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• No password mysql under linux?

  - by ripper234

  I was told that mysql user, similar to root user, by default "has no password". Not an empty password, but rather "no password". I wasn't aware this situation was possible - I thought every user on a linux had to have a password. Am I wrong? Can you point me to a link that explain this?

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• nginx url rewriting: difference between break and last

  - by Peter

  I don't understand the difference between break and last (flags of rewrite). The documentation is rather abstruse. I've tried to switch between the two in some of my configs, but I couldn't spot any difference in behavior. Can someone please explain these flags in more detail? Preferably with an example that shows different behavior when flipping one flag to another.

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• 6TO4 Windows 2003 DNS

  - by OptimAdam

  This is puzzling me a bit. We are running server 2003 DNS/DHCP and normally we disable IPV6 on the client end. But I have just noticed with windows 7 and server 2008 R2 if I disable IPv6 then it registers an 6TO4 address in DNS not its Standard IP address. If I enable IPv6 it registers its ip. Can anyone explain why this is? Regards Adam

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• No mysql password under linux?

  - by ripper234

  I was told that mysql user, similar to root user, by default "has no password". Not an empty password, but rather "no password". I wasn't aware this situation was possible - I thought every user on a linux had to have a password. Am I wrong? Can you point me to a link that explain this?

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• Whats the difference between "bare-metal" hypervisor and full virtualization ?

  - by Hrishikesh Choudhari

  I am presenting to my class on virtualization. While researching, I am confused between a bare metal hypervisor an full virtualization mode with binary translation. Could someone please explain that ?

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• Snort/Barnyard2-1.10 LOG_SYSLOG_FULL Output Logging

  - by Ron

  With log_syslog_full opertion mode set to complete you get the below output. Can some explain to me what the bold parts are? I have been searching and cannot find any documention explaining the new file output format. Thanks | [SNORTIDS[LOG]: [IDS1] ] || 2012-11-28 20:31:31.747+-06 1 [1:2803567:3] ETPRO POLICY Suspicious User-Agent (LuaSocket) || trojan-activity || 6 69.2.42.86 64.129.104.173 5 0 0 146 38060 0 0 3635 0 || 41848 80 4082109343 3023118530 8 0 24 32768 39439 0 || 160 00000C07AC050023EBABC57A08004500009294AC0000FF060E3345022A56408168ADA3780050F3500B9FB43120C2801880009A0F00000101080A3198E2CD00000000686F73743A20757064617465732E69726F6E706F72742E636F6D0D0A757365722D6167656E743A204C7561536F636B657420322E300D0A74653A20747261696C6572730D0A636F6E6E656374696F6E3A20636C6F73652C2054450D0A0D0A ||

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• How to get higher download rate than upload rate

  - by user23950

  i'm using bandwidthplace.com to measure my internet speed. And here it is: Download Speed: 422 kbps (52.8 KB/sec transfer rate) Upload Speed: 202 kbps (25.3 KB/sec transfer rate) Can you please explain to me how did they get the 52.8 transfer rate. And how do I get to lower the upload speed in order for me to get higher download speed.

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• What is the difference between VPS and cloud hosting?

  - by jpartogi

  Hi all, I have tried reading several resources on the internet about cloud computing and VPS but can not see the difference of it. Can anyone explain what is the difference between cloud computing and VPS? IT seems they are both the same as you need to use a virtual machine.

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• How do I change the default for the "df" command in the Unix terminal from KILOBYTES TO MEGABYTES?

  - by user1656014

  I can't really show the code in Unix, but I can explain it very clearly. In the terminal, when you type "df", you get information on the disk free space all in KILOBYTE units. KILOBYTES is currently set as the default in Unix. My problem is trying to change the default from KILOBYTES to MEGABYTES. After changing of the default, I should be able to type in "df" and all the disk free space should come up in MEGABYTES.

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• mv ,,, to * ???

  - by thedp

  I tried something on my vm ubuntu and managed to mess it up... luckily I made a snapshot not too long a go. I renamed a file to ,,, and tried to mv ,,, *. The entire dir's content of the dir disappeared. Can someone please explain to me what happened? Thank you.

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• Querying Domain Controller objects using Powershell

  - by Neobyte

  Could someone explain to me why this does not work? Import-Module ActiveDirectory $dcs = Get-ADComputer -Filter {DistinguishedName -Like "*Domain Controllers*"} I get no results for this query. Alternatively, could someone suggest a way using the module above that I can generate a list of systems on my domain that are NOT Domain Controllers (which is what I'm eventually trying to achieve). Cheers

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• internet service providers

  - by gautam kumar

  I am unclear about the differences between international, national, regional and local ISPs. Please explain the differences and their importance, with examples. I am new to this site, so please forgive me if my question is not up to your expectations.

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• How to make Google Search look dumb?

  - by nasekt

  I know its a silly question,but i want the search results to be intentionally inaccurate. Sorry, i am not fluent in english,so i will explain using the images below with Breaking Bad tv series as an example : Pic[1]: http://i.imgur.com/QN741LV.jpg Pic[2]: http://i.imgur.com/QcaoV8c.jpg Using (-) sign i can exclude unwanted results,but dont want the other users become aware of it Any script and software that can help me achieve this? Thank you for your help in advance.

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• Why VM snapshots are affecting performance?

  - by Samselvaprabu

  I read in one of the VMware KB article says that snapshots will directly proportional to VM performance. But my team keep asking me how snapshots can affect performance. I would like to give them solid reason behind the statement that snapshots are performance killers. Can any one explain a little bit theory behind why actually snapshots are affecting the performance? Is it just because Disk I/O rate of hard disk would be slow?

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• www-data ownership makes the wordpress instalation consume more memory

  - by Arkid

  I have a wordpress installation. When the ownership of the folder is root, the memory consumed is okay. However, when I change the ownership to www-data user, it starts consuming a lot of memory and starts throwing a lot of out of memory error. I have changed the ownership to root. However, Can anyone explain why this happens?

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• regarding port forwarding

  - by girinie

  Hi I have designed a chat application using servlets and jsp. I do not like it to host on any web hosting sites. I wanna make my computer only as server and wanna make it accessible to the users of different network. Can anybody explain me how can this be achieved. I will be really thankful. I was said that use port forwarding how can this be solved using port forwarding?

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• What is effect of CTRL + Z on a unix\Linux application

  - by Kumar Alok

  I was curious and confused that what exactly is the behaviour of CTRl+Z. I know, If a process in running in foreground, and we press ctrl+z, it goes to background. But what exactly happens. Does it keep doing it's job, or does it get suspended, and stopped at the point where it was. Can someone please explain. And if it gets stopped at that point, and what is the meaning of background job. Regards Kumar Alok

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• commands executing in piping in UNIX

  - by Happy Mittal

  when I write a command $ echo date then it prints "date" as it is i.e it doesn't run date program. But when I write $ echo date | wc then correct answer is produced as if date was run. How piping is making difference here ? Please explain.

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• Map 127.0.0.1:81 to external ip ?

  - by Tom

  Hi Guys, I am wondering how I can map my development website - hosted via 127.0.0.1:81 - to an external IP address so it can be accessed from outside my PC ? I have a static IP address - [example] 11.111.111.11 - and want to be able to show the website to clients via allowing them to view the site ? Would anyone be able to explain this for Win7 ?

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• Why are there many processes listed under the same title in htop?

  - by javanix

  Can anyone explain to me why there are sometimes 10 or 15 processes with the same title and "stats" listed in htop? I'm guessing there are multiple threads running - but that many of them obviously couldn't be running concurrently. Is there any sort of performance hit taken if a process uses say, 15 non-concurrent threads vs. 10 non-concurrent threads?

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• What does sign a distribution point mean?

  - by Lars

  I am looking at some guides on Microsoft Configuration Manager Console, and see that you need to sign a distribution point on packages etc. Can someone explain this a bit further?

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• Windows Server 2003: smtp and ftp services keep shutting down after a while

  - by brian

  If I go into the IIS manager and start ftp and smtp, after about an hour or so they will have been shutdown. There is nothing in the event viewer to explain why they would shut down. IIS webserver continues to run with no problem. I don't see any options in their configuration that would cause this. Any tips on how to troubleshoot this?

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• how to configure tomcat6 for ubuntu

  - by bipul

  i have installed apache tomcat6 for ubuntu 9.04 recenty.But it seems that some API's like servelet and http are not included althogh i have installed openJDK 1.6. somebody advised me to set JAVA_HOME path variable. BUT i am not able to do that and from where to do that. please explain the procedure.

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• how to configure tomcat6 for ubuntu

  - by Bipul

  i have installed apache tomcat6 for ubuntu 9.04 recenty.But it seems that some API's like servelet and http are not included althogh i have installed openJDK 1.6. somebody advised me to set JAVA_HOME path variable. BUT i am not able to do that and from where to do that. please explain the procedure.

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• how to install wayback 1.4.2 on ubuntu

  - by zahir hussain

  hi i am new to ubuntu, so i dont know how to install wayback... i downloaded wayback-1.4.2.tar.gz from some website... next what will i do... anyone explain.. thanks and advance

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