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  • I go to www.facebook.com, but a completely different site appears.

    - by Rosarch
    I am going to www.facebook.com, but the site that appears is totally different. This occurs on Chrome 6+, IE9, and FF 3+. What could be happening? Is this a security risk? Facebook was working just fine, then all of a sudden this happened. Update: The same problem occurs on my netbook. Update 2: When I go to http://69.63.189.11/, it works fine. So... DNS problem? How do I fix? Update 3: Checked the hosts file: # Copyright (c) 1993-2009 Microsoft Corp. # # This is a sample HOSTS file used by Microsoft TCP/IP for Windows. # # This file contains the mappings of IP addresses to host names. Each # entry should be kept on an individual line. The IP address should # be placed in the first column followed by the corresponding host name. # The IP address and the host name should be separated by at least one # space. # # Additionally, comments (such as these) may be inserted on individual # lines or following the machine name denoted by a '#' symbol. # # For example: # # 102.54.94.97 rhino.acme.com # source server # 38.25.63.10 x.acme.com # x client host # localhost name resolution is handled within DNS itself. # 127.0.0.1 localhost # ::1 localhost Looks like it hasn't been altered.

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  • Is there a better way to do bonded vlan tagged interfaces with XEN

    - by AJ01
    We have a number of XEN servers all running CentOS or RHEL. The VM's that they run are all required to be on their own VLAN for no other reason than the customer expects them to be. Long story short however, I can't change this right now. We are also required to have bonding enabled on the interfaces. So to accommodat this we enslave eth1 and eth2 to bond0. We then create a seperate interface called bond0.VLANID where VLANID corresponds to the correct vlan; eg ifcfg-bond0.204 DEVICE=bond0.204 BOOTPROTO=static ONBOOT=yes VLAN=yes BRIDGE=xenvlan204 Bridge to XEN As you will see, we eventually have to bridge this out to XEN, and we do this by adding another interface called xenvlan204 (in this instance) which contains; ifcfg-xenvlan204 DEVICE=xenvlan204 BOOTPROTO=none ONBOOT=yes TYPE=bridge XEN Vm Config Finally in our XEN config for each VM, we add vif = [ "bridge=xenvlan204" ] This then allows the vm host to access that particular vlan The Problem We've noticed a few problems with this setup. One being that we currently create the interfaces manually. Which means if we add more vlan enabled interfaces and bridges we usually have to restart xend which is something I'm not so hot about. Also lower level staff have their heads melted by the number of interfaces and the risk of a mistake occurring is high. Secondly, it can take sometime for a host to come up if it has a number of vlan taged interfaces. Thirdly, its just not scaling well on the management aspects The Question Is there a better more flexible way to do this (in particular with Xen that ships with centos 5.3, 5.4 and 5.5 as we have to support all three) that leverages either scripting or other solutions to allow an arbitrary amount of interfaces to be created when a vm is instanced. Your advise and expertise is more that welcomed.

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  • How far should we take the N+N redundancy craziness ?

    - by Brann
    The industry standard when it comes from redundancy is quite high, to say the least. To illustrate my point, here is my current setup (I'm running a financial service). Each server has a RAID array in case something goes wrong on one hard drive .... and in case something goes wrong on the server, it's mirrored by another spare identical server ... and both server cannot go down at the same time, because I've got redundant power, and redundant network connectivity, etc ... and my hosting center itself has dual electricity connections to two different energy providers, and redundant network connectivity, and redundant toilets in case the two security guards (sorry, four) needs to use it at the same time ... and in case something goes wrong anyway (a nuclear nuke? can't think of anything else), I've got another identical hosting facility in another country with the exact same setup. Cost of reputational damage if down = very high Probability of a hardware failure with my setup : <<1% Probability of a hardware failure with a less paranoiac setup : <<1% ASWELL Probability of a software failure in our application code : 1% (if your software is never down because of bugs, then I suggest you doublecheck your reporting/monitoring system is not down. Even SQLServer - which is arguably developed and tested by clever people with a strong methodology - is sometimes down) In other words, I feel like I could host a cheap laptop in my mother's flat, and the human/software problems would still be my higher risk. Of course, there are other things to take into consideration such as : scalability data security the clients expectations that you meet the industry standard But still, hosting two servers in two different data centers (without extra spare servers, nor doubled network equipment apart from the one provided by my hosting facility) would provide me with the scalability and the physical security I need. I feel like we're reaching a point where redundancy is just a communcation tool. Honestly, what's the difference between a 99.999% uptime and a 99.9999% uptime when you know you'll be down 1% of the time because of software bugs ? How far do you push your redundancy crazyness ?

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  • Setting up port forwarding for web server

    - by Javier Badia
    This could belong on Super User, but I thought this place was more appropiate. I want to run Apache in my computer and want to make it available to the outside world to test a couple things. Apparently, I have to go into my router's (a TP-LINK TD 8910G) settings and forward port 80 to my PC's IP. So far so good. Thing is, since the router uses a web based interface and it's kind of stupid, it told me that since I was using port 80 for this, I should access its settings through port 8080. Maybe it can't detect requests coming from the LAN, I don't know. Point is, now neither port can't access the configuration, and I can't access Internet. Specifically, trying to access anything (including 192.168.1.1, the router's settings) through port 80 turns up a blank page (maybe if I had the server running in my computer I'd get something, but I don't want to risk trying, I had to reset the router and restore the settings), and port 8080 gives a "Can't establish connection" error in Firefox (and similar ones in other browsers). Is there a way to configure the router to not redirect requests coming from inside the network? I'm a beginner with this stuff, so please try to explain in a simple way. If this is more appropiate in Super User, I'm sorry.

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  • Connecting to same public IP from different locations yields different results

    - by DHall
    Since yesterday I've been unable to access one of my favorite time-wasting sites, boston.com. It starts to load but then it gets redirected to pagesinxt or something like that. After some investigation, I've narrowed it down to an issue with cache.boston.com, but only from my work location. I found the IP (216.38.160.107) , but even that doesn't work correctly from here at work. When I do a telnet 216.38.160.107 80 GET http://cache.boston.com/universal/css/hp_bgcom.css from another location, I get a nice long CSS, as expected. From here, I get an error (trimmed for size): HTTP/1.1 400 Bad Request Your request could not be processed. Request could not be handled This could be caused by a misconfiguration, or possibly a malformed request. For assistance, contact your network support team. Is there any way I can troubleshoot this further on my end? Tracert doesn't tell me anything too useful: Tracing route to vwrpx1.ttn.xpc-mii.net [216.38.160.107] over a maximum of 30 hops: 1 * * * Request timed out. Since it's not really work-related, I don't really want to bring it up to our network team unless I know what's going on, or if there's some risk to the network (ex. malware or something)

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  • Making it Easier for Older Users to Login to Multiple Accounts

    - by Mike Hagstrom
    I currently do consulting for a small business that has multiple applications that they need to login too. I'm trying to get them to start using Basecamp and Zendesk to make all of our lives easier when it comes to collaboration on big projects and quick helpdesk ticket items. However, I have recently been informed that it is difficult for them to remember all of these websites etc... to login too. However the login information is the same. Right now they have to login to: Windows Login Gmail I want them additionally to login to Basecamp Zendesk This is just a generation or two gap between myself and them, so I'm wondering what others do to solve these problems. Is there some way we could configure USB thumbdrives that somehow have Lastpass or something on that when plugged into the computer automatically log them into their Windows account, then when they were to say visit the Basecamp account would automatically log them into that? I think the security risk (of a list thumbdrive) is well worth the ability to use these extra applications. Unless anyone else has any other ways for making it easier for users to login to multiple sites.

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  • How can I create a VLAN on my extreme switch for a separate subnet/domain?

    - by drpcken
    I'm putting together a small active directory implementation for a buddy of mine. I currently have 2 servers (one is the primary domain controller) and a couple clients. I need to test and run updates on every machine on this domain, but I would have plug them into my current LIVE domain to get it internet access. From what I've read having two separate domains on a single subnet is a bad idea (even though it is temporary) so I don't want to risk messing anything up on my production domain. I'm pretty sure I can create a separate VLAN on my extreme 48 port switch and plug this smaller domain into it on a different subnet, but I don't know the commands. Both subnets would need internet access of course (one of the things I can't wrap my head around is routing internet traffic between subnets (gateway is on production subnet). Switch is a Summit x450e-48p My production domain is on subnet 192.168.200.0. My new domain I want to put online would go into subnet 192.168.10.0. A shove in the right direction would be greatly appreciated. Thank you!

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  • Need a place to store a few bytes of meta information on storage media

    - by Jason C
    I'm working on an embedded project. I need a place to store some filesystem-independent meta information on a storage device. The device has an MSDOS partition table. The device also may have unallocated space (depending on its size) but it will be TRIMmed (and also may be blown away by new partitions in the future). I need a location on the device that is not unallocated and that has a low risk of being touched (outside of completely erasing the device). The device is only guaranteed to have an MBR at the point the meta data needs to first be written; meaning there are no EBRs/VBRs present that I could use. There are 446 bytes at the very start of the device available for MBR bootstrap code. Currently my only idea is to store data at the end of this block. However, the device is bootable and I have no way of knowing if I'd be blowing away bootstrap code or not. The sector size is 512 bytes and the MBR is the first sector, I'm pretty sure (correct me if I'm wrong) that that means the second sector is available for use by partition data, so I can't use that either. Does anybody have any ideas? I need 4 bytes of space.

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  • What is the "in-the-wire" size of a ethernet frame? 1518 or 1542?

    - by chrisapotek
    According to the table here, it says that MTU = 1500 bytes and that the payload part is 1500 - 42 bytes or 1458 bytes (<- this is actually wrong!). Now on top of that you have to add IPv4 and UDP headers, which are 28 bytes (20 IP + 8 UDP). That leaves my maximum possible application message to as 1430 bytes! But by looking for this number in the Internet I see 1472 instead. Am I doing this calculation wrong here? All I want to find out is the maximum application message I can send over the wire without the risk of fragmentation. It is definitely not 1500 because that includes the frame headers. Can someone help? The confusion is the the PAYLOAD can actually be as large as 1500 bytes and that's the MTU. So now what is the size in-the-wire for a payload of 1500? From that table it can be as big as 1542 bytes. So the maximum app messages I can send is 1472 (1500 - 20 (ip) - 8 (udp)) for a maximum in the wire size of 1542. It amazes me how things can get so complicated when they are actually simple. And I have not clue how someone came up with the number 1518 if the table says 1542.

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  • RAID 10 or RAID 5 for multiple VMs - what is the best choice?

    - by Lars Fastrup
    I have just ordered a new rig for my business. We do a lot of software development for Microsoft SharePoint and need the rig to run several virtual machines for development and test purposes. We will be using the free VMware ESXi for virtualization. For a start, we plan to build and start the following VMs - all with Windows Server 2008 R2 x64: Active Directory server MS SQL Server 2008 R2 Automated Build Server SharePoint 2010 Server for hosting our public Web site and our internal Intranet for a few people. The load on this server is going to be quite insignificant. 2xSharePoint 2007 development server 2xSharePoint 2010 development server Beyond that we will need to build several SharePoint farms for testing purposes. These VMs will only be started when needed. The specs of the new rig is: Dell R610 rack server 2xIntel XEON E5620 48GB RAM 6x146GB SAS drives Dell H700 RAID controller We believe the new server is going to make our VMs perform a lot better than our existing setup (2xIntel XEON, 16GB RAM, 2x500 GB SATA in RAID 1). But we are not sure about the RAID level for the new rig. Should we go for having the the 6x146GB SAS drives in a RAID 10 configuration or a RAID 5 configuration? RAID 10 seems to offer better write performance and lower risk of a RAID failure. But it comes at a cost of less drive space. Do we need RAID 10 or would RAID 5 also be a good choice for us?

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  • Dell PowerEdge T710, add a new hard disk, how to?

    - by user1340802
    I need to add a new hard disk to a PowerEdge T710 running on Vmware EXSI 4. this hard disk is a 'normal' desktop hard disk 1TB (that is it is not coming from Dell, I also have no rack for it to plug it inside any of the front bay) I would like to add this disk for a virtual machine needing space, the most easily as possible. I have find that there is an avaiable sata cable with its electric power, so may I just add the disk plugging these and using the empty 5"1/4 slot available under the CD drive (with a 5"1/4 - 3"1/2 bay adaptater) ? (even if this way it seems that i bypass the raid controller that own the front bay with racks)) that way i think could be easier than adding the disk to the already defined Raid (btw i am also not sure on how to do these but i would not risk to mess the already working things) what are the other operations that i would have to do to ? (sorry I am a real beginner on Vmware EXSI and PowerEdge management :/ i have seen that there is some management from Bios (CTRL+R as start up) so that the disk will be seen or initialize it. I am really not sure of the steps needed...) thank you, best.

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  • SMTP Client implementation [on hold]

    - by orif
    I'm implementing SMTP client. What should the client do once it already sent the "." at the end of the mail, but didn't receive "250 Ok"? This is how the conversation between the client and server look like: Server Response: 220 www.sample.com ESMTP Postfix Client Sending : HELO domain.com Server Response: 250 Hello domain.com Client Sending : MAIL FROM: <[email protected]> Server Response: 250 Ok Client Sending : RCPT TO: <[email protected]> Server Response: 250 Ok Client Sending : DATA Server Response: 354 End data with <CR><LF>.<CR><LF> Client Sending : Subject: Example Message Client Sending : From: [email protected] Client Sending : To: [email protected] Client Sending : Client Sending : TEST MAIL Client Sending : Client Sending : . Server Response: 250 Ok: queued as 23411 Client Sending : QUIT I'm not sure what should I do if the client sends "." and doesn't receive the 250 Ok - because of possible network error. Was the "." sent or not? Should the client resend the mail - and - maybe - duplicate the item, or not - and risk in losing an important mail item? Thank you.

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  • Hide/Replace Nginx Location Header?

    - by Steven Ou
    I am trying to pass a PCI compliance test, and I'm getting a single "high risk vulnerability". The problem is described as: Information on the machine which a web server is located is sometimes included in the header of a web page. Under certain circumstances that information may include local information from behind a firewall or proxy server such as the local IP address. It looks like Nginx is responding with: Service: https Received: HTTP/1.1 302 Found Cache-Control: no-cache Content-Type: text/html; charset=utf-8 Location: http://ip-10-194-73-254/ Server: nginx/1.0.4 + Phusion Passenger 3.0.7 (mod_rails/mod_rack) Status: 302 X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 3.0.7 X-Runtime: 0 Content-Length: 90 Connection: Close <html><body>You are being <a href="http://ip-10-194-73-254/">redirect ed</a>.</body></html> I'm no expert, so please correct me if I'm wrong: but from what I gathered, I think the problem is that the Location header is returning http://ip-10-194-73-254/, which is a private address, when it should be returning our domain name (which is ravn.com). So, I'm guessing I need to either hide or replace the Location header somehow? I'm a programmer and not a server admin so I have no idea what to do... Any help would be greatly appreciated! Also, might I add that we're running more than 1 server, so the configuration would need to be transferable to any server with any private address.

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  • How can I create a VLAN on my extreme switch for a seperate subnet/domain?

    - by drpcken
    I'm putting together a small active directory implementation for a buddy of mine. I currently have 2 servers (one is the primary domain controller) and a couple clients. I need to test and run updates on every machine on this domain, but I would have plug them into my current LIVE domain to get it internet access. From what I've read having two separate domains on a single subnet is a bad idea (even though it is temporary) so I don't want to risk messing anything up on my production domain. I'm pretty sure I can create a separate VLAN on my extreme 48 port switch and plug this smaller domain into it on a different subnet, but I don't know the commands. Both subnets would need internet access of course (one of the things I can't wrap my head around is routing internet traffic between subnets (gateway is on production subnet). My production domain is on subnet 192.168.200.0. My new domain I want to put online would go into subnet 192.168.10.0. A shove in the right direction would be greatly appreciated. Thank you!

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  • Ubuntu 12.04 partioning an external drive without lossing data

    - by Menelaos Perdikeas
    I have an Ubuntu 12.04 with an external 1.5T disk (just for data). It is /dev/sdc1 seen below: $ df -T Filesystem Type 1K-blocks Used Available Use% Mounted on /dev/sda1 ext4 1451144932 27722584 1350794536 3% / udev devtmpfs 6199460 4 6199456 1% /dev tmpfs tmpfs 2482692 988 2481704 1% /run none tmpfs 5120 0 5120 0% /run/lock none tmpfs 6206724 284 6206440 1% /run/shm /dev/sdc1 fuseblk 1465135100 172507664 1292627436 12% /media/Elements The thing is I would like to implement this rsync-based backup strategy and I want to use my /dev/sdc1 external drive for that. Since the guide mentioned above recommends placing the backup directory in a separate partition I want to repartition the /dev/sdc1 external hard disk but retain existing data in a separate partition. E.g. split /dev/sdc1 into two partitions: (i) one to be used exclusively for the rsync-based backup and (ii) the other for the existing miscellaneous data. How should I go about partitioning with minimal risk to my existing data and what kind of filesystem do you recommend? I would prefer a console-based guide but unfortunately all the material I found on the web is oriented towards partitioning the main (bootable) disk and not an external fuseblk filesystem used only for passive data.

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  • Are there any tools to migrate your files, applications, and settings to a new Windows computer?

    - by calbar
    I've decided to upgrade my laptop on a regular basis and one of my main concerns is recreating my entire Windows 7 environment every time I do this. I'm talking toolbar positions, login settings, start menu items, applications and all their customizations... everything but my drivers. It literally takes weeks to fully recreate my working environment, not to mention the risk of user error or just simply forgetting "how I liked it." I'm assuming I won't find something as painless as Apple's Migration Assistant for Windows, but maybe there's something out there that can at least package up your apps and their settings? Bonus points if you can point it to your personal files, too - whatever's the quickest way to get from one machine to the next. I intend to install Windows fresh to remove bloatware on every machine that I buy, then selectively install the drivers I need. Something that accommodates loading my old apps into this newly prepared environment would be ideal. One random point of concern is in regard to application settings that refer to old hardware. I'm not sure if there's anything that can be done about this. If you have any thoughts, feel free to share. Thanks for your help!

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  • Loading the preview function of AUCTeX 11.86 on macports Emacs-app 23.2.1 port.

    - by Sarah
    I've installed Emacs-app 23.2.1 via MacPorts and I'm trying to install AUCTeX 11.86 so that it will work on this installation. I've run the following configure line for AUCTeX and that seems to work. ./configure --with-emacs=/Applications/MacPorts/Emacs.app/Contents/MacOS/Emacs --with-lispdir=/Applications/MacPorts/Emacs.app/Contents/Resources/site-lisp/ --with-texmf-dir=/usr/local/texlive/2010basic/texmf-local/ make and make install seem to work, and I've added the following line to my init.el (require 'tex-site) as per the installation instructions. However, when I open a TeX file, the Preview menu does not show up (although the LaTeX menu does.) The following are some of my tests: M-x load-library RET preview-latex RET doesn't seem to do anything. M-x load-library RET preview RET brings up the Preview menu. Is it safe to somehow add the load-library preview to my init.el? Or do I risk mucking up something? I'm new to Emacs and primarily trying to learn it because of the AUCTeX preview features, but I don't feel very safe in this environment yet.

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  • Using Truecrypt to secure mySQL database, any pitfalls?

    - by Saul
    The objective is to secure my database data from server theft, i.e. the server is at a business office location with normal premises lock and burglar alarm, but because the data is personal healthcare data I want to ensure that if the server was stolen the data would be unavailable as encrypted. I'm exploring installing mySQL on a mounted Truecrypt encrypted volume. It all works fine, and when I power off, or just cruelly pull the plug the encrypted drive disappears. This seems a load easier than encrypting data to the database, and I understand that if there is a security hole in the web app , or a user gets physical access to a plugged in server the data is compromised, but as a sanity check , is there any good reason not to do this? @James I'm thinking in a theft scenario, its not going to be powered down nicely and so is likely to crash any DB transactions running. But then if someone steals the server I'm going to need to rely on my off site backup anyway. @tomjedrz, its kind of all sensitive, individual personal and address details linked to medical referrals/records. Would be as bad in our field as losing credit card data, but means that almost everything in the database would need encryption... so figured better to run the whole DB in an encrypted partition. If encrypt data in the tables there's got to be a key somewhere on the server I'm presuming, which seems more of a risk if the box walks. At the moment the app is configured to drop a dump of data (weekly full and then deltas only hourly using rdiff) into a directory also on the Truecrypt disk. I have an off site box running WS_FTP Pro scheduled to connect by FTPs and synch down the backup, again into a Truecrypt mounted partition.

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  • Apps won't start after vanilla reboot

    - by Daniel R Hicks
    I had Adobe and Norton nagging me to reboot, so I did that -- clicked Reboot from the Start button. Everything seemed pretty normal as it shut down and came back up, but once up a bunch of apps won't start. The first one I noticed was Firefox. It would flash the disk light normally, but never appear on the screen. Then I tried to bring up an OpenOffice Calc window and same thing. I tried to bring up MS Word, and the splash screen appeared, but never the main screen, and the splash screen just sat there, with a swirly over it. But I tried Solitaire, Notepad++, Paint, and several others, and they popped up just fine. And I'm typing this from IE 8, which, if anything, came up faster than usual. When I try to open up "Network and Sharing Center" the window appears, but nothing appears in it, and eventually it's tagged "not responding". When I kill that window I get (after a delay) "Windows Explorer is not responding", and when I say "OK" the screen resets. I tried rebooting again, and no joy -- same as before. Have done nothing particularly strange on this box, and it's not generally at significant risk for malware. I haven't installed anything new other than the afore-mentioned updates. One other thing: Several minutes after rebooting I get the message "Error: Unable to start Bluetooth Stack Service." The Bluetooth radio is turned on, and I rarely have anything Bluetooth attached, and I don't recall that I've ever seen this message before. Added: Looking at Event Viewer, I'm getting a lot of "The description for Event ID 1 from source xxx cannot be found." Is there any significance to this? Added: I'm looking at restoring from backup, but the procedure is, at best, unclear. Is it sufficient to restore from "Backup and Restore Center", or must I restore from the restore DVD first?

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  • Watchguard Firebox "split" fibre optic line into 2 interfaces

    - by fRAiLtY-
    We have a requirement on our Watchguard Firebox XTM505 to be able to split our incoming external interface, in this case a fibre optic dedicated leased line, 100/100. We use the line in our office of approx 30 machines however we also re-sell to an external company who utilise it to provide wireless internet solutions to the public. The current infrastructure is as follows: Data in (Leased Line) - Juniper SRX210 managed by ISP - 1 cable out into unmanaged Netgear switch - 1 cable into our firewall and office network, 1 cable to our external providers core router managed by them. We have been informed that having the unmanaged switch in the position it is poses a security risk and that a good option would be to get our Watchguard Firewall to perform the split, by separating our office onto a trusted interface, and by "passing through" the external line to their managed router. It is alleged that the Watchguard is capable of doing this and also rate limiting the interfaces, i.e. 20mbps for the trusted interface and 80mbps for the "pass-through", however Watchguard technical support don't seem to be able to understand what we're trying to achieve. Can anyone provide any advice on whether this is possible on a Watchguard device and how or perhaps if there's a better way of achieving this, perhaps with a managed switch instead of unmanaged? Cheers

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  • Giving the root user priority to maintain Debian (while server collapsing under heavy load)

    - by Saix
    Is there any way to setup Debian to prioritize any or specific root's activity before every other? For instance, several times per year something gets wrong (usually man's fault by overstressing apache/mysql) and system gets unresponsive under heavy load like 200 (8-core cpu). I know there are limits for php scripts to run then kill, but that's not the way because this limit has to be at least 45 minutes long. The problem is, until I'm able to login via SSH and let apache/mysql restart under this server stress, it nearly hits these 45 minutes anyway. Also hardware restart causing usually to run fsck at boot time on all harddrives since it's usually pretty long the box haven't been restarted. I was told it's really not good idea disabling fsck but then again, it takes more then hour to complete. What is the fastest way to restart apache/mysql? Is there any way to give ssh users or root user higher priority so the logging in and completing these restarts (rather stops though) commands wouldn't take so long? One comes to my mind.. use NICE for apache/mysql but no way. I can't risk limiting those two vital apps 24/7 or could I? I'm a little bit scared if any other system process wouldn't slow the pages down too much. Any backup process, swap (if any) etc. There is pretty heavy PHP framework with 20k visits a day, so it needs every hw/sw resource available. I can't throttle it the whole time, just in certain points when system gets unresponsive, so I could maintain it.

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  • Relinking a deleted file

    - by mbac32768
    Sometimes people delete files they shouldn't, a long-running process still has the file open, and recovering the data by catting /proc/<pid>/fd/N just isn't awesome enough. Awesome enough would be if you could "undo" the delete by running some magic option to ln that would let you re-link to the inode number (recovered through lsof). I can't find any Linux tools to do this, least with cursory Googling. What do you got, serverfault? EDIT1: The reason catting the file from /proc/<pid>/fd/N isn't awesome enough is because the process which still has the file open is still writing to it. A delete removes the reference to the inode from the filesystem namespace. What I want is a way of re-creating the reference. EDIT2: 'debugfs ln' works but the risk is too high since it frobs raw filesystem data. The recovered file is also crazy inconsistent. The link count is zero and I can't add links to it. I'm worse off this way since I can just use /proc/<pid>/fd/N to access the data without corrupting my fs.

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  • How to upgrade iPhone 3G to iOS 5 now that iOS 6 is out? [closed]

    - by mmmshuddup
    My friend has an old iPhone 3G and I wanted to upgrade it to iOS 5 because I had read that the performance is actually better with iOS 5 on that phone in spite of the difference in processor power. The problem is that now that iOS 6 is out, iTunes only gives me the option to upgrade to that. I am a little more leery of iOS 6 knowing that it was launched mostly for the iPhone 5 and since that phone has a way faster processor, I would assume that performance would be an issue on the iPhone 3G. How can I, if possible, upgrade just to iOS 5? Note: I would like to avoid having to jailbreak the phone by all means possible. (It's not mine and I don't want to take the risk with a phone that doesn't belong to me.) EDIT: If anyone knows of a good site to get help on questions like this let me know. Apparently you're allowed to ask questions about iPhones here, just not this. Which is completely utter asinine, but oh well. Anyone with helpful ideas, post in the comments please.

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  • Why is /dev/urandom only readable by root since Ubuntu 12.04 and how can I "fix" it?

    - by Joe Hopfgartner
    I used to work with Ubuntu 10.04 templates on a lot of servers. Since changing to 12.04 I have problems that I've now isolated. The /dev/urandom device is only accessible to root. This caused SSL engines, at least in PHP, for example file_get_contents(https://... to fail. It also broke redmine. After a chmod 644 it works fine, but that doesnt stay upon reboot. So my question. why is this? I see no security risk because... i mean.. wanna steal some random data? How can I "fix" it? The servers are isolated and used by only one application, thats why I use openvz. I think about something like a runlevel script or so... but how do I do it efficiently? Maby with dpkg or apt? The same goes vor /dev/shm. in this case i totally understand why its not accessible, but I assume I can "fix" it the same way to fix /dev/urandom

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  • SQL Server: Network pauses after installing cheap SATA card: Is there a solution?

    - by samsmith
    At the risk of being assigned to the "bad DBA" club... I did something desperate, and may have to undo it. Problem: After installing a low cost eSATA board, my SQL Server is intermittently unresponsive (seemingly when there is a lot of IO to the eSATA drive). Questions: 1) Is there a solution to the intermittent unresponsiveness that allows me to keep the eSATA in place? 2) Whether or not (1==true): What is a decent, low cost way to add 1-3 TB storage to SQL for non-critical SQL DBs? Detail: Our SAN is full, and expanding it is costly and will take a month. I have a pressing need to add 1-3 TB for some development DBs (e.g. not mission critical; data loss is OK). As a bandaid, I threw a $20 eSATA PCI board in the Dell 1950 server, and attached an external 2TB eSATA drive. This seemed to work fine, but I notice that our production SQL DBs, and even remote desktop, now experience network "pauses" that they never did before (with both SQL client apps and remote desktop throwing "networking problem" errors). This SQL Server has lots of memory, and runs an instance of SQL 2005 (where all line of business apps reside) and an instance SQL 2008 (for development db's). SQL Server RAM has been appropriately configured, and this setup has run great for years. The server is: Dell 1950 Win2003 x64 14GB RAM PERC controller, 2 mirrored hd's internal Dell SAN over gbit ethernet, dual homed 2 PCIx slots (1 used by NIC for SAN, 1 now in use for eSATA board) Thank you for suggestions!

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