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• ISP 5 Device Limit ... again

  - by Tommo

  Sorry for the delay in responding to the suggestions that were posted in my first question (ISP 5 Device Limit - double NAT the solution?). I've been travelling and have not been able to try anything. Below is what I've tried and where I have not been successful. Any more help gratefully appreciated. I figure I need to give a more comprehensive overview of what I've got and how it's set up. First of all - I am using all Apple products here. I am iMac, iPad, iPhone, Apple TV, Airport Express and Time Capsule. I used to like the way that it 'just worked'. Now I find that it requires a bit of encouragement before it 'just works'. So, as I stated in my original question; my ISP has a router in my building that is limiting me to 5 devices. I am hard wired into this router and I can neither access it physically nor logically (they won't let me access it). Also, I only appear to be able to connect to it through the LAN ports on my Time Capsule. Any device I connect appears to be on a rolling IP list with the following settings: Router 91.72.80.1 Devices then get assigned IPv4 addresses in the range (as far as I can see) from 91.72.80.2 onwards. SubNet Mask 255.255.255.0 DNS Servers 213.132.63.25, 80.227.2.4 I have my Time Capsule / Router in Bridge-Mode which means I am limited to the 5 devices and cannot use Guest Networks etc. What I've tried today. Static IPs: On all devices, I went from DHCP to Static and put in the same information when they had connected using DHCP. Somewhat surprisingly this did not work. None of the devices enjoyed any connection to the router and certainly no internet connection. Intentional Double-NAT - Time Capsule to 'DHCP and NAT': By selecting DHCP and NAT on my Router I was able to connect devices to my Time Capsule in the range 10.0.1.2 to 10.0.1.200. This offered no internet connectivity and didn't really help the situation. In this mode, however, I was able to force the devices - individually and laboriously - to look for the Router and previously listed DNSs by inputting the numbers from 'Bridge-mode' into the STATIC settings and then resetting the connection. The Router then appeared to assign a distinct IP address to the device and it worked on the network. I had this working for more than 5 devices. However, this is not a great solution because as soon as one of the mobile devices left the building it needed repointing to the Router. The connections were also not very stable. Especially when trying to hold onto a VPN. Spoofing a few MAC addresses: I'm afraid I don't really know what this would achieve, nor how to do it on an Apple device… So … I'm almost back at Square One. I have had to withdraw to the Bridge-Mode position again with the 5 device limit to see if there's a better course of action to follow. ANY help would be much appreciated. I am positive that I cannot be the only one suffering under this 5 device limit!

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• SQL Server 2000 and SSL Encryption

  - by Angry_IT_Guru

  We are a datacenter that hsots a SQL Server 2000 environment which provides database services for a product we sell that is loaded as a rich-client applicatin at each of our many clients and their workstations. Currently today, the application uses straight ODBC connections from the client site to our datacenter. We need to begin encrypting the credentials -- since everything is clear-text today and the authentication is weakly encrypted -- and I'm trying to determine the best way to implement SSL on the server with minimizing the impact of the client. A few things, however: 1) We have our own Windows domain and all our servers are joined to our private domain. Our clietns no nothing of our domain. 2) Typically, our clients connect to our datacenter servers either by: a) Using TCP/IP address b) Using a DNS name that we publish via internet, zone transfers from our DNS servers to our customers, or the client can add static HOSTS entries. 3) From what I understand from enabling encryption is that I can go to the Network Utility and select the "encryption" option for the protocol that I wish to encrypt. Such as TCP/IP. 4) When the encryption option is selected, I have a choice of installing a third-party certificate or a self-signed. I have tested the self-signed, but do have potential issues. I'll explain in a bit. If I go with a third-party cert, such as Verisign, or Network solutions... what kind of certificate do I request? These aren't IIS certificates? When I go create a self-signed via Microsoft's certificate server, I have to select "Authentication certificate". What does this translate to in the third-party world? 5) If I create a self-signed certificate, I understand that the "issue to" name has to match the FQDN for the server that is running SQL. In my case, I have to use my private domain name. If I use this, what does this do for my clients when trying to connect to my SQL Server? Surely they cannot resolve my private DNS names on their network.... I've also verified that when the self-signed certificate is installed, it has to be in the local personal store for the user account that is running SQL Server. SQL Server will only start if the FQDN matches the "issue to" of the certificate and SQL is running under the account that has the certificate installed. If I use a self-signed certificate, does this mean I have to have every one of my clients install it to verify? 6) If I used a third-party certificate, which sounds like the best option, do all my clients have to have internet access when accessing my private servers of their private WAN connection to use to verify the certificate? What do I do about the FQDN? It sounds like they have to use my private domain name -- which is not published -- and can no longer use the one that I setup for them to use? 7) I plan on upgrading to SQL 2000 soon. Is setup of SSL any easier/better with SQL 2005 than SQL 2000? Any help or guiadance would be appreciated

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• Issue in nginx proxying to apache

  - by Luis Masuelli

  My current nginx configuration is as follows: specific configuration for (currently two) domains: server { listen 443 ssl; server_name studiotv.service.tebusco.lan phpmyadmin.service.tebusco.lan; ssl_certificate /home/administrador/nginx-confs/ssl/service.tebusco.lan.crt; ssl_certificate_key /home/administrador/nginx-confs/ssl/service.tebusco.lan.key; location / { proxy_pass http://127.0.0.1:8180; proxy_set_header Host $http_host:8180; } } default configuration for unmatched ssl connections: server { listen 443 default ssl; ssl_certificate /home/administrador/nginx-confs/ssl/service.tebusco.lan.crt; ssl_certificate_key /home/administrador/nginx-confs/ssl/service.tebusco.lan.key; location / { return 403; } } http configuration: server { listen 80; rewrite ^ https://$host$request_uri? permanent; } The intention is clear: Redirect http traffic to https. Proxy each https:// call from phpmyadmin.service.tebusco.lan and studiotv.service.tebusco.lan to apache2. This includes passing a host header, which is detected. Each unmatched ssl connection must return a 403 in nginx. Does not even reach apache2. In the apache2 side of the life, I have a default site, and a non-default site which will match studiotv.service.tebusco.lan: 000-default.conf file (available and enabled): <VirtualHost 127.0.0.1:8180> # The ServerName directive sets the request scheme, hostname and port that # the server uses to identify itself. This is used when creating # redirection URLs. In the context of virtual hosts, the ServerName # specifies what hostname must appear in the request's Host: header to # match this virtual host. For the default virtual host (this file) this # value is not decisive as it is used as a last resort host regardless. # However, you must set it for any further virtual host explicitly. ServerName localhost ServerAdmin webmaster@localhost DocumentRoot /var/www/html <Directory /var/www/html> Order deny,allow Require all granted </Directory> </VirtualHost> # vim: syntax=apache ts=4 sw=4 sts=4 sr noet studiotv.conf file (available and enabled): <VirtualHost *:8180> ServerName studiotv.service.tebusco.lan ServerAdmin [email protected] DocumentRoot /var/www/studiotv <Directory /var/www/studiotv/> Options -Indexes +FollowSymLinks AllowOverride None Order deny,allow Allow from all Require all granted </Directory> # Available loglevels: trace8, ..., trace1, debug, info, notice, warn, # error, crit, alert, emerg. # It is also possible to configure the loglevel for particular # modules, e.g. #LogLevel info ssl:warn # No usamos ${APACHE_LOG_DIR} sino en su lugar /var/log/<host> ErrorLog /var/log/apache2/studiotv/error.log CustomLog /var/log/apache2/studiotv/access.log combined </VirtualHost> # vim: syntax=apache ts=4 sw=4 sts=4 sr noet However, when I hit the browser with http://studiotv.service.tebusco.lan, the default php page is shown instead. Question: What am I missing? (apache 2.4.7, nginx 1.6.0, ubuntu server 14.04).

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• Print directly to CUPS server from non-local clients (Ubuntu 14.04)

  - by OEP

  I set up a CUPS server with a few queues and printing from local clients (the CUPS test page and Samba) seems to work just fine. It seems like the CUPS server is denying non-local clients though: 130.127.48.70 - - [03/Jun/2014:14:29:19 -0400] "POST /printers/m137 HTTP/1.1" 200 390 Validate-Job successful-ok 130.127.48.70 - - [03/Jun/2014:14:29:19 -0400] "POST /printers/m137 HTTP/1.1" 200 339 Create-Job client-error-not-authorized localhost - - [03/Jun/2014:14:40:50 -0400] "POST /printers/m137 HTTP/1.1" 200 410869 Print-Job successful-ok This makes me think I have some sort of host-based restriction in my configuration file, but I can't find it. I've even set my default policy to Allow all only to get the same log message. I'm working from a configuration file which had previously worked on an older version of CUPS, which looks quite similar to the example cupsd.conf. I could be wrong but it looks like that final <Limit All> block ought to allow the actions the logs complain about. MaxLogSize 2000000000 # Log general information in error_log - change "info" to "debug" for # troubleshooting... LogLevel info #AccessLog syslog #ErrorLog syslog #PageLog syslog # Administrator user group... SystemGroup sys root lp # Only listen for connections from the local machine. Listen 0.0.0.0:631 Listen :::631 Listen /var/run/cups/cups.sock ServerName <snipped> # Show shared printers on the local network. Browsing Off BrowseOrder allow,deny # (Change '@LOCAL' to 'ALL' if using directed broadcasts from another subnet.) BrowseAllow @LOCAL # Default authentication type, when authentication is required... DefaultAuthType Basic # Restrict access to the server... <Location /> Order allow,deny Allow all </Location> # Restrict access to the admin pages... <Location /admin> AuthType Default Require user @SYSTEM Encryption Required Order allow,deny Allow all </Location> # Restrict access to configuration files... <Location /admin/conf> AuthType Default Require user @SYSTEM Encryption Required Order allow,deny Allow all </Location> # Set the default printer/job policies... <Policy default> # Job-related operations must be done by the owner or an administrator... <Limit Send-Document Send-URI Hold-Job Release-Job Restart-Job Purge-Jobs Set-Job-Attributes Create-Job-Subscription Renew-Subscription Cancel-Subscription Get-Notifications Reprocess-Job Cancel-Current-Job Suspend-Current-Job Resume-Job CUPS-Move-Job> Require user @OWNER @SYSTEM Order deny,allow </Limit> # All administration operations require an administrator to authenticate... <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default> AuthType Default Require user @SYSTEM Order deny,allow </Limit> # All printer operations require a printer operator to authenticate... <Limit Pause-Printer Resume-Printer Enable-Printer Disable-Printer Pause-Printer-After-Current-Job Hold-New-Jobs Release-Held-New-Jobs Deactivate-Printer Activate-Printer Restart-Printer Shutdown-Printer Startup-Printer Promote-Job Schedule-Job-After CUPS-Accept-Jobs CUPS-Reject-Jobs> AuthType Default Require user @SYSTEM Order deny,allow </Limit> # Only the owner or an administrator can cancel or authenticate a job... <Limit Cancel-Job CUPS-Authenticate-Job> Require user @OWNER @SYSTEM Order deny,allow </Limit> <Limit All> Order allow,deny </Limit> </Policy>

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• Optimise Apache for EC2 micro instance

  - by Shiyu Sekam

  I'm running apache2 on a EC2 micro instance with ~600 mb RAM. The instance was running for almost a year without problems, but in the last weeks it just keeps crashing, because the server reached MaxClients. The server basically runs few websites, one wordpress blog(not often used), company website(most used) and 2 small sites, which are just internal. The database for the blog runs on RDS, so there's no Mysql running on this web server. When I came to the company, the server already was setup and is running apache + mod_php + prefork. We want to migrate that in the future to a nginx + php-fpm, but it still needs further testing. So for now I have to stick with the old setup. I also use CloudFlare DDOS protection in front of the server, because it was attacked a couple of the times in the last weeks. My company don't want to pay money for a better web server at this point, so I have to stick with the micro instance also. Additionally the code for the website we run is really bad and slow and sometimes a single page load can take up to 15 seconds. The whole website is dynamic and written in PHP, so caching isn't really an option here. It's a customized search for users. I've already turned off KeepAlive, which improved the performance a little bit. My prefork config looks like the following: StartServers 2 MinSpareServers 2 MaxSpareServers 5 ServerLimit 10 MaxClients 10 MaxRequestsPerChild 100 The server just becomes unresponsive after a while running and I've run the following command to see how many connections there are: netstat | grep http | wc -l 75 Trying to restart apache helps for a short moment, but after that a while the apache process(es) become unresponsive again. I've the following modules enabled(output of apache2ctl -M) Loaded Modules: core_module (static) log_config_module (static) logio_module (static) version_module (static) mpm_prefork_module (static) http_module (static) so_module (static) alias_module (shared) authz_host_module (shared) deflate_module (shared) dir_module (shared) expires_module (shared) mime_module (shared) negotiation_module (shared) php5_module (shared) rewrite_module (shared) setenvif_module (shared) ssl_module (shared) status_module (shared) Syntax OK apache2.conf # Security ServerTokens OS ServerSignature On TraceEnable On ServerName "web.example.com" ServerRoot "/etc/apache2" PidFile ${APACHE_PID_FILE} Timeout 30 KeepAlive off User www-data Group www-data AccessFileName .htaccess <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy all </Files> <Directory /> Options FollowSymLinks AllowOverride None </Directory> DefaultType none HostnameLookups Off ErrorLog /var/log/apache2/error.log LogLevel warn EnableSendfile On #Listen 80 Include /etc/apache2/mods-enabled/*.load Include /etc/apache2/mods-enabled/*.conf Include /etc/apache2/ports.conf LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %b" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent Include /etc/apache2/conf.d/*.conf Include /etc/apache2/sites-enabled/*.conf Vhost of main site <VirtualHost *:80> ServerName www.example.com ## Vhost docroot DocumentRoot /srv/www/jenkins/Web ## Directories, there should at least be a declaration for /srv/www/jenkins/Web <Directory /srv/www/jenkins/Web> AllowOverride All Order allow,deny Allow from all </Directory> ## Load additional static includes ## Logging ErrorLog /var/log/apache2/www.example.com.error.log LogLevel warn ServerSignature Off CustomLog /var/log/apache2/www.example.com.access.log combined ## Rewrite rules RewriteEngine On RewriteCond %{HTTP_HOST} !^www.example.com$ RewriteRule ^.*$ http://www.example.com%{REQUEST_URI} [R=301,L] ## Server aliases ServerAlias www.example.invalid ServerAlias example.com ## Custom fragment <Location /srv/www/jenkins/Web/library> Order Deny,Allow Deny from all </Location> <Files ~ "^\.(.+)"> Order deny,allow deny from all </Files> </VirtualHost>

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• Apache Getting Bogged Down By Certain Script (Wp-Cron.php) - How To Kill Process Automatically

  - by user50037

  I have a server that is running a number of wordpress blogs, and a number of them have several hundred/thousand posts. Every couple of days, the server slows to a crawl due to a file being run on Wordpress called WP-cron.php. My entire apache process log turns into this : http:// imgur.com/A7K9k.png Times that by quite a bit. And server no go. Each process takes up about 1.1% of ram. And when we have 50 of them on the go. It gets insane. Not all of them are coming from the same blog, they are pretty widespread. In the Apache process page of WHM, they are usually ALL set to the status of "C", which means closing. But they can sit there until they crash the server, and they still hold the memory. Just google "wp-cron.php load" and you will find plenty of people with similar issues. In anycase, we have think it is down to users adding a tonne of dead "pinglists" to their wordpress installation. Which in turn wordpress loops through them endlessly. Problem number 1. Does anyone have any other suggestions about what would cause the Wordpress file wp-cron.php to loop endlessly. I still think it is down to pings, because all of the people we have contacted about their account load going sky high, have had massive ping lists. Problem number 2. Even if it is down to excessive pinglists in wordpress. We cannot be babying every single account on the server waiting for it to start spawning the wp-cron processes. It often happens overnight, and I start getting SMS alerts at 2am about the load. I have CSF installed, which apparently would have ended the processes if they ran over XXX time. But I have been told that it won't catch the processes because they end up in this state of "closing" (They show up as "C" on the Apache page of WHM). Apparently CSF will only kill processes that are "running" which C does not count. I have seen various other scripts such as : http://dltj.org/article/die-apache-die/ . I took a look at the stat of /proc. But I was boggled at which delimited part was the time running. And if there was any way I could connect it back to an actual Apache process, so that I could see what file was running (So only close connections connected to wp-cron.php, with a state of "C"). Overall I know Problem 2 glosses over the real reason. But I do put the whole thing to excessive pinglists in Wordpress. But I just cannot sit there and babysit every single installation 24/7. So I need a way to save the server when I am not available. Any help would be much appreciated.

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• MySQL crash. Unknown cause. Signal 11

  - by fortmac

  This is a database that I installed ~6 months ago and had been running fine. This is currently running in Ubuntu 12.04. Attempting to connect to MySQL causes this error: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111) Then theres: $ sudo mysqld which returns: 130702 15:38:54 [Note] Plugin 'FEDERATED' is disabled. 130702 15:38:54 InnoDB: The InnoDB memory heap is disabled 130702 15:38:54 InnoDB: Mutexes and rw_locks use GCC atomic builtins 130702 15:38:54 InnoDB: Compressed tables use zlib 1.2.3.4 130702 15:38:54 InnoDB: Initializing buffer pool, size = 128.0M 130702 15:38:54 InnoDB: Completed initialization of buffer pool 130702 15:38:54 InnoDB: highest supported file format is Barracuda. InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number in the ib_logfiles! 130702 15:38:54 InnoDB: Database was not shut down normally! InnoDB: Starting crash recovery. InnoDB: Reading tablespace information from the .ibd files... InnoDB: Restoring possible half-written data pages from the doublewrite InnoDB: buffer... 130702 15:38:55 InnoDB: Waiting for the background threads to start 130702 15:38:56 InnoDB: 1.1.8 started; log sequence number 5201901917 130702 15:38:56 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306 130702 15:38:56 [Note] - '127.0.0.1' resolves to '127.0.0.1'; 130702 15:38:56 [Note] Server socket created on IP: '127.0.0.1'. 130702 15:38:56 [Note] Event Scheduler: Loaded 0 events 130702 15:38:56 [Note] mysqld: ready for connections. Version: '5.5.28-0ubuntu0.12.04.3' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu) 19:39:02 UTC - mysqld got signal 11 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=16777216 read_buffer_size=131072 max_used_connections=1 max_threads=151 thread_count=1 connection_count=1 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 346681 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7f9509e51530 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 7f94f1d3de60 thread_stack 0x30000 mysqld(my_print_stacktrace+0x29)[0x7f95083427b9] mysqld(handle_fatal_signal+0x483)[0x7f9508209b43] /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7f9506f5bcb0] mysqld(+0x320e1c)[0x7f9508113e1c] mysqld(_ZN4JOIN15alloc_func_listEv+0x9c)[0x7f950812391c] mysqld(_ZN4JOIN7prepareEPPP4ItemP10TABLE_LISTjS1_jP8st_orderS7_S1_S7_P13st_select_lexP18st_select_lex_unit+0x918)[0x7f9508124658] mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_ES2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_select_lex+0x130)[0x7f950812d060] mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x17c)[0x7f9508132fbc] mysqld(+0x2f6714)[0x7f95080e9714] mysqld(_Z21mysql_execute_commandP3THD+0x16d8)[0x7f95080f1178] mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x10f)[0x7f95080f5e0f] mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x1380)[0x7f95080f7260] mysqld(_Z24do_handle_one_connectionP3THD+0x1bd)[0x7f950819b80d] mysqld(handle_one_connection+0x50)[0x7f950819b870] /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7f9506f53e9a] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f9506684cbd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7f94e0004b80): is an invalid pointer Connection ID (thread ID): 1 Status: NOT_KILLED The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains information that should help you find out what is causing the crash. I'm at a loss. What other reports would be useful in diagnosing this? /var/log/mysql.err & /var/log/mysql.log are empty.

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• Lockdown users on Windows Server 2012

  - by el.severo

  I set up a Active Directory on a server machine with Windows Server 2012 and I'd like to create some users with limitations like Windows Steady State does in Windows XP (locally). Seen already the Windows SteadyState Handbook (with Windows Server 2008), but I'd like to know if anyone has tried this before, the limitations are the following: 1. Prevent locked or roaming user profiles that cannot be found on the computer from logging on 2. Do not cache copies of locked or roaming user profiles for users who have previously logged on to this computer 3. Do not allow Windows to compute and store passwords using LAN Manager Hash values 4. Do not store usernames or passwords used to log on to the Windows Live ID or the domain 5. Prevent users from creating folders and files on drive C:\ 6. Lock profile to prevent the user from making permanent changes 7. Remove the Control Panel, Printer and Network Settings from the Classic Start menu 8. Remove the Favorites icon 9. Remove the My Network Places icon 10. Remove the Frequently Used Program list 11. Remove the Shared documents folder from My Computer 12. Remove control Panel icon 13. Remove the Set Program Access and Defaults icon 14. Remove the Network Connection(Connect To)icon 15. Remove the Printers and Faxes icon 16. Remove the Run icon 17. Prevent access to Windows Explorer features: Folder Options, Customize Toolbar, and the Notification Area 18. Prevent access to the taskbar 19. Prevent access to the command prompt 20. Prevent access to the registry editor 21. Prevent access to the Task Manager 22. Prevent access to Microsoft Management Console utilities 23. Prevent users from adding or removing printers 24. Prevent users from locking the computer 25. Prevent password changes (also requires the Control Panel icon to be removed) 26. Disable System Tools and other management programs 27. Prevent users from saving files to the desktop 28. Hide A Drive 29. Hide B Drive 30. Hide C Drive 31. Prevent changes to Internet Explorer registry settings 32. Empty the Temporary Internet Files folder when Internet Explorer is closed 33. Remove Internet Options 34. Remove General tab in Internet Options 35. Remove Security tab in Internet Options 36. Remove Privacy tab in Internet Options 37. Remove Content tab in Internet Options 38. Remove Connections tab in Internet Options 39. Remove Programs tab in Internet Options 40. Remove Advanced tab in Internet Options 41. Set a home page (Internet Explorer) 42. Restrict the possibility to change desktop image 43. Restrict the possibility to change wallpaper 44. Restrict usb flash drives Any suggestions for this? UPDATE: As @Dan suggested me I'd like to specify that would be applied to a educational scenario where students can login from a computer and want to add some restrictions to them.

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• Cablemodem (SBG6580) firewall denying some outbound traffic? Why? Not configured [migrated]

  - by lairdb

  I finally got around to turning the syslog on for my cablemodem (Motorola Surfboard SBG6580) and I'm seeing about the expected amount of inbound attackage being blocked... 2014-05-30 21:59:02 Local0.Alert 192.168.111.1 May 31 04:58:56 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,4500 --> 66.27.xx.xx,61459 DENY:Firewall interface [IP Fragmented Packet] attack 2014-05-30 21:59:02 Local0.Alert 192.168.111.1 May 31 04:58:56 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 17.172.232.109,5223 --> 66.27.xx.xx,53814 DENY:Firewall interface access request 2014-05-30 21:59:02 Local0.Alert 192.168.111.1 May 31 04:58:57 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,443 --> 66.27.xx.xx,53385 DENY: Firewall interface [IP Fragmented Packet] attack 2014-05-30 21:59:02 Local0.Alert 192.168.111.1 May 31 04:58:57 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,4500 --> 66.27.xx.xx,61459 DENY:Firewall interface [IP Fragmented Packet] attack 2014-05-30 21:59:10 Local0.Alert 192.168.111.1 May 31 04:59:04 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,443 --> 66.27.xx.xx,59960 DENY: Firewall interface [IP Fragmented Packet] attack 2014-05-30 21:59:10 Local0.Alert 192.168.111.1 May 31 04:59:04 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,4500 --> 66.27.xx.xx,61459 DENY:Firewall interface [IP Fragmented Packet] attack ...and that's great. (Sad, but great.) But I'm also seeing a HUGE amount of what appears to be denied outbound connectivity: 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58969 --> 38.81.66.127,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58969 --> 38.81.66.127,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58965 --> 162.222.41.13,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58965 --> 162.222.41.13,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58964 --> 38.81.66.179,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58964 --> 38.81.66.179,443 DENY: Inbound or outbound access request ...and Spot checking suggests that it's all legitimate traffic (Opening connections to CrashPlan, etc.), I have no restrictions configured in the modem; I don't see why it should be blocking anything. Am I misreading the log entry, and it's not actually being denied? (Seems unlikely.) Is the ISP (TWC) pushing deny tables that are not exposed in the UI? (Tinfoil hat too tight.) I'm confused. (The good news, such as it is, is that AFAIK I'm not experiencing any actual issues... but maybe I am; tough to tell.) Thanks.

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• Can not open port 3306 on Ubuntu using iptables

  - by user94626

  I am trying to open port 3306 (for remote mysql connections) on my ubuntu 12.04 server machine but for the life of me can't get the damned thing to work! Here is what I did: 1) list current firewall rules: $> sudo iptables -nL -v output: Chain INPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 225 16984 fail2ban-ssh tcp -- * * 0.0.0.0/0 0.0.0.0/0 multiport dports 22 220 69605 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0 0 0 REJECT all -- lo * 0.0.0.0/0 127.0.0.0/8 reject-with icmp-port-unreachable 486 54824 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 1 60 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 19 988 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:443 1 52 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 8 4 208 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 limit: avg 5/min burst 5 LOG flags 0 level 7 prefix "iptables denied: " 4 208 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 735 182K ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 Chain fail2ban-ssh (1 references) pkts bytes target prot opt in out source destination 225 16984 RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 2) try to connect from remote machine: $> mysql -u root -p -h x.x.x.x output: timeout.... failed to connect 3) try to add a new rule to iptables: iptables -A INPUT -i eth0 -p tcp -m tcp --dport 3306 -j ACCEPT 4) make sure the new rule is added: $> sudo iptables -nL -v output: Chain INPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 359 25972 fail2ban-ssh tcp -- * * 0.0.0.0/0 0.0.0.0/0 multiport dports 22 251 78665 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0 0 0 REJECT all -- lo * 0.0.0.0/0 127.0.0.0/8 reject-with icmp-port-unreachable 628 64420 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 1 60 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 19 988 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:443 1 52 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 0 0 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0 icmptype 8 5 260 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 limit: avg 5/min burst 5 LOG flags 0 level 7 prefix "iptables denied: " 5 260 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable 0 0 ACCEPT tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:3306 Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 919 213K ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 Chain fail2ban-ssh (1 references) pkts bytes target prot opt in out source destination 359 25972 RETURN all -- * * 0.0.0.0/0 0.0.0.0/0 which appears to be the case (last line in "Chain INPUT" section). 5) try to connect again from remote machine: $> mysql -u root -p -h x.x.x.x output: timeout.... failed to connect which is failing again. 6) try to flush all rules: $> sudo iptables -F 7) this time I CAN CONNECT. 8) reboot server and try to connect, FAILURE. I suspect since the new rule is being appended at the end it will have no effect as there appears to be a "reject all" sort of rule before it. If this is the case, how to make sure the new rule is added in the right order? Otherwise, what am I missing? Please help.

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• Facebook Javascript SDK's FB.ui Bug in IE8

  - by Lukas

  hi everyone i have found a bug in IE8 using the new Facebook Javascript SDK. i call a Post dialog using: FB.ui( { method: 'stream.publish', display: 'dialog', message: 'test', attachment: { name: 'test', caption: 'test', media: [ {type: 'image', src: site_url+'test.jpg', href: site_url} ], description: ( 'test' ), href: site_url } }, my html structure is: <body> <div id="content"></div> <script type="text/javascript"> var params = { wmode: 'opaque', allowScriptAccess: 'always', quality: 'high', allowFullScreen: "true" }; var attributes = { id: 'test' }; swfobject.embedSWF("frontend/swf/stage.swf", "content", "100%", "100%", "10", params, attributes); var site_url = 'http://test.com'; </script> <div id="fb-root"></div> <script type="text/javascript" src="http://connect.facebook.net/en_US/all.js"></script> <div id="like-dialog" style="display:none;"> <div id="like-dialog-wrapper"> <div id="like-dialog-close"></div> <iframe src="http://www.facebook.com/plugins/likebox.php?id=99999999999&amp;width=292&amp;connections=0&amp;stream=true&amp;header=false&amp;height=395" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:292px; height:395px;"></iframe> </div> </div> </body> the css: html, #content, body { margin: 0; height: 100%; overflow: hidden; } #content { z-index: 1; } what i do is: i embed my stage i call the FB.init function and then call FB.ui function to overlay my flash. it works in every common browser except IE8. in IE8 the div containing the iframe is behind the div where i embed flash, although i set the z-index and position the dialog absolute. any ideas? thanks in advance

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• Importing CSV filte to SQL server...

  - by sam

  HI guys, I am trying to import CSV file to SQL server database, no success, I am still newbie to sql server, thanks Operation stopped... Initializing Data Flow Task (Success) Initializing Connections (Success) Setting SQL Command (Success) Setting Source Connection (Success) Setting Destination Connection (Success) Validating (Success) Messages Warning 0x80049304: Data Flow Task 1: Warning: Could not open global shared memory to communicate with performance DLL; data flow performance counters are not available. To resolve, run this package as an administrator, or on the system's console. (SQL Server Import and Export Wizard) Prepare for Execute (Success) Pre-execute (Success) Messages Information 0x402090dc: Data Flow Task 1: The processing of file "D:\test.csv" has started. (SQL Server Import and Export Wizard) Executing (Error) Messages Error 0xc002f210: Drop table(s) SQL Task 1: Executing the query "drop table [dbo].[test] " failed with the following error: "Cannot drop the table 'dbo.test', because it does not exist or you do not have permission.". Possible failure reasons: Problems with the query, "ResultSet" property not set correctly, parameters not set correctly, or connection not established correctly. (SQL Server Import and Export Wizard) Error 0xc02020a1: Data Flow Task 1: Data conversion failed. The data conversion for column ""Code"" returned status value 4 and status text "Text was truncated or one or more characters had no match in the target code page.". (SQL Server Import and Export Wizard) Error 0xc020902a: Data Flow Task 1: The "output column ""Code"" (38)" failed because truncation occurred, and the truncation row disposition on "output column ""Code"" (38)" specifies failure on truncation. A truncation error occurred on the specified object of the specified component. (SQL Server Import and Export Wizard) Error 0xc0202092: Data Flow Task 1: An error occurred while processing file "D:\test.csv" on data row 21. (SQL Server Import and Export Wizard) Error 0xc0047038: Data Flow Task 1: SSIS Error Code DTS_E_PRIMEOUTPUTFAILED. The PrimeOutput method on component "Source - test_csv" (1) returned error code 0xC0202092. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing. There may be error messages posted before this with more information about the failure. (SQL Server Import and Export Wizard) Copying to [dbo].[test] (Stopped) Post-execute (Success) Messages Information 0x402090dd: Data Flow Task 1: The processing of file "D:\test.csv" has ended. (SQL Server Import and Export Wizard) Information 0x402090df: Data Flow Task 1: The final commit for the data insertion in "component "Destination - test" (70)" has started. (SQL Server Import and Export Wizard) Information 0x402090e0: Data Flow Task 1: The final commit for the data insertion in "component "Destination - test" (70)" has ended. (SQL Server Import and Export Wizard) Information 0x4004300b: Data Flow Task 1: "component "Destination - test" (70)" wrote 0 rows. (SQL Server Import and Export Wizard)

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• multiple stateful iframes per page will overwrite JSESSIONID?

  - by Nikita

  Hello, Looking for someone to either confirm or refute my theory that deploying two iframes pointing to two different stateful pages on the same domain can lead to JSESSIONIDs being overwritten. Here's what I mean: Setup suppose you have two pages that require HttpSession state (session affinity) to function correctly - deployed at http://www.foo.com/page1 and http://www.foo.com/page2 assume www.foo.com is a single host running a Tomcat (6.0.20, fwiw) that uses JSESSIONID for session id's. suppose these pages are turned into two iframe widgets to be embedded on 3rd party sites: http://www.site.com/page1" / (and /page2 respectively) suppose there a 3rd party site that wishes to place both widgets on the same page at http://www.bar.com/foowidgets.html Can the following race condition occur? a new visitor goes to http://www.bar.com/foowidgets.html browser starts loading URLs in foowidgets.html including the two iframe 'src' URLs because browsers open multiple concurrent connections against the same host (afaik up to 6 in chrome/ff case) the browser happens to simultaneously issue requests for http://www.foo.com/page1 and http://www.foo.com/page2 The tomcat @ foo.com receives both requests at about the same time, calls getSession() for the first time (on two different threads) and lazily creates two HttpSessions and, thus, two JSESSIONIDs, with values $Page1 and $Page2. The requests also stuff data into respective sessions (that data will be required to process subsequent requests) assume that the browser first receives response to the page1 request. Browser sets cookie JSESSIONID=$Page1 for HOST www.foo.com next response to the page2 request is received and the browser overwrites cookie JSESSIONID for HOST www.foo.com with $Page2 user clicks on something in 'page1' iframe on foowidgets.html; browser issues 2nd request to http://www.foo.com/page1?action=doSomethingStateful. That request carries JSESSIONID=$Page2 (and not $Page1 - because cookie value was overwritten) when foo.com receives this request it looks up the wrong HttpSession instance (because JSESSIONID key is $Page2 and NOT $Page1). Foobar! Can the above happen? I think so, but would appreciate a confirmation. If the above is clearly possible, what are some solutions given that we'd like to support multiple iframes per page? We don't have a firm need for the iframes to share the same HttpSession, though that would be nice. In the event that the solution will still stipulate a separate HttpSession per iframe, it is - of course - mandatory that iframe 1 does not end up referencing httpSession state for iframe 2 instead of own. off top of my head I can think of: map page1 and page2 to different domains (ops overhead) use URL rewriting and never cookies (messes up analytics) anything else? thanks a lot, -nikita

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• jBASE 4.1 Database Noobster Questions

  - by Steve Johnson

  I am a software developer with devlopment experience in C#, C++ .Net alongwith SQL Server 2005/08, Oracle and mysql. But somehow i dont get jBASE to work at Windows XP SP3 machine. My goal is setup user accounts, create database on a JBASE ainstallation, authenticate and backup/restore few table via a C++ program. And i dont need to do it with builtin backup/restore tools of jBASE. I am able to install jBASe 4.1 aling with all its accessories on my WINXPSP3 machine. I was able to run the jSlimserver and TEMENOUS server along with licnesing server. I was able to add the license key as well. But after that what i was supposed to do? i have no idea about it. The docs and online help doesnt answer a simple question of how to create a database! The google search results from the jbase site all go to the 404 Pages! Can a jBASE expert guide to the following steps: Create a jBASE database. Create users Authenticate via those users Connect to database Create tables and insert data. Connect via a C++ or C# program to connect to jBASE DB and backup/restore tables. I know that this is too much too ask but i dont get to get the JBASE system. I cant get it to work on my System somehow. Btw, jdc and jexloree doesnt seem to do anything. I have checked that enironmental variables for jBASE are setup correctly and i have verified them. There are no extra JRE or JDK installations on my system. Besides all that, only licensing client, slim server and temenous server seem to run and listen for connections and no other execuatable ever seems to work. A simple tutorial to achieve the objective will be highly appreciated. Also if anyone can point out the mistake that i have done or anything i might need to check, then please do so. I will be highly encouraged and obliged. Thanks Steve

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• XML Socket and Regular Socket in Flash/Flex does not send message immediately.

  - by kramer

  I am trying to build a basic RIA where my Flex application client opens an XML socket, sends the xml message "people_list" to server, and prints out the response. I have ruby at the server side and I have successfully set up the security policy stuff. The ruby xml server, successfully accepts the connections from Flex, successfully detects when they are closed and can also send messages to client. But; there is a problem... It cannot receive messages from flex client. The messages sent from flex client are queued and sent as one package when the socket is closed. Therefore, the whole wait-for-request-then-reply thing is not working... This is also -kinda- mentioned in the XMLSocket.send() document, where it is stated that the messages are sent async so; they may be delivered at any time in future. But; I need them to be synced, flushed or whatever. This is the server side code: require 'socket' require 'observer' class Network_Reader_Ops include Observable @@reader_listener_socket = UDPSocket.new @@reader_broadcast_socket = UDPSocket.new @@thread_id def initialize @@reader_broadcast_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_BROADCAST, 1) @@reader_broadcast_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1) @@reader_listener_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1) @@reader_broadcast_socket.bind('', 50050) @@reader_listener_socket.bind('', 50051) @@thread_id = Thread.start do loop do begin text, sender = @@reader_listener_socket.recvfrom_nonblock 1024 print("Knock response recived: ", text) notify_observers text rescue Errno::EAGAIN retry rescue Errno::EWOULDBLOCK retry end end end end def query @@reader_broadcast_socket.send("KNOCK KNOCK", 0, "255.255.255.255", 50050) end def stop Thread.kill @@thread_id end end class XMLSocket_Connection attr_accessor :connection_id def update (data) connection_id.write(data+"\0") end end begin # Set EOL for Flash $/ = '\x00' xml_socket = TCPServer.open('', '4444') security_policy_socket = TCPServer.open('', '843') xml_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1) security_policy_socket.setsockopt(Socket::SOL_SOCKET, Socket::SO_REUSEADDR, 1) a = Thread.start do network_ops = nil loop { accepted_connection = xml_socket.accept print(accepted_connection.peeraddr, " is accepted\n") while accepted_connection.gets incoming = $_.dump print("Received: ", incoming) if incoming == "<request>readers on network</request>" then network_ops = Network_Reader_Ops.new this_con = XMLSocket_Connection.new this_con.connection_id = accepted_connection network_ops.add_observer this_con network_ops.query end end if not network_ops.nil? then network_ops.delete_observer this_con network_ops.stop network_ops = nil end print(accepted_connection, " is gone\n") accepted_connection.close } end b = Thread.start do loop { accepted_connection = security_policy_socket.accept Thread.start do current_connection = accepted_connection while current_connection.gets if $_ =~ /.*policy\-file.*/i then current_connection.write("<cross-domain-policy><allow-access-from domain="*" to-ports="*" /></cross-domain-policy>\0") end end current_connection.close end } end a.join b.join rescue puts "FAILED" retry end And this is the flex/flash client side code: UPDATE: I have also tried using regular socket and calling flush() method but; the result was same. private var socket:XMLSocket = new XMLSocket(); protected function stopXMLSocket():void { socket.close(); } protected function startXMLSocket():void { socket.addEventListener(DataEvent.DATA, dataHandler); socket.connect(xmlSocketServer_address, xmlSocketServer_port); socket.send("<request>readers on network</request>"); } protected function dataHandler(event:DataEvent):void { mx.controls.Alert.show(event.data); } How do I achieve the described behaviour?

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• unrecognized selector sent to instance in xcode using objective c and sup as backend

  - by user1765037

  I am a beginner in native development.I made a project using xcode in objective C.It builded successfully.But when I run the project ,an error came like 'unrecognized selector sent to instance'.Why this is happening ?can anyone help me to solve this?I am attaching the error that I am getting with this.. And I am posting the code with this.... ConnectionController.m #import "ConnectionController.h" #import "SUPApplication.h" #import "Flight_DetailsFlightDB.h" #import "CallbackHandler.h" @interface ConnectionController() @property (nonatomic,retain)CallbackHandler *callbackhandler; @end @implementation ConnectionController @synthesize callbackhandler; static ConnectionController *appConnectionController; //Begin Application Setup +(void)beginApplicationSetup { if(!appConnectionController) { appConnectionController = [[[ConnectionController alloc]init]retain]; appConnectionController.callbackhandler = [[CallbackHandler getInstance]retain]; } if([SUPApplication connectionStatus] == SUPConnectionStatus_DISCONNECTED) [appConnectionController setupApplicationConnection]; else NSLog(@"Already Connected"); } -(BOOL)setupApplicationConnection { SUPApplication *app = [SUPApplication getInstance]; [app setApplicationIdentifier:@"HWC"]; [app setApplicationCallback:self.callbackhandler]; NSLog(@"inside setupApp"); SUPConnectionProperties *properties = [app connectionProperties]; NSLog(@"server"); [properties setServerName:@"sapecxxx.xxx.com"]; NSLog(@"inside setupAppser"); [properties setPortNumber:5001]; NSLog(@"inside setupApppot"); [properties setFarmId:@"0"]; NSLog(@"inside setupAppfarm"); [properties setUrlSuffix:@"/tm/?cid=%cid%"]; NSLog(@"inside setupAppurlsuff"); [properties setNetworkProtocol:@"http"]; SUPLoginCredentials *loginCred = [SUPLoginCredentials getInstance]; NSLog(@"inside setupAppmac"); [loginCred setUsername:@"mac"]; [loginCred setPassword:nil]; [properties setLoginCredentials:loginCred]; [properties setActivationCode:@"1234"]; if(![Flight_DetailsFlightDB databaseExists]) { [Flight_DetailsFlightDB createDatabase]; } SUPConnectionProfile *connprofile = [Flight_DetailsFlightDB getSynchronizationProfile]; [connprofile setNetworkProtocol:@"http"]; NSLog(@"inside setupAppPort2"); [connprofile setPortNumber:2480]; NSLog(@"inside setupAppser2"); [connprofile setServerName:@"sapecxxx.xxx.com"]; NSLog(@"inside setupAppdom2"); [connprofile setDomainName:@"Development"]; NSLog(@"inside setupAppuser"); [connprofile setUser:@"supAdmin"]; [connprofile setPassword:@"s3pAdmin"]; [connprofile setAsyncReplay:YES]; [connprofile setClientId:@"0"]; // [Flight_DetailsFlightDB beginOnlineLogin:@"supAdmin" password:@"s3pAdmin"]; [Flight_DetailsFlightDB registerCallbackHandler:self.callbackhandler]; [Flight_DetailsFlightDB setApplication:app]; if([SUPApplication connectionStatus] == SUPRegistrationStatus_REGISTERED) { [app startConnection:0]; } else { [app registerApplication:0]; } } @end ViewController.m #import "Demo_FlightsViewController.h" #import "ConnectionController.h" #import "Flight_DetailsFlightDB.h" #import "SUPObjectList.h" #import "Flight_DetailsSessionPersonalization.h" #import "Flight_DetailsFlight_MBO.h" #import "Flight_DetailsPersonalizationParameters.h" @interface Demo_FlightsViewController () @end @implementation Demo_FlightsViewController - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. } -(IBAction)Connect:(id)sender { @try { [ConnectionController beginApplicationSetup]; } @catch (NSException *exception) { NSLog(@"ConnectionAborted"); } // synchronise } -(IBAction)Synchronise:(id)sender { @try { [Flight_DetailsFlightDB synchronize]; NSLog(@"SYNCHRONISED"); } @catch (NSException *exception) { NSLog(@"Synchronisation Failed"); } } -(IBAction)findall:(id)sender { SUPObjectList *list = [Flight_DetailsSessionPersonalization findAll]; NSLog(@"no of lines got synchronised is %d",list.size); } -(IBAction)confirm:(id)sender { Flight_DetailsPersonalizationParameters *pp = [Flight_DetailsFlightDB getPersonalizationParameters]; MBOLogInfo(@"personalisation parmeter for airline id= %@",pp.Airline_PK); [pp setAirline_PK:@"AA"]; [pp save]; while([Flight_DetailsFlightDB hasPendingOperations]) { [NSThread sleepForTimeInterval:1]; } NSLog(@"inside confirm............"); [Flight_DetailsFlightDB beginSynchronize]; Flight_DetailsFlight_MBO *flight = nil; SUPObjectList *cl = nil; cl =[Flight_DetailsFlight_MBO findAll]; if(cl && cl.length > 0) { int i; for(i=0;i<cl.length;i++) { flight = [cl item:i]; if(flight) { NSLog(@"details are %@",flight.CITYFROM); } } } } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); } @end SUPConnectionProfile.h #import "sybase_sup.h" #define FROM_IMPORT_THREAD TRUE #define FROM_APP_THREAD FALSE #define SUP_UL_MAX_CACHE_SIZE 10485760 @class SUPBooleanUtil; @class SUPNumberUtil; @class SUPStringList; @class SUPStringUtil; @class SUPPersistenceException; @class SUPLoginCertificate; @class SUPLoginCredentials; @class SUPConnectionProfile; /*! @class SUPConnectionProfile @abstract This class contains fields and methods needed to connect and authenticate to an SUP server. @discussion */ @interface SUPConnectionProfile : NSObject { SUPConnectionProfile* _syncProfile; SUPBoolean _threadLocal; SUPString _wrapperData; NSMutableDictionary* _delegate; SUPLoginCertificate* _certificate; SUPLoginCredentials* _credentials; int32_t _maxDbConnections; BOOL initTraceCalled; } /*! @method @abstract Return a new instance of SUPConnectionProfile. @discussion @result The SUPconnectionprofile object. */ + (SUPConnectionProfile*)getInstance; /*! @method @abstract Return a new instance of SUPConnectionProfile. @discussion This method is deprecated. use getInstance instead. @result The SUPconnectionprofile object. */ + (SUPConnectionProfile*)newInstance DEPRECATED_ATTRIBUTE NS_RETURNS_NON_RETAINED; - (SUPConnectionProfile*)init; /*! @property @abstract The sync profile. @discussion */ @property(readwrite, retain, nonatomic) SUPConnectionProfile* syncProfile; /*! @property @abstract The maximum number of active DB connections allowed @discussion Default value is 4, but can be changed by application developer. */ @property(readwrite, assign, nonatomic) int32_t maxDbConnections; /*! @method @abstract The SUPConnectionProfile manages an internal dictionary of key value pairs. This method returns the SUPString value for a given string. @discussion @param name The string. */ - (SUPString)getString:(SUPString)name; /*! @method @abstract The SUPConnectionProfile manages an internal dictionary of key value pairs. This method returns the SUPString value for a given string. If the value is not found, returns 'defaultValue'. @discussion @param name The string. @param defaultValue The default Value. */ - (SUPString)getStringWithDefault:(SUPString)name:(SUPString)defaultValue; /*! @method @abstract The SUPConnectionProfile manages an internal dictionary of key value pairs. This method returns the SUPBoolean value for a given string. @discussion @param name The string. */ - (SUPBoolean)getBoolean:(SUPString)name; /*! @method @abstract The SUPConnectionProfile manages an internal dictionary of key value pairs. This method returns the SUPBoolean value for a given string. If the value is not found, returns 'defaultValue'. @discussion @param name The string. @param defaultValue The default Value. */ - (SUPBoolean)getBooleanWithDefault:(SUPString)name:(SUPBoolean)defaultValue; /*! @method @abstract The SUPConnectionProfile manages an internal dictionary of key value pairs. This method returns the SUPInt value for a given string. @discussion @param name The string. */ - (SUPInt)getInt:(SUPString)name; /*! @method @abstract The SUPConnectionProfile manages an internal dictionary of key value pairs. This method returns the SUPInt value for a given string. If the value is not found, returns 'defaultValue'. @discussion @param name The string. @param defaultValue The default Value. */ - (SUPInt)getIntWithDefault:(SUPString)name:(SUPInt)defaultValue; /*! @method getUPA @abstract retrieve upa from profile @discussion if it is in profile's dictionary, it returns value for key "upa"; if it is not found in profile, it composes the upa value from base64 encoding of username:password; and also inserts it into profile's dictionary. @param none @result return string value of upa. */ - (SUPString)getUPA; /*! @method @abstract Sets the SUPString 'value' for the given 'name'. @discussion @param name The name. @param value The value. */ - (void)setString:(SUPString)name:(SUPString)value; /*! @method @abstract Sets the SUPBoolean 'value' for the given 'name'. @discussion @param name The name. @param value The value. */ - (void)setBoolean:(SUPString)name:(SUPBoolean)value; /*! @method @abstract Sets the SUPInt 'value' for the given 'name'. @discussion @param name The name. @param value The value. */ - (void)setInt:(SUPString)name:(SUPInt)value; /*! @method @abstract Sets the username. @discussion @param value The value. */ - (void)setUser:(SUPString)value; /*! @method @abstract Sets the password. @discussion @param value The value. */ - (void)setPassword:(SUPString)value; /*! @method @abstract Sets the ClientId. @discussion @param value The value. */ - (void)setClientId:(SUPString)value; /*! @method @abstract Returns the databasename. @discussion @param value The value. */ - (SUPString)databaseName; /*! @method @abstract Sets the databasename. @discussion @param value The value. */ - (void)setDatabaseName:(SUPString)value; @property(readwrite,copy, nonatomic) SUPString databaseName; /*! @method @abstract Gets the encryption key. @discussion @result The encryption key. */ - (SUPString)getEncryptionKey; /*! @method @abstract Sets the encryption key. @discussion @param value The value. */ - (void)setEncryptionKey:(SUPString)value; @property(readwrite,copy, nonatomic) SUPString encryptionKey; /*! @property @abstract The authentication credentials (username/password or certificate) for this profile. @discussion */ @property(retain,readwrite,nonatomic) SUPLoginCredentials *credentials; /*! @property @abstract The authentication certificate. @discussion If this is not null, certificate will be used for authentication. If this is null, credentials property (username/password) will be used. */ @property(readwrite,retain,nonatomic) SUPLoginCertificate *certificate; @property(readwrite, assign, nonatomic) BOOL initTraceCalled; /*! @method @abstract Gets the UltraLite collation creation parameter @discussion @result conllation string */ - (SUPString)getCollation; /*! @method @abstract Sets the UltraLite collation creation parameter @discussion @param value The value. */ - (void)setCollation:(SUPString)value; @property(readwrite,copy, nonatomic) SUPString collation; /*! @method @abstract Gets the maximum cache size in bytes; the default value for iOS is 10485760 (10 MB). @discussion @result max cache size */ - (int)getCacheSize; /*! @method @abstract Sets the maximum cache size in bytes. @discussion For Ultralite, passes the cache_max_size property into the connection parameters for DB connections; For SQLite, executes the "PRAGMA cache_size" statement when a connection is opened. @param cacheSize value */ - (void)setCacheSize:(int)cacheSize; @property(readwrite,assign, nonatomic) int cacheSize; /*! @method @abstract Returns the user. @discussion @result The username. */ - (SUPString)getUser; /*! @method @abstract Returns the password hash value. @discussion @result The password hash value. */ - (NSUInteger)getPasswordHash; /*! @method @abstract Returns the password. @discussion @result The password hash value. */ - (NSString*)getPassword; /*! @method @abstract Adds a new key value pair. @discussion @param key The key. @param value The value. */ - (void)add:(SUPString)key:(SUPString)value; /*! @method @abstract Removes the key. @discussion @param key The key to remove. */ - (void)remove:(SUPString)key; - (void)clear; /*! @method @abstract Returns a boolean indicating if the key is present. @discussion @param key The key. @result The result indicating if the key is present. */ - (SUPBoolean)containsKey:(SUPString)key; /*! @method @abstract Returns the item for the given key. @discussion @param key The key. @result The item. */ - (SUPString)item:(SUPString)key; /*! @method @abstract Returns the list of keys. @discussion @result The keylist. */ - (SUPStringList*)keys; /*! @method @abstract Returns the list of values. @discussion @result The value list. */ - (SUPStringList*)values; /*! @method @abstract Returns the internal map of key value pairs. @discussion @result The NSMutableDictionary with key value pairs. */ - (NSMutableDictionary*)internalMap; /*! @method @abstract Returns the domain name. @result The domain name. @discussion */ - (SUPString)getDomainName; /*! @method @abstract Sets the domain name. @param value The domain name. @discussion */ - (void)setDomainName:(SUPString)value; /*! @method @abstract Get async operation replay property. Default is true. @result YES : if ansync operation replay is enabled; NO: if async operation is disabled. @discussion */ - (BOOL) getAsyncReplay; /*! @method @abstract Set async operation replay property. Default is true. @result value: enable/disable async replay operation. @discussion */ - (void) setAsyncReplay:(BOOL) value; /*! @method @abstract enable or disable the trace in client object API. @param enable - YES: enable the trace; NO: disable the trace. @discussion */ - (void)enableTrace:(BOOL)enable; /*! @method @abstract enable or disable the trace with payload info in client object API. @param enable - YES: enable the trace; NO: disable the trace. @param withPayload = YES: show payload information; NO: not show payload information. @discussion */ - (void)enableTrace:(BOOL)enable withPayload:(BOOL)withPayload; /*! @method @abstract initialize trace levels from server configuration. @discussion */ - (void)initTrace; - (void)dealloc; /* ultralite/mobilink required parameters */ - (SUPString)getNetworkProtocol; - (void)setNetworkProtocol:(SUPString)protocol; - (SUPString)getNetworkStreamParams; - (void)setNetworkStreamParams:(SUPString)stream; - (SUPString)getServerName; - (void)setServerName:(SUPString)name; - (int)getPortNumber; - (void)setPortNumber:(int)port; - (int)getPageSize; - (void)setPageSize:(int)size; @end @interface SUPConnectionProfile(internal) - (void)applyPropertiesFromApplication; @end We are using SUP 2.1.3 library files.Please go through the code and help me...

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• Need help implementing simple socket server using GIOService (GLib, Glib-GIO)

  - by Mark Renouf

  I'm learning the basics of writing a simple, efficient socket server using GLib. I'm experimenting with GSocketService. So far I can only seem to accept connections but then they are immediately closed. From the docs I can't figure out what step I am missing. I'm hoping someone can shed some light on this for me. When running the following: # telnet localhost 4000 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connection closed by foreign host. # telnet localhost 4000 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connection closed by foreign host. # telnet localhost 4000 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Connection closed by foreign host. Output from the server: # ./server New Connection from 127.0.0.1:36962 New Connection from 127.0.0.1:36963 New Connection from 127.0.0.1:36965 Current code: /* * server.c * * Created on: Mar 10, 2010 * Author: mark */ #include <glib.h> #include <gio/gio.h> gchar *buffer; gboolean network_read(GIOChannel *source, GIOCondition cond, gpointer data) { GString *s = g_string_new(NULL); GError *error; GIOStatus ret = g_io_channel_read_line_string(source, s, NULL, &error); if (ret == G_IO_STATUS_ERROR) g_error ("Error reading: %s\n", error->message); else g_print("Got: %s\n", s->str); } gboolean new_connection(GSocketService *service, GSocketConnection *connection, GObject *source_object, gpointer user_data) { GSocketAddress *sockaddr = g_socket_connection_get_remote_address(connection, NULL); GInetAddress *addr = g_inet_socket_address_get_address(G_INET_SOCKET_ADDRESS(sockaddr)); guint16 port = g_inet_socket_address_get_port(G_INET_SOCKET_ADDRESS(sockaddr)); g_print("New Connection from %s:%d\n", g_inet_address_to_string(addr), port); GSocket *socket = g_socket_connection_get_socket(connection); gint fd = g_socket_get_fd(socket); GIOChannel *channel = g_io_channel_unix_new(fd); g_io_add_watch(channel, G_IO_IN, (GIOFunc) network_read, NULL); return TRUE; } int main(int argc, char **argv) { g_type_init(); GSocketService *service = g_socket_service_new(); GInetAddress *address = g_inet_address_new_from_string("127.0.0.1"); GSocketAddress *socket_address = g_inet_socket_address_new(address, 4000); g_socket_listener_add_address(G_SOCKET_LISTENER(service), socket_address, G_SOCKET_TYPE_STREAM, G_SOCKET_PROTOCOL_TCP, NULL, NULL, NULL); g_object_unref(socket_address); g_object_unref(address); g_socket_service_start(service); g_signal_connect(service, "incoming", G_CALLBACK(new_connection), NULL); GMainLoop *loop = g_main_loop_new(NULL, FALSE); g_main_loop_run(loop); }

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• C# SerialPort - Problems mixing ports with different baud rates.

  - by GrandAdmiral

  Greetings, I have two devices that I would like to connect over a serial interface, but they have incompatible connections. To get around this problem, I connected them both to my PC and I'm working on a C# program that will route traffic on COM port X to COM port Y and vice versa. The program connects to two COM ports. In the data received event handler, I read in incoming data and write it to the other COM port. To do this, I have the following code: private void HandleDataReceived(SerialPort inPort, SerialPort outPort) { byte[] data = new byte[1]; while (inPort.BytesToRead > 0) { // Read the data data[0] = (byte)inPort.ReadByte(); // Write the data if (outPort.IsOpen) { outPort.Write(data, 0, 1); } } } That code worked fine as long as the outgoing COM port operated at a higher baud rate than the incoming COM port. If the incoming COM port was faster than the outgoing COM port, I started missing data. I had to correct the code like this: private void HandleDataReceived(SerialPort inPort, SerialPort outPort) { byte[] data = new byte[1]; while (inPort.BytesToRead > 0) { // Read the data data[0] = (byte)inPort.ReadByte(); // Write the data if (outPort.IsOpen) { outPort.Write(data, 0, 1); while (outPort.BytesToWrite > 0); //<-- Change to fix problem } } } I don't understand why I need that fix. I'm new to C# (this is my first program), so I'm wondering if there is something I am missing. The SerialPort defaults to a 2048 byte write buffer and my commands are less than ten bytes. The write buffer should have the ability to buffer the data until it can be written to a slower COM port. In summary, I'm receiving data on COM X and writing the data to COM Y. COM X is connected at a faster baud rate than COM Y. Why doesn't the buffering in the write buffer handle this difference? Why does it seem that I need to wait for the write buffer to drain to avoid losing data? Thanks!

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• Using ASP.NET MVC, Linq To SQL, and StructureMap causing DataContext to cache data

  - by Dragn1821

  I'll start by telling my project setup: ASP.NET MVC 1.0 StructureMap 2.6.1 VB I've created a bootstrapper class shown here: Imports StructureMap Imports DCS.Data Imports DCS.Services Public Class BootStrapper Public Shared Sub ConfigureStructureMap() ObjectFactory.Initialize(AddressOf StructureMapRegistry) End Sub Private Shared Sub StructureMapRegistry(ByVal x As IInitializationExpression) x.AddRegistry(New MainRegistry()) x.AddRegistry(New DataRegistry()) x.AddRegistry(New ServiceRegistry()) x.Scan(AddressOf StructureMapScanner) End Sub Private Shared Sub StructureMapScanner(ByVal scanner As StructureMap.Graph.IAssemblyScanner) scanner.Assembly("DCS") scanner.Assembly("DCS.Data") scanner.Assembly("DCS.Services") scanner.WithDefaultConventions() End Sub End Class I've created a controller factory shown here: Imports System.Web.Mvc Imports StructureMap Public Class StructureMapControllerFactory Inherits DefaultControllerFactory Protected Overrides Function GetControllerInstance(ByVal controllerType As System.Type) As System.Web.Mvc.IController Return ObjectFactory.GetInstance(controllerType) End Function End Class I've modified the Global.asax.vb as shown here: ... Sub Application_Start() RegisterRoutes(RouteTable.Routes) 'StructureMap BootStrapper.ConfigureStructureMap() ControllerBuilder.Current.SetControllerFactory(New StructureMapControllerFactory()) End Sub ... I've added a Structure Map registry file to each of my three projects: DCS, DCS.Data, and DCS.Services. Here is the DCS.Data registry: Imports StructureMap.Configuration.DSL Public Class DataRegistry Inherits Registry Public Sub New() 'Data Connections. [For](Of DCSDataContext)() _ .HybridHttpOrThreadLocalScoped _ .Use(New DCSDataContext()) 'Repositories. [For](Of IShiftRepository)() _ .Use(Of ShiftRepository)() [For](Of IMachineRepository)() _ .Use(Of MachineRepository)() [For](Of IShiftSummaryRepository)() _ .Use(Of ShiftSummaryRepository)() [For](Of IOperatorRepository)() _ .Use(Of OperatorRepository)() [For](Of IShiftSummaryJobRepository)() _ .Use(Of ShiftSummaryJobRepository)() End Sub End Class Everything works great as far as loading the dependecies, but I'm having problems with the DCSDataContext class that was genereated by Linq2SQL Classes. I have a form that posts to a details page (/Summary/Details), which loads in some data from SQL. I then have a button that opens a dialog box in JQuery, which populates the dialog from a request to (/Operator/Modify). On the dialog box, the form has a combo box and an OK button that lets the user change the operator's name. Upon clicking OK, the form is posted to (/Operator/Modify) and sent through the service and repository layers of my program and updates the record in the database. Then, the RedirectToAction is called to send the user back to the details page (/Summary/Details) where there is a call to pull the data from SQL again, updating the details view. Everything works great, except the details view does not show the new operator that was selected. I can step through the code and see the DCSDataContext class being accessed to update the operator (which does actually change the database record), but when the DCSDataContext is accessed to reload the details objects, it pulls in the old value. I'm guessing that StructureMap is causing not only the DCSDataContext class but also the data to be cached? I have also tried adding the following to the Global.asax, but it just ends up crashing the program telling me the DCSDataContext has been disposed... Private Sub MvcApplication_EndRequest(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.EndRequest StructureMap.ObjectFactory.ReleaseAndDisposeAllHttpScopedObjects() End Sub Can someone please help?

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• Help finding longest non-repeating path through connected nodes - Python

  - by Jordan Magnuson

  I've been working on this for a couple of days now without success. Basically, I have a bunch of nodes arranged in a 2D matrix. Every node has four neighbors, except for the nodes on the sides and corners of the matrix, which have 3 and 2 neighbors, respectively. Imagine a bunch of square cards laid out side by side in a rectangular area--the project is actually simulating a sort of card/board game. Each node may or may not be connected to the nodes around it. Each node has a function (get_connections()), that returns the nodes immediately around it that it is connected to (so anywhere from 0 to 4 nodes are returned). Each node also has an "index" property, that contains it's position on the board matrix (eg '1, 4' - row 1, col 4). What I am trying to do is find the longest non-repeating path of connected nodes given a particular "start" node. I've uploaded a couple of images that should give a good idea of what I'm trying to do: In both images, the highlighted red cards are supposedly the longest path of connected cards containing the most upper-left card. However, you can see in both images that a couple of cards that should be in the path have been left out (Romania and Maldova in the first image, Greece and Turkey in the second) Here's the recursive function that I am using currently to find the longest path, given a starting node/card: def get_longest_trip(self, board, processed_connections = list(), processed_countries = list()): #Append this country to the processed countries list, #so we don't re-double over it processed_countries.append(self) possible_trips = dict() if self.get_connections(board): for i, card in enumerate(self.get_connections(board)): if card not in processed_countries: processed_connections.append((self, card)) possible_trips[i] = card.get_longest_trip(board, processed_connections, processed_countries) if possible_trips: longest_trip = [] for i, trip in possible_trips.iteritems(): trip_length = len(trip) if trip_length > len(longest_trip): longest_trip = trip longest_trip.append(self) return longest_trip else: print card_list = [] card_list.append(self) return card_list else: #If no connections from start_card, just return the start card #as the longest trip card_list = [] card_list.append(board.start_card) return card_list The problem here has to do with the processed_countries list: if you look at my first screenshot, you can see that what has happened is that when Ukraine came around, it looked at its two possible choices for longest path (Maldova-Romania, or Turkey, Bulgaria), saw that they were both equal, and chose one indiscriminantly. Now when Hungary comes around, it can't attempt to make a path through Romania (where the longest path would actually be), because Romania has been added to the processed_countries list by Ukraine. Any help on this is EXTREMELY appreciated. If you can find me a solution to this, recursive or not, I'd be happy to donate some $$ to you. I've uploaded my full source code (Python 2.6, Pygame 1.9 required) to: http://www.necessarygames.com/junk/planes_trains.zip The relevant code is in src/main.py, which is all set to run.

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• Using native MySQL driver in Erlang

  - by Mickey Shine

  I am using native MySQL driver (http://code.google.com/p/erlang-mysql-driver/) with mochiweb. When I tried that MySQL driver in shell mode, all woked fine. But when I write some code with Mochiweb, it reported me the following error: =CRASH REPORT==== 4-Jul-2009::04:44:29 === crasher: initial call: mochiweb_socket_server:acceptor_loop/1 pid: <0.61.0> registered_name: [] exception error: no function clause matching mysql:fetch(p1,<<"SELECT * FROM cdb_forums LIMIT 10">>) in function perly_web:loop/2 in call from mochiweb_http:headers/5 ancestors: [perly_web,perly_sup,<0.58.0>] messages: [] links: [<0.60.0>,#Port<0.965>] dictionary: [{mochiweb_request_body,undefined}, {mochiweb_request_qs,[]}, {mochiweb_request_post,[]}, {mochiweb_request_path,"/online"}, {mochiweb_request_cookie, [{"04c_sid","hG9Oyv"}, {"04c_visitedfid","2"}, {"kQx_cookietime","2592000"}, {"kQx_loginuser","admin"}, {"kQx_activationauth", "98b3mdX86fKT9dI4WyKuL61Tqxk%2BW1r6ACpHp9y8itH2xQ"}, {"smile","1D1"}]}] trap_exit: false status: running heap_size: 1597 stack_size: 24 reductions: 5188 neighbours: The code I write in Mochiweb is start(Options) -> {DocRoot, Options1} = get_option(docroot, Options), Loop = fun (Req) -> ?MODULE:loop(Req, DocRoot) end, % we’ll set our maximum to 1 million connections. (default: 2048) mochiweb_http:start([{max, 1000000}, {name, ?MODULE}, {loop, Loop} | Options1]), mysql:start_link(p1, "10.0.0.123", "root", "root", "test"). stop() -> mochiweb_http:stop(?MODULE). loop(Req, DocRoot) -> "/" ++ Path = Req:get(path), case Req:get(method) of Method when Method =:= 'GET'; Method =:= 'HEAD' -> case Path of "online" -> Result1 = mysql:fetch(p1, <<"SELECT * FROM cdb_forums LIMIT 10">>), Body1 = io:format("Result1: ~p~n", [Result1]), Req:ok({"text/plain", Body1}); The connection looks good but when I added Result1 = mysql:fetch(p1, <<"SELECT * FROM cdb_forums LIMIT 10">>), it crashed. Can someone help me? Thanks in advance~ //================================================== updated: I noticed the follwoing information. If that is correct? =PROGRESS REPORT==== 4-Jul-2009::05:49:32 === supervisor: {local,kernel_safe_sup} started: [{pid,<0.65.0>}, {name,inet_gethost_native_sup}, {mfa,{inet_gethost_native,start_link,[]}}, {restart_type,temporary}, {shutdown,1000}, {child_type,worker}] mysql_conn: greeting version "5.1.33-log" (protocol 10) salt "ne0_m'vA" caps 63487 serverchar <<8,2,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0>> salt2 "!|o;vabJ*4bt" mysql_auth send packet 1: <<5,162,0,0,64,66,15,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,114,111,111,116,0,20,52,235,78, 173,36,251,201,242,172,139,113,231,253,181,245,3, 91,198,111,135>> Link: {ok,<0.62.0>} =SUPERVISOR REPORT==== 4-Jul-2009::05:49:32 === Supervisor: {local,perly_sup} Context: start_error Reason: ok Offender: [{pid,undefined}, {name,perly_web}, {mfa, {perly_web,start, [[{ip,"0.0.0.0"}, {port,8000}, {docroot, "/work/mochiweb-read-only/scripts/perly/priv/www"}]]}}, {restart_type,permanent}, {shutdown,5000}, {child_type,worker}]

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• python Socket.IO client for sending broadcast messages to TornadIO2 server

  - by Alp

  I am building a realtime web application. I want to be able to send broadcast messages from the server-side implementation of my python application. Here is the setup: socketio.js on the client-side TornadIO2 server as Socket.IO server python on the server-side (Django framework) I can succesfully send socket.io messages from the client to the server. The server handles these and can send a response. In the following i will describe how i did that. Current Setup and Code First, we need to define a Connection which handles socket.io events: class BaseConnection(tornadio2.SocketConnection): def on_message(self, message): pass # will be run if client uses socket.emit('connect', username) @event def connect(self, username): # send answer to client which will be handled by socket.on('log', function) self.emit('log', 'hello ' + username) Starting the server is done by a Django management custom method: class Command(BaseCommand): args = '' help = 'Starts the TornadIO2 server for handling socket.io connections' def handle(self, *args, **kwargs): autoreload.main(self.run, args, kwargs) def run(self, *args, **kwargs): port = settings.SOCKETIO_PORT router = tornadio2.TornadioRouter(BaseConnection) application = tornado.web.Application( router.urls, socket_io_port = port ) print 'Starting socket.io server on port %s' % port server = SocketServer(application) Very well, the server runs now. Let's add the client code: <script type="text/javascript"> var sio = io.connect('localhost:9000'); sio.on('connect', function(data) { console.log('connected'); sio.emit('connect', '{{ user.username }}'); }); sio.on('log', function(data) { console.log("log: " + data); }); </script> Obviously, {{ user.username }} will be replaced by the username of the currently logged in user, in this example the username is "alp". Now, every time the page gets refreshed, the console output is: connected log: hello alp Therefore, invoking messages and sending responses works. But now comes the tricky part. Problems The response "hello alp" is sent only to the invoker of the socket.io message. I want to broadcast a message to all connected clients, so that they can be informed in realtime if a new user joins the party (for example in a chat application). So, here are my questions: How can i send a broadcast message to all connected clients? How can i send a broadcast message to multiple connected clients that are subscribed on a specific channel? How can i send a broadcast message anywhere in my python code (outside of the BaseConnection class)? Would this require some sort of Socket.IO client for python or is this builtin with TornadIO2? All these broadcasts should be done in a reliable way, so i guess websockets are the best choice. But i am open to all good solutions.

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• Tunnel over HTTPS

  - by ephemient

  At my workplace, the traffic blocker/firewall has been getting progressively worse. I can't connect to my home machine on port 22, and lack of ssh access makes me sad. I was previously able to use SSH by moving it to port 5050, but I think some recent filters now treat this traffic as IM and redirect it through another proxy, maybe. That's my best guess; in any case, my ssh connections now terminate before I get to log in. These days I've been using Ajaxterm over HTTPS, as port 443 is still unmolested, but this is far from ideal. (Sucky terminal emulation, lack of port forwarding, my browser leaks memory at an amazing rate...) I tried setting up mod_proxy_connect on top of mod_ssl, with the idea that I could send a CONNECT localhost:22 HTTP/1.1 request through HTTPS, and then I'd be all set. Sadly, this seems to not work; the HTTPS connection works, up until I finish sending my request; then SSL craps out. It appears as though mod_proxy_connect takes over the whole connection instead of continuing to pipe through mod_ssl, confusing the heck out of the HTTPS client. Is there a way to get this to work? I don't want to do this over plain HTTP, for several reasons: Leaving a big fat open proxy like that just stinks A big fat open proxy is not good over HTTPS either, but with authentication required it feels fine to me HTTP goes through a proxy -- I'm not too concerned about my traffic being sniffed, as it's ssh that'll be going "plaintext" through the tunnel -- but it's a lot more likely to be mangled than HTTPS, which fundamentally cannot be proxied Requirements: Must work over port 443, without disturbing other HTTPS traffic (i.e. I can't just put the ssh server on port 443, because I would no longer be able to serve pages over HTTPS) I have or can write a simple port forwarder client that runs under Windows (or Cygwin) Edit DAG: Tunnelling SSH over HTTP(S) has been pointed out to me, but it doesn't help: at the end of the article, they mention Bug 29744 - CONNECT does not work over existing SSL connection preventing tunnelling over HTTPS, exactly the problem I was running into. At this point, I am probably looking at some CGI script, but I don't want to list that as a requirement if there's better solutions available.

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• Linux: How to find all serial devices (ttyS, ttyUSB, ..) without opening them?

  - by Thomas Tempelmann

  What is the proper way to get a list of all available serial ports/devices on a Linux system? In other words, when I iterate over all devices in /dev/, how do I tell which ones are serial ports in the classic way, i.e. those usually supporting baud rates and RTS/CTS flow control? The solution would be coded in C. I ask because I am using a 3rd party library that does this clearly wrong: It appears to only iterate over /dev/ttyS*. The problem is that there are, for instance, serial ports over USB (provided by USB-RS232 adapters), and those are listed under /dev/ttyUSB*. And reading the Serial-HOWTO at Linux.org, I get the idea that there'll be other name spaces as well, as time comes. So I need to find the official way to detect serial devices. Problem is that there appears none documented, or I can't find it. I imagine one way would be to open all files from /dev/tty* and call a specific ioctl() on them that is only available on serial devices. Would that be a good solution, though? Update hrickards suggested to look at the source for "setserial". Its code does exactly what I had in mind: First, it opens a device with: fd = open (path, O_RDWR | O_NONBLOCK) Then it invokes: ioctl (fd, TIOCGSERIAL, &serinfo) If that call returns no error, then it's a serial dev, apparently. I found similar code here, which suggested to also add the O_NOCTTY option. There is one problem with this approach, though: When I tested this code on BSD Unix (i.e. OSX), it worked as well, however serial devices that are provided thru Bluetooth cause the system (driver) to try to connect to the bluetooth device, which takes a while before it'll return with a timeout error. This is caused by just opening the device. And I can imagine that similar things can happen on Linux as well - ideally, I should not need to open the device to figure out its type. I wonder if there's also a way to invoke ioctl functions without an open, or open a device in a way that it does not cause connections to be made? Any ideas?

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• Executing Stored Procedure for each InputRow + SSIS Script Component.

  - by Nev_Rahd

  Hello, In my Script Component, am trying to execute Stored Procedure = which return multiple rows = of which need to generate output rows. Code as below: /* Microsoft SQL Server Integration Services Script Component * Write scripts using Microsoft Visual C# 2008. * ScriptMain is the entry point class of the script.*/ using System; using System.Data; using System.Data.SqlClient; using Microsoft.SqlServer.Dts.Pipeline.Wrapper; using Microsoft.SqlServer.Dts.Runtime.Wrapper; [Microsoft.SqlServer.Dts.Pipeline.SSISScriptComponentEntryPointAttribute] public class ScriptMain : UserComponent { SqlConnection cnn = new SqlConnection(); IDTSConnectionManager100 cnManager; //string cmd; SqlCommand cmd = new SqlCommand(); public override void AcquireConnections(object Transaction) { cnManager = base.Connections.myConnection; cnn = (SqlConnection)cnManager.AcquireConnection(null); } public override void PreExecute() { base.PreExecute(); } public override void PostExecute() { base.PostExecute(); } public override void InputRows_ProcessInputRow(InputRowsBuffer Row) { while(Row.NextRow()) { DataTable dt = new DataTable(); cmd.Connection = cnn; cmd.CommandText = "OSPATTRIBUTE_GetOPNforOP"; cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add("@NK", SqlDbType.VarChar).Value = Row.OPNK.ToString(); cmd.Parameters.Add("@EDWSTARTDATE", SqlDbType.DateTime).Value = Row.EDWEFFECTIVESTARTDATETIME; SqlDataAdapter adapter = new SqlDataAdapter(cmd); adapter.Fill(dt); foreach (DataRow dtrow in dt.Rows) { OutputValidBuffer.AddRow(); OutputValidBuffer.OPNK = Row.OPNK; OutputValidBuffer.OSPTYPECODE = Row.OSPTYPECODE; OutputValidBuffer.ORGPROVTYPEDESC = Row.ORGPROVTYPEDESC; OutputValidBuffer.HEALTHSECTORCODE = Row.HEALTHSECTORCODE; OutputValidBuffer.HEALTHSECTORDESCRIPTION = Row.HEALTHSECTORDESCRIPTION; OutputValidBuffer.EDWEFFECTIVESTARTDATETIME = Row.EDWEFFECTIVESTARTDATETIME; OutputValidBuffer.EDWEFFECTIVEENDDATETIME = Row.EDWEFFECTIVEENDDATETIME; OutputValidBuffer.OPQI = Row.OPQI; OutputValidBuffer.OPNNK = dtrow[0].ToString(); OutputValidBuffer.OSPNAMETYPECODE = dtrow[1].ToString(); OutputValidBuffer.NAMETYPEDESC = dtrow[2].ToString(); OutputValidBuffer.OSPNAME = dtrow[3].ToString(); OutputValidBuffer.EDWEFFECTIVESTARTDATETIME1 = Row.EDWEFFECTIVESTARTDATETIME; OutputValidBuffer.EDWEFFECTIVEENDDATETIME1 = Row.EDWEFFECTIVEENDDATETIME; OutputValidBuffer.OPNQI = dtrow[6].ToString(); } } } public override void ReleaseConnections() { cnManager.ReleaseConnection(cnn); } } This is always skipping the first row. while(Row.NextRow()) is always bringing the second row of the input buffer. What am I doing wrong. Thanks

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