handle the switching more effectively? if so, what are my options? (i found this, thoughts?) or if a Debian server would work, anything else i should about the specs required for this type of server? also links to any useful information on using open source to maintain this type of network would be most appreciated. <3 P.S. crossposted http://redd.it/yybp2.

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  • Inconsistent DHCP replies with Windows 2008R2 DHCP server

    - by verbalicious
    I've got a Windows 2008R2 standard server running DHCP services. We've noticed that certain clients are receiving inconsistent DHCP replies. We have over 175 Windows workstations in this VLAN that don't seem to have trouble getting DHCP leases. However, PXE-booting clients trying to reach our DHCP server are able to get a lease inconsistently. Additionally, we tried using the "dhcping" tool against our DHCP server and found that roughly two of every three requests time out with "no answer" -- and this holds true when we set the timeout value on dhcping to 20seconds. After a failed attempt, however, we may get a dhcp lease reply immediately with dhcping. This leads me to believe that this issue isn't confined to PXE booting clients, but something more systemic with my LAN layer2 or DHCP. And that possibly my 175 windows clients are experiencing this in some form without my knowledge. We have over 30% of our scope available so the addresses are there. I was unable to find anything in the Windows server "DHCP-Server" log. Of course, my goal is to have my DHCP server reply to every request that it receives on the LAN!

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