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• Any way to bring my laptop battery back to life?

  - by Josh

  Recently my laptop battery will get extremely hot (definitely hotter than it should get) when I charge it. After that I usually end up removing it once it's fully charged to let it cool down, which takes a couple hours... Question is, is my battery dead? My last battery I had that died just ended up lasting 2 - 3 minutes on battery, no weird heat issues. And is there any way to possibly fix this? Probably not but I won't be able to get a replacement anytime soon. UPDATE: A few days ago when this happened and it cooled down, assuming it was fully charged, I ran my laptop on battery, and the battery life lasted about 10 minutes and then the laptop shutdown. I then plugged it in later and charged it back up, and for a while I had a orange light blinking on my laptop - which I assumed meant the battery was dead, especially since I got 10 minutes battery life. Then today, I turned my laptop on and was surprised to see that the battery was at 20% and charging (it's been plugged in since the incident above, so it should have been fully charged when I shut it off) I let it charge up, and as usual it got pretty hot around the time it was fully charged. So I turned my laptop off and pulled the battery out to let it cool down Now the thing is, just now I tried running it on battery, and it's been going for an hour now... so maybe its not dead? (also the orange light is no longer blinking...) Thanks in advance if anyone knows whats going on, and how to fix it, if its fixable =] EDIT: Some info if it helps... my laptop is about 2 years ago, and it's an Asus K50ID. I know laptop batteries usually don't last more than a year but I'm trying to keep this one going for as long as I can.

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• How to verify a self-signed certificate from another server using openssl?

  - by ntsue

  I am new to openssl and I am having some trouble verifying (from a client machine) an ftp server using ssl with a self-signed certificate. I generated the .cer file by going to my server in IIS and exporting the certificate without the private key. I believe that this is all that I should need on the client side, right? I use the following code to verify the certificate openssl verify ftp.cer and the error that I get back is error 20 at 0 depth lookup:unable to get local issuer certificate I tried this as well: openssl verify -CAfile ftp.cer ftp.cer but received the same error. From what I understand about SSL, this is happening because I have no chain of trust that connects to this server. By default, openssl did not install any trusted CAs and this is fine. I would just like to tell it to trust this server. I tried various tutorials telling me how to add a certificate authority, including this one here, however the instructions are for linux and include adding a symlink and I am trying to do this in windows. If anyone could provide any guidance on how to do this, or enlighten me if I am not understanding something correctly, I would greatly appreciate it. Thanks!

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• Nvidia GTS 360M in Asus laptop shuts off when gaming on external display

  - by mr odus

  I have had this problem on my Asus G51j Intel I5, Nvidia GTS360M graphics card. Just updated the drivers to latest off Nvidias site. Most games I play, If I hook it up through an external monitor(this happens whether it's HDMI or VGA). The laptop hard shuts down after about 20 minutes, give or take. This tends to happen on more graphically intense games like Call of dutys, bioshock. I'm running Windows 7, latest nvidia drivers. Games work fine on my laptops screen, and Movies, general computing work fine on the external displays. The laptop always sits on a cooling pad and the latest time was in front of my AC unit, I ran heatfan or whatever the heat tracking software was, and my temperatures were normal through a shut down. This has been happening for the life of the laptop. I dont play very many games, and even fewer on an external monitor, so this issue doesnt come up much Is it possible I have a faulty graphics card? Is there anything else I can try?

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• Zero sized tar.gz file found inside a tar.gz file

  - by PavanM

  My current directory contains a single file like this- $ls -l -rw-r--r-- 1 root staff 8 May 28 09:10 pavan Now, I want to tar and gzip this file like $tar -cvf - * 2>/dev/null |gzip -vf9 > pavan.tar.gz 2>/dev/null (I am aware I am creating the zipped file in the same directory as the original file) When I run the above tar/gzip commands around 20 times, a few times I observe that the final tarred and zipped file pavan.tar.gz file has a ZERO sized pavan.tar.gz file. I am not sure from where is this zero sized file coming into the archive from. Note: I am NOT running tar/gzip commands on an already existing tar.gz file. I always make sure that the directory has only one file before running the commands On googling, as described here, I suspected that the tar.gz being created was also part of the file being archived. But in my case, gzip is the one who's creating the final file and by the time gzip runs, tar should be done tarring. This is happening on AIX but I've used Linux tag too, to draw more attention, as I guess the problem is platform independent.

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• Web SMTP Server(foo.com) will not send mail to exchange server which is also(foo.com)

  - by Atom

  I think I understand this problem fully, but I do not know how to approach it or where to go in terms of troubleshooting. I've got my one domain http://foo.com that runs a Zen Cart installation that needs to be able to send emails to users(order confirmation, password reset). This works fine to send to any other domain BUT foo.com. I'm running a locally hosted exchange server that is foo.com, and we can send and receive email just fine. If I run tail -f /usr/local/psa/var/log/maillog I recieve this error: Apr 1 10:08:51 foo qmail-local-handlers[25824]: Handlers Filter before-local for qmail started ... Apr 1 10:08:51 foo qmail-local-handlers[25824]: from= Apr 1 10:08:51 foo qmail-local-handlers[25824]: [email protected] Apr 1 10:08:51 foo qmail-local-handlers[25824]: cannot reinject message to '[email protected]' Apr 1 10:08:51 foo qmail: 1270141731.583139 delivery 32410: failure: This_address_no_longer_accepts_mail./ Apr 1 10:08:51 foo qmail: 1270141731.584098 status: local 0/10 remote 0/20 I understand that the foo.com SMTP service doesn't have any account but the one that is used to authenticate mail being sent, so of course, I understand why it's saying 'this address no longer accepts mail'. My question is, how can I get the foo.com(web) SMTP service to handle emails meant for my exchange server([email protected]) or how do I handle the mail that needs to be sent to our exchange server? Is this something to do with MX records? Thanks in advance A

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• PNP4Nagios, nagiosgraph, separate Cacti, or something else for Nagios trending

  - by Matt

  I've been using Nagios for a while now and recently started using Cacti after being dissatisfied with the lack of scaling and lack of any GUI in MRTG. I'm interested in adding trending to my Nagios installation and wondered what was the best route to go. I've looked around a bit and have seen what's available, but there's not a lot of information around to differentiate them from each other. My Nagios install has about 250 hosts and 1100 service checks, but many of them are just simple network devices and there's only about 20 servers and 300 services associated with them. All servers but 2 are running Windows Server 2003. What are the main highlights of PNP4Nagios vs. nagiosgraph, or would I be better off using some sort of tool to convert the data to RRD form and just view it directly in Cacti? Is there a completely different direction I could go that would be even better? Please comment if you need any more information, I tend to be too wordy and tried to keep this question brief. Thanks!

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• Amazon EC2 instance was not available for few minutes (amazon showed that everything ok)

  - by Salvador Dali

  Few minutes ago my amazon Ec2 instance was unavailable for a few minutes. During this time neither I was able to connect to web-site with http, nor I was able to ssh to it. Also I was not able to connect to my amazon management console for some time (less than amount of unavailability of my instance). When I was able to connect to management console, it was showing me that everything is running smoothly (but I still was not able to connect to instance in any way for a minute or two). During this time I have checked their status page just to see that there is no issues (my instance is in Ireland and there is nothing wrong there today). After that I was able to log in. I checked my logins with last to see that no one except me was logging in. I also looked in apache logs and there was no errors or warnings during this time. Right now when I see my amazon monitor, I see a small spike in CPU in last 15 minutes (but this is from 10% to like 20%) I have no idea what can it be (I have never experienced anything like this before) and therefore I have no idea how scared should I be or what else should I look for. Can anyone give me a hint what my actions should be in such situation?

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• Apache2 random 403 error & info server busy logs on Ubuntu

  - by risyasin

  Hello, I have a strange situation with apache2. Meanless, random 403 errors. Any page (html, php etc.) normally working. but if i request repeatedly by pressing refresh button of browser. it interrupts & sends a 403 randomly. after a few seconds it works again. in the error log, i see client denied by server configuration. main error log of apache says [info] server seems busy, (you may need to increase StartServers, or Min/MaxSpareServers), spawning 8 children, there are 99 idle, and 137 total children my current values IfModule mpm_prefork_module StartServers 120 MinSpareServers 100 MaxSpareServers 200 MaxClients 256 MaxRequestsPerChild 500 /IfModule i've increased 10 by 10. from 20. but nothing solved. i've disabled KeepAlive. What may cause this problem ? thank you in advance. a fresh install Ubuntu server x86 8.04.4 Virtualmin from it's website (not from debian repositories). Linux 2.6.24-27-server #1 SMP i686 - Apache 2.2.8 Mpm prefork Virtualmin version 3.78.gpl GPL PHP Version 5.2.4-2ubuntu5.10 Loaded modules: core_module (static) log_config_module (static) logio_module (static) mpm_prefork_module (static) http_module (static) so_module (static) actions_module shared) alias_module (shared) auth_basic_module (shared) auth_digest_module (shared) uthn_file_module (shared) authz_default_module (shared) authz_groupfile_module (shared) uthz_host_module (shared) authz_user_module (shared) autoindex_module (shared) ache_module shared) cgi_module (shared) deflate_module (shared) dir_module (shared) env_module (shared) expires_module (shared) fcgid_module (shared) file_cache_module (shared) eaders_module (shared) mime_module (shared) mime_magic_module (shared) evasive20_module shared) negotiation_module (shared) php5_module (shared) rewrite_module (shared) etenvif_module (shared) ssl_module (shared) status_module (shared) Syntax OK

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• Dynamic nginx domain root path based on hostname?

  - by Xeoncross

  I am trying to setup my development nginx/PHP server with a basic master/catch-all vhost config so that I can created unlimited ___.framework.loc domains as needed. server { listen 80; index index.html index.htm index.php; # Test 1 server_name ~^(.+)\.frameworks\.loc$; set $file_path $1; root /var/www/frameworks/$file_path/public; include /etc/nginx/php.conf; } However, nginx responds with a 404 error for this setup. I know nginx and PHP are working and have permission because the localhost config I'm using works fine. server { listen 80 default; server_name localhost; root /var/www/localhost; index index.html index.htm index.php; include /etc/nginx/php.conf; } What should I be checking to find the problem? Here is a copy of that php.conf they are both loading. location / { try_files $uri $uri/ /index.php$is_args$args; } location ~ \.php$ { try_files $uri =404; include fastcgi_params; fastcgi_index index.php; # Keep these parameters for compatibility with old PHP scripts using them. fastcgi_param PATH_INFO $fastcgi_path_info; fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; # Some default config fastcgi_connect_timeout 20; fastcgi_send_timeout 180; fastcgi_read_timeout 180; fastcgi_buffer_size 128k; fastcgi_buffers 4 256k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on; fastcgi_ignore_client_abort off; fastcgi_pass 127.0.0.1:9000; }

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• "The directory name is invalid" when trying to install drivers in Windows 7 via Device Manager

  - by Luke

  First off, this computer is not mine, it's a customer's system. Having said that... The hard drive was moved to a new motherboard, CPU, RAM combo, and booted up fine. Customer puts in driver CD, drivers won't load. He brings it into me. Under Device Manager for Windows 7 x64, I see lots of PCI to PCI bridge, one SMBus Controller, and about 20 Unknown Devices. Greeeeeat... So I start with the SMBus driver directly from the Asus website for the motherboard (P8H77-M Pro). If I install from the setup program, it tells me to reboot, then it starts the install. It gets half way through the setup, then fails (An unknown error occurred. Setup will exit). When I try to point to the folder from Device Manager, it starts copying files for the driver, even presents me with the proper name of the device, but says that an error has occurred there as well: The directory name is invalid. Doing some Googling, I saw that many people had this issue with Vista. K, Vista and 7 are similar, maybe the solutions are the same... But they aren't. I tried: Copying the entire driver folder and setup utility to the Program Files folder and running it / selecting it in DM Downloading another set of drivers in case this one is corrupt Disabling UAC Deleting and recreating the %WINDIR%\TEMP folder Removing all references to previous hardware that I could find, even in Device Manager's hidden mode So far, nothing has worked. A wipe and reload will be out of the question

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• exim4 to relay emails

  - by Matthieu

  I have exim4 installed on a Linux box. The basics work fine and I can send email from that machine without any problem to whatever email address. I also have a printer/scanner which is capable to send scans as emails. It needs an SMTP gateway to be able to do that. So I give the IP address of that Linux box, changed the configuration a little bit but still cannot get it to work. After I run dpkg-reconfigure exim4-config, here is what I get in /etc/exim4/update-exim4.conf.conf : dc_eximconfig_configtype='internet' dc_other_hostnames='' dc_local_interfaces='127.0.0.1;192.168.2.2' dc_readhost='' dc_relay_domains='mycompanyemail.com' dc_minimaldns='false' dc_relay_nets='192.168.2.0/24' dc_smarthost='' CFILEMODE='644' dc_use_split_config='false' dc_hide_mailname='' dc_mailname_in_oh='true' dc_localdelivery='mail_spool' My problem is that with this configuration, I can only send to emails @mycompanyemail.com... It says I can use wildcard, but when I do that, the '*' is replaced by whatever filename is in the directory where I run all that. How can I configure it to be able to send emails with any domain ? Or am I doing it wrong ? EDIT : here is the part of the log that's causing trouble : 2011-08-03 16:28:18 H=(NPI2D389C) [192.168.2.20] F=<[email protected]> rejected RCPT <[email protected]>: relay not permitted The first part ([email protected]) does not matter. I changed the email address. The point is that if this email is @mycompanyemail.com then everything works fine. Anything else does not work. I could add gmail.com, but I am looking to have any domain working...

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• Excel file growing huge (>150 MB)

  - by Josh

  There is one particular Excel file that is used by a number of employees at my company. It is edited from both Excel 2003 and 2007, with the "Sharing" feature turned on to allow multiple writers at once. The file has a decent amount of data on several sheets with some basic formatting, and used to be about 6MB, which seems reasonable for its content. But after a few weeks of editing, the file grew to 10, then 20 MB, and eventually skyrocketed to more than 150 MB, even though it still has about the same amount of data as before. It now takes 5-10 minutes to open it, and that much time again to save it. The first time this happened, I copied the content of each sheet into a new, blank workbook, and saved the new workbook; this brought it back down to about 6MB. Now, it has blown up again. The workbook uses the "Data Validation" feature to limit the values in certain columns to the contents of a few named ranges. Copying all the data into a new workbook means re-setting up all the data validation, which is a pain and not something that we want to do every month. As a troubleshooting step, I tried saving the file in "XML Spreadsheet 2003" format, hoping to get some insight into what was being stored. Sure enough, the file was almost a gig, and almost all of the 10 million lines look like this: <NamedCell ss:Name="Z_21D5114F_E50C_46AC_AA4F_C3FF540C717F_.wvu.FilterData"/> <NamedCell ss:Name="Z_1EE2BA5E_3011_4F9A_8ACD_E58835250FC4_.wvu.FilterData"/> <NamedCell ss:Name="Z_1E3BDCEA_6A72_4ECC_BF4F_7B03CC66181E_.wvu.FilterData"/> I've seen a few VBScripts online to manage and enumerate named cells that are hidden in Excel's built-in interface, though I wonder how they'd handle my 10 million named cells. What I really need, though, is an understanding of why this keeps happening. What actions in excel could be causing this?

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• LSI 9260-8i w/ 6 256gb SSDs - RAID 5, 6, 10, or bad idea overall?

  - by Michael Pearson

  We're provisioning a new production server for our reasonably busy website. Our choice of host have available a 6 drive configuration with a LSI 9260-8i card. My initial thought was to fill all six bays with SSDs (Intel 520 256gb) and set them up in RAID. Good, bad, or terrible idea? Can the card handle it? Should we be using RAID 5, 6 or 10? This would be the first time the provider have filled all six slots for this rackmount with SSDs, so they're a bit hesitant. I'm wondering if somebody else with this card has done something similar in a production environment. We do about 43gb of writes per day and currently use about 300gb of storage. The server acts as webserver, database, and image store for approx 1 million files. The plan is to underprovision the SSDs by approximately 10% to 20% to increase their overall lifespan & performance. The fallback option is 2x480gb SSDs in RAID 1 and another 2x1TB HDDs in RAID 1. The motivation behind this is that the server rental cost difference between 2xSSDs and 6xSSDs is minimal (compared to the overall cost of the rental). We do not have any special high-IOPs requirements. However, if the configuration is known to work, I don't see a good reason to not use it and not have to worry about having separate 'fast and small' and 'slow and large' disks.

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• Unix VPS server going down at almost the same time every day

  - by ronnz

  My server load seems to be really spiking and many times the server goes down at the same time each night (Around midnight). I have about 20 cPanel accounts hosted on it and have tried everything I know to try to find what is causing the issue. Some of the things I have tried: Combined all site access logs found in /etc/httpd/domlogs and cannot see anything unusual at the time of server going down. Checked most other logs in the var/log directory and found nothing indicating the issue at the time the server is going down. Checked cron logs and cannot see anything unusual.. See below. Last night CPU spiked to 7.5 at 00:14. What else can I be checking? How can I really monitor to find out the root cause? Dec 8 00:05:01 v1 crond[6082]: (root) CMD (/usr/local/cpanel/bin/dcpumon /dev/null 2&1) Dec 8 00:05:01 v1 crond[6084]: (root) CMD (/usr/local/cpanel/whostmgr/bin/dnsqueue /dev/null 2&1) Dec 8 00:10:01 v1 crond[6435]: (root) CMD (/usr/lib64/sa/sa1 1 1) Dec 8 00:10:01 v1 crond[6436]: (root) CMD (/usr/local/cpanel/bin/dcpumon /dev/null 2&1) Dec 8 00:15:12 v1 crond[6775]: (root) CMD (/usr/local/cpanel/scripts/autorepair recoverymgmt /dev/null 2&1) Dec 8 00:15:12 v1 crond[6776]: (root) CMD (/usr/local/cpanel/scripts/recoverymgmt /dev/null 2&1) Dec 8 00:15:12 v1 crond[6777]: (root) CMD (/usr/local/cpanel/bin/dbindex /dev/null 2&1) Dec 8 00:15:12 v1 crond[6781]: (root) CMD (/usr/local/cpanel/bin/dcpumon /dev/null 2&1) Dec 8 00:20:33 v1 crond[7047]: (root) CMD (/usr/lib64/sa/sa1 1 1)

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• Split Tunnel VPN using incorrect Tunnel

  - by Brian Schmeltz

  Our company has a handful of field offices that have recently been setup with a regular internet connection after we removed the T1 and router that connected them directly to our network. Now, when the users are in the office, they log in to the VPN to be able to connect to the network. For the sake of them being able to print and scan from the local multi-function we have setup a split tunnel VPN. We currently have about 15-20 users using this setup around the country without any problems. Recently one of our users started having problems accessing internal programs/sites when connecting from both home and the office. There are three other users in the same office and they do not have this problem. I assumed that it was something with the computer and went ahead and replaced it with another of the same model. The computer worked fine in our home office; however, when the user received it, she had the exact same problem both at home and in the field office. Thinking it may be a NIC driver issue I sent her another computer, this time a different model, same problem occurred. If I update the host file to point to the correct paths, things will work, and if I connect via a normal VPN connection everything works, but the user cannot scan or print - which is a problem. Have tried to find ways to create another tunnel on a normal VPN and have tried to find ways to force the correct tunnel on the split tunnel VPN. It appears that there is something related to the ISP because if I connect to Comcast or Verizon it is fine but once she connects to Insite then she has problems. I have been unable to get any support from Insite as they don't feel the issue is with them. We use a Nortel VPN client. Any thoughts or ideas would be appreciated.

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• Chipset fan on the frtiz - compressed air hasn't fixed anything - is there anything I can do?

  - by Anthony

  Yesterday, my computer started to make an annoying whining noise. Knowing that this is likely a fan issue, I opened the case and proceeded to determine which fan was causing the issue. I got some compressed air and tried cleaning out the dust around it (and the rest of the computer while I was at it). This hasn't seemed to fix the issue. Now, if it were just any fan, I would probably just replace the fan - they're relatively cheap after all. However, this is a special fan. Aside: For what its worth, I feel bad that the graphics card blocks part of the fan, but it is the only slot the graphics card fits, so I had no choice. After pulling out my motherboard user guide, it looks like this is a fan placed directly on top of the chipset. To be perfectly honest, I have no clue what the purpose of the chipset is - but it sounds important. After some quick research, I see that it is responsible for providing the bridge between my CPU, RAM and graphics, among other things. Just a quick search at Newegg tells me that chipset fans can be purchased at pretty reasonable prices (< 20 dollars). Is it practical to replace this fan? It is an old computer as computers go and I wouldn't be terribly upset to upgrade the motherboard and processor, so perhaps this is a sign. Hardware Specs: Motherboard: Asus A8N-E Chipset: NVIDIA nForce4 Ultra

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• Is this memory compatible with this motherboard???

  - by ClarkeyBoy

  Hi, I have a Foxconn P35AP-S as seen here. I need to get some more RAM since I only have 1 2GB stick. The current one is 1066MHz. I would like to get the memory situated here: www.scan.co.uk/Products/6GB-(3x2GB)-Corsair-XMS3-Classic-DDR3-PC3-10666-(1333)-Non-ECC-Unbuffered-CAS-7-7-7-20-165V memory. It is 6GB of Corair 1333MHz memory. According to the motherboard website it is able to take 1333MHz, but it says oc** next to it (which means achieved when overclocked). So my question is: are they still compatible without overclocking, or does the motherboard require overclocking to be compatible? If it requires overclocking (which I have no idea how to do) can anyone recommend any other memory (in the region of 6GB) which the motherboard is compatible with? I'd rather it were from Scan, but to be honest it doesnt need to be. Many thanks in advance. Regards, Richard Edit: I just realised that the motherboard has a maximum capacity of 4GB of RAM. Scrap the RAM given above, I'd like to go for something like that but only 4GB. Edit: Scrap that last edit - its only if I go for DDR3 that I need to take this into account. DDR2 is a maximum of 8GB.

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• SpamAssassin bayesian score discrepancies

  - by CaptSaltyJack

  This makes my brain hurt. For some reason, SpamAssassin is giving high scores to certain emails, but when I test them on the command line, they get a low score. This one particular email has this in the header: X-Spam-Flag: YES X-Spam-Score: 8.521 X-Spam-Level: ******** X-Spam-Status: Yes, score=8.521 tagged_above=-9999 required=5 tests=[BAYES_99=3.5, BAYES_999=0.2, HTML_MESSAGE=0.001, NO_RECEIVED=-0.001, NO_RELAYS=-0.001, RAZOR2_CF_RANGE_51_100=0.5, RAZOR2_CF_RANGE_E8_51_100=1.886, RAZOR2_CHECK=0.922, URIBL_RHS_DOB=1.514] autolearn=no Yet when I dump the raw email into a file msg and run sudo su amavis -c 'spamassassin -t msg', I get this output: Content analysis details: (3.8 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 1.5 URIBL_RHS_DOB Contains an URI of a new domain (Day Old Bread) [URIs: cliobeads.com] -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP 0.0 HTML_MESSAGE BODY: HTML included in message -0.0 BAYES_20 BODY: Bayes spam probability is 5 to 20% [score: 0.1855] 1.9 RAZOR2_CF_RANGE_E8_51_100 Razor2 gives engine 8 confidence level above 50% [cf: 100] 0.5 RAZOR2_CF_RANGE_51_100 Razor2 gives confidence level above 50% [cf: 100] 0.9 RAZOR2_CHECK Listed in Razor2 (http://razor.sf.net/) I'm really confused as to why when the email comes in, it gets a completely different score attached to it than when I run spamassassin -t. Is there some other way I should be testing emails? Also, my users have the ability to drag false positives into a folder called "False Positives," and every day a cron job fires off that runs this on every message in every user's folder: sa-learn --dbpath=/var/lib/amavis/.spamassassin --ham /tmp/*-*.eml >/dev/null I ran sudo locate bayes_toks and there's definitely only one bayes DB on the system, in /var/lib/amavis/.spamassassin. I'm clueless, any help would be great and may help restore my sanity!

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• 32 core (each physical core) 2.2 GhZ or 12 core (6 physical cores) 3.0GHZ?

  - by Tejaswi Rana

  I am working on a multithreaded application (Forex trading app built on C#) and had the client upgrade from the 12 core 3.0GHZ machine (Intel) to a 32 core 2.2 Ghz machine (AMD). The PassMark benchmark results were significantly higher when using multicores doing Integer, Floating and other calculations while for a single core calculation it was a bit slower than the pack (others that were being compared to with similar config as the 12 core one). Oh it also comes with 64 GB RAM (4 times as the other one) and a much faster SSD. So after configuring and running the application on that machine, not only did it not perform as well, it was significantly slower. We're talking about 30seconds - 1 minute slower on an app that usually completes processing within 5-20 secs. The application uses MAX DEGREE of PARALLELISM (TPL) which I've tried setting to number of cores and also half of that. I've also tried running single threaded and without setting any limits in parallel threading. While it may be the hardware has some issues, I am wondering if the CPU processing speed is the issue. I can overclock to 3.0 GHZ. But is that even a good idea? Server Info - AMD http://www.passmark.com/forum/showthread.php?4013-AMD-Dual-6272-performance-is-60-lower-than-benchmarks Seems that benchmark was wrong to start with - officially. Intel i7 3930k OS (same in both) Windows 7 Professional 64-bit

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• Identifying and Resolving Oracle ITL Deadlock

  - by Allan

  I have an Oracle DB package that is routinely causing what I believe is an ITL (Interested Transaction List) deadlock. The relevant portion of a trace file is below. Deadlock graph: ---------Blocker(s)-------- ---------Waiter(s)--------- Resource Name process session holds waits process session holds waits TM-0000cb52-00000000 22 131 S 23 143 SS TM-0000ceec-00000000 23 143 SX 32 138 SX SSX TM-0000cb52-00000000 30 138 SX 22 131 S session 131: DID 0001-0016-00000D1C session 143: DID 0001-0017-000055D5 session 143: DID 0001-0017-000055D5 session 138: DID 0001-001E-000067A0 session 138: DID 0001-001E-000067A0 session 131: DID 0001-0016-00000D1C Rows waited on: Session 143: no row Session 138: no row Session 131: no row There are no bit-map indexes on this table, so that's not the cause. As far as I can tell, the lack of "Rows waited on" plus the "S" in the Waiter waits column likely indicates that this is an ITL deadlock. Also, the table is written to quite often (roughly 8 insert or updates concurrently, as often as 240 times a minute), so and ITL deadlock seems like a strong possibility. I've increased the INITRANS parameter of the table and it's indexes to 100 and increased the PCT_FREE on the table from 10 to 20 (then rebuilt the indexes), but the deadlocks are still occurring. The deadlock seems to happen most often during an update, but that could just be a coincidence, as I've only traced it a couple of times. My questions are two-fold: 1) Is this actually an ITL deadlock? 2) If it is an ITL deadlock, what else can be done to avoid it? Cross-posted from Stack Overflow. Deadlocks are normally a programming problem, but ITL deadlocks relate directly to how Oracle writes to disk, so this may be an area where DBAs have more experience.

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• Apache logging issues

  - by Dan

  I'm trying to parse apache log files, but I'm finding some strange results and I'm not sure what they mean. Hopefully someone can provide some insight. (all of the IP addresses were altered. none actually start with 192, I didn't figure the search engines mattered though.) In the first example, multiple ip addresses are showing up in the host field: 192.249.71.25 - - [04/Aug/2009:04:21:44 -0500] "GET /publications/example.pdf HTTP/1.1" 200 2738 192.0.100.93, 192.20.31.86 - - [04/Aug/2009:04:21:22 -0500] "GET /docs/another.pdf HTTP/1.0" 206 371469 What causes this? Does it have to do with proxy servers? Is there a way to have Apache only log one? In the second example, a bunch of information is just completely missing! What would cause this? msnbot-65-55-207-50.search.msn.com - - [29/Dec/2009:15:45:16 -0600] "GET /publications/example.pdf HTTP/1.1" 200 3470073 "-" "msnbot/2.0b (+http://search.msn.com/msnbot.htm)" 266 3476792 - - - - "-" - - "-" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; InfoPath.1)" 285 594 - - - - "-" - - "-" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; InfoPath.1)" 285 4195 - - - - "-" - - "-" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; InfoPath.1)" 299 109218 crawl-17c.cuil.com - - [29/Dec/2009:15:45:46 -0600] "GET /publications/another.pdf HTTP/1.0" 200 101481 "-" "Mozilla/5.0 (Twiceler-0.9 http://www.cuil.com/twiceler/robot.html)" 253 101704 My CustomLog configuration says: LogFormat "%h %l %u %t \"%r\" %s %b \"%{Referer}i\" \"%{User-agent}i\" %I %O" common

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• Computer causing WiFi interference?

  - by Mannimarco

  I came back from college and brought my desktop computer. Family recently switched to Verizon FIOS and got a new router because of it. Unfortunately, my connection to the new wifi network is awful, with the download speeds (tested through speedtest.net) fluctuating wildly and often dropping below 1.5 Mbps. A laptop in the same room gets 20 Mbps. I've tried a new wireless card, thinking that mine got damaged in the move home but no luck. Here's where it gets weird: if I place the laptop near the computer, the laptop's download speeds often suffer greatly. Pulling the laptop away always fixes this. So now I'm under the impression that there's something in the computer (which I built a year ago and has had 0 issues up to this point) is causing an insane amount of wireless interference. Also bizarre: the upload speeds seem unaffected by this problem. On the laptop and desktop, upload speeds are generally around 5 Mpbs. Any ideas as to what could be causing this and how to test said theories would be fantastic.

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• Google.com always forward me to google.com.hk

  - by Ta Coen

  Any one could help me to figure out why Google.com always forward me to google.com.hk? $ dig google.com www.google.com. 509426 IN CNAME www.l.google.com. www.l.google.com. 100 IN A 74.125.71.147 www.l.google.com. 100 IN A 74.125.71.99 www.l.google.com. 100 IN A 74.125.71.105 www.l.google.com. 100 IN A 74.125.71.106 www.l.google.com. 100 IN A 74.125.71.104 www.l.google.com. 100 IN A 74.125.71.103 and $ dig google.com.hk www.google.com.hk. 261572 IN CNAME www.google.com. www.google.com. 589217 IN CNAME www.l.google.com. www.l.google.com. 139 IN A 74.125.235.17 www.l.google.com. 139 IN A 74.125.235.18 www.l.google.com. 139 IN A 74.125.235.19 www.l.google.com. 139 IN A 74.125.235.20 www.l.google.com. 139 IN A 74.125.235.16 How to make my network always goes to google.com?

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• Split Tunnel VPN using incorrect Tunnel

  - by Brian Schmeltz

  Our company has a handful of field offices that have recently been setup with a regular internet connection after we removed the T1 and router that connected them directly to our network. Now, when the users are in the office, they log in to the VPN to be able to connect to the network. For the sake of them being able to print and scan from the local multi-function we have setup a split tunnel VPN. We currently have about 15-20 users using this setup around the country without any problems. Recently one of our users started having problems accessing internal programs/sites when connecting from both home and the office. There are three other users in the same office and they do not have this problem. I assumed that it was something with the computer and went ahead and replaced it with another of the same model. The computer worked fine in our home office; however, when the user received it, she had the exact same problem both at home and in the field office. Thinking it may be a NIC driver issue I sent her another computer, this time a different model, same problem occurred. If I update the host file to point to the correct paths, things will work, and if I connect via a normal VPN connection everything works, but the user cannot scan or print - which is a problem. Have tried to find ways to create another tunnel on a normal VPN and have tried to find ways to force the correct tunnel on the split tunnel VPN. It appears that there is something related to the ISP because if I connect to Comcast or Verizon it is fine but once she connects to Insite then she has problems. I have been unable to get any support from Insite as they don't feel the issue is with them. We use a Nortel VPN client. Any thoughts or ideas would be appreciated.

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• Disk IO slow on ESXi, even slower on a VM (freeNAS + iSCSI)

  - by varesa

  I have a server with ESXi 5 and iSCSI attached network storage(4x1Tb Raid-Z on freenas 8.0.4). Those two machines are connected to each other with Gigabit ethernet. The raid-z volume is divided into three parts: two zvols, shared with iscsi, and one directly on top of zfs, shared with nfs and similar. I ssh'd into the freeNAS box, and did some testing on the disks. I used ddto test the third part of the disks (straight on top of ZFS). I copied a 4GB (2x the amount of RAM) block from /dev/zero to the disk, and the speed was 80MB/s. Other of the iSCSI shared zvols is a datastore for the ESXi. I did similar test with time dd .. there. Since the dd there did not give the speed, I divided the amount of data transfered by the time show by time. The result was around 30-40 MB/s. Thats about half of the speed from the freeNAS host! Then I tested the IO on a VM running on the same ESXi host. The VM was a light CentOS 6.0 machine, which was not really doing anything else at that time. There were no other VMs running on the server at the time, and the other two "parts" of the disk array were not used. A similar dd test gave me result of about 15-20 MB/s. That is again about half of the result on a lower level! Of course the is some overhead in raid-z - zfs - zvolume - iSCSI - VMFS - VM, but I don't expect it to be that big. I belive there must be something wrong in my system. I have heard about bad performance of freeNAS's iSCSI, is that it? I have not managed to get any other "big" SAN OS to run on the box (NexentaSTOR, openfiler). Can you see any obvious problems with my setup?

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