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Articles indexed in September 2012

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  • Help file formats - MSHA files v CHM files

    - by TATWORTH
    Recently I was tasked with producing a help file from a C#/WPF/Crystal Reports application using Sandcastle. I have previously blogged about the problems in doing that and the change that is going into the next version of Sandcastle that allows the vagaries of Crystal (this missing BusinessObjects.Licensing.KeycodeDecoder) to be handled. At http://social.msdn.microsoft.com/Forums/en-US/devdocs/thread/0b110502-f5bb-4c56-96a5-4347a2a7a68a/, I describe how I tried each of the formats. Two of the formats could not be built and the error messages were not exactly helpful as to the cause. These two formats turned out to be obsolete. The MSHA format worked but was not suitable for a standalone application, so that left me with the older CHM format. I therefore asked on that thread "will the HTML Help 1 (CHM) format continue to be supported for the foreseeable future?".Rob Chandler, MVP in help systems, gave a very helpful answer, to the effect that there is not yet a replacement for the CHM format.

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  • TFS 2012 Upgrade and SQL Server - SharePoint - OS Requirements.

    - by Vishal
    Hello folks,Recently I was involved in Installation and Configuration of Team Foundation Server 2010 Farm for a client. A month after the installation and configuration was done and everything was working as it was supposed to, Microsoft released Team Foundation Server 2012 in mid August 2012. Well the company was using Borland Starteam as their source control and once starting to use TFS 2010, their developers and project managers were loving it since TFS is not just a source control tool and way much better then StarTeam. Anyways, long story short, they are now interested in thinking of upgrading to the newest version. Below are some basic Hardware and Software requirements for TFS 2012:Operating System:Windows Server 2008 with SP2 (only 64bit)Windows Server 2008 R2 with SP1 (only 64bit)Windows Server 2012 (only 64bit)SQL Server:SQL Server 2008 R2 and SQL Server 2012SQL Server 2008 is no longer supported.SQL Server Requirements for TFS.SharePoint Products:SharePoint Server 2010. (SharePoint Foundation 2010, Standard, Enterprise).MOSS 2007 (Standard, Enterprise)Windows SharePoint Services 3.0 (WSS 3.0)SharePoint Products Requirements for TFS.Project Server:Project Server 2010 with SP1.Project Server 2007 with SP2.Project Server Requirements for TFS.More information onf TFS Upgrade Requirements can be found here. Hardware Recommendations can be found here.Thanks,Vishal Mody

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  • O'Reilly Deal of the day - 5/JSep/2012 - Programming Windows 8 Applications with C#

    - by TATWORTH
    Today's deal of the day from O'Reilly at http://shop.oreilly.com/product/0636920024200.do?code=DEAL is Programming Windows 8 Applications with C# ."With Early Release e-books, you get books in their earliest form — the author's raw and unedited content as he or she writes — so you can take advantage of these technologies long before the official release of these titles. You'll also receive updates when significant changes are made, new chapters as they're written, and the final e-book bundle. If you want to build Windows 8 applications for desktops and the forthcoming Microsoft Surface tablet PC, this book will show you how to work with the Metro design language and the Windows RT operating system. You’ll learn this new landscape step-by-step, including the minute system details and design specifications necessary to innovate and build a variety of Windows 8 apps. It’s ideal for .NET developers who use C#."

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  • Get to Know a Candidate (1 of 25): Tom Hoefling&ndash;America&rsquo;s Party

    - by Brian Lanham
    DISCLAIMER: This is not a post about “Romney” or “Obama”. This is not a post for whom I am voting.  Information sourced for Wikipedia. If you recall, on Sunday I blogged about not voting against a candidate and, instead, voting for a candidate.  As promised, this is the first post of 25. Meet Tom Hoefling of America’s Party In addition to being America’s Party nominee, he’s also the national chairman of the party.  Mr. Hoefling also served as the political director for Alan Keyes’ political group America’s Revival.  He is a representative for the American Conservative Coalition.  Mr. Hoefling is on the ballot in:  CA, CO, FL and is a qualified write-in candidate in IN. America’s Party This party was originally known as “America’s Independent Party” and considers itself conservative. The following describes their standing on specific issues. * Tax Reform – The party seeks to reform the tax structure by advocating the repeal of the 16th Amendment, and despite the fact that many members support the FairTax, the platform remains open on what to replace the Federal income tax with. * Other - The party supports the Federal Marriage Amendment being added to the U.S. Constitution. It is also pro-life on abortion. Learn more about Tom Hoefling and America’s Party on Wikipedia.

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  • Working with documents and SharePoint - Best practices

    - by KunaalKapoor
    Follow these simple guidelines to make collaboration using SharePoint easier:1. File Name:While it is allowed to use spaces in your filename (and maybe it seems even logical to do so), don’t use them if your file will end up (or is born on) SharePoint. When you use the “download a copy” functionality, SharePoint will replace the spaces with an “_”. This might (will) result in inconsistency when you upload the “same” file again, since SharePoint will see this as a different file (since the filename is different). I recommend using a filename with Capitalization style naming guideline. For instance: the document “Overall governance model.docx” would be named “OverallGovernanceModel.docx”Use the TITLE field in the office applications to give your document a title (and subtitle and keywords, .) The title column can be used in a view in a library. You can get to the document properties by clicking on 'Office Button/Prepare/Properties'. (Office 2007). This is metadata that is stored with the document, and will remain in the document (even if you exchange this document via e-mail, via an external hard drive). The filename cannot be longer than 128 characters. (and that is IMHO far beyond reasonable) You cannot use any of these characters: ” # % & * : < > ? \ / { | } ~ 2. Versioning:SharePoint has a built-in versioning system. You can work with major (published) versions, and minor (draft) versions. Of each of these two document types, you can store a numbers of versions that are kept. Watch out, each version is saved, not only the delta between 2 versions, and this counts to your Site Collection Quota. (Example: you have a Word document with a size of 2 MB. When you keep 5 Drafts this will result in storing (and consuming) 10 MB.So, don’t call your document “NewUserAccountProcessDRAFTv1.docx”, but “NewUserAccountProcess.docx” and use versioning setting in your library.You can enable views on your library to display the version number.You can enable the version number to be displayed in a Word document.3. Use MetadataUse metadata to assign other properties to documents, so it can be easily identified, sorted- or grouped by.

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  • Lessons learnt in implementing Scrum in a Large Organization that has traditional values

    - by MarkPearl
    I recently had the experience of being involved in a “test” scrum implementation in a large organization that was used to a traditional project management approach. Here are some lessons that I learnt from it. Don’t let the Project Manager be the Product Owner First lesson learnt is to identify the correct product owner – in this instance the product manager assumed the role of the product owner which was a mistake. The product owner is the one who has the most to loose if the project fails. With a methodology that advocates removing the role of the project manager from the process then it is not in the interests of the person who is employed as a project manager to be the product owner – in fact they have the most to gain should the project fail. Know the time commitments of team members to the Project Second lesson learnt is to get a firm time commitment of the members on a team for the sprint and to hold them to it. In this project instance many of the issues we faced were with team members having to double up on supporting existing projects/systems and the scrum project. In many situations they just didn’t get round to doing any work on the scrum project for several days while they tried to meet other commitments. Initially this was not made transparent to the team – in stand up team members would say that had done some work but would be very vague on how much time they had actually spent using the blackhole of their other legacy projects as an excuse – putting up a time burn down chart made time allocations transparent and easy to hold the team to. In addition, how can you plan for a sprint without knowing the actual time available of the members – when I mean actual time, the exercise of getting them to go through all their appointments and lunch times and breaks and removing them from their time commitment helps get you to a realistic time that they can dedicate. Make sure you meet your minimum team sizes In a recent post I wrote about the difference between a partnership and a team. If you are going to do scrum in a large organization make sure you have a minimum team size of at least 3 developers. My experience with larger organizations is that people have a tendency to be sick more, take more leave and generally not be around – if you have a team size of two it is so easy to loose momentum on the project – the more people you have in the team (up to about 9) the more the momentum the project will have when people are not around. Swapping from one methodology to another can seem as waste to the customer It sounds bad, but most customers don’t care what methodology you use. Often they have bought into the “big plan upfront”. If you can, avoid taking a project on midstream from a traditional approach unless the customer has not bought into the process – with this particular project they had a detailed upfront planning breakaway with the customer using the traditional approach and then before the project started we moved onto a scrum implementation – this seemed as waste to the customer. We should have managed the customers expectation properly. Don’t play the role of the scrum master if you can’t be the scrum master With this particular implementation I was the “scrum master”. But all I did was go through the process of the formal meetings of scrum – I attended stand up, retrospectives and planning – but I was not hands on the ground. I was not performing the most important role of removing blockages – and by the end of the project there were a number of blockages “cropping up”. What could have been a better approach was to take someone on the team and train them to be the scrum master and be present to coach them. Alternatively actually be on the team on a fulltime basis and be the scrum master. By just going through the meetings of scrum didn’t mean we were doing scrum. So we failed with this one, if you fail look at it from an agile perspective As this particular project drew to a close and it became more and more apparent that it was not going to succeed the failure of it became depressing. Emotions were expressed by various people on the team that we not encouraging and enforced the failure. Embracing the failure and looking at it for what it is instead of taking it as the end of the world can change how you grow from the experience. Acknowledging that it failed and then focussing on learning from why and how to avoid the failure in the future can change how you feel emotionally about the team, the project and the organization.

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  • CSS hack for Google Chrome and Safari

    - by Renso
    When wanting to hack css in an external stylesheet just for Google Chrome and Safari. Here is an example of where I override the margin-top for Chrome and Safari.Normal:#AccountMaintenanceWrapper #callDetailsPreviewWrapper{    border: none;    padding: 0px;    width: 209px;    position: fixed;    margin-top: 84px;    z-index: 1;}Google Chrome and Safari:@media screen and (-webkit-min-device-pixel-ratio:0){    #AccountMaintenanceWrapper #callDetailsPreviewWrapper    {        margin-top: 12px;    }}

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  • Why CoffeeScript is an issue

    - by Renso
    Other than some obvious concerns, my main concern is support in the open source community. "anon" from the CoffeeScript team sent this to me after I requested input from the team to concerns I raised and wanted to get others' take on it:"Thanks for confirming that only idiots willingly program in Java and C#"or the following from the same person:"Oh and finally, you should definitely create jShort. Even though I know you will fail before you even start, I would love to laugh at your attempts and it would be perfect for you since you ride the short bus. "This kind of comment reflects badly on the CoffeeScript team and hence not an option for us as a company to consider. Another example of why some open-source community projects get no traction.

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  • Microsoft Press Deal of the day 4/Sep/2012 - Programming Microsoft® SQL Server® 2012

    - by TATWORTH
    Today's deal of the day from Microsoft Press at http://shop.oreilly.com/product/0790145322357.do?code=MSDEAL is Programming Microsoft® SQL Server® 2012 "Your essential guide to key programming features in Microsoft® SQL Server® 2012 Take your database programming skills to a new level—and build customized applications using the developer tools introduced with SQL Server 2012. This hands-on reference shows you how to design, test, and deploy SQL Server databases through tutorials, practical examples, and code samples. If you’re an experienced SQL Server developer, this book is a must-read for learning how to design and build effective SQL Server 2012 applications."

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  • What is testable code?

    - by Michael Freidgeim
    We are improving quality of code and trying to develop more unit tests. The question that developers asked  was  "How to make code testable ?"  From http://openmymind.net/2010/8/17/Write-testable-code-even-if-you-dont-write-tests/ First and foremost, its loosely coupled, taking advantage of dependency injection (and auto-wiring), composition and interface-programming. Testable code is also readable - meaning it leverages single responsibility principle and Liskov substitution principle.A few practical suggestions are listed in http://misko.hevery.com/code-reviewers-guide/More recommendations are in http://googletesting.blogspot.com/2008/08/by-miko-hevery-so-you-decided-to.htmlIt is slightly too theoretical - " the trick is translating these abstract concepts into concrete decisions in your code."

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  • O'Reilly deal of the week to 23:59 PT Sept 11 - Back-to-School Special

    - by TATWORTH
    At http://shop.oreilly.com/category/deals/b2s-2012-special.do, O'Reilly are offering up to 50% off a range of E-books, together with reductions on other items."Get definitive information on technology for developers, designers, admins – whatever you are or want to be. With our Back-to-School Special, you choose what to learn and we give you the tools to make it happen. Save 50% on eBooks and videos, 40% on print books from O'Reilly, Microsoft Press, SitePoint, and No Starch, or 30% on courses from O'Reilly School of Technology." There are some 37 books and e-books on offer together with 3 videos.

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  • redhat Apache fast-cgi selinux permissions

    - by Alejo JM
    My apache installation is running php as fastcgi, and the virtual hosts are pointing to /home/*/public_html. and the fastcgi are home/*/cgi-bin/php.fcgi the public_html setup with selinux was: /usr/sbin/setsebool -P httpd_enable_homedirs 1 chcon -R -t httpd_sys_content_t /home/someuser/public_html The owner and group are the user, for example the user "someuser": ls -all /home/someuser/cgi-bin/ drwxr-xr-x 2 someuser someuser 4096 Sep 7 13:14 . drwx--x--x 6 someuser someuser 4096 Sep 6 18:17 .. -rwxr-xr-x 1 someuser someuser 308 Sep 7 13:14 php.fcgi ls -all /home/someuser/public_html/ | greep info.php -rw-r--r-- 1 someuser someuser 24 Sep 3 16:24 info.php When is visits the site I get "Forbidden ..." and the log said: [Fri Sep 07 12:02:51 2012] [error] [client x.x.x.x] (13)Permission denied: access to /cgi-bin/php.fcgi/info.php denied My selinux conf is: SELINUX=enforcing SELINUXTYPE=targeted SETLOCALDEFS=0 So I kill Selinux (SELINUX=disabled), reboot the system and everything works !!!!! The problem is Selinux, I don't want disable Selinux. I trying this with no success: setsebool -P httpd_enable_cgi 1 chcon -t httpd_sys_script_exec_t /home/someuser/cgi-bin/php.fcgi chcon -R -t httpd_sys_content_t /home/someuser/cgi-bin Or maybe is better change Selinux SELINUX=enforcing to SELINUX=permissive And disable selinux for httpd ? (I think I better find the correct configuration) Thanks for any suggestion on this matter My environment: Red Hat Enterprise Linux Server release 5.8 (Tikanga) Server version: Apache/2.2.3 PHP 5.1.6 (cli) (built: Jun 22 2012 06:20:25) Copyright (c) 1997-2006 The PHP Group Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies Some logs: ps -ZC httpd LABEL PID TTY TIME CMD system_u:system_r:httpd_t 2822 ? 00:00:00 httpd system_u:system_r:httpd_t 2823 ? 00:00:00 httpd system_u:system_r:httpd_t 2824 ? 00:00:00 httpd system_u:system_r:httpd_t 2825 ? 00:00:00 httpd system_u:system_r:httpd_t 2826 ? 00:00:00 httpd system_u:system_r:httpd_t 2836 ? 00:00:00 httpd system_u:system_r:httpd_t 2837 ? 00:00:00 httpd system_u:system_r:httpd_t 2838 ? 00:00:00 httpd system_u:system_r:httpd_t 2839 ? 00:00:00 httpd system_u:system_r:httpd_t 2840 ? 00:00:00 httpd getsebool -a | grep httpd allow_httpd_anon_write --> off allow_httpd_bugzilla_script_anon_write --> off allow_httpd_cvs_script_anon_write --> off allow_httpd_mod_auth_pam --> off allow_httpd_nagios_script_anon_write --> off allow_httpd_prewikka_script_anon_write --> off allow_httpd_squid_script_anon_write --> off allow_httpd_sys_script_anon_write --> off httpd_builtin_scripting --> on httpd_can_network_connect --> off httpd_can_network_connect_db --> off httpd_can_network_relay --> off httpd_can_sendmail --> on httpd_disable_trans --> off httpd_enable_cgi --> on httpd_enable_ftp_server --> off httpd_enable_homedirs --> on httpd_execmem --> off httpd_read_user_content --> off httpd_rotatelogs_disable_trans --> off httpd_setrlimit --> off httpd_ssi_exec --> off httpd_suexec_disable_trans --> off httpd_tty_comm --> on httpd_unified --> on httpd_use_cifs --> off httpd_use_nfs --> off

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  • what's wrong with my Ubuntu 11.10 bind9 configuration?

    - by John Bowlinger
    I've followed several tutorials on installing your own nameservers and I'm pretty much at my wit's end, because I cannot get them to resolve. Note, the actual domain and ip address has been changed for privacy to example.com and 192.168.0.1. My named.conf.local file: zone "example.com" { type master; file "/var/cache/bind/example.com.db"; }; zone "0.168.192.in_addr.arpa" { type master; file "/var/cache/bind/192.168.0.db"; }; My named.conf.options file: options { forwarders { 192.168.0.1; }; auth-nxdomain no; # conform to RFC1035 listen-on-v6 { any; }; }; My resolv.conf file: search example.com. nameserver 192.168.0.1 My Forward DNS file: ORIGIN example.com. $TTL 86400 @ IN SOA ns1.example.com. root.example.com. ( 2012083101 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 3600 ) ; Negative Cache TTL example.com. NS ns1.example.com. example.com. NS ns2.example.com. example.com. MX 10 mail.example.com. @ IN A 192.168.0.1 ns1.example.com IN A 192.168.0.1 ns2.example.com IN A 192.168.0.2 mail IN A 192.168.0.1 server1 IN A 192.168.0.1 gateway IN CNAME ns1.example.com. headoffice IN CNAME server1.example.com. smtp IN CNAME mail.example.com. pop IN CNAME mail.example.com. imap IN CNAME mail.example.com. www IN CNAME server1.example.com. sql IN CNAME server1.example.com. And my reverse DNS: $ORIGIN 0.168.192.in-addr.arpa. $TTL 86400 @ IN SOA ns1.example.com. root.example.com. ( 2009013101 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 3600 ) ; Negative Cache TTL 1 PTR mail.example.com. 1 PTR server1.example.com. 2 PTR ns1.example.com. Yet, when I restart bind9 and do: host ns1.example.com localhost I get: Using domain server: Name: localhost Address: 127.0.0.1#53 Aliases: Host ns1.example.com.example.com not found: 2(SERVFAIL) Similarly, for: host 192.168.0.1 localhost I get: ;; connection timed out; no servers could be reached Anybody know what's going on? Btw, my domain name "www.example.com" that I've used in this question is being forwarded to my ISP's nameservers. Would that affect my bind9 configuration? I want to learn how to do set up nameservers on my own for learning, so that is why I'm going through all this trouble.

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  • Load balancing with Cisco router

    - by you8301083
    I have a Cisco router with two bonded T1's which are setup as a VPN to the main office. We need more bandwidth but can't get other connections (or it's too costly), so I would like to have a dsl connection installed. This DSL connection will run over a VPN to the same main office, but it won't be bonded with the T1's - so it won't act as a single connection. Since the three circuits won't act as a single connection (basically would be two connections 2 T1's + 1 DSL) we would have to split the network in half - but I don't want to do that. Instead, would it be possible to send all HTTP/HTTPS over the DSL connection but send all mission critical data (such as voice/active directory) over the T1's? I basically want to send specific ports over DSL and everything else over the T1's without separating half of the users traffic over the DSL and the rest over the T1's.

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  • Create and use intermediate certificate authority on Windows Server 2012?

    - by Sid
    Background: Server OS is Windows Server 2012. GUI is installed as we come upto speed with powershell. Setup is staging, not production (yet). We have our (internal, domain limited) Root CA installed. I would like to take the Root CA offline to secure storage but before that I'd like to setup an intermediate CA which can take over actual live, online (int-RA-net) functionality Can someone guide me covering: creating the intermediate CA certificate request installing the intermediate CA certificate on domain controller (certification authority role already installed with Root CA online right now) use the intermediate CA to generate a certificate (any use certificate, just for demonstration purposes) Obviously this certification chain would be invalid on computers outside our domain (self trusted root - our root certificate is NOT from common 3rd parties). This last point is NOT a problem.

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  • Do large corporations block jQuery content on web pages?

    - by Max Vernon
    We are currently redesigning our website. The company we've hired to do the redesign is advocating the use of jQuery to render the pages dynamically. Our SEO specialist is under the impression that many larger corporations may have jQuery blocked in their proxies to prevent their users from visiting sites like Facebook. Is this something you are aware of? Forgive me if this is off topic for SF.SE!

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  • Excel IP address and subnet to network and inverse mask [closed]

    - by Steve Dailey
    We need a script, marco or something in excel where we can take list like below interface Vlan100 ip address 192.168.1.3 255.255.255.0 interface Vlan101 ip address 192.168.2.3 255.255.255.128 interface Vlan102 ip address 192.168.2.130 255.255.255.128 interface Vlan103 ip address 192.168.3.3 255.255.255.240 etc... and produce a list like below ospf 1 undo silent-interface Vlan-interface100 undo silent-interface Vlan-interface101 undo silent-interface Vlan-interface102 undo silent-interface Vlan-interface103 area 0.0.0.0 network 192.168.1.0 0.0.0.255 network 192.168.2.0 0.0.0.127 network 192.168.2.128 0.0.0.127 network 192.168.3.0 0.0.0.15 so it will need to take an ip address/subnet mask and convert them to network number/inverse mask. I believe I can handle the Vlan manipulation with a substitution so no need to spend time on that.

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  • Command line import of database using latin1 encoding

    - by chrisjlee
    I'm using a particular cloud hosting solution (one which i won't name) and they don't provide ssh access so i'm at a whim on how the database is dumped. I downloaded the dump which is packed into a tar.gz file. I discover that this file utilizes latin1 encoding. Which i don't get to specify the encoding for the host i'm using because i don't have SSH access or DB access. I try to import it via command line for my local development environment (mysql -uroot foodb < file.db) like i usually do with other databases but am having problems. Is it possible to import a database via command line by specifying which encoding (preferably latin1) before importing it? Or do i have to convert it to UTF8?

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  • .htaccess deny from all does not work?

    - by jeffery_the_wind
    I am running Apache 2.2.20 on a Ubuntu 11.04 web server. I have a Joomla site running on it, but I have also added some custom content. In the main web directly I have added a folder /images/sub_folder and in this sub_folder I have put a bunch of pictures. I do not want anyone to be able to simply access these pictures directly from the web, so I made a .htaccess file in that sub_folder and just put the following line in it: deny from all There doesn't seem to be any effect, I can still access the images directly from a web browser. I have restarted the Apache service. What am I doing wrong? Thanks Tim

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  • Issue with domain redirection

    - by phphunger
    I have a flash games website which is hosted at godaddy server. But because of heavy traffic on my site the godaddy server gets down. So I changed the hosting to Midphase server. The strange thing is i have created new name servers and new database in my mid phase server but still the web site is coming from the godaddy server. When i do any modifications from the godaddy ftp i am getting the modifications but when i do any modifications in the mid phase server. No changes are happening. One strange thing is the who.is is showing the new name servers and new server details but not getting the new servers contents. Can anyone help me in this regard?

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  • PTR and A record must match?

    - by somecallmemike
    RFC 1912 Section 2.1 states the following: Make sure your PTR and A records match. For every IP address, there should be a matching PTR record in the in-addr.arpa domain. If a host is multi-homed, (more than one IP address) make sure that all IP addresses have a corresponding PTR record (not just the first one). Failure to have matching PTR and A records can cause loss of Internet services similar to not being registered in the DNS at all. Also, PTR records must point back to a valid A record, not a alias defined by a CNAME. It is highly recommended that you use some software which automates this checking, or generate your DNS data from a database which automatically creates consistent data. This does not make any sense to me, should an ISP keep matching A records for every PTR record? It seems to me that it's only important if the IP address that the PTR record describes is hosting a service that is sensitive to DNS being mismatched (such as email hosting). In that case the forward zone would be configured under a domain name (examples follow the format 'zone - record'): domain.tld -> mail IN A 1.2.3.4 And the PTR record would be configured to match: 3.2.1.in-addr.arpa -> 4 IN PTR mail.domain.tld. Would there be any reason for the ISP to host a forward lookup for an IP address on their network like this?: ispdomain.tld -> broadband-ip-1 IN A 1.2.3.4

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  • Host data transfer limit calculations and network protocol headers

    - by UpTheCreek
    OK, this might be a really stupid question, but... I'm building a web app that utilises websockets. There's fairly rapid messaging going on, so I've been taking a look at the network traffic with wireshark, to see if there's any way of reducing the amount of data we are sending over the wire, and hence costs. A typical message has approx 150 byte data payload, and according to wireshark the lower layer stuff takes up about: Ethernet: 14 bytes IP: 20 Bytes TCP: 20 Bytes My question is, are these network headers included in data transfer calculations? What about TCP ACK messages? (another 54 bytes according to wireshark) This may seem petty, but because we have so much messaging going on, and because the payload is a similar size to these headers, it's significant.

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  • Does shutdown idle VMs improve the performance?

    - by Samselvaprabu
    Often our team members are coming to me with a compliant that their VMs are slow. Our team members suggested to shutdown some of the VMs temporarily and try to access the VM. But most cases that would not help. Assume that i have assigned 4 GB for and 2 CPUs for my VM. So ideally it should not face performance issue. As our ESXi 4.1 server has multiple VM in the same server (we have overcommited memory and CPU). Does shut down other VM really helps to improve performance or not? [Note : We are using ESXi 4.1 and our hardware is R710 server. We have more number of VMs in single server so we have overcommited memory.]

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  • Nagios state transition and event handler issue

    - by Dattatray
    We are using Nagios to check duplicate processes. define service { use local-service host_name xxx service_description xxx Duplicate Processes check_interval 1 max_check_attempts 1 contact_groups admins event_handler restart-dependent-processes check_command check_procs_duplicate!2!3!2!2!2 } check_procs_duplicate checks if there are any duplicate processes and returns the state - e.g. CRITICAL. The event handler kills the duplicate processes and it's dependent processes and starts one instance of the process and dependent process. At the end of this again Nagios checks if there are any duplicate processes and sets the state accordingly - OK/WARNING/CRITICAL. The event handler takes more time to start the processes and during this time if someone manually starts the process, the state will remain in CRITICAL itself. During the next interval, Nagios will again check for duplicate processes and it will find it again CRITICAL. The event handler will not get executed now, as the previos and current both the states are CRITICAL. Any pointers about how to fix this issue?

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