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• How does the linux kernel manage less than 1GB physical memory ?

  - by TheLoneJoker

  I'm learning the linux kernel internals and while reading "Understanding Linux Kernel", quite a few memory related questions struck me. One of them is, how the Linux kernel handles the memory mapping if the physical memory of say only 512 MB is installed on my system. As I read, kernel maps 0(or 16) MB-896MB physical RAM into 0xC0000000 linear address and can directly address it. So, in the above described case where I only have 512 MB: How can the kernel map 896 MB from only 512 MB ? What about user mode processes in this situation? Where are user mode processes in phys RAM? Every article explains only the situation, when you've installed 4 GB of memory and the kernel maps the 1 GB into kernel space and user processes uses the remaining amount of RAM. I would appreciate any help in improving my understanding. Thanks..!

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• Boost interprocess cached pools

  - by porgarmingduod

  I'm trying to figure out if my reading of the docs for boost interprocess allocators is correct. When using cached_adaptive_pool to allocate memory: typedef cached_adaptive_pool<int, managed_shared_memory::segment_manager> pool_allocator_t; pool_allocator_t pool_allocator(segment.get_segment_manager()); // Allocate an integer in the shared memory segment pool_allocator_t::pointer pool_allocator.allocate_one(); My understanding is that with multiple processes one can allocate and deallocate freely: That is, if I have a cached pool allocator for integers in one process, then it can deallocate integers allocated by similar pools in other processes (provided, of course, that they are working on the same shared memory segment). It may be a stupid question, but working with multiple processes and shared memory is hard enough, so I'd like to know 100% whether I got the basics right.

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• How to set WCF threads to schedual differently

  - by Gilad

  Hi, I'm running a winservice that has 2 main objectives. Execute/Handle exposed webmethods. Run Inner processes that consume allot of CPU. The problem is that when I execute many inner processes |(as tasks) that are queued to the threadpool or taskpool, the execution of the webmethods takes much more time as WCF also queues its executions to the same threadpool. This even happens when setting the inner processes task priority to lowest and setting the webmethods thread priority to heights. I hoped that Framework 4.0 would improve this, and they have, but still it takes quite allot of time for the system to handle the WCF queued tasks if the CPU is handling other inner tasks. Is it possible to change the Threadpool that WCF uses to a different one? Is it possible to manually change the task queue (global task queue, local task queue). Is it possible to manually handle 2 task queues that behave differently ? Any help in the subject would be appropriated. Gilad.

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• Multithreaded program in C: calculating thread stack space

  - by SlappyTheFish

  Situation: I am writing a program in C that maintains a number of threads. Once a thread ends, a new one is created. Each thread forks - the child runs a PHP process via exec() and the parent waits for it to finish. Each PHP process takes the next item from a queue, processes it and exits. Basic code: http://www.4pmp.com/2010/03/multitasking-php-in-parallel/ Problem: The PHP processes are Symfony tasks and Symfony requires a fairly huge amount of memory. How can I safely calculate the required stack space for each thread so that PHP processes will have enough memory? The memory limit set in php.ini is 128Mb so should I allocate this much space in the stack?

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• shell script redirect output

  - by Andy

  I have a shell script to monitor process due to preventing the process closed. If the process is closed, that script will restart it. BTW, when the system starts, the crontab will run the script automatically. How can I get the output of the process which started by the shell script? #!/bin/bash PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH while : do if [ -z "$(ps -ef | grep -v grep | grep 225.0.6.4)" ]; then date +"%m-%d-%y %T" >> /home/andy/log/stream.log echo "225.0.6.4 - 103 not worked and restart process" >> /home/andy/log/stream.log echo "225.0.6.4 - 103 not worked and restart process" /usr/bin/tzap -a 1 -c /home/andy/channels.conf -o - -r -p "D" | /home/andy/ffmpeg -f mpegts -i pipe:0 -c:v libx264 -preset medium -crf 23 -bufsize 3000K -minrate 1200k -maxrate 1200k -pix_fmt yuv420p -g 50 -s 1024x768 -acodec libmp3lame -b:a 128k -ac 2 -ar 44100 -f mpegts udp://225.0.6.4:50000 & fi sleep 1 done

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• Run web.py as daemon.

  - by mamcx

  I have a simple web.py program to load data. In the server I don't want to install apache or any webserver. I try to put it as a background service with http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/ And subclassing: (from http://www.jejik.com/files/examples/daemon.py) class Daemon: def start(self): """ Start the daemon """ ... PID CHECKS.... # Start the daemon self.daemonize() self.run() #My code class WebService(Daemon): def run(self): app.run() if __name__ == "__main__": if DEBUG: app.run() else: service = WebService(os.path.join(DIR_ACTUAL,'ElAdministrador.pid')) if len(sys.argv) == 2: if 'start' == sys.argv[1]: service.start() elif 'stop' == sys.argv[1]: service.stop() elif 'restart' == sys.argv[1]: service.restart() else: print "Unknown command" sys.exit(2) sys.exit(0) else: print "usage: %s start|stop|restart" % sys.argv[0] sys.exit(2) However, the web.py software not load (ie: The service no listen) If I call it directly (ie: No using the daemon code) work fine.

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• Transform data in FMPXMLRESULT grammar into a "Content Standard for Digital Geospatial Metadata (CS

  - by Andrew Igbo

  I have a problem in FileMaker; I wish to link the METADATA element/FIELD element “NAME” attribute to its corresponding data in the RESULTSET element/COL element. However, I also wish to map the METADATA element/FIELD element “NAME” to "Content Standard for Digital Geospatial Metadata (CSDGM)" metadata elements Sample XML Metadata Record with CSDGM Essential Elements Louisiana State University Coastal Studies Institute 20010907 Geomorphology and Processes of Land Loss in Coastal Louisiana, 1932 – 1990 A raster GIS file that identifies the land loss process and geomorphology associated with each 12.5 meter pixel of land loss between 1932 and 1990. Land loss processes are organized into a hierarchical classification system that includes subclasses for erosion, submergence, direct removal, and undetermined. Land loss geomorphology is organized into a hierarchical classification system that includes subclasses for both shoreline and interior loss. The objective of the study was to determine the land loss geomorphologies associated with specific processes of land loss in coastal Louisiana.

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• Must all Concurrent Data Store (CDB) locks be explicitly released when closing a Berkeley DB?

  - by Steve Emmerson

  I have an application that comprises multiple processes each accessing a single Berkeley DB Concurrent Data Store (CDB) database. Each process is single-threaded and does no explicit locking of the database. When each process terminates normally, it calls DB-close() and DB_ENV-close(). When all processes have terminated, there should be no locks on the database. Episodically, however, the database behaves as if some process was holding a write-lock on it even though all processes have terminated normally. Does each process need to explicitly release all locks before calling DB_ENV-close()? If so, how does the process obtain the "locker" parameter for the call to DB_ENV-loc_vec()?

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• Create Out-Of-Process COM in C#/.Net ?

  - by Huck

  Hi, I need to create an out-of-process COM server (.exe) in C# that will be accessed by multiple other processes on the same box. The component has to be a single process because it will cache the information it provides to its consumers in memory. Note: the processes that will access my COM Server are mostly Matlab processes, thus the necessity for a COM interface. I have seen threads regarding creating in-process COM components in .Net on stack overflow (Create COM ...) and on the web, but am having a hard time to find a way to create out-of-process components with .Net. How is this achievable? Any suggested references? Thanks.

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• Why android app does not recognize GPRS, WiFi upon changing data connection

  - by Maxood

  If i turn off WiFi, i’m not able to open the app ( this is with no data connection, even without data connection it should display cached items ) If i tun off WiFi and turn on GPRS the app cannot recognize this and gives the error page no Wifi/GPRS connection. if i restart the phone with GPRS on the app works fine till i change data connection type. if i restart the phone with WiFi on the app works fine till i change the data connection type. whenever i change the data connection type i have to restart the phone so the app can recognize the connection type. Why my android app does not recognize WiFi, GPRS upon changing data connection in real time?

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• is there any cross platform process manager tool

  - by lvlv

  I need a program that is able to launch a set of processes according to a schedule/configuration; the program would run in the background and restart the processes in case they crash. There are standard tools for this kind of task on both windows and unix - what I need is a cross platform program which could run on different operating systems using the same configuration. A portable C/C++ library which implements the basic functionality (i.e. create processes, signal process termination events and all that) would be ok too.

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• Installing a condition handler in Common Lisp

  - by Paul Nathan

  The HTTP library Drakma on CLISP generates an error USOCKET:UNSUPPORTED due to a bug in Drakma+CLISP. However, it turns out that the CONTINUE restart seems to work fine. Therefore, I spent some time with CLtL and other references trying to determine how to write a restart handler. (defun http-request (url param) (handler-bind ((USOCKET:UNSUPPORTED #'(lambda (x) (invoke-restart 'continue))))) (drakma:http-request url :method :post :parameters param)) According to my best understanding, the above code should trap the error USOCKET:UNSUPPORTED. It doesn't; it seems to ignore the error binder. How do I fix this?

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• Can someone please explain to me the basic function of Intents in the Android OS?

  - by K-RAN

  I'm new to programming applications for the Android OS. As far as general architecture of the OS goes, I understand that processes are implemented as Linux processes and that each one is sandboxed. However, I'm utterly confused on the IPCs and syscalls (if any) used. I know that the IBinder is a form of this; parcels are sent back and forth between processes and Bundles are array forms of parcels (?). But even that is still unfamiliar to me. Same with Intents. All in all, I don't understand what kinds of IPCs are implemented and how. Could someone briefly explain to me the specific methods used by user level applications in Android OS to communicate with each other and the OS? I've done kernel programming and played with various IPCs in Linux (Ubuntu and Debian) so it would help immensely if this was all explained in relation to what I'm familiar with... Thanks in advance!

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• How does Linux blocking I/O actually work?

  - by tgguy

  In Linux, when you make a blocking i/o call like read or accept, what actually happens? My thoughts: the process get taken out of the run queue, put into a waiting or blocking state on some wait queue. Then when a tcp connection is made (for accept) or the hard drive is ready or something for a file read, a hardware interrupt is raised which lets those processes waiting to wake up and run (in the case of a file read, how does linux know what processes to awaken, as there could be lots of processes waiting on different files?). Or perhaps instead of hardware interrupts, the individual process itself polls to check availability. Not sure, help?

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• Single windows service to provide access to cached data?

  - by Matthias

  I need a solution where I have a single windows service providing access to cached data to various consumers: To an MVC web application, a .Net Assembly (COM interop) used within an classic ASP page, other windows services, a windows forms application. So the data must be accessible from various processes. The data being cached is read-only. For now, all processes are located on the same machine. The environment is .net framework 3.5 and c#. My question is, how can multiple appdomains/processes retrieve cached data from a single windows service?

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• Limit Apache to 1 request per process

  - by Gorilla3D

  I have a few long running processes on apache and when the server gets a bit of a load they all seem to couple into 3-4 processes. I've tried setting the MaxRequestsPerChild to 1 and that works, but spawning new processes all the time is expensive. Here is my current configuration: <IfModule prefork.c> StartServers 25 MinSpareServers 50 MaxSpareServers 50 ServerLimit 512 MaxClients 50 MaxRequestsPerChild 10 </IfModule> <IfModule worker.c> StartServers 25 MaxClients 50 MinSpareThreads 50 MaxSpareThreads 125 ThreadsPerChild 50 MaxRequestsPerChild 10 </IfModule>

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• Wastage of resources in Virtualization

  - by Sabeen Malik

  I am not sure if this is the write place to ask the question. However i hope it is. When looking for a VPS earlier today, I was trying to understand how each container would work in the background. Keeping in mind the fact that the operating system uses most of the power and power on a system, wouldn't having multiple operating systems in the same machine mean more wastage of resources. For instance if i was running centOS on a dedicated box and it was running lets say 20 background OS level processes. Then i go and install a virtualization platform and install 5 more centOS virtual machines in the same system which are exactly the same as the host operating system. Doesn't this mean duplication of those 20 processes 6 times? So internally the context switching is happening between 120 processes instead of 20?

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• What happens to an instance of ServerSocket blocked inside accept(), when I drop all references to i

  - by Hanno Fietz

  In a multithreaded Java application, I just tracked down a strange-looking bug, realizing that what seemed to be happening was this: one of my objects was storing a reference to an instance of ServerSocket on startup, one thread would, in its main loop in run(), call accept() on the socket while the socket was still waiting for a connection, another thread would try to restart the component under some conditions, the restart process missed the cleanup sequence before it reached the initialization sequence as a result, the reference to the socket was overwritten with a new instance, which then wasn't able to bind() anymore the socket which was blocking inside the accept() wasn't accessible anymore, leaving a complete shutdown and restart of the application as the only way to get rid of it. Which leaves me wondering: with no references left to the ServerSocket instance, what would free the socket for a new connection? At what point would the ServerSocket become garbage collected? In general, what are good practices I can follow to avoid this type of bug?

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• Linq to xml : can't load all elements

  - by aleo

  hello i'm trying to load some elements from a xml file. but it XDocument.Load seems not treating xml file properly in this case, the method returns the content of the xml file as one node. here is my xml content: <processes> <process>winamp</process> <process>Acrobat</process> <process>WinRAR</process> </processes> and the code that reads the file: XDocument loaded = XDocument.Load("/process_list.xml"); var x = from a in loaded.Descendants("processes") select a.Element("process"); foreach (var t in x) { Console.WritleLine(t.Value.ToString()); } thank you

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• Check if a symlink has changed

  - by BCS

  I have a daemon that, when it's started, loads its data from a directory that happens to be a symlink. Periodically, new data is generated and the symlink updated. I want a bash script that will check if the current symlink is the same as the old one (that the daemon started with) and if not, restart the daemon. My current thought is: if [[ ! -e $old_dir || $(readlink "$data_dir") == $(readlink "$old_dir") ]]; then echo restart ... ln "$(readlink "$data_dir")" "$old_dir" -sf else echo no restart fi The abstract requirement is: each time the script runs, it needs to check if a symlink on a given path now points to a something other than it did the last time and if so do something. (The alternative would be to check if the data at the path has changed but I don't see that being any cleaner.) My questions: Is this a good approach? Does anyone have a better idea? Where should I put $old_dir?

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• mongrel not working - Ruby on Rails

  - by Steven

  I have deployed my rails app to a live server(linux) and I have successfully installed the the mongrel gems, and I can successfully start the server for my app but when i try to acceess the website on the server i get the error The server at 196.xx.xxx.xx is taking too long to respond. Is there anything i need to do to be able to access my app on the browser? Mongrel Logs ** Starting Rails with production environment... ** Rails loaded. ** Loading any Rails specific GemPlugins ** Signals ready. TERM = stop. USR2 = restart. INT = stop (no restart). ** Rails signals registered. HUP = reload (without restart). It might not work well. ** Mongrel 1.1.5 available at 0.0.0.0:3001 ** Writing PID file to /home/xxxxxxx.co.za/shared/log/mongrel.pid

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• SQL Server 2005 Transactions

  - by mcallec

  I have a long running stored proc (approx 30 mins) which is currently running within a transaction (isolation level snapshot). I've set the transaction to snapshot to avoid locking records preventing other processes from accessing the data. What I'm trying to do is write to and read from a status table, but although we're in a transaction I'd like to write to and read from the status table as if I'm not in a transaction. I need this so that other processes can read any updates to this table by my stored proc, and this stored proc can also read any inserts made by other processes. I realise that having my entire stored proc running within a transaction isn't recommended, but this has been done for other reasons and we need to stick with that approach. So my question is within a transaction, is it possible to execute a query or call a stored proc which effectively isn't enlisted in the transaction?

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• Weird vps server issue

  - by anon-user0

  I have an unmanaged linux vps Ubuntu 11.10 (Oneiric Ocelot). I have LNMP installed. Also php-fpm php-apc, varnish, memcache. I have (or rather had) several live sites on it. under normal load the server uses ~700 mb memory. But since last night its using only 20mb~ memory and a lot of the services seems to be down (according to htop) I only see nginx working and mysql starts up and goes does every few minutes on a loop. Here are some information on the server that might help you help me: root@server:~# uname -a Linux server 2.6.18-308.el5.028stab099.3 #1 SMP Wed Mar 7 15:56:00 MSK 2012 i686 i686 i386 GNU/Linux - root@server:~# ifconfig -a lo Link encap:Local Loopback LOOPBACK MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:127.0.0.2 P-t-P:127.0.0.2 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:12515 errors:0 dropped:0 overruns:0 frame:0 TX packets:9541 errors:0 dropped:1 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:7191214 (7.1 MB) TX bytes:536726 (536.7 KB) venet0:0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:176.31.158.78 P-t-P:176.31.158.78 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 - root@server:~# netstat -l Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 *:http-alt *:* LISTEN tcp 0 0 *:ssh *:* LISTEN tcp6 0 0 [::]:http-alt [::]:* LISTEN tcp6 0 0 [::]:ssh [::]:* LISTEN Active UNIX domain sockets (only servers) Proto RefCnt Flags Type State I-Node Path unix 2 [ ACC ] STREAM LISTENING 9307368 @/com/ubuntu/upstart - htop: http://i.stack.imgur.com/NHKYX.png EDIT: Stressed. mind was not working adding log: root@server:~# less /var/log/syslog Jun 27 05:27:42 server syslogd 1.5.0#6ubuntu1: restart. Jun 27 05:39:01 server CRON[9298]: (root) CMD ([ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) -delete) Jun 27 05:40:01 server CRON[9463]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jun 27 05:46:21 server sm-msp-queue[9480]: q5R1R7Ue004056: to=root, ctladdr=root (0/0), delay=00:19:14, xdelay=00:06:18, mailer=relay, pri=122407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 05:52:39 server sm-msp-queue[9480]: q5QMk7S9009582: to=root, ctladdr=root (0/0), delay=03:06:32, xdelay=00:06:18, mailer=relay, pri=842407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 06:00:01 server CRON[15671]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jun 27 06:06:22 server sm-msp-queue[15690]: q5R1R7Ue004056: to=root, ctladdr=root (0/0), delay=00:39:15, xdelay=00:06:18, mailer=relay, pri=212407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 06:09:01 server CRON[18114]: (root) CMD ([ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) -delete) Jun 27 06:12:40 server sm-msp-queue[15690]: q5QMk7S9009582: to=root, ctladdr=root (0/0), delay=03:26:33, xdelay=00:06:18, mailer=relay, pri=932407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 06:20:02 server CRON[21888]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jun 27 06:26:22 server sm-msp-queue[21907]: q5R1R7Ue004056: to=root, ctladdr=root (0/0), delay=00:59:15, xdelay=00:06:18, mailer=relay, pri=302407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 06:27:02 server CRON[24021]: (root) CMD (cd / && run-parts --report /etc/cron.hourly) Jun 27 06:32:40 server sm-msp-queue[21907]: q5QMk7S9009582: to=root, ctladdr=root (0/0), delay=03:46:33, xdelay=00:06:18, mailer=relay, pri=1022407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 06:39:01 server CRON[27941]: (root) CMD ([ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) -delete) Jun 27 06:40:02 server CRON[28110]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jun 27 06:46:22 server sm-msp-queue[28125]: q5R1R7Ue004056: to=root, ctladdr=root (0/0), delay=01:19:15, xdelay=00:06:18, mailer=relay, pri=392407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 06:52:40 server sm-msp-queue[28125]: q5QMk7S9009582: to=root, ctladdr=root (0/0), delay=04:06:33, xdelay=00:06:18, mailer=relay, pri=1112407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 06:52:40 server sm-msp-queue[28125]: q5QMk7S9009582: q5R2e4uo028125: sender notify: Warning: could not send message for past 4 hours Jun 27 06:52:44 server sm-msp-queue[28125]: q5R2e4uo028125: to=root, delay=00:00:04, xdelay=00:00:04, mailer=relay, pri=33690, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 07:00:02 server CRON[1543]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jun 27 07:06:21 server sm-msp-queue[1560]: q5R2e4uo028125: to=root, delay=00:13:41, xdelay=00:06:18, mailer=relay, pri=123690, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 07:09:01 server CRON[3986]: (root) CMD ([ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) -delete) Jun 27 07:12:39 server sm-msp-queue[1560]: q5R1R7Ue004056: to=root, ctladdr=root (0/0), delay=01:45:32, xdelay=00:06:18, mailer=relay, pri=482407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 07:18:57 server sm-msp-queue[1560]: q5QMk7S9009582: to=root, ctladdr=root (0/0), delay=04:32:50, xdelay=00:06:18, mailer=relay, pri=1202407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 07:20:02 server CRON[7760]: (smmsp) CMD (test -x /etc/init.d/sendmail && /usr/share/sendmail/sendmail cron-msp) Jun 27 07:26:22 server sm-msp-queue[7775]: q5R2e4uo028125: to=root, delay=00:33:42, xdelay=00:06:18, mailer=relay, pri=213690, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 07:27:01 server CRON[9887]: (root) CMD (cd / && run-parts --report /etc/cron.hourly) Jun 27 07:32:40 server sm-msp-queue[7775]: q5R1R7Ue004056: to=root, ctladdr=root (0/0), delay=02:05:33, xdelay=00:06:18, mailer=relay, pri=572407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 07:38:58 server sm-msp-queue[7775]: q5QMk7S9009582: to=root, ctladdr=root (0/0), delay=04:52:51, xdelay=00:06:18, mailer=relay, pri=1292407, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection timed out with [127.0.0.1] Jun 27 07:39:01 server CRON[13813]: (root) CMD ([ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth : root@server:~# df -h Filesystem Size Used Avail Use% Mounted on /dev/simfs 20G 2.3G 18G 12% / - Jun 26 16:22:41 server varnishd[1413]: Child (32425) died signal=3 Jun 26 16:22:41 server varnishd[1413]: child (21687) Started Jun 26 16:22:41 server varnishd[1413]: Child (21687) said Child starts Jun 26 16:22:41 server varnishd[1413]: Child (21687) said SMF.s0 mmap'ed 1073741824 bytes of 1073741824 Jun 26 16:34:28 server -- MARK -- Jun 26 16:54:29 server -- MARK -- Jun 26 17:14:29 server -- MARK -- Jun 26 17:34:29 server -- MARK -- Jun 26 17:54:29 server -- MARK -- Jun 26 18:14:29 server -- MARK -- Jun 26 18:34:29 server -- MARK -- Jun 26 18:54:29 server -- MARK -- Jun 26 19:14:29 server -- MARK -- Jun 26 19:34:29 server -- MARK -- Jun 26 19:54:29 server -- MARK -- Jun 26 20:14:29 server -- MARK -- Jun 26 20:34:29 server -- MARK -- Jun 26 20:48:12 server exiting on signal 15 Jun 26 20:51:58 server syslogd 1.5.0#6ubuntu1: restart. Jun 26 20:52:01 server varnishd[1324]: Platform: Linux,2.6.18-308.el5.028stab099.3,i686,-sfile,-smalloc,-hcritbit Jun 26 21:11:58 server -- MARK -- Jun 26 21:31:58 server -- MARK -- Jun 26 21:51:58 server -- MARK -- Jun 26 22:11:58 server -- MARK -- Jun 26 22:31:58 server -- MARK -- Jun 26 22:51:58 server -- MARK -- Jun 26 23:11:58 server -- MARK -- Jun 26 23:31:58 server -- MARK -- Jun 26 23:51:58 server -- MARK -- Jun 27 00:11:58 server -- MARK -- Jun 27 00:23:42 server exiting on signal 15 Jun 27 02:21:10 server syslogd 1.5.0#6ubuntu1: restart. Jun 27 02:21:12 server varnishd[1341]: Platform: Linux,2.6.18-308.el5.028stab099.3,i686,-sfile,-smalloc,-hcritbit Jun 27 02:41:10 server -- MARK -- Jun 27 02:46:41 server syslogd 1.5.0#6ubuntu1: restart. Jun 27 03:20:44 server syslogd 1.5.0#6ubuntu1: restart. Jun 27 03:20:46 server varnishd[1238]: Platform: Linux,2.6.18-308.el5.028stab099.3,i686,-sfile,-smalloc,-hcritbit Jun 27 03:20:46 server varnishd[1238]: child (1239) Started Jun 27 03:20:46 server varnishd[1238]: Child (1239) said Child starts Jun 27 03:20:46 server varnishd[1238]: Child (1239) said SMF.s0 mmap'ed 1073741824 bytes of 1073741824 Jun 27 03:32:52 server exiting on signal 15 Jun 27 03:33:16 server syslogd 1.5.0#6ubuntu1: restart. Jun 27 03:33:31 server varnishd[1372]: Platform: Linux,2.6.18-308.el5.028stab099.3,i686,-sfile,-smalloc,-hcritbit Jun 27 03:53:16 server -- MARK -- Jun 27 04:13:16 server -- MARK -- Jun 27 04:33:16 server -- MARK -- Jun 27 04:53:16 server -- MARK -- Jun 27 05:13:16 server -- MARK -- Jun 27 05:27:42 server syslogd 1.5.0#6ubuntu1: restart. Jun 27 05:53:17 server -- MARK -- Jun 27 06:13:17 server -- MARK -- Jun 27 06:33:17 server -- MARK -- Jun 27 06:53:17 server -- MARK -- Jun 27 07:13:17 server -- MARK -- Jun 27 07:33:17 server -- MARK -- Jun 27 07:53:17 server -- MARK -- Jun 27 08:13:17 server -- MARK -- Jun 27 08:33:17 server -- MARK -- Jun 27 08:53:17 server -- MARK -- Jun 27 09:13:17 server -- MARK -- Jun 27 09:33:17 server -- MARK -- Jun 27 09:53:17 server -- MARK -- Jun 27 10:13:17 server -- MARK -- Jun 27 10:33:17 server -- MARK -- Jun 27 10:53:17 server -- MARK -- Jun 27 11:13:17 server -- MARK -- Jun 27 11:33:17 server -- MARK -- Jun 27 11:53:18 server -- MARK -- Jun 27 12:13:18 server -- MARK -- Jun 27 12:33:18 server -- MARK -- Jun 27 12:53:18 server -- MARK -- Jun 27 13:13:18 server -- MARK -- Jun 27 13:33:18 server -- MARK -- Jun 27 13:53:18 server -- MARK -- Jun 27 14:13:18 server -- MARK -- Jun 27 14:33:18 server -- MARK -- Jun 27 14:53:18 server -- MARK -- -- root@server:~# cat /var/log/nginx/error.log 2012/06/27 03:32:54 [alert] 1199#0: worker process 1203 exited on signal 9 2012/06/27 03:32:54 [alert] 1199#0: worker process 1200 exited on signal 9 2012/06/27 03:32:54 [alert] 1199#0: worker process 1201 exited on signal 9 2012/06/27 03:32:54 [alert] 1199#0: worker process 1202 exited on signal 9 root@server:~# cat /var/log/nginx/access.log 31.210.99.87 - - [27/Jun/2012:09:09:08 +0400] "GET /w00tw00t.at.ISC.SANS.DFind:) HTTP/1.1" 400 172 "-" "-" 88.191.138.103 - - [27/Jun/2012:13:27:08 +0400] "GET /cms/cmx.jsp HTTP/1.1" 301 184 "-" "-" 88.191.138.103 - - [27/Jun/2012:13:27:08 +0400] "GET /iesvc/iesvc.jsp HTTP/1.1" 301 184 "-" "-" 88.191.138.103 - - [27/Jun/2012:13:27:08 +0400] "GET /cmd2/index.jsp HTTP/1.1" 301 184 "-" "-" 88.191.138.103 - - [27/Jun/2012:13:27:09 +0400] "GET /cmd/index.jsp HTTP/1.1" 301 184 "-" "-" 58.97.147.197 - - [27/Jun/2012:17:17:19 +0400] "GET / HTTP/1.1" 301 184 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5" 58.97.147.197 - - [27/Jun/2012:17:17:37 +0400] "GET / HTTP/1.1" 301 184 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.56 Safari/536.5" 58.97.147.197 - - [27/Jun/2012:17:17:38 +0400] "-" 400 0 "-" "-" 58.97.147.197 - - [27/Jun/2012:17:17:38 +0400] "-" 400 0 "-" "-" 58.97.147.197 - - [27/Jun/2012:17:17:48 +0400] "-" 400 0 "-" "-" - root@server:~# cat /var/log/daemon.log Jun 26 20:48:10 server xinetd[1177]: Exiting... Jun 26 20:51:58 server xinetd[1174]: Reading included configuration file: /etc/xinetd.d/daytime [file=/etc/xinetd.d/daytime] [line=28] Jun 26 20:51:58 server xinetd[1174]: Reading included configuration file: /etc/xinetd.d/discard [file=/etc/xinetd.d/discard] [line=26] Jun 26 20:51:58 server xinetd[1174]: Reading included configuration file: /etc/xinetd.d/echo [file=/etc/xinetd.d/echo] [line=25] Jun 26 20:51:58 server xinetd[1174]: Reading included configuration file: /etc/xinetd.d/time [file=/etc/xinetd.d/time] [line=26] Jun 26 20:51:58 server xinetd[1174]: removing chargen Jun 26 20:51:58 server xinetd[1174]: removing chargen Jun 26 20:51:58 server xinetd[1174]: removing daytime Jun 26 20:51:58 server xinetd[1174]: removing daytime Jun 26 20:51:58 server xinetd[1174]: removing discard Jun 26 20:51:58 server xinetd[1174]: removing discard Jun 26 20:51:58 server xinetd[1174]: removing echo Jun 26 20:51:58 server xinetd[1174]: removing echo Jun 26 20:51:58 server xinetd[1174]: removing time Jun 26 20:51:58 server xinetd[1174]: removing time Jun 26 20:51:58 server xinetd[1174]: xinetd Version 2.3.14 started with libwrap loadavg options compiled in. Jun 26 20:51:58 server xinetd[1174]: Started working: 0 available services Jun 26 20:52:01 server vnstatd[1330]: vnStat daemon 1.11 started. Jun 26 20:52:01 server vnstatd[1330]: Monitoring: venet0 Jun 27 00:23:41 server xinetd[1174]: Exiting... Jun 27 02:21:12 server vnstatd[1349]: vnStat daemon 1.11 started. Jun 27 02:21:12 server vnstatd[1349]: Monitoring: venet0 Jun 27 03:20:44 server xinetd[1166]: attribute: disable should not be in default section [file=/etc/xinetd.conf] [line=12] Jun 27 03:20:44 server xinetd[1166]: Reading included configuration file: /etc/xinetd.d/chargen [file=/etc/xinetd.conf] [line=15] Jun 27 03:20:44 server xinetd[1166]: Reading included configuration file: /etc/xinetd.d/daytime [file=/etc/xinetd.d/daytime] [line=28] Jun 27 03:20:44 server xinetd[1166]: Reading included configuration file: /etc/xinetd.d/discard [file=/etc/xinetd.d/discard] [line=26] Jun 27 03:20:44 server xinetd[1166]: Reading included configuration file: /etc/xinetd.d/echo [file=/etc/xinetd.d/echo] [line=25] Jun 27 03:20:44 server xinetd[1166]: Reading included configuration file: /etc/xinetd.d/time [file=/etc/xinetd.d/time] [line=26] Jun 27 03:20:44 server xinetd[1166]: removing chargen Jun 27 03:20:44 server xinetd[1166]: removing chargen Jun 27 03:20:44 server xinetd[1166]: removing daytime Jun 27 03:20:44 server xinetd[1166]: removing daytime Jun 27 03:20:44 server xinetd[1166]: removing discard Jun 27 03:20:44 server xinetd[1166]: removing discard Jun 27 03:20:44 server xinetd[1166]: removing echo Jun 27 03:20:44 server xinetd[1166]: removing echo Jun 27 03:20:44 server xinetd[1166]: removing time Jun 27 03:20:44 server xinetd[1166]: removing time Jun 27 03:20:44 server xinetd[1166]: xinetd Version 2.3.14 started with libwrap loadavg options compiled in. Jun 27 03:20:44 server xinetd[1166]: Started working: 0 available services Jun 27 03:20:46 server vnstatd[1249]: vnStat daemon 1.11 started. Jun 27 03:20:46 server vnstatd[1249]: Monitoring: venet0 Jun 27 03:32:41 server xinetd[1166]: Exiting... Jun 27 03:33:32 server vnstatd[1380]: vnStat daemon 1.11 started. Jun 27 03:33:32 server vnstatd[1380]: Monitoring: venet0 root@server:~# - Anything else you need let me know

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• Lubuntu 13.10 unable to connect to cups localhost:631

  - by user142139

  I am using Lubuntu 13.10 (recently upgraded) and am trying to print to a network printer (HP photosmart 7960) through my router (US Robotics 5461). My printer is connected to the router via USB cable. Normally, I would use the cups configuration interface to set up the wireless connection to the printer. I was able to use the printer through the router wirelessly, using Ubuntu 12.04. Now, with my recently upgraded Lubuntu 13.10, I am unable to get the Cups config webpage (http://localhost:631) to come up. In Chromium, I get: This web page is not available. In Firefox, I get: Unable to connect. Firefox can't establish a connection to the server at localhost:631. The CUPS config file details are below. I have this website to help with the router connections for Linux: http://www.usr.com/support/5461/5461-files/printer_installation_linux/index.html My printer's address through the router is: http://192.168.2.1:1631/printers/My_Printer Can you tell me how to fix this? Or, what to add to the cups configuration file to make this work? Please help. Thanks psychicnut CUPS CONFIG FILE DETAILS: # Show general information in error_log. LogLevel warn MaxLogSize 0 SystemGroup lpadmin Listen /var/run/cups/cups.sock Listen /var/run/cups/cups.sock Listen 192.168.2.1:1631 Browsing Off BrowseLocalProtocols dnssd DefaultAuthType Basic WebInterface Yes <Location /> Order allow,deny </Location> <Location /admin> Order allow,deny </Location> <Location /admin/conf> AuthType Default Require user @SYSTEM Order allow,deny </Location> <Policy default> JobPrivateAccess default JobPrivateValues default SubscriptionPrivateAccess default SubscriptionPrivateValues default <Limit Create-Job Print-Job Print-URI Validate-Job> Order deny,allow </Limit> <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 Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document> Require user @OWNER @SYSTEM Order deny,allow </Limit> <Limit CUPS-Add-Modify-Printer CUPS-Delete-Printer CUPS-Add-Modify-Class CUPS-Delete-Class CUPS-Set-Default CUPS-Get-Devices> AuthType Default Require user @SYSTEM Order deny,allow </Limit> <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 Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs> AuthType Default Require user @SYSTEM Order deny,allow </Limit> <Limit Cancel-Job CUPS-Authenticate-Job> Require user @OWNER @SYSTEM Order deny,allow </Limit> <Limit All> Order deny,allow </Limit> </Policy> <Policy authenticated> JobPrivateAccess default JobPrivateValues default SubscriptionPrivateAccess default SubscriptionPrivateValues default <Limit Create-Job Print-Job Print-URI Validate-Job> AuthType Default Order deny,allow </Limit> <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 Cancel-My-Jobs Close-Job CUPS-Move-Job CUPS-Get-Document> AuthType Default Require user @OWNER @SYSTEM Order deny,allow </Limit> <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> <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 Cancel-Jobs CUPS-Accept-Jobs CUPS-Reject-Jobs> AuthType Default Require user @SYSTEM Order deny,allow </Limit> <Limit Cancel-Job CUPS-Authenticate-Job> AuthType Default Require user @OWNER @SYSTEM Order deny,allow </Limit> <Limit All> Order deny,allow </Limit> </Policy> JobPrivateAccess default JobPrivateValues default SubscriptionPrivateAccess default SubscriptionPrivateValues default

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• Print Any Document Type with AutoVue Document Print Services

  - by [email protected]

  The newly released AutoVue Document Print Services allow development organizations to automate and process high volume printing operations, of both business and technical document types, within their broader enterprise applications. For many organizations, their printing processes are challenged by the fact that they can only print a small subset of the documents required by their enterprise users. By integrating AutoVue Document Print Services, and deploying them in conjunction with their existing print server solutions, organizations can address that challenge and automate the printing of virtually any document type required in any business process, greatly extending the value of their print server solutions, and improving business processes and workforce productivity. For further details, check out the AutoVue Document Print Services datasheet.

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