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• BIND9 server types

  - by aGr

  I was configuring DNS on my server using BIND9, everything seems to work, but I have a question regarding my config file. I've ended up with this configuration in /etc/bind/named.conf.local zone "example.com" { type master; file "/etc/bind/db.example.com"; allow-transfer { 192.168.1.1; }; }; zone "1.168.192.in-addr.arpa" { type master; notify no; file "/etc/bind/db.192"; allow-transfer { 192.168.1.1; }; }; forwarders { 10.253.22.140; 10.253.22.141; }; I've read about the different type of dns server, like primary master etc. The first two parts (zone and zone) corresponds to primary dns server configuration. First record for "classic" lookup, second one for reverse. The last part (forwarders) is configuration of cache-server and contains the ISP's IP of DNS server. So all names resolved thanks to this server will be cached. Simple question: am I right? Does my description make sense? Or one server can be only either master or either cached?

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• Why does Exchange 2003 silently reject emails with large attachments?

  - by Cypher

  Our environment: Exchange Server 2003 Standard, single instance, running on Windows Server 2003 Standard. configured to not send/receive mail with attachments larger than 10 MB. NDRs are not enabled. The issue: When an external sender sends an email with an attachment larger than 10MB, Exchange, as configured, does not receive the message. However, the sender of that message does not receive any notifications from his own mail server that the message could not be delivered due to attachment size. However, if an external user tries to send an email to a non-existent user, they do receive a message from their mail server indicating that the user does not exist. Why is that, and is there anything I can do about it? It would be nice if the sender received notification that the attachment file size exceeds our limits and their message was never received... Update The Exchange server has a SpamAssassin box in front of it... could that have something to do with it? Here is one of the last lines from SpamAssassin's logs when searching for my test e-mails: mail postfix/smtp[19133]: 2B80917758: to=, relay=10.0.0.8[10.0.0.8]:25, delay=4.3, delays=2.6/0/0/1.7, dsn=2.6.0, status=sent (250 2.6.0 Queued mail for delivery) My assumption is that Spam Assassin thinks the message is OK and is forwarding it off to Exchange. Update I've verified that Exchange is receiving the message and generating an NDR. However, delivery of NDRs are disabled to prevent Backscatter. Is there something that I can do to get Exchange to send a bounce message to the sending mail server (or verify that message is being sent) so the sending mail server can notify its sender of the bounce?

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• IPC between multiple processes on multiple servers

  - by z8000

  Let's say you have 2 servers each with 8 CPU cores each. The servers each run 8 network services that each host an arbitrary number of long-lived TCP/IP client connections. Clients send messages to the services. The services do something based on the messages, and potentially notify N1 of the clients of state changes. Sure, it sounds like a botnet but it isn't. Consider how IRC works with c2s and s2s connections and s2s message relaying. The servers are in the same data center. The servers can communicate over a private VLAN @1GigE. Messages are < 1KB in size. How would you coordinate which services on which host should receive and relay messages to connected clients for state change messages? There's an infinite number of ways to solve this problem efficiently. AMQP (RabbitMQ, ZeroMQ, etc.) Spread Toolkit N^2 connections between allservices (bad) Heck, even run IRC! ... I'm looking for a solution that: perhaps exploits the fact that there's only a small closed cluster is easy to admin scales well is "dumb" (no weird edge cases) What are your experiences? What do you recommend? Thanks!

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• ksh Auto-Completion PuTTY Configuration

  - by Nitrodist

  I'm having a bit of a problem configuring my PuTTY client to work with the auto-completion feature in the ksh shell. I do a listing on the root with the directories /home and /homeroot and it returns the directories in a list just fine. I can't select it, though, by hitting X = (where X is the number). /home/nitrodist>ls /h #hits esc + = 1) home/ 2) homeroot/ #hits 2 + = for the 'homeroot' dir 1) home/ 2) homeroot/ #hits just the '=' key. 1) home/ 2) homeroot/ Any ideas? I've su -'d to another user who can actually do it with their PuTTY session and I can't do it there, which makes me think it's a PuTTY configuration issue. This is running on a ksh93 shell on HP-UX, if that makes any difference. Here's my ksh config: /home/campbelm>set -o Current option settings allexport off bgnice on emacs off errexit off gmacs off ignoreeof off interactive on keyword off markdirs off monitor on noexec off noclobber off noglob off nolog off notify off nounset off privileged off restricted off trackall off verbose off vi on viraw on xtrace off /home/campbelm>

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• How can I "filter" postfix-generated bounce messages?

  - by Flimzy

  We are using postfix 2.7 and custom SMTPD (based on qpsmtpd) in highly customized configuration for spam filtering. We have a new requirement to filter postfix-generated bounces through our custom qpsmtpd process (not so much for content filtering, but to process these bounces accordingly). Our current configuration looks (in part) like this: main.cf (only customizations shown): 2526 inet n - - - 0 cleanup pickup fifo n - - 60 1 pickup -o content_filter=smtp:127.0.0.2 Our smtpd injects messages to postfix on port 2526, by speaking directly to the cleanup daemon. And the custom pickup command instructs postfix to hand off all locally-generated mail (from cron, nagios, or other custom scripts) to our custom smtpd. The problem is that this configuration does not affect postfix generated bounce messages, since they do not go through the pickup daemon. I have tried adding the same content_filter option to the bounce daemon commands, but it does not seem to have any effect: bounce unix - - - - 0 bounce -o content_filter=smtp:127.0.0.2 defer unix - - - - 0 bounce -o content_filter=smtp:127.0.0.2 trace unix - - - - 0 bounce -o content_filter=smtp:127.0.0.2 For reference, here is my main.cf file, as well: biff = no # TLS parameters smtpd_tls_loglevel = 0 smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache smtp_tls_security_level = may mydestination = $myhostname alias_maps = proxy:pgsql:/etc/postfix/dc-aliases.cf transport_maps = proxy:pgsql:/etc/postfix/dc-transport.cf # This is enforced on incoming mail by QPSMTPD, so this is simply # the upper possible bound (also enforced in defaults.pl) message_size_limit = 262144000 mailbox_size_limit = 0 # We do our own message expiration, but if we set this to 0, then postfix # will try each mail delivery only once, so instead we set it to 100 days # (which is the max postfix seems to support) maximal_queue_lifetime = 100d hash_queue_depth = 1 hash_queue_names = deferred, defer, hold I also tried adding the internal_mail_filter_classes option to main.cf, but also tono affect: internal_mail_filter_classes = bounce,notify I am open to any suggestions, including handling our current content-filtering-loop in a different way. If it's not clear what I'm asking, please let me know, and I can try to clarify.

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• Error in mysql "max_allowed_packet" VPS godaddy

  - by focusmantra

  I am getting error "Serious session error detected. Please notify administrator, this problem is most probably caused by small value in max_allowed_packet MySQL setting. " This error generally comes after every 20-25 minutes and when it comes , it logs out the user and then logs in again, starts again and then after sometime the same issue occurs again. I tried changing max_allowed_packet setting but getting error "access denied; You need SUPER privilege for this operation'. I even tried SET SESSION too but error "SESSION variable 'max_allowed_packet' is read-only. Use SET GLOBAL to assign the value" I have hosted the website on godaddy VPS centos and access it via putty or cpanel. Website is made in moodle 2.0.3 i.e. php. My developers use to fix this but warned will occur when server restart. As godaddy ppl say move to dedicated and then i can do but as I don't have any money so can't at present. I trying to find how developers used to do for temporary fix that is until server restart.

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• Connect trough remote computer connection

  - by Didac

  First, sorry for my english and my poor knowlodge of this subject. I have a dedicated server placed in Germany (windows 2008 R2) and I live in spain. I would like to access internet from my home computer (Windows 7 Pro x64), trough my server in Germany, so I can use a German IP, what I need some times. I have complete acces in to both computers, but I just don't know where to start. (My knwoledge is limited to software development :/ ) I'd like to know where to start, if I need to create a VPN and so.. Thanks in advance! Update 1 I tried a lot of options of OpenVPN, but I sadly I know nothing abuot networking, so I have to accept I do not know what I'm doing :( Here are my config files (note most of the options are from the sample config files). server.conf #server config file start port 1194 proto udp dev tun server 10.0.0.0 255.255.255.224 #you may choose any subnet. 10.0.0.x is used for this example. ca "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\ca.crt" cert "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\server.crt" key "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\server.key" dh "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\dh1024.pem" push "redirect-gateway def1" push "dhcp-option DNS 8.8.8.8" #the following commands are optional keepalive 10 120 comp-lzo persist-key persist-tun verb 5 #config file ends client.conf #client config file start client dev tun proto udp remote 176.9.99.180 1194 resolv-retry infinite nobind persist-key persist-tun ca "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\ca.crt" cert "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\client1.crt" key "C:\\Program Files (x86)\\OpenVPN\\easy-rsa\\keys\\client1.key" ns-cert-type server comp-lzo verb 5 explicit-exit-notify 2 ping 10 ping-restart 60 route-method exe route-delay 2 # end of client config file And here's the server's network settings: IP address: 176.9.99.180 Subnet mask: 255.255.255.224 Default gateway: 176.9.99.161 Preferred DNS server: 127.0.0.1

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• How can I automatically synchronize a directory tree on multiple machines?

  - by Blacklight Shining

  I have two Mac laptops and a Debian server, each with a directory that I would like to keep in sync between the three. The solution should meet the following criteria (in rough order of importance): It must not use any third-party service (e.g. Dropbox, SugarSync, Google whatever). This does not include installing additional software (as long as it's free). It must not require me to use specific directories or change my way of storing things. (Dropbox does this IIRC) It must work in all directions (changes made on /any/ machine should be pushed to the others) All data sent must be encrypted (I have ssh keypairs set up already) It must work even when not all machines are available (changes should be pushed to a machine when it comes back online) It must work even when the /directories/ on some machines are not available (they may be stored on disk images which will not always be mounted) This can be solved for Macs by using launchd to automatically launch and kill (or in some way change the behavior of) whatever daemon is used for syncing when the images are mounted and unmounted. It must be immediate (using an event-based system, not a periodic one like cron) It must be flexible (if more machines are added, I should be able to incorporate them easily) I also have some preferences that I would like to be fulfilled, but do not have to be: It should notify me somehow if there are conflicts or other errors. It should recognize symbolic and hard links and create corresponding ones. It should allow me to create a list of exceptions (subdirectories which will not be synced at all). It should not require me to set up port forwarding or otherwise reconfigure a network. This can be solved by using an ssh tunnel with reverse port forwarding. If you have a solution that meets some, but not all of the criteria, please contribute it in the comments as it might be useful in some way, and it might be possible to meet some of the criteria separately. What I tried, and why it didn't work: rsync and lsyncd do not support bidirectional synchronization csync2 is designed for server clusters and does not appear to work with machines with dynamic IPs DRBD (suggested by amotzg) involves installing a kernel module and does not appear to work on systems running OS X

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• Exchange emails not delivering for one user

  - by Cylindric

  We have an Exchange infrastructure going through a migration from 2003 SP2 (call it ExOld) to 2010 (ExNew). All users are now on the new server, but mail is still being directed to ExOld until testing is complete. ExNew sends emails directly to the internet. For one particular user, emails don't seem to be being reliably delivered, but the odd thing is that it's not all emails. I can see external emails in his inbox. If I send an internal email it works fine. If I send an email from Gmail to him it doesn't get through. If I telnet from outside to ExOld I can send an email to him. If I telnet from outside to ExNew I can send an email to him. This is a transcript that results in a successful send: 220 ExOldName Microsoft ESMTP MAIL Service, Version: 6.0.3790.4675 ready at Mon, 22 Oct 2012 10:55:26 +0100 EHLO test.com 500 5.3.3 Unrecognized command EHLO test.com 250-ExOldFQDN Hello [MyTestExternalIp] 250-TURN 250-SIZE 250-ETRN 250-PIPELINING 250-DSN 250-ENHANCEDSTATUSCODES 250-8bitmime 250-BINARYMIME 250-CHUNKING 250-VRFY 250-X-EXPS GSSAPI NTLM LOGIN 250-X-EXPS=LOGIN 250-AUTH GSSAPI NTLM LOGIN 250-AUTH=LOGIN 250-X-LINK2STATE 250-XEXCH50 250 OK MAIL FROM:[email protected] 250 2.1.0 [email protected] OK RCPT TO:[email protected] notify=success,failure 250 2.1.5 [email protected] DATA 354 Start mail input; end with . Subject:Test 1056 Test 10:56 . 250 2.6.0 Queued mail for delivery quit 221 2.0.0 ExOldFQDN Service closing transmission channel Emails go through Symantec Cloud, but their "Track and Trace" shows the messages going through, with a "delivered ok" log entry. 2012-10-22 09:19:56 Connection from: 209.85.212.171 (mail-wi0-f171.google.com) 2012-10-22 09:19:56 Sending server HELO string:mail-wi0-f171.google.com 2012-10-22 09:19:56 Message id:CAE5-_4hzGpY2kXFbzxu7gzEUSj5BAvi+BB5q1Gjb6UUOXOWT3g@mail.gmail.com 2012-10-22 09:19:56 Message reference: 135089759500000177171130001194006 2012-10-22 09:19:56 Sender: [email protected] 2012-10-22 09:19:56 Recipient: [email protected] 2012-10-22 09:20:26 SMTP Status: OK 2012-10-22 09:19:56 Delivery attempt #1 (final) 2012-10-22 09:19:56 Recipient server: ExOldIP (ExOldIP) 2012-10-22 09:19:56 Response: 250 2.6.0 Queued mail for delivery I'm not sure where to look on the old (or new) server for information as to where the mails are ending up.

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• Setting up logging for a remote backup script

  - by Brian Dainis

  So I wrote up a short script that I am planning to run via a cron job daily to package up my site files and send them to a remote location. I also plan to incorporate DB dumps, but I have not gotten that far yet. My issue today however is that Im am uncertain how to log the output of each command for errors, warnings, or other pertinent information the command may output. I would also like to install sometype of fail safe so if something goes horribly wrong the script will stop dead in its tracks and notify me via email or something. Ok the email thing is not as critical, but would be nice. Does anybody have any ideas for that? Here is what I have so far. By the way, both servers are CentOS 6.2 running standard LAMP. #!/bin/sh ################################# ### Set Vars ################################# THEDATE=`date +%m%d%y%H%M` ################################# ### Create Archives ################################# tar -cf /root/backups/files/server_BAK_${THEDATE}.tar -C / var/www/vhosts gzip /root/backups/files/server_BAK_${THEDATE}.tar ################################# ### Send Data to Remote Server ################################# scp /root/backups/files/server_BAK_${THEDATE}.tar.gz user@host:/home/bak1/ftp/backups/ ################################# ### Remove Data from this Server ################################# rm -rf /root/backups/files/server_BAK_${THEDATE}.tar.gz

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• is there a way to run a command before puppet implements a change?

  - by Patrick

  I want to have puppet run a specific command before performing any type of change. I am aware of the prerun_command option in the main puppet.conf, but this is not what I'm looking for. I want the command to only run if something is about to change, not on every puppet run. Here's the scenario. Let's say I have a bunch of web servers behind a load balancer. I then want puppet to update the web site files. But in order to prevent issues where some files have been updated, but other files haven't, and the mixed versions causing problems, I want to take the server out of the load balancer pool. I could write a script which when run will tell the load balancer to remove the box from the pool. Then puppet can do the change, and use postrun_command to put the box back in the pool once complete. But I need a way to run that script to remove the server from the pool. The only solution I can think of is to keep 2 copies of the files on the box. One a staging copy, and when puppet updates that, use a notify action to trigger the removal script, and then copy from staging into the live location. But I was hoping for something a little more generic that would work on any change being performed (upgrading a package, restarting a service, creating a user, anything).

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• Bind9 not doing anything with forwarded query responses?

  - by Rykaro

  I have a Bind DNS server that is the local production DNS server and a Windows 2008 R2 domain controller which provides DNS for a lab environment with the domain xyz.lab. I've configured the Bind DNS to forward DNS requests for the domain xyz.lab to the Windows DNS server with this config: zone "xyz.lab" { type forward; forward only; forwarders { x.x.x.x; }; }; zone "x.x.x.in-addr.arpa" { type forward; forward only; forwarders { x.x.x.x; }; }; And Bind options are (the all_internal acl includes the subnets of both the production and lab networks as well as the loopback of the bind server): allow-query { all_internal; }; allow-recursion { all_internal; }; allow-transfer { none; }; notify no; minimal-responses yes; version "unknown"; Unfortunately, when I do an nslookup or dig on the bind server for a host on the lab domain, the request times out. The logs on the Windows 2008 DNS server show it receiving the query and responding to it and a network packet trace shows the query responses arriving at the Bind DNS server. The servers reside on the same switch with a router providing connectivity between the layer 3 subnets (production and lab are on different subnets) and there is a round trip time of between 3ms and 5ms on pings between the two servers, so I don't think there is an issue with latency causing a timeout of the query. In summary a query-response arrives back at the Bind server and the nslookup/dig times-out. Why does the Bind DNS not seem to be doing anything with the query responses when it receives them?

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• Cisco 7206vxr cpu reducing

  - by naimson

  I have a 7206VXR (NPE-G2) . At the rate of 140 kpps i gain 80% of cpu . So i looking for ways how to reduce it? So i want to turn off netflow(but don't want to this,monitoring is highly important for me), but it will give me only 10-20% ? At this moment with 84kpps i have 58% sh processes cpu sorted give me this. PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 109 163534600 537236763 304 35.38% 32.83% 16.85% 0 IP Input 67 829396 52280 15864 0.15% 0.01% 0.00% 0 Per-minute Jobs 68 5542736 3053476 1815 0.15% 0.18% 0.16% 0 Per-Second Jobs 51 635852 1116315 569 0.07% 0.03% 0.02% 0 Net Background 329 120396 4607274 26 0.07% 0.00% 0.00% 0 EIGRP-IPv4 Hello 105 50508 95032488 0 0.07% 0.05% 0.05% 0 IPAM Manager 6 4068580 476916 8531 0.00% 0.07% 0.05% 0 Check heaps 7 7768 3634 2137 0.00% 0.00% 0.00% 0 Pool Manager 8 0 1 0 0.00% 0.00% 0.00% 0 DiscardQ Backgro 10 8 708 11 0.00% 0.00% 0.00% 0 WATCH_AFS 5 0 1 0 0.00% 0.00% 0.00% 0 RO Notify Timers 12 0 2 0 0.00% 0.00% 0.00% 0 ATM VC Auto Crea 9 0 2 0 0.00% 0.00% 0.00% 0 Timers 11 0 2 0 0.00% 0.00% 0.00% 0 ATM AutoVC Perio 13 296 610532 0 0.00% 0.00% 0.00% 0 IPC Event Notifi 16 0 1 0 0.00% 0.00% 0.00% 0 IPC Zone Manager 17 3584 2980311 1 0.00% 0.00% 0.00% 0 IPC Periodic Tim 4 0 1 0 0.00% 0.00% 0.00% 0 EDDRI_MAIN 19 0 1 0 0.00% 0.00% 0.00% 0 IPC Process leve 20 0 1 0 0.00% 0.00% 0.00% 0 IPC Seat Manager 21 96 174453 0 0.00% 0.00% 0.00% 0 IPC Check Queue 14 4 50890 0 0.00% 0.00% 0.00% 0 IPC Dynamic Cach 3 0 1 0 0.00% 0.00% 0.00% 0 cpf_process_tpQ 24 756 305371 2 0.00% 0.00% 0.00% 0 IPC Keep Alive M 25 2340 610561 3 0.00% 0.00% 0.00% 0 IPC Loadometer 22 0 1 0 0.00% 0.00% 0.00% 0 IPC Seat RX Cont 15 0 1 0 0.00% 0.00% 0.00% 0 IPC Session Serv 18 1620 2980310 0 0.00% 0.00% 0.00% 0 IPC Deferred Por 29 0 1 0 0.00% 0.00% 0.00% 0 Exception contro sh run(greped): http://pastie.org/5483194 Hardware: c7200p-adventerprisek9-mz.151-4.M1.bin Cisco 7206VXR (NPE-G2) processor (revision A) with 917504K/65536K bytes of memory. Processor board ID 2xxxxxxx MPC7448 CPU at 1666Mhz, Implementation 0, Rev 2.2 6 slot VXR midplane, Version 2.1

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• Why won't sql server express 2008 service restart after I enable TCP/IP Protocol?

  - by John

  Whenever I enable TCP/IP connections on my SQL Server Express 2008 database server running on Windows XP SP3, I cannot restart the service, it simply states "The request failed or did respond in a timely fashion". Any suggestions of what I may have configured incorrectly? [update] Here is the applicable part of the Error Log: MSSQL$SQLEXPRESS Server failed to list on 'any' 3060. Error: 0x2747. To proceed, notify you system administrator. MSSQL$SQLEXPRESS TDSSNIClient initialization failed with error 0x2747, status code 0xa. Reason: Unable to initialize the TCP/IP listener. An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. MSSQL$SQLEXPRESS TDSSNIClient initialization failed with error 0x2747, status code 0x1. Reason: Initialization failed with an infrastructure error. Check for previous errors. An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. MSSQL$SQLEXPRESS Could not start the network library because of an internal error in the network library. To determine the cause, review the errors immediately preceding this one in the error log. MSSQL$SQLEXPRESS SQL Server could not spawn FRunCM thread. Check the SQL Server error log and the Windows event logs for information about possible related problems.

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• Automating XNA Performance Testing?

  - by Grofit

  I was wondering what peoples approaches or thoughts were on automating performance testing in XNA. Currently I am looking at only working in 2d, but that poses many areas where performance can be improved with different implementations. An example would be if you had 2 different implementations of spatial partitioning, one may be faster than another but without doing some actual performance testing you wouldn't be able to tell which one for sure (unless you saw the code was blatantly slow in certain parts). You could write a unit test which for a given time frame kept adding/updating/removing entities for both implementations and see how many were made in each timeframe and the higher one would be the faster one (in this given example). Another higher level example would be if you wanted to see how many entities you can have on the screen roughly without going beneath 60fps. The problem with this is to automate it you would need to use the hidden form trick or some other thing to kick off a mock game and purely test which parts you care about and disable everything else. I know that this isnt a simple affair really as even if you can automate the tests, really it is up to a human to interpret if the results are performant enough, but as part of a build step you could have it run these tests and publish the results somewhere for comparison. This way if you go from version 1.1 to 1.2 but have changed a few underlying algorithms you may notice that generally the performance score would have gone up, meaning you have improved your overall performance of the application, and then from 1.2 to 1.3 you may notice that you have then dropped overall performance a bit. So has anyone automated this sort of thing in their projects, and if so how do you measure your performance comparisons at a high level and what frameworks do you use to test? As providing you have written your code so its testable/mockable for most parts you can just use your tests as a mechanism for getting some performance results... === Edit === Just for clarity, I am more interested in the best way to make use of automated tests within XNA to track your performance, not play testing or guessing by manually running your game on a machine. This is completely different to seeing if your game is playable on X hardware, it is more about tracking the change in performance as your game engine/framework changes. As mentioned in one of the comments you could easily test "how many nodes can I insert/remove/update within QuadTreeA within 2 seconds", but you have to physically look at these results every time to see if it has changed, which may be fine and is still better than just relying on playing it to see if you notice any difference between version. However if you were to put an Assert in to notify you of a fail if it goes lower than lets say 5000 in 2 seconds you have a brittle test as it is then contextual to the hardware, not just the implementation. Although that being said these sort of automated tests are only really any use if you are running your tests as some sort of build pipeline i.e: Checkout - Run Unit Tests - Run Integration Tests - Run Performance Tests - Package So then you can easily compare the stats from one build to another on the CI server as a report of some sort, and again this may not mean much to anyone if you are not used to Continuous Integration. The main crux of this question is to see how people manage this between builds and how they find it best to report upon. As I said it can be subjective but as knowledge will be gained from the answers it seems a worthwhile question.

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• Build Explorer version 1.1 for Visual Studio Team Explorer is released

  - by terje

  Our free extension to Visual Studio , the folder based Build Explorer Version 1.1 has now been released, and uploaded to the Visual Studio Gallery and Codeplex. We have collected up a few changes and some bugs, as follows: Changes: Queue Default Builds can now be optionally fully enabled, fully disabled or enabled just for leaf nodes (=disabled for folders).  If you got a large number of builds it was pretty scary to be able to launch all of them with just one click.  However, it is nice to avoid having the dialog box up when you want to just run off a single build.  That’s the reasoning between the 3rd choice here. Auto fill-in of the builds at start up and refresh  This was a request that came up a lot, and which was also irritating to us.  When the Team Project is opened, the Build explorer will start by itself and fill up it’s tree. So you don’t need to click the node anymore. There was also quite a bit of flashing when the tree filled up, this has been reduced to just a single top level fill before it collapses the node. The speed of the buildup of the tree has also been increased. The “All Build Definitions” node is now shown on top of the list Login box appeared in certain cross domain situations. This was a fix for the TF30063 authentication problem we had in the beginning.  Hopefully the new code has that fixed properly so that both the login box and the TF30063 are gone forever.  Our testing so far seems to indicate it works.  If anyone gets a real problem here there are two workarounds: 1) Turn off the auto refresh to reduce the issue. If this doesn’t fix it, then 2) please reinstall the former version (go to the codeplex download site if you don’t have it anymore)  Write a comment to this blog post with a description of what happens, and I will send a temporary fix asap. Bug fixes: The folder name matching was case sensitive, so “Application.CI” and “application.CI” created two different folders.  View all builds not shown for leaf odes, and view builds didn’t work in all cases.  There was some inconsistencies here which have been fixed. Partly fixed:  The context menu to queue a new build for disabled builds should be removed, but that was a difficult one, and is still on the list, but the command will not do anything for a disabled build. Using the Queue Default Builds on a folder, and if it had some disabled builds below an error box appeared and ruined the whole experience. As a result of these fixes there has been introduced some new options, as shown below:   The two first settings, the Separator symbol and the options for how to handle Queuing of default builds are set per Team Project, and is stored in the TFS source control under the BuildProcessTemplates folder, with the name Inmeta.VisualStudio.BuildExplorer.Settings.xml The next two settings need some explanations.  They handle the behavior for the auto update of the build folders.  First, these are stored in the local registry per user, at the key HKEY_CURRENT_USER/Software\Inmeta\BuildExplorer. The first option Use Timed Refresh at Startup, if turned off, you will need to click the node as it is done in Version 1.0.  The second option is a timed value, the time after the Build explorer node is created and until the scanning of the Build folders start.  It is assumed that this is enough, and the tests so far indicates this.  If you have very many builds and you see that the explorer don’t get them all, try to increase this value, and of course, notify me of your case, either here or on the Visual Gallery site.

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• Ubuntu 12.10 broken, shutdown while updating

  - by UnknownDude

  I got the following problem: My PC shutdown while upgrading from 12.04 to 12.10. Everything seems to work but I can't install the missing updates. It always tells me to run apt-get install -f, but when I do so it just says: (It's in German, hope it doesn't matter) Paketlisten werden gelesen... Fertig Abhängigkeitsbaum wird aufgebaut Statusinformationen werden eingelesen... Fertig Abhängigkeiten werden korrigiert... Fertig Die folgenden Pakete wurden automatisch installiert und werden nicht mehr benötigt: espeak gcc-4.6-base:i386 gir1.2-notify-0.7 libcamel-1.2-29 libebook-1.2-12 libedataserver-1.2-15 libgconf2-4 libgnome-bluetooth8 libgnome-menu2 libgnomekbd7 libgomp1:i386 libgweather-3-0 libimobiledevice2 libindicate5 libkpathsea5 libpoppler19 libusbmuxd1 python-gmenu Verwenden Sie »apt-get autoremove«, um sie zu entfernen. Die folgenden zusätzlichen Pakete werden installiert: nvidia-current-updates xserver-xorg-core xserver-xorg-input-evdev xserver-xorg-input-mouse xserver-xorg-input-synaptics xserver-xorg-input-vmmouse xserver-xorg-input-wacom xserver-xorg-video-cirrus xserver-xorg-video-fbdev xserver-xorg-video-mga xserver-xorg-video-neomagic xserver-xorg-video-nouveau xserver-xorg-video-openchrome xserver-xorg-video-qxl xserver-xorg-video-savage xserver-xorg-video-sis xserver-xorg-video-sisusb xserver-xorg-video-tdfx xserver-xorg-video-vesa xserver-xorg-video-vmware Vorgeschlagene Pakete: xfonts-100dpi xfonts-75dpi gpointing-device-settings touchfreeze firmware-linux Die folgenden Pakete werden ENTFERNT: nvidia-current Die folgenden Pakete werden aktualisiert (Upgrade): nvidia-current-updates xserver-xorg-core xserver-xorg-input-evdev xserver-xorg-input-mouse xserver-xorg-input-synaptics xserver-xorg-input-vmmouse xserver-xorg-input-wacom xserver-xorg-video-cirrus xserver-xorg-video-fbdev xserver-xorg-video-mga xserver-xorg-video-neomagic xserver-xorg-video-nouveau xserver-xorg-video-openchrome xserver-xorg-video-qxl xserver-xorg-video-savage xserver-xorg-video-sis xserver-xorg-video-sisusb xserver-xorg-video-tdfx xserver-xorg-video-vesa xserver-xorg-video-vmware 20 aktualisiert, 0 neu installiert, 1 zu entfernen und 133 nicht aktualisiert. 8 nicht vollständig installiert oder entfernt. Es müssen noch 0 B von 70,6 MB an Archiven heruntergeladen werden. Nach dieser Operation werden 184 MB Plattenplatz freigegeben. Möchten Sie fortfahren [J/n]? j (Lese Datenbank ... 242727 Dateien und Verzeichnisse sind derzeit installiert.) Entfernen von nvidia-current ... Removing all DKMS Modules Error! There are no instances of module: nvidia-current 295.40 located in the DKMS tree. Done. Traceback (most recent call last): File "/usr/bin/quirks-handler", line 26, in <module> import Quirks.quirkapplier File "/usr/lib/python2.7/dist-packages/Quirks/quirkapplier.py", line 26, in <module> import XKit.xutils ImportError: No module named XKit.xutils dpkg: Fehler beim Bearbeiten von nvidia-current (--remove): Unterprozess installiertes pre-removal-Skript gab den Fehlerwert 1 zurück Trigger für bamfdaemon werden verarbeitet ... Rebuilding /usr/share/applications/bamf.index... Trigger für libc-bin werden verarbeitet ... ldconfig deferred processing now taking place Fehler traten auf beim Bearbeiten von: nvidia-current E: Sub-process /usr/bin/dpkg returned an error code (1) When I try to remove nvidia-current it tells me to run apt-get install -f. Do you guys have any idea? I don't want to reinstall my whole system, takes a lot of time to encrypt everything again and so on.

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• Banshee encountered a Fatal Error (sqlite error 11: database disk image is malformed)

  - by Nik

  I am running ubuntu 10.10 Maverick Meerkat, and recently I am helping in testing out indicator-weather using the unstable buids. However there was a bug which caused my system to freeze suddenly (due to indicator-weather not ubuntu) and the only way to recover is to do a hard reset of the system. This happened a couple of times. And when i tried to open banshee after a couple of such resets I get the following fatal error which forces me to quit banshee. The screenshot is not clear enough to read the error, so I am posting it below, An unhandled exception was thrown: Sqlite error 11: database disk image is malformed (SQL: BEGIN TRANSACTION; DELETE FROM CoreSmartPlaylistEntries WHERE SmartPlaylistID IN (SELECT SmartPlaylistID FROM CoreSmartPlaylists WHERE IsTemporary = 1); DELETE FROM CoreSmartPlaylists WHERE IsTemporary = 1; COMMIT TRANSACTION) at Hyena.Data.Sqlite.Connection.CheckError (Int32 errorCode, System.String sql) [0x00000] in <filename unknown>:0 at Hyena.Data.Sqlite.Connection.Execute (System.String sql) [0x00000] in <filename unknown>:0 at Hyena.Data.Sqlite.HyenaSqliteCommand.Execute (Hyena.Data.Sqlite.HyenaSqliteConnection hconnection, Hyena.Data.Sqlite.Connection connection) [0x00000] in <filename unknown>:0 Exception has been thrown by the target of an invocation. at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 at System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0 at System.Reflection.ConstructorInfo.Invoke (System.Object[] parameters) [0x00000] in <filename unknown>:0 at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0 at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0 at Banshee.Gui.GtkBaseClient.Startup () [0x00000] in <filename unknown>:0 at Hyena.Gui.CleanRoomStartup.Startup (Hyena.Gui.StartupInvocationHandler startup) [0x00000] in <filename unknown>:0 .NET Version: 2.0.50727.1433 OS Version: Unix 2.6.35.27 Assembly Version Information: gkeyfile-sharp (1.0.0.0) Banshee.AudioCd (1.9.0.0) Banshee.MiniMode (1.9.0.0) Banshee.CoverArt (1.9.0.0) indicate-sharp (0.4.1.0) notify-sharp (0.4.0.0) Banshee.SoundMenu (1.9.0.0) Banshee.Mpris (1.9.0.0) Migo (1.9.0.0) Banshee.Podcasting (1.9.0.0) Banshee.Dap (1.9.0.0) Banshee.LibraryWatcher (1.9.0.0) Banshee.MultimediaKeys (1.9.0.0) Banshee.Bpm (1.9.0.0) Banshee.YouTube (1.9.0.0) Banshee.WebBrowser (1.9.0.0) Banshee.Wikipedia (1.9.0.0) pango-sharp (2.12.0.0) Banshee.Fixup (1.9.0.0) Banshee.Widgets (1.9.0.0) gio-sharp (2.14.0.0) gudev-sharp (1.0.0.0) Banshee.Gio (1.9.0.0) Banshee.GStreamer (1.9.0.0) System.Configuration (2.0.0.0) NDesk.DBus.GLib (1.0.0.0) gconf-sharp (2.24.0.0) Banshee.Gnome (1.9.0.0) Banshee.NowPlaying (1.9.0.0) Mono.Cairo (2.0.0.0) System.Xml (2.0.0.0) Banshee.Core (1.9.0.0) Hyena.Data.Sqlite (1.9.0.0) System.Core (3.5.0.0) gdk-sharp (2.12.0.0) Mono.Addins (0.4.0.0) atk-sharp (2.12.0.0) Hyena.Gui (1.9.0.0) gtk-sharp (2.12.0.0) Banshee.ThickClient (1.9.0.0) Nereid (1.9.0.0) NDesk.DBus.Proxies (0.0.0.0) Mono.Posix (2.0.0.0) NDesk.DBus (1.0.0.0) glib-sharp (2.12.0.0) Hyena (1.9.0.0) System (2.0.0.0) Banshee.Services (1.9.0.0) Banshee (1.9.0.0) mscorlib (2.0.0.0) Platform Information: Linux 2.6.35-27-generic i686 unknown GNU/Linux Disribution Information: [/etc/lsb-release] DISTRIB_ID=Ubuntu DISTRIB_RELEASE=10.10 DISTRIB_CODENAME=maverick DISTRIB_DESCRIPTION="Ubuntu 10.10" [/etc/debian_version] squeeze/sid Just to make it clear, this happened only after the hard resets and not before. I used to use banshee everyday and it worked perfectly. Can anyone help me fix this?

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• Using progress dialog in Visual Studio extensions

  - by Utkarsh Shigihalli

  Originally posted on: http://geekswithblogs.net/onlyutkarsh/archive/2014/05/23/using-progress-dialog-in-visual-studio-extensions.aspxAs a Visual Studio extension developer you are required to keep the aesthetics of Visual Studio in tact when you integrate your extension with Visual Studio. Your extension looks odd when you try to use windows controls and dialogs in your extensions. Visual Studio SDK exposes many interfaces so that your extension looks as integrated with Visual Studio as possible. When your extension is performing a long running task, you have many options to notify the progress to the user. One such option is through Visual Studio status bar. I have previously blogged about displaying progress through Visual Studio status bar. In this blog post I am going to highlight another way using IVsThreadedWaitDialog2 interface. One thing to note is, as the IVsThreadedWaitDialog2 interface name suggests it is a dialog hence user cannot perform any action when the dialog is being shown. So Visual Studio seems responsive to user, even when a task is being performed. Visual Studio itself makes use of this interface heavily. One example is when you are loading a solution (.sln) with lot of projects Visual Studio displays dialog implemented by this interface (screenshot below). So the first step is to get the instance of IVsThreadedWaitDialog2 interface using IServiceProvider interface. var dialogFactory = _serviceProvider.GetService(typeof(SVsThreadedWaitDialogFactory)) as IVsThreadedWaitDialogFactory; IVsThreadedWaitDialog2 dialog = null; if (dialogFactory != null) { dialogFactory.CreateInstance(out dialog); } So if your have the package initialized properly out object dialog will be not null and would contain the instance of IVsThreadedWaitDialog2 interface. Once the instance is got, you call the different methods to manage the dialog. I will cover 3 methods StartWaitDialog, EndWaitDialog and HasCanceled in this blog post. You show the progress dialog as below. if (dialog != null && dialog.StartWaitDialog( "Threaded Wait Dialog", "VS is Busy", "Progress text", null, "Waiting status bar text", 0, false, true) == VSConstants.S_OK) { Thread.Sleep(4000); } As you can see from the method syntax it is very similar to standard windows message box. If you pass true to the 7th parameter to StartWaitDialog method, you will also see a cancel button allowing user to cancel the running task. You can react when user cancels the task as below. bool isCancelled; dialog.HasCanceled(out isCancelled); if (isCancelled) { MessageBox.Show("Cancelled"); } Finally, you can close the dialog when you complete the task running as below. int usercancel; dialog.EndWaitDialog(out usercancel); To help you quickly experience the above code, I have created a sample. It is available for download from GitHub. The sample creates a tool window with two buttons to demo the above explained scenarios. The tool window can be accessed by clicking View –> Other Windows -> ProgressDialogDemo Window

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• CodePlex Daily Summary for Tuesday, May 11, 2010

  CodePlex Daily Summary for Tuesday, May 11, 2010New ProjectsASP.NET MVC Extensions: ASP.NET MVC Extensions is developed on top of ASP.NET MVC extensibility point, which allows your IoC Container to rule everywhere.Best practices in .NET: NMA is a collection of knowledges that I learned from my co-worker and Internet. It's built on Domain Driven Design theories. I used Struture Map,...BioRider: Project participant of the 1st National Award for InteroperabilityBSoft: that's the project for bsoftClosedXML - The easy way to OpenXML: ClosedXML makes it easier for developers to create OpenXML files for Excel 2007. It provides a nice object oriented way to manipulate the files (si...Dragon Master: A tool for all D&D masters that need to create Dragon NPCsFacturator - Create invoices easy and fast: Windows forms application for creating invoices based on a Word template. Including a simple workflow for send, payed and finished invoices and a q...FreeEPG: An Australian EPG using the Freeview online guide. All Freeview regions are supported and data can be exported in either XMLTV or Microsoft Media ...GreedyRSS: Convert everything to RSS FeedHByte: In honor of the heisenberg uncertainty principle. This is an implementation of a type who has byte semantics, but who's value and location can not...JSON RPC 2.0 - Javascript/.NET Implementation: JSON RPC 2.0 - Javascript/.NET Implementation - NOT READY YETMjollnir - Supplemental Library for BCL: Mjollnir is Supplements Library for BCL. Mjollnir is Compatible with .NET Framework 4 (or maybe later).Money Spinner: MoneySpinnerMSPY 2010 Open Extended Dictionary Building Tool: A tool to create Open Extend Dictionary for Microsoft Pinyin IME 2010, it is develped in C#Sharepoint Data Store: This is a small library that lets SharePoint developers store and manage custom application information in SharePoint.SharePointSlim: We are going to use it in conjunction with the PowerSlim projectSSTA: A Tool to Compare SQL Database Schema Versionstbeasy: tbeasyNew Releases8085 Microprocessor simulator: 8085 Instruction Set Simulator with source code: 8085 Instruction set simulator with windows installer plus complete source code and examplesAutoArchive: Site Template...: Slightly off topic, but take a looK!BioRider: Uptiva Dreams IT Entry: ==================================== National Interoperability Award ==================================== TEAM: Uptiva Dreams IT PROJECT: BioRide...C# Developer Utility Library: ScrimpNet.Core Library May 2010: Initial upload of project library. Contains only source files. Recommend adding extracted files to your project as a project reference.Coot: Beta 1: To install the screen saver: Extract the contents of the zip file (all three files) to C:\Windows\System32 Go to screen saver properties, select ...Deploy Workflow Manager: Deploy Workflow Manager v1: Recommend you test on your development environment first before implementing into production. Criteria to run the workflow is assumed to be inclu...Expression Encoder 3 Visual Basic Samples: Encoder 3 VB Samples: Zip file contains the Encoder 3 samples written in Visual Basic.FreeEPG: Debug Release: Initial Release. Run the application from the command line for options. If you choose to run the client as a Windows Service, then you will need t...FSharpChess: Alpha Release 0.197: This is just the latest version of the binaries. Note that there are two excecutables: FSharpChess includes a UI partially written in C# FSharpCh...GreedyRSS: GreedyRSS V2: V2与V1相比： 改进了插件架构 用数据库取代XML配置文件 用Web Services暴露了部分功能Headspring Labs: ASP.NET MVC 2 tips and tricks (code): Contains example app that demonstrates techniques in the Tips & Tricks powerpointHeadspring Labs: ASP.NET MVC tips and tricks PPT: Powerpoint file for the ASP.NET MVC tips and tricks talk.HouseFly controls: HouseFly controls beta 1.0.0.0: HouseFly controls release 1.0.0.0 betaiTuner - The iTunes Companion: iTuner 1.2.3782: This production release of iTuner 1.2 allows you to synchronize one or more iTunes playlists to a USB MP3 player. It also provides the ability to ...JSON RPC 2.0 - Javascript/.NET Implementation: v0.7: Protocol implemented. Most of the extra features implemented.MapWindow6: MapWindow 6.0 msi May 10, 2010: This version fixes a reproject bug where false_easting from .prj files was not being correctly converted into meters when the projection was in feet.Mouse Zoom - Visual Studio Extension: MouseZoom 1.7: Version 1.7 fixes a bug that can cause the keys to stick when leaving focus (e.g. opening a VS dialog box).Mouse Zoom - Visual Studio Extension: MouseZoom 1.8: Override mouse wheel scroll functionality to always scroll 25% no matter what zoom level you are on (by default, scrolling with the mouse wheel bec...MSPY 2010 Open Extended Dictionary Building Tool: 20100511build: First release. 1. Installation After you download it to your local disk, create a new folder and unzip it to the new folder, that's it. 2. run ...MSPY 2010 Open Extended Dictionary Building Tool: 20100511build2: First release. 1. Installation After you download it to your local disk, create a new folder and unzip it to the new folder, that's it. 2. run ...Multiwfn: multiwfn1.3.2: multiwfn1.3.2NASA Space Shuttle TV Schedule Transfer to Outlook Calendar: NASA Space Shuttle TV Schedule Release v1.4.132.1: Warning!There is a problem with the latest version of the program and rev 0 of STS-132 mission schedule. I am looking into the problem when the yea...NASA Space Shuttle TV Schedule Transfer to Outlook Calendar: NASA Space Shuttle TV Schedule Release v1.4.132.2: This release fixes a problem with rev 0 of the STS-132 mission schedule in recognizing the year of launch. NASA changed the year of launch to a fo...Object/Relational Mapper & Code Generator in Net 2.0 for Relational & XML Schema: 2.8: Switched compliation options to always run in 32-bit mode, to ensure it can connect to MSAccess & MSExcel on 64-bit machines. Updated parameterised...Open NFSe: OpenNFSe-Salvador v1.0.0: Atualização do OpenNFSe-Salvador para o novo schema utilizado pela prefeitura de Salvador.OpenSLIM: OpenSLIM-v373b0-20100509-0: Here is the list of new additions and improvements that this new major release incorporates: Systems Decommissioning Management. Improvements on...Pcap.Net: Pcap.Net 0.6.0 (44468): Pcap.Net - May 2010 Release Pcap.Net is a .NET wrapper for WinPcap written in C++/CLI and C#. It Features almost all WinPcap features and includes ...PowerShell Community Extensions: 2.0 Production: PowerShell Community Extensions 2.0 Release NotesMay 10, 2010 The primary purpose of the Pscx 2.0 release is to convert from the previous approach...Scrum Sprint Monitor: v1.0.0.47921 (.NET 4-TFS 2010): What is new in this release? Minor version over 1.0.0.47911 introducing CEIP (Customer Experience Improvement Program). This is taking advantage of...Sharepoint Data Store: 1.0: First ReleaseSPVisualDev - SharePoint Developer Tool: Version 2.2.0: Visual Studio 2010 is now supported. Note that this is only intended to be used for MOSS 2007 / WSS 3.0 development and not for SP 2010. Package SP...SQL Server PowerShell Extensions: 2.2.1 Production: Release 2.2 re-implements SQLPSX as PowersShell version 2.0 modules. SQLPSX consists of 9 modules with 133 advanced functions, 2 cmdlets and 7 scri...VCC: Latest build, v2.1.30510.0: Automatic drop of latest buildVCC: Latest build, v2.1.30510.1: Automatic drop of latest buildVCC: Latest build, v2.1.30510.2: Automatic drop of latest buildVolumeMaster: Volume Master 2.0 Beta: First release of VolumeMaster. So if you're running Windows Vista / 7 you can have a handy Volume OSD and control your volume with the following sh...WabbitStudio Z80 Software Tools: SPASM2 32-Bit: A test release for SPASM2.Web Camera Shooter: 1.0.0.1: Video capturing: Touchless SDK -> AForge.Video. Main window shown in taskbar and not top most. Native images generated for all assemblies. Sm...Most Popular ProjectsWBFS ManagerRawrAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)patterns & practices – Enterprise LibraryMicrosoft SQL Server Community & SamplesASP.NETPHPExcelMost Active Projectspatterns & practices – Enterprise LibraryMirror Testing SystemThe Information Literacy Education Learning Environment (ILE)RawrCaliburn: An Application Framework for WPF and SilverlightwhiteBlogEngine.NETTweetSharpjQuery Library for SharePoint Web ServicesIonics Isapi Rewrite Filter

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• Bash completion doesn't work, or is ignoring what I've typed; but works for commands

  - by Neil Traft

  Bash completion seems to be ignoring what I've typed (it tries to complete, but acts as if there's nothing under the cursor). I know I saw it work on this machine earlier today, but I'm not sure what has changed. Some examples: cd shows all directories under my current folder: $ cd co<tab><tab> cmake/ config/ doc/ examples/ include/ programs/ sandbox/ src/ .svn/ tests/ Commands like ls and less show all files and directories under my current folder: $ ls co<tab><tab> cmake/ config/ .cproject Doxyfile.in include/ programs/ README.txt src/ tests/ CMakeLists.txt COPYING.txt doc/ examples/ mainpage.dox .project sandbox/ .svn/ Even when I try to complete things from a different folder, it gives me only the results for my current folder (telling me that it is completely ignoring what I've typed): $ cd ~/D<tab><tab> cmake/ config/ doc/ examples/ include/ programs/ sandbox/ src/ .svn/ tests/ But it seems to be working fine for commands and variables: $ if<tab><tab> if ifconfig ifdown ifnames ifquery ifup $ echo $P<tab><tab> $PATH $PIPESTATUS $PPID $PS1 $PS2 $PS4 $PWD $PYTHONPATH I do have this bit in my .bashrc, and I have confirmed that my .bashrc is indeed getting sourced: if [ -f /etc/bash_completion ] && ! shopt -oq posix; then . /etc/bash_completion fi I've even tried manually executing that file, but it doesn't fix the problem: $ . /etc/bash_completion There was even one point in time where it was working for ls, but was not working for cd ... but I can't replicate that result now. Update: I also just discovered that I have terminals open from earlier that still work. I ran source .bashrc in one of them and afterwards completion was broken. Here is my .bashrc: # ~/.bashrc: executed by bash(1) for non-login shells. # see /usr/share/doc/bash/examples/startup-files (in the package bash-doc) # for examples # # Modified by Neil Traft #source ~/.profile # Allow globs to expand hidden files shopt -s dotglob nullglob # If not running interactively, don't do anything [ -z "$PS1" ] && return # don't put duplicate lines or lines starting with space in the history. # See bash(1) for more options HISTCONTROL=ignoreboth # append to the history file, don't overwrite it shopt -s histappend # for setting history length see HISTSIZE and HISTFILESIZE in bash(1) HISTSIZE=1000 HISTFILESIZE=2000 # check the window size after each command and, if necessary, # update the values of LINES and COLUMNS. shopt -s checkwinsize # If set, the pattern "**" used in a pathname expansion context will # match all files and zero or more directories and subdirectories. #shopt -s globstar # make less more friendly for non-text input files, see lesspipe(1) [ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)" # set variable identifying the chroot you work in (used in the prompt below) if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then debian_chroot=$(cat /etc/debian_chroot) fi # Color the prompt export PS1="\[$(tput setaf 2)\]\u@\h:\[$(tput setaf 5)\]\W\[$(tput setaf 2)\] $\[$(tput sgr0)\] " # enable color support of ls and also add handy aliases if [ -x /usr/bin/dircolors ]; then test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)" alias ls='ls --color=auto' #alias dir='dir --color=auto' #alias vdir='vdir --color=auto' alias grep='grep --color=auto' alias fgrep='fgrep --color=auto' alias egrep='egrep --color=auto' fi # Add an "alert" alias for long running commands. Use like so: # sleep 10; alert alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"' # Alias definitions. # You may want to put all your additions into a separate file like # ~/.bash_aliases, instead of adding them here directly. # See /usr/share/doc/bash-doc/examples in the bash-doc package. if [ -f ~/.bash_aliases ]; then . ~/.bash_aliases fi # enable programmable completion features (you don't need to enable # this, if it's already enabled in /etc/bash.bashrc and /etc/profile # sources /etc/bash.bashrc). if [ -f /etc/bash_completion ] && ! shopt -oq posix; then . /etc/bash_completion fi

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• Use Case Actors - Primary versus Secondary

  - by Dave Burke

  The Unified Modeling Language (UML1) defines an Actor (from UseCases) as: An actor specifies a role played by a user or any other system that interacts with the subject. In Alistair Cockburn’s book “Writing Effective Use Cases” (2) Actors are further defined as follows: Primary Actor: The primary actor of a use case is the stakeholder that calls on the system to deliver one of its services. It has a goal with respect to the system – one that can be satisfied by its operation. The primary actor is often, but not always, the actor who triggers the use case. Supporting Actors: A supporting actor in a use case in an external actor that provides a service to the system under design. It might be a high-speed printer, a web service, or humans that have to do some research and get back to us. In a 2006 article (3) Cockburn refined the definitions slightly to read: Primary Actors: The Actor(s) using the system to achieve a goal. The Use Case documents the interactions between the system and the actors to achieve the goal of the primary actor. Secondary Actors: Actors that the system needs assistance from to achieve the primary actor’s goal. Finally, the Oracle Unified Method (OUM) concurs with the UML definition of Actors, along with Cockburn’s refinement, but OUM also includes the following: Secondary actors may or may not have goals that they expect to be satisfied by the use case, the primary actor always has a goal, and the use case exists to satisfy the primary actor. Now that we are on the same “page”, let’s consider two examples: A bank loan officer wants to review a loan application from a customer, and part of the process involves a real-time credit rating check. Use Case Name: Review Loan Application Primary Actor: Loan Officer Secondary Actors: Credit Rating System A Human Resources manager wants to change the job code of an employee, and as part of the process, automatically notify several other departments within the company of the change. Use Case Name: Maintain Job Code Primary Actor: Human Resources Manager Secondary Actors: None The first example is quite straight forward; we need to define the Secondary Actor because without the “Credit Rating System” we cannot successfully complete the Use Case. In other words, the goal of the Primary Actor is to successfully complete the Loan Application, but they need the explicit “help” of the Secondary Actor (Credit Rating System) to achieve this goal. The second example is where people sometimes get confused. Within OUM we would not include the “other departments” as Secondary Actors and therefore not include them on the Use Case diagram for the following reasons: The other departments are not required for the successful completion of the Use Case We are not expecting any response from the other departments (at least within the bounds of the Use Case under discussion) Having said that, within the detail of the Use Case Specification Main Success Scenario, we would include something like: “The system sends a notification to the related department heads (ref. Business Rule BR101)” Now let’s consider one final example. A Procurement Manager wants to place a “bid” for some goods using an On-Line Trading Community (B2B version of eBay) Use Case Name: Create Bid Primary Actor: Procurement Manager Secondary Actors: On-Line Trading Community You might wonder why the Trading Community is listed as a Secondary Actor, i.e. if all we are going to do is place a bid for a specific quantity of goods at a given price and send that off to the Trading Community, then why would the Trading Community need to “assist” in that Use Case? Well, once again, it comes back to the “User Experience” and how we want to optimize that when we think about our Use Case, and ultimately, when the developer comes to assembling some code. In this final example, the Procurement Manager cannot successfully complete the “Create Bid” Use Case until they receive an affirmative confirmation back from the Trading Community that the Bid has been accepted. Therefore, the Trading Community must become a Secondary Actor and be referenced both on the Use Case diagram and Use Case Specification. Any astute readers who are wondering about the “single sitting” rule will have to wait for a follow-up Blog entry to find out how that consideration can be factored in!!! Happy Use Case writing! (1) OMG Unified Modeling LanguageTM (OMG UML), Superstructure Version 2.4.1 (2) Cockburn, A, 2000, Writing Effective Use Case, Addison-Wesley Professional; Edition 1 (3) Cockburn, A, 2006 “Use Case fundamentals” viewed 20th March 2012, http://alistair.cockburn.us/Use+case+fundamentals

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• "ERROR:Could not find java.nio.file.Paths" when using Oracle JDK 1.7

  - by Ankit

  I want to try out some features rolled out in Oracle's new JDK 1.7. I followed the post:- Oracle JDK 1.7 but the post doesn't seem to help. I was trying to fetch out the structure for java.nio.file.Paths class file but got the following error:- buffer@ankit:~$ javap java.nio.file.Paths ERROR:Could not find java.nio.file.Paths However i can easily get the information about class structures till JAVA SE 1.6, here is an example:- buffer@ankit:~$ javap java.lang.Object Compiled from "Object.java" public class java.lang.Object{ public java.lang.Object(); public final native java.lang.Class getClass(); public native int hashCode(); public boolean equals(java.lang.Object); protected native java.lang.Object clone() throws java.lang.CloneNotSupportedException; public java.lang.String toString(); public final native void notify(); public final native void notifyAll(); public final native void wait(long) throws java.lang.InterruptedException; public final void wait(long, int) throws java.lang.InterruptedException; public final void wait() throws java.lang.InterruptedException; protected void finalize() throws java.lang.Throwable; static {}; } Running java -version gives the following result:- buffer@ankit:~$ java -version java version "1.7.0_09" Java(TM) SE Runtime Environment (build 1.7.0_09-b05) Java HotSpot(TM) 64-Bit Server VM (build 23.5-b02, mixed mode) SYSTEM INFORMATION buffer@ankit:~$ sudo update-alternatives --config java [sudo] password for buffer: There are 4 choices for the alternative java (providing /usr/bin/java). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java 1061 auto mode 1 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/java 1061 manual mode 2 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java 1051 manual mode 3 /usr/lib/jvm/jdk1.7.0_09/ 1 manual mode * 4 /usr/lib/jvm/jdk1.7.0_09/bin/java 1 manual mode buffer@ankit:~$ sudo update-alternatives --config javac There are 2 choices for the alternative javac (providing /usr/bin/javac). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/lib/jvm/java-6-openjdk-amd64/bin/javac 1061 auto mode 1 /usr/lib/jvm/java-6-openjdk-amd64/bin/javac 1061 manual mode * 2 /usr/lib/jvm/jdk1.7.0_09/bin/javac 1 manual mode buffer@ankit:~$ sudo update-alternatives --config javaws There are 3 choices for the alternative javaws (providing /usr/bin/javaws). Selection Path Priority Status ------------------------------------------------------------ 0 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws 1061 auto mode 1 /usr/lib/jvm/java-6-openjdk-amd64/jre/bin/javaws 1061 manual mode 2 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/javaws 1060 manual mode * 3 /usr/lib/jvm/jdk1.7.0_09/bin/javaws 1 manual mode The directory structure of /usr/lib/jvm/ is as follows:- buffer@ankit:~$ ls -l /usr/lib/jvm/ total 24 lrwxrwxrwx 1 root root 24 Dec 2 2011 default-java -> java-1.6.0-openjdk-amd64 drwxr-xr-x 4 root root 4096 Nov 8 16:24 java-1.5.0-gcj-4.6 lrwxrwxrwx 1 root root 24 Dec 2 2011 java-1.6.0-openjdk -> java-1.6.0-openjdk-amd64 lrwxrwxrwx 1 root root 20 Oct 25 00:01 java-1.6.0-openjdk-amd64 -> java-6-openjdk-amd64 lrwxrwxrwx 1 root root 20 Oct 25 06:59 java-1.7.0-openjdk-amd64 -> java-7-openjdk-amd64 lrwxrwxrwx 1 root root 24 Dec 2 2011 java-6-openjdk -> java-1.6.0-openjdk-amd64 drwxr-xr-x 7 root root 4096 Nov 8 16:24 java-6-openjdk-amd64 drwxr-xr-x 3 root root 4096 Nov 8 16:24 java-6-openjdk-common drwxr-xr-x 5 root root 4096 Nov 8 05:48 java-7-openjdk-amd64 drwxr-xr-x 3 root root 4096 Nov 8 05:48 java-7-openjdk-common drwxr-xr-x 8 buffer buffer 4096 Sep 25 09:08 jdk1.7.0_09 Any help would be highly appreciated.

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• Data Security Through Structure, Procedures, Policies, and Governance

  Security Structure and Procedures One of the easiest ways to implement security is through the use of structure, in particular the structure in which data is stored. The preferred method for this through the use of User Roles, these Roles allow for specific access to be granted based on what role a user plays in relation to the data that they are manipulating. Typical data access actions are defined by the CRUD Principle. CRUD Principle: Create New Data Read Existing Data Update Existing Data Delete Existing Data Based on the actions assigned to a role assigned, User can manipulate data as they need to preform daily business operations.  An example of this can be seen in a hospital where doctors have been assigned Create, Read, Update, and Delete access to their patient’s prescriptions so that a doctor can prescribe and adjust any existing prescriptions as necessary. However, a nurse will only have Read access on the patient’s prescriptions so that they will know what medicines to give to the patients. If you notice, they do not have access to prescribe new prescriptions, update or delete existing prescriptions because only the patient’s doctor has access to preform those actions. With User Roles comes responsibility, companies need to constantly monitor data access to ensure that the proper roles have the most appropriate access levels to ensure users are not exposed to inappropriate data.  In addition this also protects rouge employees from gaining access to critical business information that could be destroyed, altered or stolen. It is important that all data access is monitored because of this threat. Security Governance Current Data Governance laws regarding security Health Insurance Portability and Accountability Act (HIPAA) Sarbanes-Oxley Act Database Breach Notification Act The US Department of Health and Human Services defines HIIPAA as a Privacy Rule. This legislation protects the privacy of individually identifiable health information. Currently, HIPAA   sets the national standards for securing electronically protected health records. Additionally, its confidentiality provisions protect identifiable information being used to analyze patient safety events and improve patient safety. In 2002 after the wake of the Enron and World Com Financial scandals Senator Paul Sarbanes and Representative Michael Oxley lead the creation of the Sarbanes-Oxley Act. This act administered by the Securities and Exchange Commission (SEC) dramatically altered corporate financial practices and data governance. In addition, it also set specific deadlines for compliance. The Sarbanes-Oxley is not a set of standard business rules and does not specify how a company should retain its records; In fact, this act outlines which pieces of data are to be stored as well as the storage duration. The Database Breach Notification Act requires companies, in the event of a data breach containing personally identifiable information, to notify all California residents whose information was stored on the compromised system at the time of the event, according to Gregory Manter. He further explains that this act is only California legislation. However, it does affect “any person or business that conducts business in California, and that owns or licenses computerized data that includes personal information,” regardless of where the compromised data is located.  This will force any business that maintains at least limited interactions with California residents will find themselves subject to the Act’s provisions. Security Policies All companies must work in accordance with the appropriate city, county, state, and federal laws. One way to ensure that a company is legally compliant is to enforce security policies that adhere to the appropriate legislation in their area or areas that they service. These types of polices need to be mandated by a company’s Security Officer. For smaller companies, these policies need to come from executives, Directors, and Owners.

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• Question on the implementation of my Entity System

  - by miguel.martin

  I am currently creating an Entity System, in C++, it is almost completed (I have all the code there, I just have to add a few things and test it). The only thing is, I can't figure out how to implement some features. This Entity System is based off a bit from the Artemis framework, however it is different. I'm not sure if I'll be able to type this out the way my head processing it. I'm going to basically ask whether I should do something over something else. Okay, now I'll give a little detail on my Entity System itself. Here are the basic classes that my Entity System uses to actually work: Entity - An Id (and some methods to add/remove/get/etc Components) Component - An empty abstract class ComponentManager - Manages ALL components for ALL entities within a Scene EntitySystem - Processes entities with specific components Aspect - The class that is used to help determine what Components an Entity must contain so a specific EntitySystem can process it EntitySystemManager - Manages all EntitySystems within a Scene EntityManager - Manages entities (i.e. holds all Entities, used to determine whether an Entity has been changed, enables/disables them, etc.) EntityFactory - Creates (and destroys) entities and assigns an ID to them Scene - Contains an EntityManager, EntityFactory, EntitySystemManager and ComponentManager. Has functions to update and initialise the scene. Now in order for an EntitySystem to efficiently know when to check if an Entity is valid for processing (so I can add it to a specific EntitySystem), it must recieve a message from the EntityManager (after a call of activate(Entity& e)). Similarly the EntityManager must know when an Entity is destroyed from the EntityFactory in the Scene, and also the ComponentManager must know when an Entity is created AND destroyed. I do have a Listener/Observer pattern implemented at the moment, but with this pattern I may remove a Listener (which is this case is dependent on the method being called). I mainly have this implemented for specific things related to a game, i.e. Teams, Tagging of entities, etc. So... I was thinking maybe I should call a private method (using friend classes) to send out when an Entity has been activated, deleted, etc. i.e. taken from my EntityFactory void EntityFactory::killEntity(Entity& e) { // if the entity doesn't exsist in the entity manager within the scene if(!getScene()->getEntityManager().doesExsist(e)) { return; // go back to the caller! (should throw an exception or something..) } // tell the ComponentManager and the EntityManager that we killed an Entity getScene()->getComponentManager().doOnEntityWillDie(e); getScene()->getEntityManager().doOnEntityWillDie(e); // notify the listners for(Mouth::iterator i = getMouth().begin(); i != getMouth().end(); ++i) { (*i)->onEntityWillDie(*this, e); } _idPool.addId(e.getId()); // add the ID to the pool delete &e; // delete the entity } As you can see on the lines where I am telling the ComponentManager and the EntityManager that an Entity will die, I am calling a method to make sure it handles it appropriately. Now I realise I could do this without calling it explicitly, with the help of that for loop notifying all listener objects connected to the EntityFactory's Mouth (an object used to tell listeners that there's an event), however is this a good idea (good design, or what)? I've gone over the PROS and CONS, I just can't decide what I want to do. Calling Explicitly: PROS Faster? Since these functions are explicitly called, they can't be "removed" CONS Not flexible Bad design? (friend functions) Calling through Listener objects (i.e. ComponentManager/EntityManager inherits from a EntityFactoryListener) PROS More Flexible? Better Design? CONS Slower? (virtual functions) Listeners can be removed, i.e. may be removed and not get called again during the program, which could cause in a crash. P.S. If you wish to view my current source code, I am hosting it on BitBucket.

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