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• Solaris TCP stack tuning

  - by disserman

  We have a large web project (about 2-3k requests per second), using haproxy (http://haproxy.1wt.eu/) as a frontend and load balancer between the java application servers. The frontend (haproxy) is running on Linux but we are going to migrate it to the Solaris 10 as all our other servers are running under Solaris. After switching a traffic I see the two things: a) the web site became loading slower (5-10 seconds with images in comparison to 2-3 seconds on Linux) b) sometimes haproxy fails to perform a "lifecheck" (get a special web page and analyze http response code) due to the socket timeout. After switching traffic back to Linux everything is okay. I've tried to tune all params I found in /dev/tcp but no progress. I believe the problem is in some open socket limitations. If someone can point me to the answer, I would be greatly appreciated. p.s. haproxy is running under Xen DomU on Linux (Kernel 2.6.18, Debian 5), under zone on Solaris (10 u8). the only thing we did on Linux is increasing of ip_conntrack_max (I believe Solaris option tcp_conn_req_max_q is the equivalent).

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• PXE boot -- kernel not found on TFTP server

  - by user70523

  I followed the following link for PXE boot, http://www.howtoforge.com/setting-up-a-pxe-install-server-on-ubuntu-9.10-p3 and I was able to ping the client from the server and also when I booted up the client It is getting the IP address from the server. But later,I got this error PXELinux 3.82 2009-06-09 . . . [other informations] !PXE Entry point found (we hope) at 9D3B:0109 via plan A UNDI code segment at 9D3B len 16C2 UNDI data segment at 933B len A000 Getting cached packet 01 02 03 . . . [other informations] TFTP prefix: Trying to load: pxelinux.cfg/ec5db4c0-74fe-d511-b9e7-3d9235afe5a1 Trying to load: pxelinux.cfg/01-00-17-31-b6-5e-a8 Trying to load: pxelinux.cfg/0A64491E Trying to load: pxelinux.cfg/0A64491 Trying to load: pxelinux.cfg/0A6449 Trying to load: pxelinux.cfg/0A644 Trying to load: pxelinux.cfg/0A64 Trying to load: pxelinux.cfg/0A6 Trying to load: pxelinux.cfg/0A Trying to load: pxelinux.cfg/0 Trying to load: pxelinux.cfg/default Unable to locate configuration file Boot failed: press a key to retry or wait for reset I have put all the files mentioned in the link in tftpboot. Can anyone explain what could be the problem. Thanks in advance

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• Apache+PHP on Windows Server 2008

  - by Álvaro G. Vicario

  I've installed Apache/2.2 and PHP/5.3 lots of times under Windows XP, Windows Vista and Windows Server 2003. The official *.msi installers work fine and configure everything. Now I need to install them into a Windows Server 2008 R2 Standard 64-bit box and I'm facing nothing but problems: There are no official 64 bit binaries for Apache and no binaries at all for PHP (official or third-party). It's alright, I'll do with good 32 bits, but it's kind of surprising. Official documentation is vague, generic and completely unaware of UAC or any recent Windows security feature. The PHP installer is unable to configure mod_php and the Apache installer is unable to configure... well, Apache. After three hours I've finally reached the point where I'm installing everything in the root folder and assigning full control access to all users in all files and directories and all I've got is a PHP-less Apache server that's able to serve static pages. So I guess it's time to stop and think. My question is: Has anyone installed an Apache+PHP production server under Windows Server 2008 in a serious, secure and reliable way and documented the whole process? Or should I just find a bundle like XAMPP and the like that requires no installation? === EDIT === I've installed Xampp Lite 1.7.3 and everything was working in 5 minutes. I'd still like to find some documentation about installing the original packages: XAMPP installs tons of stuff I don't need and offers no tool to enable and disable PHP extensions.

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• Way to speed up load-balanced ssl using nginx?

  - by paulnsorensen

  So the setup for our website is 4 nodes running rails 3 and nginx 1 that all use the same GoDaddy certificate. Because we are a paid site, we have to maintain PCI-DSS compliance and thus have to use the more expensive SSL ciphers -- also we force SSL using Rack. I've recently switched over to Linode's NodeBalancer (which I've read is an HACluster), and we're not getting the performance we'd ideally like. From what I've read, it looks like terminating the SSL on the nodes using the high cipher is what is causing the poor performance, but I'd like to be thorough. Is there anything I can do? I've read about other ways to terminate the SSL before the NodeBalancer (like using stud), but I don't know enough about these solutions. We certainly don't want to do anything experimental or anything that has a single point of failure. If there really isn't anything I can do to speed up the SSL handshake, my alternative would be to support certain pages on Rails using a secure and insecure subdomain. I've found a few guides that walk through that, but my resulting question is in this situation, would it be better to have nginx handle forcing ssl on the secure subdomain instead of rails? Thanks!

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• Is one server on a vlan unnecessary?

  - by moomoochoo

  DETAILS I've been researching web hosting solutions in Japan. Based on this question one of the services available seems to be a VLAN. I've read about the advantages of such a system for a large organization, but there doesn't seem to be much information regarding smaller setups. I take that to mean that for one server it is likely to be unnecessary? My concern is that I don't know how many other servers are on the WAN, so regardless of how many servers I use a VLAN might still be a good idea. SERVER INFO One dedicated server would be used. It would not be virtualized. My Research so far Based on comments here, a VLAN would be useful for mitigating these problems. A user on another server could, either mistakenly or maliciously, assign one of your IP addresses to their server, resulting in a "duplicate IP" situation that would cause connectivity issues. A user on another server could poison the arp cache and potentially redirect traffic to snoop on communication intended to/from your server. (later in the discussion this point was said to be unrealistic.) QUESTION Is it worthwhile getting a vlan for one dedicated server? Will it be easier/the same/ harder to manage?

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• HP c6180 driver refuses to install - "must reboot to continue delete files and continue install" loo

  - by Aszurom

  User called me last night, can't get HP drivers to install for printer. 500 meg download for latest c6180 driver. PC says "computer must be restarted to delete some files, then setup will continue." and it won't pass that point. (that's not exact phrasing of the error, and I'm not on the system now) Target machine is XP SP2. I upgraded to SP3. Fully patched. Ran malwarebytes, spybot, hijack this and turned off all startup entries. I noted that windows update also failed on optional printer driver updates for other printers installed on the machine. Went to printer server properties, removed all print drivers from system, deleted all printer ports. Made sure no services were marked disabled. After 5 hours of fighting this I started to get desperate, and uninstalled anything that referenced HP in the machine at all. Still no cure. I'm 6 hours into this and completely stumped. Google returns nothing applicable except unanswered requests for help on same topic.

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• I used disk copy to clone my drive, now my windows 7 profile won't load correctly

  - by RzK

  I used easeuse disk copy, after acronis, clonezilla, windows image restore failed me. Basically it copys all sectors, I set it to skip bad sectors(40). The source drive works, it just gave me a couple errors and stopped booting at one point. The drive is an identical copy, minus 40 bad errors. The drive is set to C and active partition, I rebuilt the boot order. I've ran sfc /scannow and ran chkdsk /r chkdsk found 20kb of bad sectors if I remember right. Now the issue I get is when I log into my profile which was saved right, I get a blank light blue wallpaper (non-license) explorer.exe is not running, and there are only 4 processes running in taskmanager, including taskmanager. I would try a repair install but CRTL-E would not open, nothing will open once I force start explorer.exe, almost like all services are down. What should I do? Fresh install is almost not a possibility I will try and fix this issue. sfc /scannow /offbootdir=c:\ /offwindir=c:\windows returns "Windows Resource Protection could not perform the requested operation"

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• Changing MX records in named zone file

  - by Paul England

  I forgot how all this works. I have a GoDaddy account, using my own DNS and whatnot. I'm having trouble getting my email to work. They said I need to update my MX records. basically, I have the following. 184.168.30.42 is the domain's IP address, obviously. gamengai.com. 14400 IN NS n1 gamengai.com. 14400 IN NS n2 ns1 14400 IN A 184.168.30.42 ns2 14400 IN A 184.168.30.42 gamengai.com. 14400 IN A 184.168.30.42 localhost 14400 IN A 127.0.0.1 ftp 14400 IN A 184.168.30.42 www 14400 IN A 184.168.30.42 mail 14400 IN A 184.168.30.42 subdomain 14400 IN A 184.168.30.42 gamengai.com 14400 IN MX 10 mail Mail doesn't work though... they say to make the following change: 0 smtp.secureserver.net 10 mailstore1.secureserver.net So should the last line point to mailstore1.secureserver.net instead of mail in the last field? What about the other line? I had this working at one time, but it's totally gotten away from me. It's a virtual dedicated server and their support for this stuff is pretty bad... almost as bad as my admin skills since I went the programmer route.

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• Mac Mini server (10.6) behind router with FQDN hostname

  - by thechriskelley

  I have a Mac Mini running Mac OS 10.6.6 Server that will be part of a local network, and a static IP from my ISP. I'd like to set up DNS for the Mini with a FQDN as the hostname (example.com) properly. The Mini is behind a router (Apple Airport Extreme) and is given a private, static IP address. I can't assign it the public static IP directly because it's behind a router with DHCP/NAT for other machines on the local net. My end goal here is for services to resolve to the server properly from outside and inside the local network to users via example.com (and subdomains like mail.example.com, www.example.com), which will point to the public static IP assigned to the router. Will DNS work/resolve properly (for mail services and other subdomains) if it has a private ip address, but the necessary services are forwarded properly through NAT? I'm open to any (hopefully better) suggestions, as my current setup doesn't seem like it's the best way. Currently, more hardware or another public static IP is not possible. With the current setup, it seems as though one static IP is not necessary anyway. Thanks in advance for any insight.

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• Missing Home Folder XP Clients 2008R2 Domain

  - by minamhere

  We just completed a migration from Server 2003 to Server 2008R2. Everything seems to have gone well except that many of our desktops have stopped mapping the Home Folder as set in Active Directory. Other mappings that are defined on individual clients are mapping just fine, these mappings are all on the same file server as the failing Home Folders. Half of the users are on 1 file server and half are on another. Users from both servers are having this problem. I have enabled the Group Policy setting to "Wait for network before logging in". I enabled the policy to "Run Logon Scripts synchronously". There are no errors on the Domain Controller or either File Server. When I enabled Group Policy Preferences as an attempted workaround, I get this error: The user 'V:' preference item in the '<Policy Name>' Group Policy object did not apply because it failed with error code '0x800708ca This network connection does not exist.' This error was suppressed. This seems to indicate that the network connection is not ready by the time Group Policy is processed. But isn't this the point of the "Wait before logging in" and "Run Logon scripts synchronously" settings? Some other background facts: The new Server 2008R2 installation is a Virtual Machine. It is on a new Subnet in a different building from the old server. DNS and DHCP were also migrated from the old DC to this new DC. These Home Folders were all working properly before the migration. Are there new security restrictions/policies in Server 2008R2 that might be causing this? Is there a way to check whether I have an underlying network connectivity issue? Maybe moving the server to the new building is causing a delay/timeout? Any thoughts or ideas on what could be causing this or how I can resolve this? Thanks.

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• win8: access denied to external USB disk; update access rights fails

  - by Gerard

  I use to work with 2 laptops (vista and win7), my work being files on an external usb disk. My oldest laptop broke down, so I bought a new one. I had no option other than take win8. 1/ I suspect something changed with access rights, as my external disk suffered some "access denied" problem on win8. I was prompted (by win8) somehow to fix the access rights, which I tried to do, getting to the properties - security. This process was very slow and ended up saying "disk is not ready". Additonnally, the usb somehow was not recognized anymore. 2/ Back to win7, I was warned that my disk needed to be verified, which I did. In this process, some files were lost (most of them i could recover from the folder found00x, but I have some backup anyway). Also, I don't know why, but under win7, all the folder showed with a lock. 3/ Then back again to win8. Same problem : access denied to my disk + no way to change access rights as it gets stuck "disk is not ready". Now I am pretty sure there is some kind of bug or inconsistence in win8 / win7. I did 2/ and 3/ a few times. At some point, I also got an access denied in win7. I could restore access rigths to the disk to "system" (properties - security - EDIT for full control to group "system" ...). But then I still get the same access right pb on win8, and getting stuck in the process to restore full control to "system" -- and "admin" groups. Now, after I tried for more than 3 days, I am losing my patience with that bloody win8 which I did not want to buy but had no choice. I upgraded win8 with the windows updates available. Does not help. Anybody can help me ?

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• Attempts at NIC teaming on Server 2008 R2 with PRO/1000 MT

  - by Klaus

  I have a Dell PowerEdge 1850 server and a gigabit switch that supports nic teaming (and was configured to do so). The server has a total of four Intel PRO/1000 MT ports, which also support teaming. But.. for some reason Intel does not actually have a version of the drivers/ProSet that will work for these cards on 2008 R2. You have to use the built-in drivers that come with 2008 R2, which do not support the additional features. According to their website, they have no plans to change this. Strangely enough, I experimented with various drivers in an attempt to force it to work. At one point, the teaming was working, but there were side effects (such as the DNS server refusing to start). So now I am back to running just one of the cards, (very) frustrated about the whole situation. I have looked all over to see if there is some way around this, but have not had any success. I know I can probably just get a new network adapter for it, but with the good deal I got, that would cost more than the server! :) While staying with 2008 R2, does anyone know of any possible alternatives? Thanks!

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• can't access SATA card config screen on boot, nor access the disks

  - by Ronald

  We've just upgraded our file server using an ASUS P6T WS Pro board, running FreeBSD-RELEASE 8.2 and using zfs to manage 12 WD20EARS disks. Since our 3ware card has been giving us trouble we started using the six on-board SATA connectors and got a SuperMicro USAS2-L8i to provide eight more ports. Mechanically, the card is an awkward fit but electrically it all seems ok. Upon boot, the LSI controller shows up and states that pressing ctrl-c will bring up the LSI Config Utility. When doing that, the message changes to state that the utility will be started after initialization, however that never happens. There does seem to be an error message that's only displayed too briefly to read and seems to be about PCI and "not enough space". (That message is pushed off by a hardware summary and I've found no way to scroll back at this point.) The disks do not show up in any recognizable ways after booting, either. I found a hint in another discussion to check the address mapping on either the card or the motherboard BIOS, but have found no way to do that. So what I tried on a hunch is to disable everything that's on-board, including network adapters, Firewire controller and SATA. In fact, after doing that, I can successfully launch the LSI Config Utility. As far as I can tell, all looks well in there, and when booting in that configuration it also displays a list of the disks connected to it, which looks just fine as well. Only problem now is that I can't boot that way, because I need the on-board SATA controller and network adapters. As soon as I re-enable any of them I'm back to square one. That discussion I mentioned about mapping addresses said to try D000, then D7FF, then DFFF, in order. The LSI Config Utility shows the card address as D000 but offers no way of changing it. Any tips or insights would be appreciated.

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• Sender's Sendmail says "stat=Sent" but recipent doesn't receive the message

  - by user44774

  Guys, I am trying to figure out why sendmail is saying that it sends out an email but I actually never get it. This is from the logs when the email is being sent out: I have replaced the email address with some fake address and I have also replaced the name of the server with a fake hostname. The most significant point of this information from the logs is that it shows that the "Message was accepted for delivery". Do you guys have any suggestions as to why it seems like the message goes out but I never get the actual email? Jun 2 14:34:40 server sendmail[9668]: o52IYeSi009668: --- 250 2.0.0 o52IYeSi009668 Message accepted for delivery Jun 2 14:34:40 server sendmail[9667]: o52IYe9I009667: [email protected], ctladdr=rick (500/500), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30058, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (o52IYeSi009668 Message accepted for delivery) Jun 2 14:34:40 server sendmail[9668]: o52IYeSj009668: <-- QUIT Jun 2 14:34:40 server sendmail[9668]: o52IYeSj009668: --- 221 2.0.0 server.server.com closing connection Jun 2 14:34:41 server sendmail[9670]: o52IYeSi009668: SMTP outgoing connect on [192.168.1.9] Jun 2 14:34:41 server sendmail[9670]: o52IYeSi009668: to=<[email protected]>, ctladdr=<[email protected]> (500/500), delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120368, relay=mailhost.worldnet.att.net. [207.115.11.17], dsn=5.1.1, stat=User unknown Jun 2 14:34:42 server sendmail[9670]: o52IYeSi009668: o52IYgSi009670: DSN: User unknown Jun 2 14:34:42 server sendmail[9670]: o52IYgSi009670: to=<[email protected]>, **delay=00:00:00, xdelay=00:00:00, mailer=local, pri=31625, dsn=2.0.0,** ***stat=Sent*****

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• How to create an MST for silent install using Orca?

  - by Sanarothe

  Hi. I'm trying to deploy 7zip via GPO; I assigned the original MSI, but the package installation simply doesn't take place. What I've gathered is that I need to create an MST. In the spirit of trying to learn as much as possible about it, I've opted to use Orca rather than a third-party automagic tool, but I'm at a loss as to which fields to edit. So far the only change that I've made is to give the license accepted checkbox a value of "1" instead of pointing to another key that, still, just gave it a value of "1." So, to give this some structure, How does (Or what criteria should I consider) creating a MST make the install noninteractive/silent? Do you have to manually reconfigure the MSI to simply not perform the GUI aspects? Or do I have to execute the program in silent mode after defining the variables the the installer requests? (Though, of course, it seems that would defeat the purpose of the MST) How do I determine which fields I need to edit? I've loaded the installer and it takes three inputs: License acceptance, feature set and installation location. I want all of the default values: I'm just trying to deploy it at all, not customize the installation. I BELIEVE that I should be messing with some values in the Registry table, but I really don't know. If I'm not asking the right questions, can someone point me to a THOROUGH resource or documentation for this process? I've already gone over the technet articles on basic Orca use and deployment, but I couldn't really find anything on creating MST that didn't involve a third party program in which one runs a 'dummy' installer to get the before and after snapshots. Thank you very much, Cameron UPDATE: After spending the day troubleshooting, I finally got my server to send out 7zip, but not until I had also assigned firefox. Not sure why it didn't want to send out 7zip by itself, but I also had some domain naming problems. Thanks for the input (GPResult helped enormously.)

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• Wordpress hacked. Disabled hacked site but bad traffic continues [closed]

  - by tetranz

  Possible Duplicate: My server's been hacked EMERGENCY My Ubuntu 10.04 LTS VPS has been hacked, probably via a WordPress site. I was alerted to it when I noticed the incoming traffic was unusually high. A WordPress site was littered with eval(base64_decode(...)) code in lots of files. My fault, I had some files writeable by www-data which shouldn't have been. I've disabled that site (a2dissite ... and restart Apache). This has reduced it but I am still getting some malware type traffic. My server runs several WordPress and Drupal sites and a home grown PHP site. I have captured traffic with tcpdump and looked at it Wireshark. It's reaching out to the login page of some Joomla sites, trying multiple logins. The traffic stops when I stop Apache. If I a2dissite every site and reload (not restart) Apache the traffic continues. At that point I have no virtual hosts running and no DocumentRoot in my apache2.conf so I don't know how Apache is still running something. I have searched the other sites with grep for likely looking php code with no success. I may have missed it but I haven't found anything suspicious in the Apache logs. I have mod-status running. I haven't really seen anything much there except that someone is still trying to do a POST to the theme page on the disabled WordPress site but they now get a 404. What should I be looking for? Are there any tools or whatever which would give me more info about how Apache is generating that traffic? Thanks

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• Ubuntu 11.10 Virtual-box Unity 3D not working

  - by naveen

  After struggling for four hours, I still cannot get Unity 3D of Gnome 3 to work on my VirtualBox - I have been pouring through Internet and forum posts but to no avail. Here's what I've done so far: VirtualBox 4.1.4r74921 on Windows 7 Installed Ubuntu Desktop 11.10 ( 32 bit ) Enabled 3D acceleration Allocated 1.5GB of RAM Allocated 50MB video memory (hope this is not the culprit) Installed Guest edition 4.1.4 Did apt-get update and apt-get upgrade Booted back in to Ubuntu - falls back to Unity 2D Shared folder, mouse integration all works, so guest edition is properly installed Tried the command and below is the output /usr/lib/nux/unity_support_test –p OpenGL vendor string: Mesa Project OpenGL renderer string: Software Rasterizer OpenGL version string: 2.1 Mesa 7.11 Not software rendered: no Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: no GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: no I am trying to find what the "no" means but cannot find any good answers. Inter Core i5 processor 4GB of RAM on the host Display adapter: NVIDIA GeForce 8400GS Is anyone else facing the same problem? If so, can you point me to a solution or any reference where I can find a solution?

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• DisableCrossAccountCopy not working on some Outlook installs, working on others, both going against Exchange

  - by MikeBaz

  As part of a mail migration project from one Exchange organization to another, we need to be able to prevent users from moving/copying messages between their accounts in each organization. (Yes, users will think this is evil; no, it's not my decision; yes, users will hate us.) Luckily, we thought, Outlook 2010 provides the DisableCrossAccountCopy registry value/policy (cf. http://technet.microsoft.com/en-us/library/ff800883.aspx). (Because you can't do multiple Exchange organizations in a single profile before Outlook 2010, this only matters on Outlook 2010. Yes, I'm ignoring for the sake of this question copy/move to/from the filesystem.) In our test lab, in a test forest with a test Exchange organization, with a second Exchange account added to the profile in either of the "real" Exchange organizations, with the value set to "*", everything works as expected. On a workstation in one of the production domains, however, the setting does not seem to work. We have tried it under HKCU, HKLM, HKCU\Software\Policies, and HKLM\Software\Policies. It simply seems to be ignored. The value was set in the OCT on a test machine, but the OCT (and the ADM/ADMX file) have the wrong type for the value. We have located the value in the registry and removed it everywhere it is found, we think, and put it back in HKCU, but it still isn't taking. At the moment, a clean Outlook install is not an option - even if it was, we at this point would need to know what to do to fix the pushed copy (I didn't push the copy out to thousands of machines, I've just been asked to help clean up the current mess). Thoughts?

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• Magento Apache Config & Memory Issues

  - by cheshirepine

  I have a Magento installation on a VPS that is giving me a headache. This particular VPS has a reasonable spec - 2gb Memory and 50gb storage. It runs a single domain, with a single Magento install - and nothing else. About 5 months ago we started having issues. Every so often (about once every 2 or 3 weeks) the VPS would crash - all processes stopped and the only way to restart the container is via Virtuozzo. Now, however its 2 or 3 times a week. My VPS hosts confirm I am breaching the 2gb memory limit, at which point all VPS processes are killed to stop it bringing the entire node down. I have not made any config changes to it at all - I was running New Relic on it for a short while, but have removed that in case it was contributing to the issues. I can see nothing in the logs which indicates an issue and we have no CRON jobs running at the time the crashes happen. The site generates steady, but not huge amounts of traffic (averaging usually less than 100 visits per day) Is there anything in particular I should have done to the Apache or PHP configs to help? Im not a massivley experienced Apache admin, but know more than enough to solve most problems... Failing that, any other ideas that might help? Can't afford for this site to be down this much.

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• Visual Studio 2005 won't install on Windows 7

  - by Peanut

  Hi, My question relates very closely to this question: http://superuser.com/questions/34190/visual-studio-2005-sp1-refuses-to-install-in-windows-7 However this question hasn't provided the answer I'm looking for. I'm trying to install Visual Studio 2005 onto a clean Windows 7 (64 bit) box. However I keep getting the following error when the 'Microsoft Visual Studio 2005' component finishes installing ... Error 1935.An error occurred during the installation of assembly 'policy.8.0.Microsoft.VC80.OpenMP,type="win32-policy",version="8.0.50727.42",publicKeyToken="1fc8b3b9a1e18e3b",processorArchitecture="x86",Please refer to Help and Support for more information. HRESULT: 0x80073712. On my first attempt to install VS 2005 I got a warning about compatibility issues. I stopped at this point, downloaded the necessary service packs and restarted the installation from the beginning. Every since then I just get the error message above. I keep rolling back the installation and trying again ... it's but always the same error. Any help would be very much appreciated. Thanks.

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• Windows Server 2008 network speed slow, Xen 3.4.3 HVM ISO

  - by Elliot.Bradshaw

  I've setup a VM running Windows Server 2008 on a host node running Xen 3.4.3-5 and the following kernel: 2.6.18-308.1.1.el5xen #1 SMP Wed Mar 7 05:38:01 EST 2012 i686 i686 i386 GNU/Linux The network speed on the VM is very slow--using the online speed tests I can only get it up to 8-9mbps. The line is 100mbps burstable and the host node has no problem achieving those speeds. If it setup a VM running CentOS, it too has no problems achieving those speeds. I've done some pretty exhaustive troubleshooting, but nothing has helped: New VM installations of Win2k8 do have the same network problem. Upgrading to most recent kernel-xen did not help (2.6.18-308.1.1.el5xen). Upgrading from xen 3.4.0 to xen 3.4.3-5 did not help. Disabling Windows firewall, etc did not help. Changing network card device config from auto negotiation to manually be 100mbps full duplex did not help. Changing the network receive buffer packet size did not help (tried all combos from 64k to 8k). At this point I'm pretty much out of ideas--any help would be appreciated!

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• where is memory gone (no, not buffers or cache)

  - by Marki

  can anyone tell me where the memory is gone: (no, this time neither buffers nor cache) # free total used free shared buffers cached Mem: 3928200 3868560 59640 0 2888 92924 -/+ buffers/cache: 3772748 155452 Swap: 4192956 226352 3966604 top, sorted by memory, descending: top - 13:42:06 up 1 day, 3:47, 2 users, load average: 0.08, 0.12, 0.36 Tasks: 228 total, 1 running, 227 sleeping, 0 stopped, 0 zombie Cpu0 : 2.0%us, 4.0%sy, 0.0%ni, 90.1%id, 0.0%wa, 0.0%hi, 4.0%si, 0.0%st Cpu1 : 0.0%us, 0.0%sy, 0.0%ni, 0.0%id,100.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 3928200k total, 3868020k used, 60180k free, 2896k buffers Swap: 4192956k total, 226048k used, 3966908k free, 82068k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3863 root 20 0 902m 199m 3296 S 7 5.2 99:08.77 ndsd 21906 root 20 0 138m 9076 2988 S 0 0.2 0:00.02 sfcbd 2332 root 20 0 126m 4660 1332 S 0 0.1 0:17.72 mono 4243 wwwrun 20 0 683m 4468 668 S 0 0.1 0:07.38 java 2994 root 20 0 202m 2288 1660 S 0 0.1 6:10.02 httpstkd 4338 root 20 0 184m 2240 1112 S 0 0.1 0:00.52 namcd 21898 root 20 0 32368 1832 1256 R 1 0.0 0:00.08 top In fact, some time ago oom kicked in and crashed the system (kernel panic), and I'm afraid we're again not far from that point.... UPDATE # cat /proc/meminfo MemTotal: 3928200 kB MemFree: 51336 kB Buffers: 2964 kB Cached: 72876 kB SwapCached: 29128 kB Active: 233440 kB Inactive: 88040 kB Active(anon): 188920 kB Inactive(anon): 56752 kB Active(file): 44520 kB Inactive(file): 31288 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 4192956 kB SwapFree: 3966824 kB Dirty: 32 kB Writeback: 0 kB AnonPages: 225112 kB Mapped: 11356 kB Shmem: 32 kB Slab: 1624080 kB SReclaimable: 13740 kB SUnreclaim: 1610340 kB KernelStack: 4176 kB PageTables: 10500 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 6157056 kB Committed_AS: 2397684 kB VmallocTotal: 34359738367 kB VmallocUsed: 441372 kB VmallocChunk: 34359246755 kB HardwareCorrupted: 0 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 10240 kB DirectMap2M: 4184064 kB slabtop Active / Total Objects (% used) : 9041019 / 9207548 (98.2%) Active / Total Slabs (% used) : 401132 / 401156 (100.0%) Active / Total Caches (% used) : 91 / 159 (57.2%) Active / Total Size (% used) : 1491537.88K / 1519791.56K (98.1%) Minimum / Average / Maximum Object : 0.02K / 0.17K / 4096.00K OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 4240470 4240319 99% 0.12K 141349 30 565396K pid 2245140 2219675 98% 0.25K 149676 15 598704K size-256 2238090 2210087 98% 0.12K 74603 30 298412K size-128 ...

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• Opening and Testing Ports on Modem > Router Connection

  - by JakeTheSnake

  Working off of my last question, I can access my server's FTP over the LAN but not over the internet. I'm using Filezilla on port 666. My router/modem configuration is as such (similar to other post): 1) Modem connects to WAN 2) WAN port on modem connects to LAN port on Router 3) Modem internal IP address is 192.168.0.254 4) Router internal IP address is 192.168.0.1 5) Modem has DHCP turned OFF 6) Router has DHCP turned ON 7) Router is running Tomato firmware and it's set as 'Router' (not 'Gateway') 8) The internet is working (just had to say that) I've set up port forwarding both on the modem and router - both route port 666 to the IP address of 192.168.0.3 (TCP); that is the IP address of the server which has FileZilla running. I don't know if that's hindering anything but I've also tried it with just the modem and just the router...same result. I've also tried setting the server to be DMZ (both on router and modem). Neither router nor modem have anything in their logs about denying inbound traffic on port 666 so my ability to troubleshoot stops there. I've tried contacting my ISP (Telus, running on mobility plan...it's a "Smart" Hub) but they weren't much help. They said they only block port 25 and 80 and maybe a few others, but not most ports. I test whether or not the port is open by going to canyouseeme.org - I don't know whether or not that would produce a 'connection refused' result just based on the fact that the FTP requires a login...I'm not well versed on this matter. FWIW, sometimes I get a 'connection refused' error on canyouseeme.org but mostly it's 'connection timed out'. I don't know what else to do at this point.

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• Change the Default Date setting in Word 2010

  - by Chris

  I am using Word 2010 and Windows 7. You know how when you start typing a date in Word it will automatically suggest what it thinks you want? Like if I start typing “6/29”, a little grey bubble will display “6/29/13 (Press ENTER to Insert)”. How do I get it so the bubble will display the year in a 4 digit format, such as "6/29/2013 (Press Enter to Insert)"? The below picture is how it looks when typing a date into Word. I have already gone to the Date & Time option under the Insert menu and the date format that I want is already selected. I think this is only for using quickparts anyway, so the date automatically updates when you open a document. The Region and Language settings under the Control Panel are correct as well. I thought at one point I found it somewhere under options, but I am sure I looked through everything many times and I can’t find it. I posted this exact question at the Microsoft website and someone replied: Go to the Windows Control Panel and click on Clock, Language and Region and then on Change the date, time, or number format and then modify the Short date format so that it is what you want to be used. So please don't suggest this again, because in my question I did say that I already tried this and it doesn't work, at least not for Word, in this situation. Thanks.

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• Using multiple computers effectively

  - by Benjamin Oakes

  I have some extra (old) Macs and PCs around the house and a MacBook that's sometimes overworked. I'm looking for tips on using multiple computers effectively. Basically, I'd like to add to the following list. Here's what I'm using so far: Teleport: lets you use a single mouse and keyboard to control several Macs, like Synergy Built-in file sharing: lets me run programs on another Mac, but only maintain one copy of the data Bazaar: distributed version control Mail.app, Thunderbird, etc.: IMAP for my mail accounts TuneConnect: control iTunes on another Mac with a nice interface, using the library on my MacBook (if I choose it by pressing option at startup) over file sharing OmniFocus: syncs across computers pretty seamlessly Web browsing across computers VNC/Remote Desktop Running X-windows programs using ssh -Y hostname for headless operation (but they die when I sleep the connecting computer -- something like GNU screen would be ideal) Plain-old ssh with GNU screen Really, a better idea of what I do might be necessary. Generally though, I'd like to distribute tasks across more than one computer when possible, but not have much overhead in doing so. The perfect solution? An Xgrid-like program that pushes processing across multiple computers automatically and seamlessly (although that seems unlikely). Here's what I have, in case it makes a difference: MacBook (Dual 2.16 GHz, OS X 10.6.3) eMac (1.25 GHz, OS X 10.4.11, soon to be 10.5) Dell Dimension (800 MHz, some version of Ubuntu) -- no dedicated monitor PowerMac G3 (400 MHz, OS X 10.4.11) -- no dedicated monitor iMac G3 DV (400 MHz, OS X 10.4.11) -- currently in the kitchen for recipes, email, web browsing, music, movies (DVDs), etc. (Total, they cost me around $650, mostly for the MacBook. Freecycle is wonderful, just in case you haven't heard of it.) I'm really only using the MacBook and eMac at this point, but I'd like to push more onto it and possibly the PowerMac and Dell.

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