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  • Setting up SVN+SSH for multiple users through one local user.

    - by Warlax
    Hi, I need to make our SVN repository accessible through the firewall - but without creating a local user for each potential external user. Instead, I would like to set-up SVN+SSH to route all external users through a single local user name. We would like each external user to authenticate with SSH the regular way but then treat their instance of svnserve as if they're all that single local user and possibly, control what parts of the repository each external user can access. I know that I will need to set my svnserve config according to the official guide. I tried, but the instructions are fuzzy and I am relatively a Linux n00b. What exactly are the steps to proceed? and how would you go about testing this? Thanks for your help.

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  • PHP Script Won't Run - Apache2/MySQL Servers Running, PHP Installed - Ubuntu 10.04

    - by nicorellius
    I am trying to install a CRM on a Linux (Ubuntu 10.04) laptop to do some testing. Installing the current versions of Apache, MySQL and PHP, and getting the CRM to run is easy. It's when I try to go backwards and run it on a previous set of versions I run into problems. This is what I have done: I have installed Apache 2.2.14, MySQL 5.0.83, and PHP 5.2.8. When I type something like mysql --version I get back what I would expect: version and distribution info. The same goes for Apache2 and PHP. The Apache server is running and so is mysqld. So when I go to my browser and look at http://localhost/<CRM dir>/install.php Firefox offers to open the PHP file or save it, as if it doesn't recognize the file. What should happen is that I should get a welcome page and the installation wizard for this CRM distribution should start. I have tried so many different things I probably screwed up something along the way. I have restarted the servers over and over, and even recompiled the versions of MySQL and PHP with no problems. I am hoping I am overlooking something simple because I am lost. Any help is appreciated.

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  • cannot commit svn with dav on ubuntu

    - by hiddenkirby
    So there are several similar questions on serverfault ... but the solution is still eluding me. I am running subversion on ubuntu 9.04 .. through apache2.2.x .... i get Commit failed (details follow): Can't make directory '/home/kirb/svn/dav/activities.d': Permission denied when i attempt to commit. It is deffinitely a permissions issue... but how to fix it is still eluding me. my repository is in /home/kirb/svn. http://serverfault.com/questions/61573/svn-commit-error says to chgrp .. but i dont seem to be able to. all the apache dav stuff seems to be working though. I can access my repository just fine through a browser. apologies if i am missing something simple here. Thanks in advance, Kirb additional edit: i am not able to sudo chgrp on the directory at all sudo chgrp -R www-data /home/kirb/svn; chmod -R g+rwx /home/kirb/svn [sudo] password for kirb: chmod: changing permissions of/home/kirb/svn': Operation not permitted chmod: changing permissions of /home/kirb/svn/format': Operation not permitted chmod: changing permissions of/home/kirb/svn/conf': Operation not permitted chmod: cannot read directory /home/kirb/svn/conf': Permission denied chmod: changing permissions of/home/kirb/svn/locks': Operation not permitted chmod: cannot read directory /home/kirb/svn/locks': Permission denied chmod: changing permissions of/home/kirb/svn/db': Operation not permitted chmod: cannot read directory /home/kirb/svn/db': Permission denied chmod: changing permissions of/home/kirb/svn/README.txt': Operation not permitted chmod: changing permissions of /home/kirb/svn/hooks': Operation not permitted chmod: cannot read directory/home/kirb/svn/hooks': Permission denied`

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  • Ubuntu Laptop as a wireless hotspot on bridge mode

    - by nixnotwin
    I have a wired router to which my ubuntu laptop connects via ethernet. The wierless NIC of the laptop acts as a wireless hotspot on master mode. I use hostapd fo this. I have bridged eth0 and wlan0, so my wireless clients that connect to my laptop over wifi get ip from the wired router via dhcp, so the devices get registered at the wired router ( and the laptop is just an access point). I use the following commands to get my laptop+accesspoint working: sudo brctl addbr br0 sudo brctl addif br0 eth0 sudo hostapd /etc/hostapd/hostapd.conf & sudo dhclient -d br0 & sudo ifconfig wlan0 192.168.1.15 netmask 255.255.255.0 up sudo brctl addif br0 wlan0 These commands enable me to access internet on my wireless clients and also on the laptop which is acting as wireless accesspoint. But if I reboot the wired router (without rebooting the laptop that is acting as accesspoint), Internet access on the laptop+accesspoint gets lost, but on wireless clients it works fine. Even I have not been able to figure out a command which will reset the laptop interfaces to default settings, so everytime the router reboots, I have to reboot the laptop too to get into default settings so that I can re-enter the above mentioned commands. My first question is How can I have my bridge+accesspoint up and running even-though the router reboots? And is there a command to set the interfaces to a default state? (ifdown -a doesn't work, after issuing the command the bridge still remained).

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  • Samba between Ubuntu server 10.10 and Windows Vista, Windows 7

    - by chepukha
    I have a linux box running Linux server ubuntu 10.10. I have installed Samba on this linux box and want to share files with my laptops which run Windows Vista home and Windows 7 home. I have been struggling with the setup for almost a month but couldn't get it right. If I try to access share folder from Windows Vista, I get message "Windows cannot access \\server_ip_address". Error code: 0x80070035. The network path was not found. If I access from Windows 7, then after entering password to login I can see the list of share folders on Linux box. But if I click on a share folder, I get the same error message as above. Tail /var/log/samba/log.windows7-pc I got the following message: [2011/03/16 00:17:41.427238, 0] smbd/service.c:988(make_connection_snum) canonicalize_connect_path failed for service sharemedia, path /root/sharemedia Here is my setting in smb.conf [global] share modes = yes netbios name = Samba workgroup = WORKGROUP wins support = yes encrypt passwords = true [sharemedia] comment = Tesing sharing using Samba path=/root/sharemedia/ public = yes valid users = samba_usr_name ; make sure all files are sensible permissions create mask = 0660 force create mask = 0660 directory mask = 2770 force directory mask = 2770 directory security mask = 0000 ; Normal share parameters read only = no browseable = yes writable = yes guest ok = no

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  • Tomcat6 getting crashed at regular intervals installed in Ubuntu

    - by Milesh Rout
    I have installed Tomcat6 in Ubuntu OS and when I run my web application the server gets crashed at regular intervals. I have tried a lot but not getting the solution. I have increased the memory upto 2048mb but still getting such error. Following is the error I am getting. Any help would be really appreciated. org.apache.tomcat.util.http.Parameters processParametersINFO: Invalid chunk starting at byte [312] and ending at byte [312] with a value of [null] ignoredException in thread "Timer-1" Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0" Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2" Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1" Exception in thread "Timer-2" Exception in thread "http-8080-4" Exception in thread "http-8080-8" Exception in thread "http-8080-17" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.UpdateTimestampsCache.data" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.UpdateTimestampsCache.data" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.StandardQueryCache.data" Exception in thread "org.hibernate.cache.UpdateTimestampsCache.data" Exception in thread "com.safenet.usermgmt.User.data" Exception in thread "http-8080-7" Exception in thread "http-8080-12" Exception in thread "http-8080-16" Exception in thread "http-8080-14" Exception in thread "http-8080-13" Exception in thread "http-8080-15" Exception in thread "http-8080-6" OpenJDK Client VM warning: Exception java.lang.OutOfMemoryError occurred dispatching signal SIGTERM to handler- the VM may need to be forcibly terminated

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  • Local SSL connections are causing redirect loop (after Ubuntu update)

    - by codeinthehole
    Following a recent Ubuntu update, my local websites are no longer serving their pages over SSL. For example, my .htaccess file attempts to ensure /sign-in is always served over HTTPS: RewriteEngine On RewriteCond %{HTTPS} off RewriteCond %{REQUEST_URI} /sign-in RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [L,QSA,R=301] However when I make a request to /sign-in on the domain site2-local , I get the error "The page isn't redirecting properly" with the following in /var/log/apache2/error.log [Tue Jun 08 12:20:57 2010] [info] [client 127.0.1.1] Connection to child 0 established (server site1-local:443) [Tue Jun 08 12:20:57 2010] [info] Seeding PRNG with 656 bytes of entropy [Tue Jun 08 12:20:57 2010] [info] Initial (No.1) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.2) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.3) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.4) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.5) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.6) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.7) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.8) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.9) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:20:57 2010] [info] Subsequent (No.10) HTTPS request received for child 0 (server site2-local:443) [Tue Jun 08 12:21:12 2010] [info] [client 127.0.1.1] (70007)The timeout specified has expired: SSL input filter read failed. [Tue Jun 08 12:21:12 2010] [info] [client 127.0.1.1] Connection closed to child 0 with standard shutdown (server site2-local:443) There is a connection to site1-local (another site on my machine which shares the certificate), which I don't understand. Anyone know what is causing this issue?

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  • memory tuning with rails/unicorn running on ubuntu

    - by user970193
    I am running unicorn on Ubuntu 11, Rails 3.0, and Ruby 1.8.7. It is an 8 core ec2 box, and I am running 15 workers. CPU never seems to get pinned, and I seem to be handling requests pretty nicely. My question concerns memory usage, and what concerns I should have with what I am seeing. (if any) Here is the scenario: Under constant load (about 15 reqs/sec coming in from nginx), over the course of an hour, each server in the 3 server cluster loses about 100MB / hour. This is a linear slope for about 6 hours, then it appears to level out, but still maybe appear to lose about 10MB/hour. If I drop my page caches using the linux command echo 1 /proc/sys/vm/drop_caches, the available free memory shoots back up to what it was when I started the unicorns, and the memory loss pattern begins again over the hours. Before: total used free shared buffers cached Mem: 7130244 5005376 2124868 0 113628 422856 -/+ buffers/cache: 4468892 2661352 Swap: 33554428 0 33554428 After: total used free shared buffers cached Mem: 7130244 4467144 2663100 0 228 11172 -/+ buffers/cache: 4455744 2674500 Swap: 33554428 0 33554428 My Ruby code does use memoizations and I'm assuming Ruby/Rails/Unicorn is keeping its own caches... what I'm wondering is should I be worried about this behaviour? FWIW, my Unicorn config: worker_processes 15 listen "#{CAPISTRANO_ROOT}/shared/pids/unicorn_socket", :backlog = 1024 listen 8080, :tcp_nopush = true timeout 180 pid "#{CAPISTRANO_ROOT}/shared/pids/unicorn.pid" GC.respond_to?(:copy_on_write_friendly=) and GC.copy_on_write_friendly = true before_fork do |server, worker| STDERR.puts "XXXXXXXXXXXXXXXXXXX BEFORE FORK" print_gemfile_location defined?(ActiveRecord::Base) and ActiveRecord::Base.connection.disconnect! defined?(Resque) and Resque.redis.client.disconnect old_pid = "#{CAPISTRANO_ROOT}/shared/pids/unicorn.pid.oldbin" if File.exists?(old_pid) && server.pid != old_pid begin Process.kill("QUIT", File.read(old_pid).to_i) rescue Errno::ENOENT, Errno::ESRCH # already killed end end File.open("#{CAPISTRANO_ROOT}/shared/pids/unicorn.pid.ok", "w"){|f| f.print($$.to_s)} end after_fork do |server, worker| defined?(ActiveRecord::Base) and ActiveRecord::Base.establish_connection defined?(Resque) and Resque.redis.client.connect end Is there a need to experiment enforcing more stringent garbage collection using OobGC (http://unicorn.bogomips.org/Unicorn/OobGC.html)? Or is this just normal behaviour, and when/as the system needs more memory, it will empty the caches by itself, without me manually running that cache command? Basically, is this normal, expected behaviour? tia

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  • SMTP message rate control on Ubuntu 8.04, preferably with postfix

    - by TimDaMan
    Maybe I am chasing a bug but I am trying to set up a smtp proxy of sorts. I have a postfix server which receives all the email for a collection of servers/clients. It them uses a smarthost (relayhost=...) to forward it's mail to our corporate MTA. I would like to limit the number of messages an individual server can relay to prevent swamping the corporate MTA. Postfix has a program called "anvil" that is capable of tracking stats about mail to be used for such things but it doesn't seem to be executed. I ran "inotifywait -m /usr/lib/postfix/anvil" while I started postfix and sent a number of messages through it from a remote server. inotifywait indicated anvil was never run. Anyone gotten postfix/anvil rate controls to work? main.cf smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no append_dot_mydomain = no readme_directory = no myhostname = site-server-q9 alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = localhost relayhost = Out outgoing mail relay mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 10.0.0.0/8 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = 10.X.X.X smtpd_client_message_rate_limit = 1 anvil_rate_time_unit = 1h master.cf extract anvil unix - - - - 1 anvil smtp inet n - - - - smtpd

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  • Deploying a Django application in a virtual Ubuntu Server

    - by mfsaint
    I have a virtualbox machine running Ubuntu Server 10.04LTS. My intention is to this machine to work like a VPS, this way I can learn and prepare for when I get a VPS service. Apache+mod_wsgi for deploying the Django app seems the right choice to me. I have the domain (marianofalcon.com.ar) but nothing else, no DNS. The problem is that I'm pretty lost with all the deployment stuff. I know how to configure mod_wsgi(with the django.wsgi file) and apache(creating a VirtualHost). Something is missing and I don't know what it is. I think that I lack networking skills ant that's the big problem. Trying to host the app on a virtualbox adds some difficulty because I don't know well what IP to use. This is what I've got: file placed at: /etc/apache2/sites-available: NameVirtualHost *:80 <VirtualHost *:80> ServerAdmin [email protected] ServerName www.my-domain.com ServerAlias my-domain.com Alias /media /path/to/my/project/media DocumentRoot /path/to/my/project WSGIScriptAlias / /path/to/your/project/apache/django.wsgi ErrorLog /var/log/apache2/error.log LogLevel warn CustomLog /var/log/apache2/access.log combined </VirtualHost> django.wsgi file: import os, sys wsgi_dir = os.path.abspath(os.path.dirname(__file__)) project_dir = os.path.dirname(wsgi_dir) sys.path.append(project_dir) project_settings = os.path.join(project_dir,'settings') os.environ['DJANGO_SETTINGS_MODULE'] = 'myproject.settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler()

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  • Nginx + Ubuntu 9.10, gzip not functioning

    - by Matt
    Hey there, So I installed and configured Nginx 0.7.62 on a new Slicehost Ubuntu 9.10 slice. All seems to work fine with the server, except that gzip isn't working for one reason or another. I made sure that it's setting were correct in /etc/nginx/nginx.conf: user www-data; worker_processes 3; error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; events { worker_connections 1024; # multi_accept on; } http { include /etc/nginx/mime.types; access_log /var/log/nginx/access.log; sendfile on; #tcp_nopush on; keepalive_timeout 2; tcp_nodelay on; gzip on; gzip_comp_level 2; gzip_proxied any; gzip_types text/plain text/css application/x-javascript; gzip_disable "MSIE [1-6]\."; include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; } This normally wouldn't be a big deal, but gzip support could save considerable bandwidth for my site. Does anyone have any ideas of what to check, or has anyone else run into this problem?

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  • Ubuntu IP Configuration - multiple subnets & interfaces

    - by HaydnWVN
    Have a 'new' mailserver running postfix on Ubuntu. We are having some problems configuring the subnets & interfaces. Basically 2 subnets (.253. & .254.) need to be connected through the 3rd subnet (.252.) where the Router is residing. # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 10.62.254.199 netmask 255.255.0.0 network 10.62.254.0 broadcast 10.62.255.255 #gateway 10.62.252.138 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 10.62.252.138 dns-search ***.com auto eth1 iface eth1 inet static address 10.62.253.199 netmask 255.255.0.0 network 10.62.253.0 broadcast 10.62.255.255 #gateway 10.62.252.138 #dns-nameservers 10.62.254.199 10.62.253.199 10.62.252.199 dns-nameservers 10.62.252.138 dns-search ***.com auto eth2 iface eth2 inet static address 10.62.252.199 netmask 255.255.0.0 network 10.62.252.0 broadcast 10.62.255.255 gateway 10.62.252.138 #dns-nameservers 10.62.254.199 10.62.253.199 10.62.252.199 dns-search ***.com I have an external support company who are looking into this (they built and configured this server), but it's taking far too long... So I'm looking to highlight the mistake!

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  • What is stable as Ubuntu in kernel space, but also cutting-edge as Fedora in user land?

    - by HRJ
    I am a long time Fedora user (since Fedora 6). Previously I have used Gentoo (for 2 years) and Slackware (for 5 years). The thing I liked about Fedora is frequency of package updates + great community. But lately I have noticed that Fedora is becoming too cutting-edge, nay, bleeding-edge. They changed the DNS client to be strict, without any warning, which broke some of their own packages for two Fedora releases. More critically, their LVM modules are not compatible across Fedora 12, 13, 14 (sometimes). Ubuntu is nicely polished but seems too stable for my liking. Some of the user-space applications are two major version numbers behind (even in testing or unstable or whatever they call it). Is there any Linux distro that has the stability of Ubuntu in kernel space and the bleeding edge in applications (especially harmless applications like, say, Stellarium)?

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  • Partitioning of Ubuntu server which will use OpenVZ and encrypted partitions (unlocked through SSH l

    - by DeletedAccount
    Hi, I'm about to install a server. Some context: My HDD is 1 TB and I have 2 GB RAM Ubuntu Server Lucid Lynx AMD 64 I will use OpenVZ and have most functionality separated into containers. To support disk quotas I need to use ext3 (not ext4) for the container partition. Each time I reboot the server I want to be forced to login through SSH and mount the encrypted partitions by typing my password (if someone steals the server, no critical data should be available). I want to have as much as possible encrypted. Yet I want to be able to login through SSH as I don't have a monitor or keyboard at the server. I am not sure how big I need my partitions to be. Being able to resize them later would be nice. I guess it implies using LVM? But the manual partition mount using SSH is also very important (in fact it's more important, if I have to pick one). How do you recommend that I partition the HDD? If I have daemons which needs the encrypted partitions, will they fail and can I just restart them after mounting the needed partitions?

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  • Can't upgrade MySQL Server on new Ubuntu 12.04 install

    - by user179627
    After freshly installing Ubuntu server 12.04, I did the usual apt-get update / apt-get upgrade, which failed for mysql-server-5.5: Setting up mysql-server-5.5 (5.5.31-0ubuntu0.12.04.2) ... start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however: Package mysql-server-5.5 is not configured yet. dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfigured I tried a wide variety a approaches suggested by googling, which involved various combinations of apt-get remove/purge/install -f/reinstall, etc., with no luck. I also tried downloading the package directly from launchpad.net and running dpkg -i on it (this had worked for a similar issue with a kernel upgrade), but to no avail. I'm not actually particularly interested in what's going on with mysql, per se (though I will need to figure it out at some time); at this point, my primary concern is that I am unable to apt-get install other packages! What to do?

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  • Cannot log-in in the install of phpmyadmin on Ubuntu

    - by Sylario
    I just installed phpmyadmin and i am trying to login in /phpmyadminpath/setup. I am greeted by an invite similar to an apache protected folder (log/password displayed in a browser pop-up, not an html popup) asking for login pass. I cannot login using system password(root) or mysql passsword(also root) I already have rails app using this mysql, and i checked the mysql password in the config files. I cannot run any mysql command in my console because of the following error : ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) What is wrong with phpmyadmin and mysql?

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  • mysql cluster problem in ubuntu

    - by Firman
    I have a problem while installing and configuring mysql cluster runnign on ubuntu 10.10 This is configuration for Cluster management [NDBD DEFAULT] NoOfReplicas=2 DataMemory=10MB IndexMemory=25MB MaxNoOfTables=256 MaxNoOfOrderedIndexes=256 MaxNoOfUniqueHashIndexes=128 [MYSQLD DEFAULT] [NDB_MGMD DEFAULT] [TCP DEFAULT] [NDB_MGMD] Id=1 # the NDB Management Node (this one) HostName=192.168.10.101 [NDBD] Id=2 # the first NDB Data Node HostName=192.168.10.11 DataDir= /var/lib/mysql-cluster [NDBD] Id=3 # the second NDB Data Node HostName=192.168.10.12 DataDir=/var/lib/mysql-cluster [MYSQLD] [MYSQLD] and this is configuration for both node : [mysqld] ndbcluster ndb-connectstring=192.168.10.101 # the IP of the MANAGMENT (THIRD) SERVER [mysql_cluster] ndb-connectstring=192.168.10.101 # the IP of the MANAGMENT (THIRD) SERVER After running all node and management, and I use ndb_mgm, the type 'show' command, and something appear like this : ndb_mgm> show Connected to Management Server at: localhost:1186 Cluster Configuration --------------------- [ndbd(NDB)] 2 node(s) id=2 @192.168.10.11 (mysql-5.1.39 ndb-7.0.9, Nodegroup: 0, Master) id=3 @192.168.10.12 (mysql-5.1.39 ndb-7.0.9, Nodegroup: 0) [ndb_mgmd(MGM)] 1 node(s) id=1 @192.168.10.101 (mysql-5.1.39 ndb-7.0.9) [mysqld(API)] 1 node(s) id=4 (not connected, accepting connect from 192.168.10.101) look at two last line.. not as what http://dev.mysql.com/tech-resources/articles/mysql-cluster-for-two-servers.html look like (see at point 4) anyone have ever had this problem ?

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  • How to represent a graph with multiple edges allowed between nodes and edges that can selectively disappear

    - by Pops
    I'm trying to figure out what sort of data structure to use for modeling some hypothetical, idealized network usage. In my scenario, a number of users who are hostile to each other are all trying to form networks of computers where all potential connections are known. The computers that one user needs to connect may not be the same as the ones another user needs to connect, though; user 1 might need to connect computers A, B and D while user 2 might need to connect computers B, C and E. Image generated with the help of NCTM Graph Creator I think the core of this is going to be an undirected cyclic graph, with nodes representing computers and edges representing Ethernet cables. However, due to the nature of the scenario, there are a few uncommon features that rule out adjacency lists and adjacency matrices (at least, without non-trivial modifications): edges can become restricted-use; that is, if one user acquires a given network connection, no other user may use that connection in the example, the green user cannot possibly connect to computer A, but the red user has connected B to E despite not having a direct link between them in some cases, a given pair of nodes will be connected by more than one edge in the example, there are two independent cables running from D to E, so the green and blue users were both able to connect those machines directly; however, red can no longer make such a connection if two computers are connected by more than one cable, each user may own no more than one of those cables I'll need to do several operations on this graph, such as: determining whether any particular pair of computers is connected for a given user identifying the optimal path for a given user to connect target computers identifying the highest-latency computer connection for a given user (i.e. longest path without branching) My first thought was to simply create a collection of all of the edges, but that's terrible for searching. The best thing I can think to do now is to modify an adjacency list so that each item in the list contains not only the edge length but also its cost and current owner. Is this a sensible approach? Assuming space is not a concern, would it be reasonable to create multiple copies of the graph (one for each user) rather than a single graph?

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  • WPF Dialog Box Property Value Editor access source control

    - by Cicik
    Hello, I have User control in WPF with dependency property DEP1 on which i set value by DialogPropertyValueEditor(code below): Public Class OPCItemDialogPropertyValueEditor Inherits DialogPropertyValueEditor Private res As New EditorResources() Public Sub New() Me.InlineEditorTemplate = TryCast(res("OPCItemInlineEditorTemplate"), DataTemplate) End Sub Public Overrides Sub ShowDialog(ByVal propertyValue As PropertyValue, ByVal commandSource As IInputElement) Dim window As New MyWindowToSetProperty(SomeParameter, "STRING Value Of ANother Property In control") If window.ShowDialog() Then propertyValue.Value = window.ChoosedOPCItem End If End Sub End Class I need to set value of property of my control as parameter("STRING Value Of ANother Property In control") for window from i set value to property DEP1 Thanks

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  • WPF Dialog Box Property Value Editor access source(parent) control

    - by Cicik
    Hello, I have User control in WPF with dependency property DEP1 on which i set value by DialogPropertyValueEditor(code below): Public Class OPCItemDialogPropertyValueEditor Inherits DialogPropertyValueEditor Private res As New EditorResources() Public Sub New() Me.InlineEditorTemplate = TryCast(res("OPCItemInlineEditorTemplate"), DataTemplate) End Sub Public Overrides Sub ShowDialog(ByVal propertyValue As PropertyValue, ByVal commandSource As IInputElement) Dim window As New MyWindowToSetProperty(SomeParameter, "STRING Value Of ANother Property In control") If window.ShowDialog() Then propertyValue.Value = window.ChoosedOPCItem End If End Sub End Class I need to set value of property of my control as parameter("STRING Value Of ANother Property In control") for window from i set value to property DEP1 Thanks

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  • COM Interop without regasm

    - by SLaks
    I'm a limited user, and I need to write an Outlook macro that exposes a C# library in Outlook 2003 and 2007. I do not have any admin privilges at all, not even at install time, so I can't run RegAsm and I can't (I assume) write a managed add-in. Is there any way to call .Net code from VBA in this scenario, or are there any other solutions? This is for personal use only, so an ugly hack is perfectly acceptable (so long as it works)

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  • Dialog Box Property Value Editor

    - by Cicik
    hello, i am new to WPF and i want to create user control with Dialog Box Property Value Editor in VB.NET. i find this example in C# and rewrite it to VB.NET but it does not work. Is creating property value editor in VB.NET somehow special, because i can`t find examples in VB.NET thanks a lot

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  • Does iPhone support "greying out" inactive controls?

    - by iter
    I have a control that goes inactive under some conditions in my iPhone app. I can [setUserInteractionEnabled: NO] on it and it doesn't respond to touches. Its appearance does not change however. Other environments I am familiar with "grey out" inactive controls. I wonder what is the idiomatic way to hint to the user that the control is inactive.

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