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  • Gittornado with Nginx fails to push and pull

    - by Josh Buell
    I'm making a simple website to host git repositories, much like github. I'm using Gittornado to handle git Smart HTTP requests, and it works perfectly locally; I can clone, push, pull, etc... But when I put it behind Nginx, git commands stop working, giving no errors except: "fatal: The remote end hung up unexpectedly" I know that it's Nginx that's causing the trouble because if I open the port that tornado is running on and try my git commands through that (i.e. "git pull \http://mysite.com:8000/myrepository master" instead of "git pull \http://mysite.com/myrepository master" [backslashes added because Server Fault says I have too many links]) everything works as expected. The Nginx access and error logs don't seem to say anything interesting, so I'm reasonably sure that it has something to do with the way Nginx is compressing or chunking the requests/responses, causing git to think there's been an unexpected hangup, but I'm not sure what to do to fix it, since this is my first time with Nginx. My Nginx configuration file is basically a clone of the on found here; I've tried commenting out various likely-seeming options to see if they were causing the problem, but none of them fixed it so I assume there's some default behavior I need to suppress, I'm just not sure which. Any thoughts on how to fix this? Since it works not through Nginx, I'm considering just redirecting git requests to the tornado port itself, but this feels like a hack rather than a clean solution...

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  • Cisco SA520 to Adtran 1234 no DHCP transfer

    - by Grico
    I am trying to set up a Cisco SA520 to run DHCP on my network. I have a vendor provided switch, the Adtran 1234, and it provides DHCP for our phone systems on VLAN 200. I do not have access to the Adtran, but the vendor gave me a IP on port 1 for WAN and said port 2 should be for the "trust" side should go. I did setup a mini lab where, Adtran 1 went to SA520 WAN port, and SA520 trust 1 went to my laptop. Everything worked fine, I could ping and get internet using the DHCP scope I put on the SA520. I then unplugged my computer from SA520 trust 1 and plugged it into Adtran 2. I plugged my computer into Adtran 23 and I dont get DHCP or even a link light. If I restart my machine, I get a brief link and then it dies once the machine boots. I have tried several ports on the Adtran and none seem to work. Different cables as well. However, when I plug a phone into the Adtran, the phone boot immediately and shows link. Thoughts?

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  • Need help tuning Mysql and linux server

    - by Newtonx
    We have multi-user application (like MailChimp,Constant Contact) . Each of our customers has it's own contact's list (from 5 to 100.000 contacts). Everything is stored in one BIG database (currently 25G). Since we released our product we have the following data history. 5 years of data history : - users/customers (200+) - contacts (40 million records) - campaigns - campaign_deliveries (73.843.764 records) - campaign_queue ( 8 millions currently ) As we get more users and table records increase our system/web app is getting slower and slower . Some queries takes too long to execute . SCHEMA Table contacts --------------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------------+------------------+------+-----+---------+----------------+ | contact_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | client_id | int(10) unsigned | YES | | NULL | | | name | varchar(60) | YES | | NULL | | | mail | varchar(60) | YES | MUL | NULL | | | verified | int(1) | YES | | 0 | | | owner | int(10) unsigned | NO | MUL | 0 | | | date_created | date | YES | MUL | NULL | | | geolocation | varchar(100) | YES | | NULL | | | ip | varchar(20) | YES | MUL | NULL | | +---------------------+------------------+------+-----+---------+----------------+ Table campaign_deliveries +---------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------+------------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | newsletter_id | int(10) unsigned | NO | MUL | 0 | | | contact_id | int(10) unsigned | NO | MUL | 0 | | | sent_date | date | YES | MUL | NULL | | | sent_time | time | YES | MUL | NULL | | | smtp_server | varchar(20) | YES | | NULL | | | owner | int(5) | YES | MUL | NULL | | | ip | varchar(20) | YES | MUL | NULL | | +---------------+------------------+------+-----+---------+----------------+ Table campaign_queue +---------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------+------------------+------+-----+---------+----------------+ | queue_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | newsletter_id | int(10) unsigned | NO | MUL | 0 | | | owner | int(10) unsigned | NO | MUL | 0 | | | date_to_send | date | YES | | NULL | | | contact_id | int(11) | NO | MUL | NULL | | | date_created | date | YES | | NULL | | +---------------+------------------+------+-----+---------+----------------+ Slow queries LOG -------------------------------------------- Query_time: 350 Lock_time: 1 Rows_sent: 1 Rows_examined: 971004 SELECT COUNT(*) as total FROM contacts WHERE (contacts.owner = 70 AND contacts.verified = 1); Query_time: 235 Lock_time: 1 Rows_sent: 1 Rows_examined: 4455209 SELECT COUNT(*) as total FROM contacts WHERE (contacts.owner = 2); How can we optimize it ? Queries should take no more than 30 secs to execute? Can we optimize it and keep all data in one BIG database or should we change app's structure and set one single database to each user ? Thanks

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  • Mountain Lion overheating issue have to do with launchd/Python?

    - by Christopher Jones
    So, Ever since I installed ML, my MacBook Air has been running SUPER hot. Opened up activity monitor, and everything seemed to be pretty normal, until I had it refresh every .5 seconds... and then I started seeing some interesting things. A 'Python' process appears and is terminated several times a second, and uses TONS of CPU 70-110. It's parent process is 'launchd' - and when I sample the process, there is a lot going on with Python. http://db.tt/ovuX3hZM These appear and disappear too quickly to get one... this one only happened to be using 70 ish percent of CPU... but they consistently hit 100-110%. http://db.tt/ovuX3hZMg The parent process... launchd. lots of context switches and UNIX system calls... What is the deal here? (photo goes here when I earn the street cred) The sample of launchd. ANY help here could be of help to not only me, but possibly many others experiencing decreased battery life and warmer laps these days because of this Mountain Lion weirdness. PLEASE HELP! PS - I'd put the screen grabs inline, but i don't have enough street cred yet.

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  • AjaxControlToolkit JavaScript is not pointing correctly on IIS7 running behind Apache mod_proxy

    - by sohum
    So here's my setup. I've got a DynDNS account since I have a dynamic IP. I have Apache listening on port 80 and IIS7 on port 8080. I don't want users to have to enter in mydyndns.dyndns.com:8080 to get to IIS7, so I've added the following code to my Apache httpd.conf file to enable a proxy/reverse proxy: <VirtualHost *:80> ProxyPass / http://localhost:8080/myASPSite/ ProxyPassReverse / http://localhost:8080/myASPSite/ ServerName myaspsite.mydomain.com </VirtualHost> I've got a CNAME record set up on my DNS so that myaspsite.mydomain.com redirects to mydyndns.dyndns.com. When I type in myaspsite.mydomain.com into my browser, everything works beautifully... mostly. IIS7 serves up the ASPX pages and visitors to the site don't know any better. A problem arises, however, when I add Ajax Control Toolkit controls into my ASPX website, because these generate JavaScript and apparently mod_proxy_html isn't geared to handle the JS URIs properly. Sure enough, when I open up the source of my ASPX page, it has script elements as follows: <script src="/myASPSite/WebResource.axd?xyz" type="text/javascript"></script> <script src="/myASPSite/ScriptResource.axd?xyz" type="text/javascript"></script> Sure enough, these scripts are attempting to be resolved at http://myaspsite.mydomain.com/myASPSite/WebResource..., which through the proxy translates to localhost:8080/myASPSite/myASPSite/.... How can I solve this problem. The couple of websites I found suggested turning on ProxyHTMLExtended but when I tried doing that, the server did not start. I'm guessing I didn't know how to do it properly. Anyone has a handy couple of config lines that I can add to my Apache conf file to get this working as I need? I'm using Apache 2.2.11. Thanks!

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  • Can I run a mix of static addressing and NAT?

    - by aroth
    Let's say that an ISP offers a plan with 5 static IP addresses, but I have more than 5 devices, many of which (such as a networked printer, for instance) I do not want or need to have a static IP address. So the topography I'm planning goes something like: ISP -> Router -> Switch -> Computer (static address) -> Computer (static address) -> Printer (DHCP/NAT) -> Tv (DHCP/NAT) -> (...) -> Wireless Devices (DHCP/NAT) Generally speaking, is it possible to run a network like that? If not, then what sort of setup do I need so that I can assign static addresses just to the things that need them, and use DHCP/NAT for everything else? Also, what internal networking devices will consume a static IP address? I'm pretty sure the router will, correct? Does the switch also?

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  • Postfix not sending email after upgrading to Ubuntu 12.04

    - by Luke
    After upgrading a server from Ubuntu 10.04 to 12.04, postfix is no longer sending email through sendgrid.com. I followed this guide about 6 months ago and everything had been working perfectly until the upgrade. Now it doesn't seem to be authenticating with sendgrid. This is the error I get in my syslog when I try to send an email. May 22 10:19:55 server postfix/smtp[3844]: 983B11C5DA: to=<to address>, relay=smtp.sendgrid.net[174.36.32.204]:587, delay=0.05, delays=0.01/0/0.04/0, dsn=5.0.0, status=bounced (host smtp.sendgrid.net[174.36.32.204] said: 550 Cannot receive from specified address <sendgrid username>: Unauthenticated senders not allowed (in reply to MAIL FROM command)) This is from postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no broken_sasl_auth_clients = no config_directory = /etc/postfix header_size_limit = 4096000 inet_interfaces = loopback-only mailbox_size_limit = 0 mydestination = localhost, mylinode.members.linode.com myhostname = hostname mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 readme_directory = no recipient_delimiter = + relayhost = [smtp.sendgrid.net]:587 smtp_sasl_auth_enable = yes smtp_sasl_mechanism_filter = login smtp_sasl_password_maps = hash:/etc/postfix/sasl/sendgrid smtp_sasl_security_options = noanonymous smtp_tls_security_level = may smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes Any help would be greatly appreciated. I would be happy to post any other logs or other relevant information.

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  • Can't Login to phpPgAdmin

    - by Devin
    I'm trying to set up phpPgAdmin on my test machine so that I can interface with PostgreSQL without always having to use the psql CLI. I have PostgreSQL 9.1 installed via the RPM repository, while I installed phpPgAdmin 5.0.4 "manually" (by extracting the archive from the phpPgAdmin website). For the record, my host OS is CentOS 6.2. I made the following configuration changes already: PostgreSQL Inside pg_hba.conf, I changed all METHODs to md5. I gave the postgres account a password I added a new account named webuser with a password (note that I did not do anything else to the account, so I can't exactly say that I know what permissions it has and all) phpPgAdmin config.inc.php Changed the line $conf['servers'][0]['host'] = ''; to $conf['servers'][0]['host'] = '127.0.0.1'; (I've also tried using localhost as the value there). Set $conf['extra_login_security'] to false. Whenever I try to log in to phpPgAdmin, I get "Login failed", even if I use successful credentials (ones that work in psql). I've tried to go through some of the steps noted in Question 3 in the FAQ, but it hasn't worked out well so far there. It likely does not help that this is my first day working with PostgreSQL. I'm farily familiar with MySQL, but I have to use PostgreSQL for the project I'm working on. Could anyone offer some help for how to set up phpPgAdmin on CentOS 6.2? If I've done something terribly wrong in my configuration so far, it's no big deal to blow something/everything away, as it's not like I've stored any data there yet! I appreciate any insight you may have!

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  • Enabling Samba Shares Across Subnets

    - by John
    I was curious how I could go about setting up SAMBA so that shares could be seen and used across different subnets. We have some Linux devices that are bound to Active Directory and we would like to have them serve SAMBA shares to clients that will reside in a different subnet than what the servers reside in? Is there any way to do this without needing to setup a WINS server or use legacy NetBIOS methods since the majority of our clients are Windows 7, Windows Server 2003, Windows Server 2008, and Macintosh OS X (10.6 or newer)? EDIT Right now, only clients in the same subnet as the SAMBA server can see the shares. Clients outside of the subnet (i.e. the client subnet) cannot see or connect to the share. The error returned is: The specified network name is no longer available. It does not seem to matter if I use IP, FQDN, or NetBIOS name to try and connect to the share with. We have a common Cisco router handling the inter-subnet routing. Everything else seems to work correctly with this network setup and the device can be pinged from multiple subnets. I also do not believe it to be a firewall type of issue since the rules for this segment are rather lax.

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  • Tooltips shadow stuck on desktop

    - by faulty
    I tends to get this problem from time to time. The tooltips with a shadow appearing on top of everything. It's the shadow of the tooltips not disappearing after the tooltips disappear. The last one I had the tooltips was from the wifi connection list at the systray. This problem also happen to me on another computer. Both running Win7 with ATI gpu. I found this similar post Menu command stuck on screen but none of the solution helped. In fact the "Fade or slide tooltips into view" has been unchecked from the beginning. Ending task of "dwm.exe" also doesn't help. So far the only way to resolve this by restarting window. I can't post picture yet, so can't show any screenshot. Edit: Just tested a few more trick which doesn't work. 1. Turn of aero 2. Hibernate 3. Switch main display to external display and switch back. 4. Change resolution

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  • When importing an Access table into Excel, a look-up column is showing all values as numbers

    - by user3651997
    I have a basic Access to Excel question that has me frustrated. I have two Access 2010 data tables. One is a list of managers. The primary key is a manager ID (which is an autonumber because managers can have the same name), and each row also has manager name, manager email, etc. The second data table is a list of departments. The primary key for each row is a unique department code, and the foreign key is a manager ID (autonumber). I used the Look-up Wizard to create this connection. However, Access does not show the manager ID in the foreign key location. It shows Manager Name like I requested when I used the Look-up Wizard. Now I am trying to import the second table (departments) into Excel 2010. I clicked import from Access, chose the Department table, and everything popped into Excel. BUT, the Manager Name column is showing Manager ID instead. So I have a list of numbers instead of names. How can I make Excel show what I see in Access? Thanks!

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  • special case ssh connection lag

    - by Hersheezy
    Setup We have a DMZ and LAN in our office that are connected to the outside with the following setup: +------+ | |------> LAN (normal office router) |Modem | | |------> DMZ (a single machine) +------+ Our internet account is with Comcast and we have 5 status IPs, one of which points to the single machine in the DMZ. Problem ssh connections initiated ANYWHERE EXCEPT the office LAN are really fast. However, from the LAN, there is about a 5 second delay. WTF?? Extra info The DMZ machine is debian 5. Executing a wget to the DMZ has no lag. When executing the following, everything up to HERE IS WHERE THE LAG IS INCURRED executes immediately. ssh -vvvv [email protected] ... debug2: set_newkeys: mode 1 debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug3: Wrote 16 bytes for a total of 1015 debug2: set_newkeys: mode 0 debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug3: Wrote 48 bytes for a total of 1063 debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug2: key: /home/shopkins/.ssh/id_rsa (0x22440830) debug2: key: /home/shopkins/.ssh/identity ((nil)) debug2: key: /home/shopkins/.ssh/id_dsa ((nil)) debug3: Wrote 64 bytes for a total of 1127` HERE IS WHERE THE LAG IS INCURRED debug1: Authentications that can continue: publickey,password debug3: start over, passed a different list publickey,password debug3: preferred gssapi-keyex,gssapi-with-mic,gssapi,publickey,keyboard-interactive,password debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Offering public key: /home/shopkins/.ssh/id_rsa debug3: send_pubkey_test debug2: we sent a publickey packet, wait for reply debug3: Wrote 368 bytes for a total of 1495 debug1: Authentications that can continue: publickey,password debug1: Trying private key: /home/shopkins/.ssh/identity debug3: no such identity: /home/shopkins/.ssh/identity debug1: Trying private key: /home/shopkins/.ssh/id_dsa debug3: no such identity: /home/shopkins/.ssh/id_dsa debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: ,password debug3: authmethod_is_enabled password debug1: Next authentication method: password [email protected]'s password:

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  • 1000Base-X layer 2/MAC address details

    - by user69971
    A layer 2 Ethernet frame is sent with a source and destination MAC address. Given a 100Base-TX (copper) trunk between two Cisco switches, I can do a "show interface fa 0/0" on S1 to see the MAC address assigned to the trunking interface, then go to Switch2 and do a "show mac address-table" and find the MAC address of the S1 fa 0/0 interface as a dynamically learned MAC in the table. Given a similar setup with a 1000Base-X (fiber GBIC) trunk, the MAC address shown in "show interface gi 0/0" on S1 does not show up in the MAC address-table of S2. Everything I can find online indicates that 1000Base-X uses largely the same layer 2 format as copper connections. There's some slight alterations - minimum frame size is slightly larger - but the fundamentals of the frame structure appear to be the same, including transmission with a source and destination L2 address. Why doesn't the address of gi 0/0 show up in the MAC address table of the connection switch? The only thing which seems to make sense would be that the GBIC has its own MAC address, almost as if its acting as a mini 2-port switch or hub, with the switch-assigned MAC address showing up on the interface connection and a different MAC address assigned to the fiber side. If this is the case, is there any way to see the GBIC MAC address on the switch? (I've tried to look up the details in IEEE 802.3z but it doesn't seem to be available without an IEEE membership or purchasing the standard. I find the base 802.3 PDFs for download, but not 802.3z.)

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  • Forward all traffic through an ssh tunnel

    - by Eamorr
    I hope someone can follow this and I'll explain as best I can. I'm trying to forward all traffic from port 6999 on x.x.x.224, through an ssh tunnel, and onto port 7000 on x.x.x.218. Here is some ASCII art: |browser|-----|Squid on x.x.x.224|------|ssh tunnel|------<satellite link>-----|Squid on x.x.x.218|-----|www| 3128 6999 7000 80 When I remove the ssh tunnel, everything works fine. The idea is to turn off encryption on the ssh tunnel (to save bandwidth) and turn on maximum compression (to save more bandwidth). This is because it's a satellite link. Here's the ssh tunnel I've been using: ssh -C -f -C -o CompressionLevel=9 -o Cipher=none [email protected] -L 7000:172.16.1.224:6999 -N The trouble is, I don't know how to get data from Squid on x.x.x.224 into the ssh tunnel? Am I going about this the wrong way? Should I create an ssh tunnel on x.x.x.218? I use iptables to stop squid on x.x.x.224 from reading port 80, but to feed from port 6999 instead (i.e. via the ssh tunnel). Do I need another iptables rule? Any comments greatly appreciated. Many thanks in advance,

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  • Does Windows XP automatically reassemble UDP fragments?

    - by Matt Davis
    I've got a Windows application that receives and processes XML messages transmitted via UDP. The application collects the data using Windows "raw" sockets, so the entire layer 3 packet is visible. We've recently run across a problem that has me stumped. If the XML messages (i.e., UDP packets) are large (i.e., 1500 bytes), they get fragmented as expected. Ordinarily, this will cause the XML processor to fail because it attempts to process each UDP packet as if it is a complete XML message. This is a known short-coming in the system at this stage of its development. On Windows 7, this is exactly what happens. The fragments are received and logged, but no processing occurs. On Windows XP, however, the same fragments are seen, and the XML processor seems to handle everything just fine. Does Windows XP automatically reassemble UDP fragments? I guess I could expect this for a normal UDP socket, but it's not expected behavior for a "raw" socket, IMO. Further, if this is the case on Windows XP, why isn't the behavior the same on Windows 7? Is there a way to enable this?

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  • Missing Home Folder XP Clients 2008R2 Domain

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

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  • NTFS: Deny all permissions for all files, except where explicitly added

    - by Simon
    I'm running a sandboxed application as a local user. I now want to deny almost all file system permissions for this user to secure the system, except for a few working folders and some system DLLs (I'll call this set of files & directories X below). The sandbox user is not in any group. So it shouldn't have any permissions, right? Wrong, because all "Authenticated Users" are a member of the local "Users" group, and that group has access to almost everything. I thought about recursively adding deny ACL-entries to all files and directories and remove them manually from X. But this seems excessive. I also thought about removing "Authenticated Users" from the "Users" group. But I'm afraid of unintended side-effects. It's likely that other things rely on this. Is this correct? Are there better ways to do this? How would you limit the filesystem permissions of a (very) non-trustworthy account?

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  • Spotlight can't see anything in Applications

    - by mix
    There have been other threads on this but none of the solutions mentioned have helped me. Spotlight has stopped showing any results for my Applications. I've tried reindexing and removing the index so it rebuilds it. No change. I've tried adding Applications to the Privacy tab and removing it, no change. I tried repairing disk permissions and redoing the above, no change. I've tried removing everything from the index except Applications and then I just get nothing for any search at all (except dictionary entries). I tried adding a symlink in my homedir to Applications and reindexing, but no change. Any ideas on what to do? I'm running Snow Leopard. This is driving me crazy! Update: I've noticed that when I start a reindex with sudo mdutil -E / and then immediately do a spotlight search for an app that the app shows up temporarily until spotlight gets disabled due to active indexing. After the indexing is done the app entries go away.

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  • Solaris TCP stack tuning

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

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  • Hard drive failed, suspected filesystem corruption, still cannot salvage any data from harddrive

    - by Hippy-Head
    Firstly, I am terribly sorry if this is a duplicate, but I couldn't find a similar issue to mine, so here goes. I have a 1TB hdd bought around 8 months ago used as backup hard drive. I have not used the drive for a period of time whatsoever, and when I was trying to get back to some files on it, it was completely wiped just like that. At first it would not boot I tried everything from command line chkdsk and filesystem recovery software to rebuilt it. After a few attempts I managed to initialize it, at that time it was an achievement. The problems started when I tried to recover the data inside, I have used A LOT of software free and commercial software on both Mac and Windows, with the help of cmd or Terminal commands, however no data of any kind was recovered, even after leaving it thoroughly scan for around 9-10 hours all night sometimes longer, with no results at all. I am somewhat desperate, I am usually good at retrieving data from corrupt hard drives, but this is not the case. Call me paranoid, but I do not want to give it to someone to fix it for me, as I have a lot of photos and personal stuff that I do not want anyone to see.

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  • Windows 2003 Active Directory Integrated DNS zone not registering non-domain computers

    - by Jeff Willener
    I'm not a networking guy by all means, I'm just a developer who dabbles enough to get into trouble and I'm there. So bear with me... :) At my office I have a Windows 2003 Domain Controller which also services DNS. On the domain I have a handful of computers and other misc. equipment/toys. For the DNS I only created a Forward Lookup Zone for my domain (mydomain.com). I run a lot of VM's so generally I have everything on the domain, however some of those VM's are not and only in a 'Workgroup'. I also have another laptop which belongs to another domain (otherdomain.com) which is here 100% but I use it for other purposes and has to belong to the otherdomain.com. With all that said, I have two questions: I have found any computer not on mydomain.com does not register it's IP address even though 'Register this connections address in DNS' is set to in the 'Advanced TCP/IP Settings' for the nic. Where have I messed this up? On the laptop which is registered on otherdomain.com, when I do a nslookup for a computer on mydomain.com (e.g. nslookup devbox1) it appends otherdomain.com as the suffix (e.g. queries devbox1.otherdomain.com). Same thing occurs if I use the fully qualified name. In the 'Advanced TCP/IP Settings' for that nic, I can 'Append these DNS suffixes' of mydomain.com but I fear that will hose my DNS lookups when I VPN to otherdomain.com. So what is the correct approach to resolve this issue? Do I add both mydomain.com and otherdomain.com in that order?

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  • Mouse click-focus wanders in vmPlayer 3.0 dual-monitor

    - by Gary M. Mugford
    Previously, a WinXPSP3 session running on a WinXPSP3 host computer ran perfectly fine in a dual monitor setup. No issues with vmPlayer 2.x. BEFORE updating to vmPlayer 3, the following problem cropped up. When clicking in a single monitor, you would get exactly what you expected. However, when the display was stretched across two monitors, the clicking would be to the left of the mouse cursor. The farther RIGHT you were, the farther left the click would occur. In other words, if you clicked on the system menu of a window in the upper left of a window on the left monitor, you would get the system menu. Move half a screen to your right and the click would be on an item about a quarter of the way over, rather than where you were clicking. And by going all the way to the far right of the right monitor, you could bring up a right-click menu on the far right of the LEFT monitor. I Hope I have described this properly. It's confusing, even in words. In single monitor mode, everything works perfectly fine. If, instead of using either UltraMon or DisplayFusion, you run a single desktop across both monitors (3200x1600), there are no mousing issues. Unfortunately, having two 1600x1200 monitors, that depth of 1600 makes that hack less than useable. My graphic card won't offer anything resembling 3200x1200. vmPlayer 3.0 did not alleviate the situation. The microsoft mouse drivers are up to date and so are the nVidia card drivers. Any ideas?

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  • What is optimal hardware configuration for heavy load LAMP application

    - by Piotr K.
    I need to run Linux-Apache-PHP-MySQL application (Moodle e-learning platform) for a large number of concurrent users - I am aiming 5000 users. By concurrent I mean that 5000 people should be able to work with the application at the same time. "Work" means not only do database reads but writes as well. The application is not very typical, since it is doing a lot of inserts/updates on the database, so caching techniques are not helping to much. We are using InnoDB storage engine. In addition application is not written with performance in mind. For instance one Apache thread usually occupies about 30-50 MB of RAM. I would be greatful for information what hardware is needed to build scalable configuration that is able to handle this kind of load. We are using right now two HP DLG 380 with two 4 core processors which are able to handle much lower load (typically 300-500 concurrent users). Is it reasonable to invest in this kind of boxes and build cluster using them or is it better to go with some more high-end hardware? I am particularly curious how many and how powerful servers are needed (number of processors/cores, size of RAM) what network equipment should be used (what kind of switches, network cards) any other hardware, like particular disc storage solutions, etc, that are needed Another thing is how to put together everything, that is what is the most optimal architecture. Clustering with MySQL is rather hard (people are complaining about MySQL Cluster, even here on Stackoverflow).

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  • Windows 7 Black Screen On Boot, Seperate Bootable VHD Works Fine

    - by David Osborn
    I have a Window 7 x64 install with a bootable VHD (also Windows 7 x64). I was having problems getting my homeserver to do backups (VSS erred) so I ran check disk and used a tool from MS (cleanc2r.exe) to remove an empty Q drive from the VHD that I believe was a result of installing Office 2010 Beta. (All of this was done on the bootable VHD, not the main install.) Now I can't boot into the main install. It gets past the Starting Windows screen and then goes black. I can still boot into the bootable VHD and everything works fine from there. I have tried to boot the main install in Safe Mode/Safe Mode with Networking/and Safe Mode command prompt and it has the same issue. I ran chkdsk /r on the main install and after doing all the work there was a message about correcting some free space that was marked as allocated and also that it was unable to make an entry into the event log. I tried the startup repair utility and it found no problems. I don't see the setting for restore to last know good configuration so I couldn't do that. I don't recall installing anything new to the main install nor having hooked up any new hardware recently.

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  • Pushing updates to live server... FTP isn't cutting it... a better method?

    - by Jenkz
    I'm the lead developer in a team of 2. My partner has only just joined the project and despite using GIT for version control etc, we are still stuck in the dark ages when it comes to code deployment. Currently I make all site updates via FTP (this way I have control / responsibility over everything that goes live), using Filezilla. I've done this for years, but we now have some large PHP classes (300KB), and a lot of traffic. So in short, every time I upload a key class "general" for example, the site goes down until the file finishes uploading. This is only 5/6 seconds at a time, but this is increasingly unacceptable. I realise I can upload the file under a different name and then rename both files... but really there must be a better way? I've heard about rsyncing code across from another server, but I don't see how this prevents switching to the new file whilst uploading. We only have one server (for DB and Apache) but also use some cloud servers (for openx as an example).

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