Search Results

Search found 16914 results on 677 pages for 'single threaded'.

Page 511/677 | < Previous Page | 507 508 509 510 511 512 513 514 515 516 517 518  | Next Page >

• Virtual box host-only adapter configuration

  - by Xoundboy

  I have VirtualBox 4 running on Win 7 with a Centos 6 guest VM set up for hosting my dev server. When I'm connected to my home network the guest can be accessed via a static IP address that I configured (192.168.56.2), but not when I'm in the office. I'm guessing that the DHCP server in the office doesn't have a gateway configured for the 192.168.56.x IP range. I read something about the VB host-only adapter that should allow me to set this guest VM up in such a way that I don't need to be on any network to be able to access the guest from the host using a static IP. I've not been able to find out exactly how to configure this though. Can anyone give me an example configuration, thanks. UPDATE: Thanks for your responses. I've now set up a single virtual network adapter in VirtualBox and set it to host-only: C:\Users\Ben>vboxmanage list hostonlyifs Name: VirtualBox Host-Only Ethernet Adapter GUID: d419ef62-3c46-4525-ad2d-be506c90459a Dhcp: Disabled IPAddress: 192.168.56.2 NetworkMask: 255.255.255.0 IPV6Address: fe80:0000:0000:0000:78e3:b200:5af3:2a57 IPV6NetworkMaskPrefixLength: 64 HardwareAddress: 08:00:27:00:94:e8 MediumType: Ethernet Status: Up VBoxNetworkName: HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter On the guest I've set up eth0 to use the same IP address as the host-only adapter (192.168.56.2) but when I try to log in using Putty I still get "Network Error : connection refused". VirtualBox DHCP servier is enabled but I can't ping the gateway (192.168.56.1) from either host nor guest. There's no firewall running on either OS. What next?

  Read the article

• Why is my global security group being filtered out of my logon token?

  - by Jay Michaud

  While investigating the effects of filtered tokens on my file permissions, I noticed that one of my global security groups is being filtered in addition to the regular system-defined filtered groups. My Active Directory environment is a single-domain forest on the Windows Server 2003 functional level. I'll call the domain "mydomain.example.com". I am logged onto a Windows Server 2008 Enterprise Edition machine (not a domain controller) as a member of the "MYDOMAIN\Domain Admins" group and the "MYDOMAIN\MySecurityGroup" global security group (among others). When I run "whoami /groups" from an elevated command prompt, I see the full list of groups to which my account belongs as expected. When I run "whoami /groups" from a regular, non-elevated command prompt, I see the same list of groups, but the following groups are described as "Group used for deny only". BUILTIN\Administrators MYDOMAIN\Schema Admins MYDOMAIN\Offer Remote Assistance Helpers MYDOMAIN\MySecurityGroup Numbers 1 through 3 above are expected based on Microsoft documentation; number 4 is not. The "MYDOMAIN\MySecurityGroup" global security group is a group that I created. It contains three non-built-in global security groups, and these security groups contain only non-built-in user accounts. (That is, I created all of the accounts and groups that are members of the "MYDOMAIN\MySecurityGroup" global security group.) There are other, similar groups of which my account is a member that are not being filtered out of my logon token, and this group is not granted any specific user rights in the security settings of this computer or in Group Policy. What would cause this one group to be filtered out of my logon token?

  Read the article

• 3 Monitor PCI-e Graphics card on Linux (without tremendous pain)?

  - by N Rahl

  As we are all painfully aware, the only way to get multiple monitors AND compositing (Compiz) on Linux is to use a single graphics card that can drive both (or in my case all three) screens. I bought a Radeon 5750 specifically because it claims to able to drive 3 monitors. I can plug in 3 monitors (2 DVI, 1 HDMI) and the Catalyst Control Center shows all 3, but only 2 can be enabled at a time. The exact message is: The current settings cannot be applied. Possible issues may include: - Display(s) cannot be enabled. - Setting(s) cannot be applied due to insufficient video memory. So I'm going to assume that either the 5750 doesn't support 3 monitors, OR, more likely, ATI couldn't be bothered to add that support to their Linux drivers. So this is a multipart question: First, can anyone suggest a PCI Express Graphics card that can run 3 screens on linux without tremendous pain? I'm looking for something where you install the driver and all three screens "just work". Does such a card exist? Second, if you have a 5750, have you been able to get it to do 3 monitors? I'm running Ubuntu 10.04 at the moment.

  Read the article

• Gigabit network limited to 25MB/s by CPU. How to make it faster?

  - by netvope

  I have a Acer Aspire R1600-U910H with a nForce gigabit network adapter. The maximum TCP throughput of it is about 25MB/s, and apparently it is limited by the single core Intel Atom 230; when the maximum throughput is reached, the CPU usage is about 50%-60%, which corresponds to full utilization considering this is a Hyper-threading enabled CPU. The same problem occurs on both Windows XP and on Ubuntu 8.04. On Windows, I have installed the latest nForce chipset driver, disabled power saving features, and enabled checksum offload. On Linux, the default driver has checksum offload enabled. There is no Linux driver available on Nvidia's website. ethtool -k eth0 shows that checksum offload is enabled: Offload parameters for eth0: rx-checksumming: on tx-checksumming: on scatter-gather: on tcp segmentation offload: on udp fragmentation offload: off generic segmentation offload: off The following is the output of powertop when the network is idle: Wakeups-from-idle per second : 61.9 interval: 10.0s no ACPI power usage estimate available Top causes for wakeups: 90.9% (101.3) <interrupt> : eth0 4.5% ( 5.0) iftop : schedule_timeout (process_timeout) 1.8% ( 2.0) <kernel core> : clocksource_register (clocksource_watchdog) 0.9% ( 1.0) dhcdbd : schedule_timeout (process_timeout) 0.5% ( 0.6) <kernel core> : neigh_table_init_no_netlink (neigh_periodic_timer) And when the maximum throughput of about 25MB/s is reached: Wakeups-from-idle per second : 11175.5 interval: 10.0s no ACPI power usage estimate available Top causes for wakeups: 99.9% (22097.4) <interrupt> : eth0 0.0% ( 5.0) iftop : schedule_timeout (process_timeout) 0.0% ( 2.0) <kernel core> : clocksource_register (clocksource_watchdog) 0.0% ( 1.0) dhcdbd : schedule_timeout (process_timeout) 0.0% ( 0.6) <kernel core> : neigh_table_init_no_netlink (neigh_periodic_timer) Notice the 20000 interrupts per second. Could this be the cause for the high CPU usage and low throughput? If so, how can I improve the situation? The other computers in the network can usually transfer at 50+MB/s without problems. And a minor question: How can I find out what is the driver in use for eth0?

  Read the article

• Why does my simple Raid 1 backup storage perform really slow sometimes?

  - by randomguy

  I bought 2x Samsung F3 EcoGreen 2TB hard disks to make a backup storage. I put them in Raid 1 (mirror) mode. Made a single partition and formatted it to NTFS, running Windows 7. For some reason, accessing the drive's contents (simply by navigating folders) is sometimes really slow. Like opening D:/photos/ can sometimes take several seconds before it starts showing any of the folder's contents. Same applies for other folders. What could be causing this and what could I do to improve the performance? I remember that there was an option somewhere inside Windows to choose fast access but less reliable persistence operations (read/write). It was a tick inside some dialog. At the time, it felt like a good idea to take the tick away from the option and get more reliable persistence but slower access, but now I'm regretting. I'm unable to find this dialog.. I've looked hard. I don't know, if it would make any difference. Oh, and I've ran scan disk and defrag on the drive. No errors and speed isn't improved.

  Read the article

• Facter - custom fact, returns empty data set when invoked by Puppet agent

  - by user3684494

  According to this puppet labs article, I can create custom facts from shell scripts. I have created a bash script that returns a single fact, it is packaged in a modules facts.d directory. The module is included on the target system via an ENC class. When invoked by the puppet agent on the target it returns an empty set, when run by hand on the agent it correctly returns the fact. The script has execute permission on the master, but does not have it on the agent. I saw a bug report related to permissions and file types, but that was windows and supposed to be fixed in puppet version 3. What am I doing wrong? ENC definition: --- classes: facttest: Shell script: #!/bin/bash echo "test_fact1=$(hostname)" Permissions: master: -rwxr-xr-x 1 root root ... modules/facttest/facts.d/testfact.sh agent: -rw-r--r-- 1 root root ... /var/lib/puppet/facts.d/testfact.sh Agent message: Fact file /var/lib/puppet/facts.d/testfact.sh was parsed but returned an empty data set Version information: Puppet master: 3.5.1 (Debian) Facter master: 2.0.1 Puppet agent: 3.6.1 (OpenSUSE) Facter agent: 2.0.1

  Read the article

• Tuning up a MySQL server

  - by NinjaCat

  I inherited a mysql server, and so I've started with running the MySQLTuner.pl script. I am not a MySQL expert but I can see that there is definitely a mess here. I'm not looking to go after every single thing that needs fixing and tuning, but I do want to grab the major, low hanging fruit. Total Memory on the system is: 512MB. Yes, I know it's low, but it's what we have for the time being. Here's what the script had to say: General recommendations: Run OPTIMIZE TABLE to defragment tables for better performance MySQL started within last 24 hours - recommendations may be inaccurate Enable the slow query log to troubleshoot bad queries When making adjustments, make tmp_table_size/max_heap_table_size equal Reduce your SELECT DISTINCT queries without LIMIT clauses Increase table_cache gradually to avoid file descriptor limits Your applications are not closing MySQL connections properly Variables to adjust: query_cache_limit (> 1M, or use smaller result sets) tmp_table_size (> 16M) max_heap_table_size (> 16M) table_cache (> 64) innodb_buffer_pool_size (>= 326M) For the variables that it recommends that I adjust, I don't even see most of them in the mysql.cnf file. [client] port = 3306 socket = /var/run/mysqld/mysqld.sock [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] innodb_buffer_pool_size = 220M innodb_flush_log_at_trx_commit = 2 innodb_file_per_table = 1 innodb_thread_concurrency = 32 skip-locking big-tables max_connections = 50 innodb_lock_wait_timeout = 600 slave_transaction_retries = 10 innodb_table_locks = 0 innodb_additional_mem_pool_size = 20M user = mysql socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp skip-external-locking bind-address = localhost key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 4 myisam-recover = BACKUP query_cache_limit = 1M query_cache_size = 16M log_error = /var/log/mysql/error.log expire_logs_days = 10 max_binlog_size = 100M skip-locking innodb_file_per_table = 1 big-tables [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] [isamchk] key_buffer = 16M !includedir /etc/mysql/conf.d/

  Read the article

• ms excel 2010 in windows xp - when open workbook the data is formatted differently than when i saved it

  - by Justin

  I haven't been able to find an answer to this. I have multiple files that I use regularly in excel that now have cell formats of "date". Every single cell in the entire workbook (all sheets) is now formatted as "date". The problem is that I lost my formatting for percents, numbers years, etc and now everything is converted to date (xx/xx/xxxx). I am able to open previously saved versions of a file (prior to me having the problem) and the cells are formatted as I intend them to be (percents, numbers, general, as well as dates). Since this has happened on a couple different files recently, I am wondering how this is happening and how do I prevent it from happening in the future. I cannot cure the problem just by highlighting the entire sheet and converting back to general because I lose all my percents and number formatting. Example (Correct formatting): Month Year Working Days MTD POS Curr Rem May 2012 22 0 1,553,549 June 2012 22 0 1,516,903 June 2011 22 0 1,555,512 June 2010 22 0 1,584,704 Example (Incorrect formatting): Month Year Working Days MTD POS Curr Rem June Tuesday, July 04, 1905 Wednesday, January 04, 1900 Wednesday, January 18, 1900 213,320 July Tuesday, July 04, 1905 Wednesday, January 04, 1900 Monday, January 16, 1900 314,261 July Monday, July 03, 1905 Wednesday, January 04, 1900 Sunday, January 15, 1900 447,759 July Sunday, July 02, 1905 Wednesday, January 04, 1900 Monday, January 16, 1900 321,952 Sorry for the mess. Any suggestions?

  Read the article

• Stack Managed Switches over a distance

  - by Joel Coel

  We have several buildings with stacked switches, where the distance between the stacked units is considerable... separate floors, or at opposite ends of a hallway. They are 3Com switches that stack using cat6 cabling. These switches are coming up on 12 years old now, and as I look around at replacements it seems no one supports this scenario any more. Stacking switches want to use fiber links (it more for me to run and terminate the fiber stacking cables than to purchase the switch) or other custom cables that seem only intended to jump up to the next unit in a rack. What have others done to support stacking over a distance? I'm considering breaking up the stacked switches into separate managed entities and just bridging from the root switch in the buildings, but I'd really like to avoid that for what I hope are obvious reason. The closest thing I've found are from netgear that use hdmi cables for the stacking connection... I could try to support that by running an additional cat6 line and re-terminating both links into a single hdmi port, but I have concerns over that approach as well.

  Read the article

• nVidia performance with newer X and newer driver abysmal with Compiz

  - by Nakedible

  I recently upgraded Debian to Xorg 2.9.4 and installed nvidia-glx from experimental, version 260.19.21. This was somewhat of an uphill battle as the dependencies for the experimental nvidia-glx package are still somewhat broken. I got it to work without forcing the installation of any packages and without modifying the packages. However, after the upgrade compiz performance has been abysmal. I am using the desktop wall plugin and switching viewports is really slow - takes a few seconds for each switch. In addition to this, every effect that compiz does, such as zoom animations for icons when launching applications, takes seconds. The viewport switching speed changes relative to the amount of windows on that virtual screen - empty screens switch almost at normal speed, single browser windows work almost decently, but just 4 rxvt terminals slows the switches down to a crawl. My compiz configuration should be pretty basic. Xorg is likewise configured without anything special - the only "custom" configuration is forcing the driver name to be "nvidia". I've fiddled around with the nvidia-settings and compizconfig trying different VSync settings, but none of those helped. My graphics card is: NVIDIA GPU NVS 3100M (GT218) at PCI:1:0:0 (GPU-0). This is laptop GPU that is from the Geforce GTX 200 series. Graphics card performance should naturally be no problem. EDIT: In the end, nothing really worked, and I got really annoyed with the state of compiz and its support in Debian. Many nVidia driver revisions have passed and I am using Gnome 3 now, so I am accepting the best answers to this question even though the issue was not resolved.

  Read the article

• optimal folder structure for storing 100k files on a USB drive

  - by cherouvim

  I need to store 100k files (around 40GB) in a USB drive. Each file has a unique int id (e.g 45000). Option one is to put all files in a single folder: root/ root/1.pdf root/2.pdf root/3.pdf ... root/567.pdf root/568.pdf root/569.pdf ... root/10001.pdf root/10002.pdf root/10003.pdf ... root/99998.pdf root/99999.pdf root/100000.pdf Option two is to create a [1-9][0-9]* folder hierarchy based on that id: root/ root/1/file.pdf root/2/file.pdf root/3/file.pdf ... root/5/6/7/file.pdf root/5/6/8/file.pdf root/5/6/9/file.pdf ... root/1/0/0/0/1/file.pdf root/1/0/0/0/2/file.pdf root/1/0/0/0/3/file.pdf ... root/9/9/9/9/8/file.pdf root/9/9/9/9/9/file.pdf root/1/0/0/0/0/0/file.pdf Which option will scale better? I can understand that the second option will require tons of folders but each folder will at most contain 10 folders and 1 file. Maintenance will not be an issue since everything will be controlled by an application. Note that this is a USB drive on linux and based on the above I'd also like to know whether I should go with FAT32 or NTFS.

  Read the article

• Advice for UPC/Surge Protector in home office

  - by Fred

  I'm just starting out as an independant developer, mostly Unix stuff with some Windows thrown in occasionally. I've been running two machines, a linux and a windows dev machine. Long story short, we had a bad storm come through last week and I unplugged one machine, forgot to unplug the other and the p/s and mobo ended up dead. Luckily I backup to an external service religiously (rsync.net for anyone interested), so there was no loss in data, but it did show me a glaring hole in my current setup, namely, lack of UPC and Surge Protection (this has honestly never been an issue before). Can anyone recommend a UPC/Surge Protector for a home office? It only needs to support a single machine (I opted to use vmware instead of rebuilding that machine), but it's a quad core Phenom 2 with a 1k watt p/s. This is outside my experience so I thought I'd get some input from others. I'm looking for something that's reasonably priced and does the job reasonably well. I don't need absolute 100% uptime, just something to protect my PC better than it is now.

  Read the article

• PHP-FPM processes holding onto MongoDB connection states

  - by Brendan

  For the relevant part of our server stack, we're running: NGINX 1.2.3 PHP-FPM 5.3.10 with PECL mongo 1.2.12 MongoDB 2.0.7 CentOS 6.2 We're getting some strange, but predictable behavior when the MongoDB server goes away (crashes, gets killed, etc). Even with a try/catch block around the connection code, i.e: try { $mdb = new Mongo('mongodb://localhost:27017'); } catch (MongoConnectionException $e) { die( $e->getMessage() ); } $db = $mdb->selectDB('collection_name'); Depending on which PHP-FPM workers have connected to mongo already, the connection state is cached, causing further exceptions to go unhandled, because the $mdb connection handler can't be used. The troubling thing is that the try does not consistently fail for a considerable amount of time, up to 15 minutes later, when -- I assume -- the php-fpm processes die/respawn. Essentially, the behavior is that when you hit a worker that hasn't connected to mongo yet, you get the die message above, and when you connect to a worker that has, you get an unhandled exception from $mdb->selectDB('collection_name'); because catch does not run. When PHP is a single process, i.e. via Apache with mod_php, this behavior does not occur. Just for posterity, going back to Apache/mod_php is not an option for us at this time. Is there a way to fix this behavior? I don't want the connection state to be inconsistent between different php-fpm processes.

  Read the article

• Can I charge USB devices from a powered hub that isn't connected to a PC?

  - by Anodyne

  This will probably sound familiar to most of you... In my home, we have a whole bunch of devices that can be charged via USB (two iPhones, a BlackBerry, an iPod Touch, etc ad nauseam). We also have a bunch of USB chargers, each of which has a single USB port on it. I'd like to have something permanently connected to AC power with at least 4 USB ports on it, so we can just plug devices in and don't need to go looking for a free outlet. So here's the question: if I buy a powered USB hub, will that do the job even if I don't connect it to a PC? Ideally if you have a hub that you can personally verify will be suitable, let me know the manufacturer and model :-) Thanks in advance! EDIT: The solution I eventually went for was this: Kensington 4-Port USB Charger for Mobile Devices (Europe) There's also a US version here: Kensington 4-Port USB Charger for Mobile Devices (USA) It arrived yesterday, so I used it to charge the following devices, all at the same time, overnight last night: 32GB iPhone 3GS 16GB iPhone 3G First-generation iPod Touch Kensington Portable Power Pack for Mobile Devices I can't say anything about the charging speed (as I left it overnight) but all devices were fully charged this morning.

  Read the article

• Display errors using VMWare Player and Remote Desktop on Windows XP

  - by Tim

  I've come up against a weird display issue that I can't seem to find any "fix" for. When I first boot up my computer, everything behaves normally. If I start to use VMWare Player and/or Remote Desktop, my desktop starts having some odd video issues. The frames for some windows aren't drawn at all, if I move windows around rapidly, the area under where the window used to be isn't cleared (still shows artifacts of the content of the window), etc. In some cases, the minimize / restore / maximize buttons aren't drawn (but are click-able if you can guess where they are). I've tried the usual stuff - current drivers all around, using a single monitor, etc.. none of it seems to have any bearing. If I try to disable hardware acceleration, it tends to crash the computer. As I said earlier, it's running Windows XP, dual monitors, an NVidia en8400GS video card, asus p7p55d motherboard. Not sure what other pertinent details are needed. I would appreciate any help or suggestions!

  Read the article

• Local user vs. domain user? What is the right way here?

  - by ebeeb

  I'm a software developer in a company with 6 employees. Everyone has a machine for him-/herself, so none of the machines is shared. I'm currently setting up my machine with Windows 8 and was experimenting a bit with domain and local user accounts. Correct me please if I'm wrong, but I think the idea behind is, that domain users generally should not be able to modify the configuration of a machine (like installing software), since they are able to login on every single machine in the domain. The local user (usually just one local administrator per machine) is the one who cares about the configuration of the machine. But in my case the login into the domain is just for being able to access directories/servers in the domain (I do not really know the details, all I know is, that loggin into the domain user account is necessary). So overall I've got a local admin account and a domain account used on my machine. While working I'm logged in to my domain user account. But it annoys me, that I always need to enter the credentials of my local user account when I'm about to update/install something, which happens quite often as a software developer. I fixed this with adding the domain account into the user accounts in my control panel and putting it into the Administrators group. The only thing I wanted to know about this: is there something REALLY bad about doing this? Or is there maybe a more common way to be able to act like a local admin, while logged in as a domain user? PS: I'm sorry about the tags, but I don't know the proper ones. I'd be glad if some of the superuser experts could fix this :-)

  Read the article

• HP/IBM alternative to Buffalo iSCSI TerraStation?

  - by Robin Day

  I'm looking at virtualising some of our infrastructure in order to allow for more resiliance and future expandability. We have successfully virtualised on single servers with Direct Attached Storage and are now looking for a more future proof solution using a high powered host (or two) and a SAN (or two). I'm thinking that the host machine will probably be an HP ProLiant DL360 G7 (all of our exisiting infrastructure is HP). Unfortunately, I am new to the world of SANs. From what I can see, the Buffalo Terrastation III is all I would need in order to setup an iSCSI SAN for VMWare to use. However, I'm a little reticent to go that way as it's a bit too "entry level" for my liking. In particular I would be very keen for more redundancy, power, networking, etc. I'm also very aware that you "get what you pay for". Therefore, can anyone reccommend equivalents from the big boys? HP/IBM? I have searched high and low on the HP site and seen many options but am struggling to work out if it is all the hardware I will need. Some options appear to need separate controllers from disk enclosures, etc.

  Read the article

• Excel hyperlinks can be attached to a range of cells -- what is the use case for this?

  - by John Machin

  In Excel 2003 and 2007 (and presumably 2010), it is possible to attach a hyperlink to a single cell; this is well known. Excel also allows you select a range for insertion. In that case, clicking on any cell in the range will jump to the target of the hyperlink. I can't find any web reference to this possibility. My question is: What is the use case for being able to do this? My only suggestion: The first worksheet is a menu for the remainder of the workbook. Each worksheet or topic has a hyperlink on the menu sheet. Each hyperlinks occupies a 3x3 range of cells to make it easier for users in a hurry to click on the correct link. A side question: Interestingly, Excel allows you to overlap ranges. Example: Link from A1:C3 to file1. Then link from B2:D4 to file2. The overlapped cells (B2:C3) now point to file2. Only A1, A2, A3, B1, and C1 now point to file1. No warning is given about the overlap. What is the rationale for this behaviour?

  Read the article

• Changing the View of a Folder When It Is Opened from Finder

  - by user60044

  When I was running OS 10.4 I had all my folders beautifully organized with position and which ones should be opened in View mode and which one in Icon, etc. When I transitioned to 10.6 I found that OS ignored all that information and imposes an awful consequence of changing the view for some folder and that view moving up to all parent folders which don't have their views locked. The only way I can think of to get this functionality back is to either write a program that given a root directory will enumerate it setting the views based upon a static template I have. The other way I thought I could accomplish this is by Folder Actions. Aside from the fact that I don't know AppleScript it seems folder actions cannot be inherited. Since I have 1000s of folders involved here, all being inherited from a single root, I could not possibly manually add that action to each of those folders. What I would like to have is a folder action that whenever I open the folder from Finder, then if it contains any JPG, GIF, etc. type image files that it will automatically open that folder with a view of Icon with a reasonable size to support the number of images. If the folder contains only folders, then to open that folder in the list view. Does anyone have anything that could do this for me? Thank You, -- Mark

  Read the article

• How to make Thunderbird play nice with Google mail

  - by Christi

  Thunderbird and gmail aren't exactly the best of friends. Gmail's tags mean that Thunderbird often downloads multiple copies of a single mail. Anything tagged in gmail will appear in a folder related to that tag, the "all mail" folder, and possibly the "inbox" and "sent mail" folders too. Thus a mail with multiple tags could potentially be stored more than four times in a local Thunderbird cache. This can make searching difficult, and is obviously wasteful of disk space. The best solution I have come up with is as follows. Operate a zero inbox policy (i.e. use the inbox for processing live mail only and archive everything else) which eliminates an extra copy in the inbox. Secondly, configure Thunderbird not to sync the "Sent Mail" folder - this is a bit of a pain, since I actually find it quite useful to be able to look through just the mails I've sent, but a search can duplicate this functionality. In this way, most of the duplicates are removed, and only mail with tags is stored locally more than once. Ideally, however, I'd only like one copy of each mail to be stored locally. I am surprised Thunderbird doesn't store mail by some sort of hashing algorithm to prevent precisely this problem - but it wouldn't be compatible with the way the folders are mirrored in a local directory structure, I suppose. Can anyone think of a better way to get Thunderbird to cache a Google mail account locally efficiently.

  Read the article

• How to back up initial state of external backup drive?

  - by intuited

  I've picked up an HP Simplesave external drive. It comes with some fancy software that is of no use to me because I don't use Windows. Like many current consumer-targeted backup drives, the backup software is actually contained on the drive itself. I'd like to save the drive's initial state so that I can restore it if I decide to sell it. The backup box itself is somewhat customized: in addition to the hard drive device, it presents a CDROM-like device on /dev/sr0. I gather that the purpose of this cdrom device is to bootstrap via Windows autoplay the backup application which lives on the disk itself. I wouldn't suppose any guarantees about how it does this, so it seems important to preserve the exact state of the disk. The drive is formatted with a single 500GB NTFS partition. My initial thought was to use dd to dump the disk (/dev/sdb) itself, but this proved impractical, as the resulting file was not sparse. This seemed to be because the NTFS empty space is not filled with zeroes, but with a repeating series of 16 bytes. I tried gzipping the output of dd. This reduced to the file to a manageable size — the first 18GB was compressed to 81MB, versus 47MB to tarball the contents of the mounted filesystem — but it was very slow on my admittedly somewhat derelict Pentium M processor. The time to do that first 18GB was about 30 minutes. So I've resorted to dumping the disk state and partition data separately. I've dumped the partition state with sfdisk -d /dev/sdb > sfdisk.-d.out I've also created a compressed image of the NTFS partition (the only one on the disk) with ntfsclone --save-image --output - /dev/sdb1 | gzip -c > ntfsclone.img.gz Is there anything else I should do to ensure that I can restore the precise original state of the drive?

  Read the article

• NFS on top of GFS2 - does it work?

  - by Matthew

  We're currently using a NoSQL derivative called Splunk to receive our data. The software supports something called "search head pooling" in which the job-dispatching engine is housed on several servers which share a common storage point. Originally our intention was to use a clustered filesystem like GFS2 because of low latency, stability, and ease of setup. We set up GFS2, and it's working with no issues. However when trying to run the software, it's trying to create lock files, and a bunch of other things that their support team can't quite explain. Ultimate feedback from them was that they only support NFS. Our network administration team heavily frowns on NFS (lack of stability, file lock issues, etc). So, I was thinking about the possibility of setting up NFS on each server in the cluster to act as a wedge layer between the GFS2 filesystem and the software. Basically configure each server to export the GFS2 filesystem's mountpoint via NFS, and then tell each server to connect to that NFS share. That way we aren't introducing any single-points-of-failure should a dedicated NFS server go down, but the vendor gets their "required" NFS share. I'm just brainstorming ways around, so please tear this apart :)

  Read the article

• How do I speed up and cache mmap file access over NFS on Linux?

  - by Zan Lynx

  The server and client are both 64-bit Ubuntu 10.04 LTS. The application in question is a custom app that uses mmap() for fast random file access. Its ideal state is when the entire file is cached in RAM. The network connections are really fast 10Gb Ethernet. It is a virtual server blade setup. It isn't the network connections slowing things down because everything performs superbly when using a virtual disk (iSCSI to the SAN). But when we run the application on a NFS home directory mount, performance goes to the dogs. It appears that the Linux kernel isn't caching anything. So it is reading every single disk block needed by mmap() accesses over and over and over again. The NFS mount is done through autofs, which has only default settings. /proc/mounts shows the NFS mount is done with the following options: rw,relatime,vers=3,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.11.52,mountvers=3,mountproto=tcp,addr=192.168.11.52 How can I make Ubuntu 10.04 cache the file instead of reloading it all the time?

  Read the article

• LAMP Stack Version Help -- Is there a website or version tracker source to help suggest the right versions of each part of a platform stack?

  - by Chris Adragna

  Taken singly, it's easy to research versions and compatibility. Version information is readily available on each single part of a platform stack, such as MySQL. You can find out the latest version, stable version, and sometimes even the percentage of people adopting it by version (personally, I like seeing numbers on adoption rates). However, when trying to find the best possible mix of versions, I have a harder time. For example, "if you're using MySQL 5.5, you'll need PHP version XX or higher." It gets even more difficult to mitigate when you throw higher level platforms into the mix such as Drupal, Joomla, etc. I do consider "wizard" like installers to be beneficial, such as the Bitnami installers. However, I always wonder if those solutions cater more to the least common denominator -- be all to many -- and as such, I think I'd be better to install things on my own. Such solutions do seem kind of slow to adopt new versions, slower than necessary, I suspect. Is there a website or tool that consolidates versioning data in order to help a webmaster choose which versions to deploy or which upgrades to install, in consideration of all the other parts of the stack?

  Read the article

• DVI output _only_ working on Windows, not during booting or on Linux

  - by Mononofu

  So yesterday I booted my laptop up and the external monitor I have it connected to just stayed black. At first, I thought the problem would go away when Ubuntu was loaded, but it didn't. I tried to reboot a few times, to no avail. Then I decided to give Windows 7 a try, and suddenly (at the login-screen), my external monitor turned on and worked like normal. I have connected the monitor via DVI, and this only seems to work with Windows now. I don't even get a signal in my BIOS! Mind you, everything was working fine before that, and I didn't change a single thing. I then tried to connect the monitor via VGA (from my DVI jack, which can output VGA using an adaptor), and it worked again. However, 1920x1200 using VGA looks like crap - black print on white background is basically illegible. Do you have any ideas how to fix this peculiar problem? I only use windows for gaming, so it's no real help that it still works normally. Please also excuse any spelling mistakes, I am practically typing this blindly. Edit: I only have one graphics card in my laptop, and I can't select anything related to that in my BIOS. In fact, I can pretty much do almost nothing there. My laptop is a Nexoc Osiris E703, graphics gard is a GeForce Go 7900 GTX. As I mentioned before, DVI output during booting and on Ubuntu was working fine for years before yesterday!

  Read the article

< Previous Page | 507 508 509 510 511 512 513 514 515 516 517 518  | Next Page >