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  • CPU, Memory, Network, IO resources are under utilized when I tried various JMeter load testing

    - by Jaiganesh
    CPU, Memory, Network, IO resources are under utilized when I tried various JMeter load testing. I have given below the details. Hardware: 1 Core with 2 GB RAM OS: Ubuntu 12.04 LTS Server Edition Application: PHP (using JQuery, Ajax) JMeter Parameters: 10, 20, 30, 40 Hits per minute 220 Test Cases per hit 2.03 MB per hit I am not clear, why these resources are under utilized. Please help me to resolve this.

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  • Apache keeps crashing due to unable to create worker thread

    - by Dina Abu-khader
    Hello , Am getting a lot of these in our error log ((11)Resource temporarily unavailable: apr_thread_create: unable to create worker thread) and (110)Connection timed out: proxy: HTTP: attempt to connect to 127.0.0.1:80 (*) failed The parameters of the worker in httpd.conf are as follows StartServers 8 ServerLimit 128 MaxClients 2048 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 32 MaxRequestsPerChild 10000 I have changed the stack size in limit.conf but still not helping , Can anyone please help me ?

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  • Trying to setup postfix

    - by Frexuz
    I used this guide: http://jonsview.com/how-to-setup-email-services-on-ubuntu-using-postfix-tlssasl-and-dovecot telnet localhost 25 says 220 episodecalendar.com ESMTP Postfix (Ubuntu) ehlo localhost 250-episodecalendar.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN Installation seems fine? /var/log/mail.log says Nov 26 14:04:06 ubuntu postfix/pickup[12107]: A742E2B9E1: uid=0 from=<root> Nov 26 14:04:06 ubuntu postfix/cleanup[12114]: A742E2B9E1: message-id=<[email protected]> Nov 26 14:04:06 ubuntu postfix/qmgr[12108]: A742E2B9E1: from=<[email protected]>, size=300, nrcpt=1 (queue active) Nov 26 14:04:06 ubuntu postfix/local[12115]: A742E2B9E1: to=<[email protected]>, relay=local, delay=3.3, delays=3.3/0/0/$ Nov 26 14:04:06 ubuntu postfix/cleanup[12114]: AD2662B9E0: message-id=<[email protected]> Nov 26 14:04:06 ubuntu postfix/qmgr[12108]: AD2662B9E0: from=<>, size=2087, nrcpt=1 (queue active) Nov 26 14:04:06 ubuntu postfix/bounce[12117]: A742E2B9E1: sender non-delivery notification: AD2662B9E0 Nov 26 14:04:06 ubuntu postfix/local[12115]: AD2662B9E0: to=<[email protected]>, relay=local, delay=0.02, delays=0.01/0/0/0$ Nov 26 14:04:06 ubuntu postfix/qmgr[12108]: AD2662B9E0: removed Nov 26 14:04:06 ubuntu postfix/qmgr[12108]: A742E2B9E1: removed I'm not really understanding the log file, and obviously I'm not getting any emails. Right now I'm running Ubuntu on a Virtualbox (development box). Is that a problem? The internet connection works fine on it. What about domains etc..? edit: /etc/postfix/main.cf # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_use_tls = yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. #myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key smtpd_use_tls = yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client.

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  • HTML tabindex: Put some links last without complete enumeration

    - by Emanuel Berg
    I know I can use the HTML anchor attribute tabindex to set the tabindex of links, i.e., in what order they get focused when the user hits Tab (or Shift-Tab). But, I have a home page with tons of links, and to enumerate all those is a lot of work. The actual case is, I have four image links that by default gets index 1, 2, 3, and 4 (well, the behavior is equivalent, at least). But, I'd much rather have the first non-image link as number 1. Check it out here and you'll understand immediately. I tried to give the first non-image link (the link I desire to have tabindex 1) - I tried to give it tabindex 1 explicitly, hoping that it would cascade from there, but it didn't (i.e., the first image link got implicit tabindex 2). I also tried to give the image links ridiculously high tabindexes, but that didn't work: as the other links didn't have tabindexes at all, those highs were still "first". As a last resort (the solution currently employed) I gave the image links all tabindex -1. That makes for logical tabbing, but, it is suboptimal, as those image links are excluded from the tab loop - a user tabbing away will probably never realize that the images are clickable. I'd like them to be reachable with tabbing, but last, after all the ordinary links. If you wonder why I'm so determined to achieve this, it has to do with my own finger habits: I almost exclusively search for links, tab back, tab forth, etc., and very seldom using the mouse. Note: I'll accept a script to change the actual HTML for a complete enumeration, if you convince me there is no "set" way to solve this problem.

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  • How does Windows Task Scheduler detect that a task is already running?

    - by Dan C
    I have an application on Windows Server 2008 that takes different command-line parameters. For example: myapp.exe /A myapp.exe /B I have created a task scheduler task for each of those. While "myapp.exe /A" is running, I want to prevent another instance of it from starting. However, I still want "myapp.exe /B" to be able to run (again, though only one instance of it at a time). How can I set this up?

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  • Command line options in Filezilla.

    - by Quintin Par
    How do I invoke Filezilla from the command line to upload the contents of a directory? I would also like to set parameters like overwrite all etc. From help page all I see is options for opening Filezilla with specific server etc, but not to upload...

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  • Connection problem to MySQL on another machine on LAN

    - by Ankur
    I'm having trouble connecting to a MySQL database on the other machine on the same network. Could not connect to the specified instance. MySQL error number 1130 Host 'abc' is not allowed to connect to this MySQL server (Pinging ok time 1-3 ms ttl =128) I've checked out the following: TCP/IP enabled RegEdit under hlocal machine .... parameters .. maxUserpORT And timedelay.. Grant all . to 'root'@'Myipaddress'

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  • Win7 Install - diskpart shrink command

    - by chris
    I have an existing XP installation on a 160GB disk, with about 90 GB free. I'm trying to install Win7 on the same HDD, following directions from here. The question is: How long should it take to run the "shrink" command, given the above parameters? How much space will that free up for Win7?

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  • double-click to run .sh file

    - by Delirium tremens
    GUI: I changed the permissions of an sh file, so that I can read, write and execute it. I double-clicked it, selected run in Terminal, but it didn't run. I double-clicked it, selected run, but it didn't run. Command-Line: bash *filename* runs it sh *filename* runs it The file content is: #!/bin/bash # get dirsyncpro home DIRSYNCPRO_HOME="$(dirname $0)" # start programm and pass any parameters java -Xmx512M -jar "$DIRSYNCPRO_HOME/dirsyncpro.jar" $* Works in this person's computer: http://www.knowliz.com/2008/08/how-to-installrun-sh-file-in-linux.html What's going on?

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  • Powershell Remoting Handover Variables

    - by icnivad
    I've opened a Remote Session s1, and like to run a function with Parameters i handover in my scriptblock: Simplified example with Write-Host: $a = "aaa" $b = "bbb" $c = "ccc" $d = "ddd" Write-Host "AAAAA: $a $b $c $d" #This works fine as it's locally Invoke-Command -Session $s1 -scriptblock {Write-Host "BBBBB: $a $b $c $d"} #These variables are empty What is the cleanest way to handover Variables (I normally receive from a local csv file) to the scriptblock?

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  • How to connect a Bluetooth network connection using the command line

    - by Ed Guiness
    I can enable a Local Area Network interface for my machine with the command netsh interface set interface "Local Area Connection" ENABLED Is there an equivalent command to connect a bluetooth network connection? I've tried netsh interface set interface "Bluetooth" ENABLED but it seems to have no effect, the connection remains disconnected. I also tried netsh interface set interface "Bluetooth" connect=CONNECTED but this returns One or more essential parameters not specified I know this Bluetooth connection is otherwise ok since I am able to connect using Control Panel Network Connections, right-clicking on Bluetooth Connect.

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  • Problem installing iATKOS S3 Version 2 Snow Leopard 10.6.3 on DELL Precision T5500 Desktop

    - by Matias Dominoni
    Someone managed to install this right? I've used the following parameters: -v -x -f cpus=1 busratio=22 After installation, boot fails with a Kernel Panic. The exact error here: http://www.insanelymac.com/forum/index.php?showtopic=182609&mode=linearplus I'm aware that is very annoying installation. http://www.insanelymac.com/forum/index.php?showtopic=222386 Does anyone knows a guide to follow up or any other distrubution that works?

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  • Configuring my Linux firewall for Tomcat

    - by David Pinn
    I'm following some instructions for Installing Tomcat. They require me to add the following line to my iptables file: -A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 8080 --syn -j ACCEPT Having carefully read the man page for iptables, I have learned what the parameters do, except for the first one. What does -A RH-Lokkit-0-50-INPUT do, and can you confirm that it is sensible in this case?

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  • Windows Firewall Software to Filter Transit Traffic

    - by soonts
    I need to test my networking code for Nintendo Wii under the conditions when some specific Internet server is not available. Wii is connected to my PC with crossover ethernet cable. PC has 2 NICs. PC is connected to hardware router with ethernet cable. The hardware router serves as NAT and has an internet connected to its uplink. I set the Wii to be in the same lan as PC by using Windows XP Network bridge. I can observe the WII network traffic using e.g. Wireshark sniffer. Is there a software firewall that can selectively filter out transit traffic? (e.g. block outgoing TCP connections to 123.45.67.89 to port 443) I tried Outpost Pro 2009 and Comodo. Outpost firewall blocks all transit traffic with it's implicit "block transit packet" rule. If the transit traffic is explicitly allowed by creating the system-wide low level rule, then it's allowed completely and no other filter can selectively block it. Comodo firewall only process rules when the packet has localhost's IP as either source or destination, allowing the rest of the traffic. Any ideas? Thanks in advance! P.S. Platform is Windows XP 32 bit, no other OSes is allowed, Windows ICS (Internet Connection Sharing) doesnt work since the Wii is unable to connect, becides I don't like the idea of adding one more level of NAT.

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  • How should I set up protection for the database against sql injection when all the php scripts are flawed?

    - by Tchalvak
    I've inherited a php web app that is very insecure, with a history of sql injection. I can't fix the scripts immediately, I rather need them to be running to have the website running, and there are too many php scripts to deal with from the php end first. I do, however, have full control over the server and the software on the server, including full control over the mysql database and it's users. Let's estimate it at something like 300 scripts overall, 40 semi-private scripts, and 20 private/secure scripts. So my question is how best to go about securing the data, with the implicit assumption that sql injection from the php side (e.g. somewhere in that list of 300 scripts) is inevitable? My first-draft plan is to create multiple tiers of different permissioned users in the mysql database. In this way I can secure the data & scripts in most need of securing first ("private/secure" category), then the second tier of database tables & scripts ("semi-private"), and finally deal with the security of the rest of the php app overall (with the result of finally securing the database tables that essentially deal with "public" information, e.g. stuff that even just viewing the homepage requires). So, 3 database users (public, semi-private, and secure), with a different user connecting for each of three different groups of scripts (the secure scripts, the semi-private scripts, and the public scripts). In this way, I can prevent all access to "secure" from "public" or from "semi-private", and to "semi-private" from "public". Are there other alternatives that I should look into? If a tiered access system is the way to go, what approaches are best?

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  • SSD and intel i5 lagging

    - by Marek Javurek
    my "new" notebook has some really wierd lags during work, youtube video etc etc... Sometimes it has bluescreen during booting, sometimes after reboot. All my drivers are updated and SSD firmware too. this is my notebook parameters: Operating System MS Windows 7 64-bit SP1 CPU Intel Core i5 @ 2.40GHz: 57 °C Sandy Bridge 32nm Technology RAM 8,00 GB Dual-Channel DDR3 @ 665MHz (9-9-9-24) Motherboard LENOVO 12985VG (CPU): 58 °C Graphics SyncMaster (1680x1050@60Hz) AMD Radeon HD 6630M Series (Lenovo) Hard Drives 125GB Crucial M4-CT128M4SSD1 ATA Device (SATA-SSD) full specs here: http://speccy.piriform.com/results/Khr265gWVgk6vKTMrhdfhlS

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  • How to Enable IPtables TRACE Target on Debian Squeeze (6)

    - by bernie
    I am trying to use the TRACE target of IPtables but I can't seem to get any trace information logged. I want to use what is described here: Debugger for Iptables. From the iptables man for TRACE: This target marks packes so that the kernel will log every rule which match the packets as those traverse the tables, chains, rules. (The ipt_LOG or ip6t_LOG module is required for the logging.) The packets are logged with the string prefix: "TRACE: tablename:chain- name:type:rulenum " where type can be "rule" for plain rule, "return" for implicit rule at the end of a user defined chain and "policy" for the policy of the built in chains. It can only be used in the raw table. I use the following rule: iptables -A PREROUTING -t raw -p tcp -j TRACE but nothing is appended either in /var/log/syslog or /var/log/kern.log! Is there another step missing? Am I looking in the wrong place? edit Even though I can't find log entries, the TRACE target seems to be set up correctly since the packet counters get incremented: # iptables -L -v -t raw Chain PREROUTING (policy ACCEPT 193 packets, 63701 bytes) pkts bytes target prot opt in out source destination 193 63701 TRACE tcp -- any any anywhere anywhere Chain OUTPUT (policy ACCEPT 178 packets, 65277 bytes) pkts bytes target prot opt in out source destination edit 2 The rule iptables -A PREROUTING -t raw -p tcp -j LOG does print packet information to /var/log/syslog... Why doesn't TRACE work?

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  • use nginx proxy_pass and rewrite to hide third party api credentials?

    - by brakertech
    Objective: I'd like to have nginx hide calls to a third party api Example Request: http://example.com/myapi/60601 Nginx rewritten proxy_pass request calls: http://api.remix.bestbuy.com/v1/stores(area(60601,10))?show=storeId,name&apiKey=redacted_24_character_string Code i've tried: This works but not for parameters location ^~ /myapi/ { rewrite ^/myapi/(.*) /api/check/$1/key/e95fad09aa5091b7734d1a268b53cef5 break; proxy_pass http://api.server.com/; }

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  • What commands are being sent to an exe?

    - by JL
    I have an application that calls a console based application when I open a file. I would like to somehow "spy" on this console application so that when it gets called I would like to see what command line parameters are being passed to this console app. Is this possible?

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  • Why is there a separate "unicorn_rails" for Rails apps?

    - by Ben Lee
    According to the Unicorn docs, there are different binaries for Rails apps and other Rack apps: non-Rails Rack applications In APP_ROOT, run: unicorn for Rails applications (should work for all 1.2 or later versions) In RAILS_ROOT, run: unicorn_rails They seem to also take the same command-line parameters. But Rails is built on top of rack, so I don't understand why this dichotomy is required. Is there any reason you can't just use unicorn for Rails apps?

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  • BEAST (Browser Exploit Against SSL/TLS) Vulnerability on Port 25 for Postfix

    - by Abdul Haseeb
    I am failing a PCI Compliant scan. I have successfully used RC4 ciphers for Apache setup but my Postfix configuration is still not fixed. What TLS configuration should i use in my main.cf file. my current configuration is as follows # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes tls_preempt_cipherlist = yes smtpd_tls_protocols = !SSLv2 smtpd_tls_mandatory_protocols = !SSLv2, SSLv3 smtpd_tls_cipherlist = RC4-SHA:+TLSv1:!SSLv2:+SSLv3:!aNULL:!NULL smtp_tls_cipherlist = RC4-SHA:+TLSv1:!SSLv2:+SSLv3:!aNULL:!NULL smtpd_tls_security_level = encrypt

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  • what is the location of the log file for bugzilla on windows

    - by mohang
    We are using Bugzlla on windows. We set up the SMTP server configuration in the admin parameters. But Bugzilla is unable to send emails. It always reports "Could not authenticate user". How to know the details of the error? Everything we configured are working fine when used in another system. Can you please point out the location of the log file Any points to troubleshoot the issue is greatly appreciated.

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