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  • "Safely remove hardware"...doesn't.

    - by Kev
    I have an external USB harddisk that I have scripted to safely shut down after a backup, so the backup operator can unplug it, and knows not to if the lights are still on for some reason. It's always worked fine using the DevEject command-line utility. This week it failed for some reason: DevEject 1.0 2003 c't/Matthias Withopf Ejecting 'USB Mass Storage Device' [USB\VID_0411&PID_002A\00000704C8D2]...FAILED (23,5) Error ejecting device USB Mass Storage Device, vetoed (15,5)! Worse yet, using the SRH tray icon, I click Stop, click OK, it pauses about 5 seconds with OK and Cancel greyed out, closes the sub-window, and then the main window with the Stop button still shows the device, and Stop is still available. I can keep doing that and it never gets rid of the device. I can still access it in Explorer. LockHunter reports that nothing is locking the drive. I've made no changes to the backup configuration or anything to do with the drive this week. Why the sudden flake-out? Short of a restart, which I can't do today before the backup operator goes home, how do I fix it?

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  • Improving browser performance while using lots of tabs?

    - by Andrew
    My browsing habits cause me to open lots of windows and tabs, either related to different projects I'm working on or things I may want to read later. I use OSX and use about 5 spaces with multiple windows in each space. The problem is eventually I'll have around 200 or more tabs open (spread over 15-20 windows) that I don't want to close. Needless to say, my computer's performance starts to degrade. As I write this on my mobile, Safari on my laptop is locking up the computer. I used to use Chrome but found better performance with Safari. What I'd like to know, is there a graph of browser performance based on tab usage? I don't need a browser that keeps all tabs active. It would be great if the browser could increase performance by "putting tabs to sleep". Or if there was some sort of tool for saving a "workspace" of tabs that you could reactivate the next time you are working on that project. What sort of solution can you recommend to solve this problem?

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  • Installing WindowsAuthentication breaks authentication / web.config?

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

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  • Vista - Profile not Loaded Correctly (Cannot Access Registry)

    - by Geoff
    Every so often, I log on and get the Following Message: User profile was not loaded correctly. You have been logged on with a temporary profile. Changes you make to this profile will be lost when you log off. Please see the event log for details or contact your administrator This almost always happens when somebody else has been on the computer for a while, and then I log on. This never used to happen, but now it happens pretty often. My profile is not permanently corrupted, all I have to do is restart my computer, but this annoys me, and I would like to fix it. I was curios about the reason of this cause, so I looked into the Event Log, and found the root of the problem was the ntuser.dat file in the profile that I was logging on to was locked at logon time. This resulted in the current users registry not being loaded, resulting in failure to load the profile. What could be locking this file? is there any way to get a process list without logging on so that I can identify which process has the file locked? Any other suggestions. Hopefully I can find a solution.

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  • Trying to delete directory with "rm -rf", but get message that it's not empty

    - by Ben Hocking
    I've tried deleting a directory using "rm -rf" and I'm getting the message "Directory not empty": Bens-MacBook-Pro:please benjaminhocking$ ls -lart empty_directory/ total 16 drwxr-xr-x 5 benjaminhocking staff 170 Aug 27 14:46 . drwxr-xr-x 3 benjaminhocking staff 102 Aug 27 15:28 .. Bens-MacBook-Pro:please benjaminhocking$ rm -rf empty_directory/ rm: empty_directory/: Directory not empty Bens-MacBook-Pro:please benjaminhocking$ rmdir empty_directory/ rmdir: empty_directory/: Directory not empty If I try the same thing using Finder (dragging the folder to the Trash), I get the message The operation can’t be completed because the item “empty_directory” is in use. I've tried doing xattr -d com.apple.quarantine, purely out of superstition, but it did no good. A probably important piece of context is that this directory was initially in a directory that should've been deleted by a "make clean" command I issued prior to Terminal locking up on me, after which a little over half of the other programs I had running also locked up, including Skype, and eventually the OS itself. I ended up having to reboot the computer by pressing and holding the power key. Edit to add: Another important piece of information I left off was that this was happening in an encrypted folder à la encfs. I was able to track down the corresponding folder in the encrypted side of things and delete it there. I still don't know why I couldn't do it from the decrypted side of things like I normally do. I'll leave this unanswered for now in case anyone has a good answer for that.

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  • Question About mk-table-checksum Results

    - by stevenmusumeche
    Hello, I have 1 master and 2 slaves. I am using MySQL 5.1.42 on all servers. I am attempting to use mk-table-checksum to verify that their data is in sync, but I am getting unexpected results on one of the slaves. First, I generate the checksums on the master like this: mk-table-checksum h=localhost --databases MYDB --tables {$table_list} --replicate=MYDB.mk_checksum --chunk-size=10M My understanding is that this runs the checksum queries on the master which then propagate via normal replication to the slaves. So, no locking is needed because the slaves will be at the same logical point in time when they run the checksum queries on themselves. Is this correct? Next, to verify that the checksums match, I run this on the master: mk-table-checksum --databases MYDB --replicate=IRC.mk_checksum --replicate-check 1 h=localhost,u=maatkit,p=xxxx If there are any differences, I repair the slaves like this: mk-table-sync --execute --verbose --replicate IRC.mk_checksum h=localhost,u=maatkit,p=xxxx After doing all of this, I repaired both slaves with mk-table-sync. However, everytime I run this sequence (after everything has already been repaired), one slave is perfectly in sync but one slave always has a few tables out of sync. I am 99.999% sure that the data on the slaves matches, since I repaired everything and the tables were not even updated on the master between runs of the checksum script. What would cause a few tables to always show out of sync on only one of the slaves? I am stuck. Here is the output: Differences on h=x.x.x.x,p=...,u=maatkit DB TBL CHUNK CNT_DIFF CRC_DIFF BOUNDARIES IRC product 10 0 1 product_id = 147377 AND product_id < 162085 IRC post_order_survey 0 0 1 1=1 IRC mk_heartbeat 0 0 1 1=1 IRC mailing_list 0 0 1 1=1 IRC honey_pot_log 0 0 1 1=1 IRC product 12 0 1 product_id = 176793 AND product_id < 191501 IRC product 18 0 1 product_id = 265041 IRC orders 26 0 1 order_id = 694472 IRC orders_product 6 0 1 op_id = 935375

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  • Evidence-Based-Scheduling - are estimations only as accurate as the work-plan they're based on?

    - by Assaf Lavie
    I've been using FogBugz's Evidence Based Scheduling (for the uninitiated, Joel explains) for a while now and there's an inherent problem I can't seem to work around. The system is good at telling me the probability that a given project will be delivered at some date, given the detailed list of tasks that comprise the project. However, it does not take into account the fact that during development additional tasks always pop up. Now, there's the garbage-can approach of creating a generic task/scheduled-item for "last minute hacks" or "integration tasks", or what have you, but that clearly goes against the idea of aggregating the estimates of many small cases. It's often the case that during the development stage of a project you realize that there's a whole area your planning didn't cover, because, well, that's the nature of developing stuff that hasn't been developed before. So now your ~3 month project may very well turn into a 6 month project, but not because your estimations were off (you could be the best estimator in the world, for those task the comprised your initial work plan); rather because you ended up adding a whole bunch of new tasks that weren't there to begin with. EBS doesn't help you with that. It could, theoretically (I guess). It could, perhaps, measure the amount of work you add to a project over time and take that into consideration when estimating the time remaining on a given project. Just a thought. In other words, EBS works on a task basis, but not on a project/release basis - but the latter is what's important. It's what your boss typically cares about - delivery date, not the time it takes to finish each task along the way, and not the time it would have taken, if your planning was perfect. So the question is (yes, there's a question here, don't close it): What's your methodology when it comes to using EBS in FogBugz and how do you solve the problem above, which seems to be a main cause of schedule delays and mispredictions? Edit Some more thoughts after reading a few answers: If it comes down to having to choose which delivery date you're comfortable presenting to your higher-ups by squinting at the delivery-probability graph and choosing 80%, or 95%, or 60% (based on what, exactly?) then we've resorted to plain old buffering/factoring of our estimates. In which case, couldn't we have skipped the meticulous case by case hour-sized estimation effort step? By forcing ourselves to break down tasks that take more than a day into smaller chunks of work haven't we just deluded ourselves into thinking our planning is as tight and thorough as it could be? People may be consistently bad estimators that do not even learn from their past mistakes. In that respect, having an EBS system is certainly better than not having one. But what can we do about the fact that we're not that good in planning as well? I'm not sure it's a problem that can be solved by a similar system. Our estimates are wrong because of tendencies to be overly optimistic/pessimistic about certain tasks, and because of neglect to account for systematic delays (e.g. sick days, major bug crisis) - and usually not because we lack knowledge about the work that needs to be done. Our planning, on the other hand, is often incomplete because we simply don't have enough knowledge in this early stage; and I don't see how an EBS-like system could fill that gap. So we're back to methodology. We need to find a way to accommodate bad or incomplete work plans that's better than voodoo-multiplication.

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  • MySQL Config on Large Machine

    - by Jonathon
    We have a Windows 2003 Enterprise Edition server (64bit) running only MySQL 5.1.45 64-bit. It has 16G RAM and 10T of hard-drive space in RAID 10. We are having horrible performance from mysqld (85-100% CPU utilization). We were running a smaller machine with better performance, so I am assuming our my.ini file is not correct for our current machine. The my.ini file is as follows: [client] port=3306 [mysql] default-character-set=latin1 [mysqld] port=3306 basedir="D:/MySQL/" datadir="D:/MySQL/data" default-character-set=latin1 default-storage-engine=MYISAM sql-mode="" skip-innodb skip-locking max_allowed_packet = 1M max_connections=800 myisam_max_sort_file_size=5G myisam_sort_buffer_size=500M table_open_cache = 512 table_cache=8000 tmp_table_size=30M query_cache_size=50M thread_cache_size=128 key_buffer_size=3072M read_buffer_size=2M read_rnd_buffer_size=16M sort_buffer_size=2M #replication settings (this is the master) log-bin=log server-id = 1 Does anyone see anything wrong with this setup? For a machine with this much RAM, why in the world would mysqld eat up so much CPU? I know we can optimize some queries, etc., but it did run okay on a smaller machine, so I am pretty sure it is the config. Thanks in advance for any help.

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  • How can I change the default location/action of 'Open Outlook Data File' in Outlook 2010?

    - by Chadddada
    I have recently deployed a Remote Desktop Host server that functions as a remote Microsoft Office 2010 work space for users. In part of the locking down of this server I have installed all programs on the D: drive and, through the use of Group Policy, hidden all the drives on the server from standard users. In addition to hiding these drives I am not allowing users to save anything locally (on the server) or open Libraries. However one of the functions of the server is to provide the Outlook client. Often users will have the .PST file stored on a network location and want to open this in Outlook. Can I change the default action or location that File Open Open Outlook Data File looks or tries to pull the file from? The default location seems to be under Users / Libraries. When click 'Open' you get a warning: This operation has been cancelled due to restrictions in effect on this computer. Clicking OK drops the user into a small menu that shows attached network drives under Computer. Can I instead have the 'Open' click drop the users in a defined network drive or just open computer and allow them to select a share? I don't want them to see the error message. A solution that looks to have been used for Office 2000/03 is: Key: HKEY_CURRENT_USER\Software\Microsoft\Office\<version>\Outlook Value name: ForceOSTPath Value type: REG_EXPAND_SZ Value: path to your storage folder I am not sure if there is a better way to do this now OR if this even works with Office 2010.

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  • MAMP MySQL won't start

    - by Tony
    I uninstalled MAMP completely, downloaded fresh copy of MAMP 2 from the MAMP website, did a clean install. However, when I try to start mysql, I get the following error log 111120 21:37:49 mysqld_safe Starting mysqld daemon with databases from /Applications/MAMP/db/mysql 111120 21:37:50 [Warning] You have forced lower_case_table_names to 0 through a command-line option, even though your file system '/Applications/MAMP/db/mysql/' is case insensitive. This means that you can corrupt a MyISAM table by accessing it with different cases. You should consider changing lower_case_table_names to 1 or 2 111120 21:37:50 [Note] Plugin 'FEDERATED' is disabled. 111120 21:37:50 InnoDB: The InnoDB memory heap is disabled 111120 21:37:50 InnoDB: Mutexes and rw_locks use GCC atomic builtins 111120 21:37:50 InnoDB: Compressed tables use zlib 1.2.3 111120 21:37:50 InnoDB: Initializing buffer pool, size = 128.0M 111120 21:37:50 InnoDB: Completed initialization of buffer pool 111120 21:37:50 InnoDB: highest supported file format is Barracuda. 111120 21:37:50 InnoDB: Waiting for the background threads to start 111120 21:37:51 InnoDB: 1.1.5 started; log sequence number 1595675 111120 21:37:51 [ERROR] /Applications/MAMP/Library/bin/mysqld: unknown option '--skip-locking' 111120 21:37:51 [ERROR] Aborting 111120 21:37:51 InnoDB: Starting shutdown... 111120 21:37:51 InnoDB: Shutdown completed; log sequence number 1595675 111120 21:37:51 [Note] /Applications/MAMP/Library/bin/mysqld: Shutdown complete 111120 21:37:51 mysqld_safe mysqld from pid file /Applications/MAMP/tmp/mysql/mysql.pid ended I've no clue why this is happening. I googled around and made sure that no instance of MySQL is running. Nothing seems to help.

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  • Virtual Machine Network Architecture, Isolating Public and Private Networks

    - by Mark
    I'm looking for some insight into best practices for network traffic isolation within a virtual environment, specifically under VMWARE ESXi. Currently I have (in testing) 1 hardware server running ESXi but i expect to expand this to multiple pieces of hardware. The current setup is as follows: 1 pfsense VM, this VM accepts all outside (WAN/internet) traffic and performs firewall/port forwarding/NAT functionality. I have multiple public IP addresses sent to the this VM that are used for access to individual servers (via per incoming IP port forwarding rules). This VM is attached to the private (virtual) network that all other VMs are on. It also manages a VPN link into the private network with some access restrictions. This isn't the perimeter firewall but rather the firewall for this virtual pool only. I have 3 VMs that communicate with each other, as well as have some public access requirements: 1 LAMP server running an eCommerce site, public internet accessible 1 accounting server, access via windows server 2008 RDS services for remote access by users 1 inventory/warehouse management server, VPN to client terminals in warehouses These servers constantly talk with each other for data synchronization. Currently all the servers are on the same subnet/virtual network and connected to the internet through the pfsense VM. The pfsense firewall uses port forwarding and NAT to allow outside access to the servers for services and for server access to the internet. My main question is this: Is there a security benefit to adding a second virtual network adapter to each server and controlling traffic such that all server to server communication is on one separate virtual network, while any access to the outside world is routed through the other network adapter, through the firewall, and on the the internet. This is the type of architecture i would use if these were all physical servers, but i'm unsure if the networks being virtual changes the way i should approach locking down this system. Thank you for any thoughts or direction to any appropriate literature.

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  • How to find process that's using 100% of CPU

    - by Gabriel
    As i'm looking at htop and top i see that my processor usage is 100% allways. But i can not see any process that is using that much CPU. Htop shows me only 1-2 processes that use around 5% cpu time. Is there a way to find the processes that use that much cpu time? Here is the output of ps -eo pcpu,pid,user,args | sort -r -k1 | less %CPU PID USER COMMAND 0.8 20413 root jsvc.exec -user tomcat -cp ./bootstrap.jar -Djava.endorsed.dirs=../common/endorsed -outfile ../logs/catalina.out -errfile ../logs/catalina.err -verbose org.apache.catalina.startup.Bootstrap -security 0.3 631 mysql /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/mysql.pid --skip-external-locking 0.2 3380 root /usr/local/apache/bin/httpd -k restart -DSSL 0.2 24698 root tailwatchd 0.2 22472 root /usr/local/jdk/bin/java -Djava.util.logging.config.file=/usr/local/jakarta/tomcat/conf/logging.properties -Dfile.encoding=UTF8 -XX:MaxPermSize=128m -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/usr/local/jakarta/tomcat/common/endorsed -classpath /usr/local/jakarta/tomcat/bin/bootstrap.jar -Dcatalina.base=/usr/local/jakarta/tomcat -Dcatalina.home=/usr/local/jakarta/tomcat -Djava.io.tmpdir=/usr/local/jakarta/tomcat/temp org.apache.catalina.startup.Bootstrap start 0.1 32095 root cpanellogd - processing bandwidth 0.0 9733 root sleep 1m

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  • Clustering filesystem for small files

    - by viraptor
    Hi, I'm looking for a distributed filesystem which I could use for storing lots of small files (<1MB usually). What I want to get is: 2 servers which have the fs mounted themselves and mirror the data locking support (among reachable nodes) some kind of best-effort automatic resynchronisation after one node goes down and comes back again What I mean by the resync is that, I'm ok with both servers doing read/write operations even if they split-brain. I'm also ok if a local process obtains a lock if the other host is not reachable. From the resync I expect only a file-level consistent view after a while - that is - if file x is modified on both nodes during a split-brain, I don't really care which one is available after they join again, as long as it's full file, not one block coming from node1 and another block from node2. Is there a solution like that out there? I see that gluster has some problems with file locks (even in 3.1). I also noticed that OCFS2 will panic if both nodes split-brain. What other filesystem would allow me to do what I want?

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  • What am I doing wrong in my config for MySql?

    - by Knight Hawk3
    When I load my my.conf with the config at the bottom Mysql fails to start and prints no errors. I am running Arch Linux (Updated) with the latest MySQL (5.5) and the latest nginx (Well latest in the repository, Not sure how to check. Only installed it today) I will give you any info you ask for. Thanks for helping! # The following options will be passed to all MySQL clients [client] #password = your_password port = 3306 socket = /var/run/mysqld/mysqld.sock # Here follows entries for some specific programs # The MySQL server [mysqld] port = 3306 socket = /var/run/mysqld/mysqld.sock skip-locking key_buffer = 16K max_allowed_packet = 1M table_cache = 4 sort_buffer_size = 64K read_buffer_size = 256K read_rnd_buffer_size = 256K net_buffer_length = 2K thread_stack = 64K # Don’t listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (using the “enable-named-pipe” option) will render mysqld useless! # #skip-networking server-id = 1 # Uncomment the following if you want to log updates #log-bin=mysql-bin # Uncomment the following if you are NOT using BDB tables skip-bdb # Uncomment the following if you are using InnoDB tables #innodb_data_home_dir = /var/lib/mysql/ #innodb_data_file_path = ibdata1:10M:autoextend #innodb_log_group_home_dir = /var/lib/mysql/ #innodb_log_arch_dir = /var/lib/mysql/ # You can set .._buffer_pool_size up to 50 – 80 % # of RAM but beware of setting memory usage too high #innodb_buffer_pool_size = 16M #innodb_additional_mem_pool_size = 2M # Set .._log_file_size to 25 % of buffer pool size #innodb_log_file_size = 5M #innodb_log_buffer_size = 8M #innodb_flush_log_at_trx_commit = 1 #innodb_lock_wait_timeout = 50 skip-innodb [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [isamchk] key_buffer = 1M sort_buffer_size = 1M [myisamchk] key_buffer = 1M sort_buffer_size = 1M [mysqlhotcopy] interactive-timeout So what is my silly error?

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  • Bad Intel DQ965GF motherboard? Fails memtest, but memory is good.

    - by Boden
    I've got a machine with a DQ965GF motherboard. Two days ago it started locking up hard. Ran memtest 3.3, 1.7, and TestMem 4. TestMem just freezes, memtest failed on moving 8 bit inversions. Letting memtest run eventually causes the system to restart. I pulled memory sticks one by one, and then replaced the memory with a couple of known good sticks. No luck. I switched power supplies, didn't help. Swapped video cards just to be safe. No help. When I start the machine I get a single beep before it POSTs. According to the manual, a single beep means: 1 beep - Refresh Error (with nothing on the screen and it is not a video problem) I'm assuming that the motherboard has failed since it's obviously not a RAM or power issue. Do you agree? NOTE: I also tried resetting BIOS defaults, and even flashed the BIOS to the latest version. I also ran the Mersenne Prime Test and the CPU seems to click along just fine. (Tried logging in to superuser with openid but it's not working for me today. Hope this gets through)

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  • MySQL consuming all system memory on INSERT ... SELECT

    - by siete
    The mysql daemon is getting killed because Linux is reaching out of memory: Oct 24 07:41:23 <hostname> kernel: [82297.673701] Out of memory: kill process 13816 (mysqld) score 1839626 or a child There is a link with some workaround on this. That only happen when executing a query INSERT ... SELECT with a very huge resulset. MySQLTuner script displays that maximum theorical memory is less than 8GB, but top and munim shows that is getting over all RAM and swap available: [--] Total buffers: 560.0M global + 72.2M per thread (100 max threads) [OK] Maximum possible memory usage: 7.6G (43% of installed RAM) I'm tried to tune some options with not results, there are the relevant ones: skip-locking max_connections = 100 key_buffer_size = 512M max_allowed_packet = 32M table_open_cache = 2000 open_files_limit = 3000 sort_buffer_size = 16M read_buffer_size = 16M read_rnd_buffer_size = 8M myisam_sort_buffer_size = 64M thread_cache_size = 4 query_cache_size = 16M query_cache_limit = 2M thread_concurrency = 4 join_buffer_size = 32M tmp_table_size = 32M max_heap_table_size = 32M query_cache_limit = 8M bulk_insert_buffer_size = 64M myisam_max_sort_file_size = 50GB myisam_mmap_size = 10GB And there is a system resume: OS: Linux Debian "Squeeze" 6.0.8 (upgraded yesterday) RAM: 18GB Swap: 18GB MySQL: 5.1.72-2 (official Debain release) At this moment, update or change OS or MySQL version is not possible, there is any option that can help and i missed? Sorry by my english, and thank you in advance! Edit: I'm only using MyISAM tables, and cannot change to InnoDB.

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  • Hardware freeze during disk activity

    - by Thomi
    I built myself a linux-based NAS. It has several drives of various sizes and ages in an LVM configuration, with 800GB or so of data. The data is served using a simple samba server. This was working flawlessly, but after physically moving it, it has developed a strange fault: Whenever I do something on the server to cause disk activity, the entire machine freezes hard. This has the effect of killing any open network connections to the box, and generally making it useless. If I leave the machine for a few minutes it seems to come right again, but obviously this isn't really a solution. There are no error or warning messages in syslog, or the kernel logs. If I power the machine on, and leave it, it runs for several days without locking up. After that time I stopped testing. It doesn't freeze instantly - obviously it doesn't freeze while booting, and I can normally log in via SSH and start poking around in a few log files for a couple of minutes before it dies. My question is: What diagnostic tests can I run to determine the casuse?

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  • Number of routers in small community lock up and require reboot.

    - by Anthony Hiscox
    I live in a small town which has one primary ISP. Lately I have noticed that a number of wireless routers have been locking up and requiring a reboot before allowing any connections. This has affected two of my routers, my work router, and a few others. In all cases wired continued to function as usual. Often wireless clients can see the SSID but simply won't connect. I can only think of a few possibilities and was hoping someone here might be able to point me in the right direction: Our ISP is well known to be flaky, something they are doing is causing this, what that might be I have no clue it as seems to affect the wireless only. There's a power issue in town, given our remote location and reputation for crap electrical, this seems reasonable. Only one router was plugged in to a UPS, and I'm not sure of the quality. There is some bug in all the different firmware for every one of these routers (all different). That doesn't seem reasonable, unless; it's an unknown (or known) exploit or DoS of some sort being launched by a massive team of ninjas hell bent on forcing us all to be tethered to our walls by ethernet cables or; it's just been a coincidence and I'm just paranoid (this has some weight, I mean read 4 again). Anyone else experience similar issues and have some tips?

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  • A few tables are still out of sync after running mk-table-sync

    - by smusumeche
    I have 1 master and 2 slaves. I am using MySQL 5.1.42 on all servers. I am attempting to use mk-table-checksum to verify that their data is in sync, but I am getting unexpected results on one of the slaves. First, I generate the checksums on the master like this: mk-table-checksum h=localhost --databases MYDB --tables {$table_list} --replicate=MYDB.mk_checksum --chunk-size=10M My understanding is that this runs the checksum queries on the master which then propagate via normal replication to the slaves. So, no locking is needed because the slaves will be at the same logical point in time when they run the checksum queries on themselves. Is this correct? Next, to verify that the checksums match, I run this on the master: mk-table-checksum --databases MYDB --replicate=IRC.mk_checksum --replicate-check 1 h=localhost,u=maatkit,p=xxxx If there are any differences, I repair the slaves like this: mk-table-sync --execute --verbose --replicate IRC.mk_checksum h=localhost,u=maatkit,p=xxxx After doing all of this, I repaired both slaves with mk-table-sync. However, everytime I run this sequence (after everything has already been repaired), one slave is perfectly in sync but one slave always has a few tables out of sync. I am 99.999% sure that the data on the slaves matches, since I repaired everything and the tables were not even updated on the master between runs of the checksum script. What would cause a few tables to always show out of sync on only one of the slaves? I am stuck. Here is the output: Differences on h=x.x.x.x,p=...,u=maatkit DB TBL CHUNK CNT_DIFF CRC_DIFF BOUNDARIES IRC product 10 0 1 product_id = 147377 AND product_id < 162085 IRC post_order_survey 0 0 1 1=1 IRC mk_heartbeat 0 0 1 1=1 IRC mailing_list 0 0 1 1=1 IRC honey_pot_log 0 0 1 1=1 IRC product 12 0 1 product_id = 176793 AND product_id < 191501 IRC product 18 0 1 product_id = 265041 IRC orders 26 0 1 order_id = 694472 IRC orders_product 6 0 1 op_id = 935375

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  • Windows File Access Denied

    - by Tom
    I seem to have a general problem with "access denied on Windows". It manifests itself every time if e.g: My bat file calls a compiler creates a file on disk My bat file renames a file But I also have files downloaded (FireFox) to Windows desktop where Windows is giving me "access denied" if I try delete the file. Tried disable AVG + make exception in AVG resident shield (I have tried checking with Task Manager + Winternals process explorer that it is not process running still running that should cause the locks.) Windows 7. My user account is an administrator. All files are created by same user account. The problem is recent, but some things I first noticed yesterday (when I started calling .bat files again which I have used for many years) I have tried: Starting e.g. Windows Explorer with "run as administrator", but that makes no difference right-click - properties - security and changes permissions/ownership (I also get "access denied" when trying this so this does not help) Here is a ascreenshot if I try change security of a "locked" file. (The problem here is the locking occurs continously every time the file is created) ! If I click on, it states I am not the owner? Which baffles me as I just created it. (Yes, through a .bat file calling executables that create the file. But all running under my administrator user account. Interestingly after having this dialog open, the file somehow sometimes suddenly seem to allow me delete it)

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  • Proper end of day sequence to maintain monitor config

    - by WarmBeer
    I've got an HP EliteBook 6930p that travels from home, where it is connected to individual cables, and work where there is a docking station. At both locations I have an external monitor as the secondary monitor and like to have the laptop screen as the primary, i.e. with the task bar. At the end of the day I close the laptop, which is supposed to set it to standby. When I get home I plug in the power cord and the external monitor cord and open the computer. When heading into work I close the computer and unplug everything. Inevitably when I open the computer at the new location the monitors are reversed, i.e. the primary, task bar display is on the external monitor and the laptop shows the secondary, even though when i click identify the laptop has the 1. I then have to disable the secondary display, switch the primary to the laptop and re-enable the secondary. I've tried locking the computer before closing and occasionally that works to keep the setup in place but not always. Any suggestions for how to keep the config in place during transport? ed

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  • How do you optimize your Outlook Exchange + IMAP setup?

    - by Mike
    My company provides an Outlook/Exchange account we must use for mail/calendar. Like many companies, they unfortunately also provide a ridiculously small mail quota. I got tired of managing and backing up .pst files (since I'm always in my e-mail there is never a good time to back it up), so I started storing my archived mail "in the cloud", using an IMAP server I set up on my Linux box. This has a few drawbacks for me: IMAP (at least the implementation in Outlook) is *very slow*. Furthermore, if I move a large number of messages to the IMAP server, it blocks the entire Outlook client for hours sometimes, which is quite annoying. Can't use exchange over HTTP to do mail without launching a VPN session, because the client-side rules I have which organize my mail fail and disable the rule if the IMAP server can't be reached. If I reply to a message from my IMAP store, I have to specify a SMTP server willing to relay for me in order to send e-mail, unless I always remember to select my Exchange account while composing e-mail. ... but the main advantage of being very easy to back up, with a couple of cron jobs that essentially do an 'rsync'. Short of moving the IMAP server to my local host (which seem like might have the same file locking problems as using a .pst), my options seem limited for solving (1). I'd like to come up with a solution for (2) and (3) though. For problem (2) would it be possible to somehow tell Outlook that the IMAP server is "offline", and have it synchronize my changes during a periodic "send and receive"? If so, I wonder if it would block the Outlook client, like it does in problem (1), and if it would be compatible with the client-only rules I use to sort my mail into folders. I've looked all over the options menu and have not found a way to tell Outlook to not use a certain account for sending mail, which would solve (3). Is anyone else crazy enough to be doing something like this? Any ideas?

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  • After adding skip-innodb mysql doesn't start

    - by Pentium10
    I am trying to setup these values: #skip-bdb #skip-locking #skip-innodb When I add them to /etc/mysql/my.cnf and even if I turn ON of of, them after I do the service restart mysql fails to start, and no error message printed. sudo service mysql restart [ ok ] Stopping MySQL database server: mysqld. [FAIL] Starting MySQL database server: mysqld . . . . . . . . . . . . . . failed! Previously I made sure that I have no InnoDB tables, and all files of that type were removed. I tried looking for error files but I couldn't locate it: /var/log/mysql.err is a 0 byte file /var/log/mysql folder has no files rsyslog was changed in past with inetutils-syslogd, and this might have changed the log files, and it could be the reason why I don't see any error logs, and I am stuck how to look or go forward.

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  • Delay init from starting a service for a period of time?

    - by Matthew
    I am trying to get a rudimentary NFS server up and running. Right now the server is configured as an NFS server due to a workaround for a vendor issue not supporting direct attached clustered storage, which we are trying to get them to resolve. The vendor software is Splunk. The splunk feature we are using requires files be located on shared storage (which for us is /mnt/nfs until they support a real clustered filesystem). Currently the server has a GFS2 filesystem mounted at bootup (it is the only server with the filesystem actively mounted so there should be no problems with locking). We went with GFS2 so switching over to a clustered filesystem is easy should the vendor begin supporting it. NFS is configured to mount that filesystem at /mnt/nfs, which the splunk installation than sees. Splunk is configured to find it's configuration files in /mnt/nfs. However, I am running into a problem where the splunk daemon starts before nfs is finished loading, and because it sees nothing at /mnt/nfs it starts creating files there, and then when the files disappear (nfs finishes mounting the share), splunk craps out. Splunk is set to run at runlevel 3, S90. NFS is set at runlevels 2-5, S60. Is there any way to delay the startup of the splunk process further?

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  • Why not block ICMP?

    - by Agvorth
    I think I almost have my iptables setup complete on my CentOS 5.3 system. Here is my script... # Establish a clean slate iptables -P INPUT ACCEPT iptables -P FORWARD ACCEPT iptables -P OUTPUT ACCEPT iptables -F # Flush all rules iptables -X # Delete all chains # Disable routing. Drop packets if they reach the end of the chain. iptables -P FORWARD DROP # Drop all packets with a bad state iptables -A INPUT -m state --state INVALID -j DROP # Accept any packets that have something to do with ones we've sent on outbound iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT # Accept any packets coming or going on localhost (this can be very important) iptables -A INPUT -i lo -j ACCEPT # Accept ICMP iptables -A INPUT -p icmp -j ACCEPT # Allow ssh iptables -A INPUT -p tcp --dport 22 -j ACCEPT # Allow httpd iptables -A INPUT -p tcp --dport 80 -j ACCEPT # Allow SSL iptables -A INPUT -p tcp --dport 443 -j ACCEPT # Block all other traffic iptables -A INPUT -j DROP For context, this machine is a Virtual Private Server Web app host. In a previous question, Lee B said that I should "lock down ICMP a bit more." Why not just block it altogether? What would happen if I did that (what bad thing would happen)? If I need to not block ICMP, how could I go about locking it down more?

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