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• Synchronize folders on different computers without cloud and without network just internet

  - by theimmortalbg

  I have two computers with windows 7, one in my home town and one in another town. So they are not in private network but I have internet on both. They have exactly the same file structure. I am searching for program that can keep the data equal. I know about dropbox or google drive but they are cloud and I don't want to use them. Also they are using folder that you should copy your data in it. There is another programs that are like a server, just put something and after that you can download it but I dont need them. I want just to point which folders to be synchronized and the program make the synchronization. The sync can be in real time if the two computers are powered, or after few time when they are powered. Or it can lock another computer synced folder till update is required. At all this is my documents that I want to be synced in all my computers and to be changed from where I want. In fact I can move the updates with flash but if some program save the changes and make them on another computer with one click it will facilitate my work.

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• Generalized strategy for file server virtualization in Xenserver

  - by Jamie

  I'm not shopping as much as I'm looking for some guidance on good idea / bad idea strategies. I'm sure I'm not in the "best practices" budget range. Currently, I have 3 dell poweredges running xenserver in a pool. Each node has a ubuntu file server, serving about 6TB. One is the primary, the other two are rsync targets for backup. The 6TB is stored on their respective local storage disks as an LVM of 3x2tb virtual disks. The fileserver VM disks are also stored on the node local disks. Each node also runs a smattering of light-weight VMs for web, development, windows VMs, and stuff like that. Several of those VM's disks reside on a QNAP NAS to play with live migration. These VM's are often clients of the primary file server (like all the mail, web content, user files are stored on the file server, not on the mail, web, and samba VMs). This all works fine, and is a major step up for us. The downside is that the QNAP is a single point of failure. And the only thing the QNAP is doing is serving migratable VM images, not client data. Someday the poweredge local arrays will be full, and we will have to reinvent ourselves again. Is it wise to have heavywieght vms (like the fileserver, with its 6+ TB disks) on a SAN or NAS? Would it be better to keep the VMs lightweight, have the VM images on a SAN or NAS, and use 2 or more NAS act as NFS-serving file appliances? A hybrid SAN/NAS that can serve iscsi for images and NFS for the client vms? It seems like live-magration would be a misnomer if you have to migrate a fileserver with its entire 6+ TB disk. I recognize there are plenty of ways to skin the cat. We've already skinned it a few ways. What makes sense?

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• Vista won't boot. BSOD: Page fault in nonpaged area

  - by user31576

  Here's the story: I let Windows Update do the updates it wanted to do, then rebooted the computer. The updating process was taking time so I went away. When I came back, my computer was rebooting. It got as far as the Windows logo with the laoding bar. BSOD'd. Rebooted. And I'm stuck in this loop ever since. Looked up on the net, the "Page fault in nonpaged area" seems to be linked to faulty RAM or drivers. So I ran a memory test, it found no error. When I try in safe mode (with promt) I can see a list of drivers being loaded, then I get the same BSOD. I tried to repair using the Vista DVD, it says "nothing to repair". I tried to restore to a previous state, it says "no restore point found". So, my guess is, it's got something to do with the drivers. How can I identify the one causing the BSOD? If you have any other leads, What can I do? By the way, I'm writing from this very computer, running a linux distro I installed after the BSOD loop started. So i guess it's not an hardware issue. I have backed up important data, and will format and reinstall Windows if I must. But I'd like to avoid that. Thanks in advance for any help you can give me.

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• How should a small company administer their web server?

  - by John Isaacks

  We currently have our website hosted by a small company that is actually a reseller for Rackspace. They act as our server administrators. They configured the servers, handle the backups, if there is a problem, we call them and they fix it. We are growing and want to move away from our shared server to either a cloud or dedicated server. I am thinking cloud myself but I am open to either. The current company doesn't seem to want to offer us anything more than a shared hosting plan. I looked into cloud solutions at vps.net, with them I would have to be the server administrator myself. I am the website programmer but administering the server is outside my comfort zone. vps.net does have a $99/month plan for Pro-Active Managed Support but I am not sure if this is the equivalent on a server admin that is there when you need them. We could hire someone in house, but I think that would be overkill for our needs. I am not exactly sure what we need, I do know we need as close to 100% uptime as we possible can. and we need the ability to add/remove/change the server configuration/software/etc. when needed (though changes shouldn't be very often once everything is setup right). Can someone point me in the right direction? What do other companies do?

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• Server Clustering (Django, Apache, Nginx, Postgres)

  - by system-matrix

  I have a project deployed with django, Apache, Nginx and Postgres. The project has requirement of live data viewable to customers. The projects main points are: 1. Devices in field send data to server(devices are also like website users) after login. 2. There is background import process which imports the uploaded data in postgres. 3. The webusers of the system use this data and can send commands to the devices, which devices read when they login. 4. There are also background analysis routines running on the data. All the above mentioned setup and system is deployed on one amazon EC2 cloud machine. The project currently supports over 600 devices and 400 users. But as the number of devices are increasing with time the performance of the server is going down. We want to extend this project so that it can support more and more devices. My initial thinking is, We will create one more server like current one and divide the devices amongst these to servers. But Again We need a central user and device managment point though django admin. Any Ideas? What are the best possible ways to create a scalable architecture? How can I create a Postgres Cluster and Use it with Django, if possible?

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• Freebsd jail for an small company - checklist - what shouldn't forget

  - by cajwine

  Looking for an checklist for an "small company freebsd/jail server". Having pretty common starting point: FreeBSD jail (remote/headless) for the company: public web, email, ftp server, and private (maybe in the future partially public) wiki (foswiki) 4 physical persons, (6 email addresses) + one admin - others will never use ssh) have already done usual hardening on the host side (like pf, sshguard etc). my major components are: dovecot, exim, apache22, proftpd, perl5.14. Looking for an checklist, what I shouldn't forget. My plan: openssl self-signed certificates for exim, dovecot and proftpd (wildcard keys) openssl self-signed certificate for apache (later will go for "trusted-signed" key) My questions are: is is an "good practice" having one pair of wildcard SSL-certificates for many programs? (exim, dovecot, proftpd) - or should I generate one key for each service? should I add all 4 persons as standard (unix) users, or I should go with virtual users? Asking because: have only small count of users, and it is more simple to configure everything (exim, dovecot) for local users ($HOME/Maildir), plus ability to set $HOME/.forward/vacation and etc. is here some (special) things what I should consider? (e.g. maybe, in the future we want setup our own webmail - will make this any difference?) any other recommendation? Thank you, hoping that this question fit into the http://serverfault.com/faq under the: Server and Business Workstation operating systems, hardware, software Operations, maintenance, and monitoring Looking for an checklist, but please explain why you're recommending it. See Good Subjective, Bad Subjective. related: What's your suggested mail server configuration for a FreeBSD server?

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• What are problems and pitfalls with a public facing Active Directory

  - by Ralph Shillington

  The situation that i'm faced with is this: We plan on using a number of server applications hosted on Amazon EC2 machines, mainly Microsoft Team Foundation Server. These services rely heavily on Active Directory. Since our servers are in the Amazon cloud it should go without saying (but I will) that all our users are remote. It seems that we can't setup VPN on our EC2 instance -- so the users will have to join the domain, directly over the internet then they'll be able to authenticate and once authenticated, use that token for accessing resources such as TFS. on the DC instance, I can shut down all ports, except those needed for joining/authenicating to the domain. I can also filter the IP on that machine to just those address that we are expecting our users to be at (it's a small group) On the web based application servers, I imagine all we need to open is port 80 (or 8080 in the case of TFS) One of the problems that I'm faced with is what domain name to use for this Active directory. Should I go with "ourDomainName.com" or "OurDomainName.local" If I choose the latter, does that not mean that I'll have to get all our users to change their DNS address to point to our server, so it can resolve the domain name (I guess I could also distribute a host file) Perhaps there is another alternative that I'm completely missing.

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• In a Shell scripts, check version of installed package, make a decision based on output

  - by DJDarkViper

  Looking to write a cross distro / cross version shell script that makes sure a forced version of PHP is installed Example: Ubuntu 12.04 has 5.3, Ubuntu 13.10 has 5.5, Debian 7 has 5.4 I need this script, when run on a distro that has an old version of PHP, to update the repo to point to a package for 5.4, and if the distro has too new of a version, can downgrade to 5.4 appropriately. Im still not entirely comprehensive of Shell/Terminals technical limit of what you can do with it, but ill be perfectly frank that im still not totally used to existing tools The best I can think at the moment is: php -v | grep "PHP 5" but that returns a bunch of potentially changeable granular characters (PHP 5.4.4-14+deb7u5 (cli) (built: Oct 3 2013 09:24:58) ). Im not sure what to pipe to after this to extract out the characters im interested in Im not sure if im being totally clear, im not sure how to ask this.. Basically, in an automated shell script for Linux distros, how do I extract the PHP version (and just the PHP version number preferably) and make a decision based on that output EDIT This line ended up doing pretty dang good php -v | grep "PHP 5" | sed 's/.*PHP \([^-]*\).*/\1/' | cut -c 1-3 Bit long in the tooth, but gives me "5.3", "5.4", and "5.5" which is exactly what I need to work with

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• Cannot delete a SharePoint web application

  - by Vijay

  What I have? I have normal web application and it has 3 site collections with name, "PDirectory". Other than this I have only Central administration web application in the farm. What I want? I want to delete that web application, "PDirectory". What problem am I facing? I am not able to delete the web application. I get below error when I try to delete it but, the site collections got deleted! Error: An object in the SharePoint administrative framework, "SPWebApplication Name=XXX Parent=SPWebService", could not be deleted because other objects depend on it. Update all of these dependants to point to null or different objects and retry this operation. The dependant objects are as follows: SPFarm Name=SharePoint_Config SPFarm Name=SharePoint_Config at Microsoft.SharePoint.Administration.SPConfigurationDatabase.DeleteObject(Guid id) at Microsoft.SharePoint.Administration.SPConfigurationDatabase.DeleteObject(SPPersistedObject obj) at Microsoft.SharePoint.Administration.SPPersistedObject.Delete() at Microsoft.SharePoint.Administration.SPWebApplication.Delete() at Microsoft.SharePoint.ApplicationPages.DeleteWebApplicationPage.BtnSubmit_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) Can somebody tell me how I can delete this web application? Thanks in advance!

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• System State Backup Retention Policies

  - by isoscelestriangle

  I was wondering if there was a general consensus on how long to keep system state backups. I am trying to reevaluate our current backup process, and trying to get a good handle on our current storage requirements. Our current setup involves tapes and sending backups offsite with Barracuda Networks. We have been doing our system state backups with Barracuda now, which does full backups daily, leaving our storage requirements growing quite quickly. My boss is a little too gung-ho with backups and wants our system states saved for quite a while. We currently have 5 days of nightlies, 5 weeklies, 3 monthlies, and so on. I think this is quite overkill for system state backups. My boss wants the ability to go back in time to find when an issue appeared, but I don't think that is practical. Many things change in the course of several months. I also think it would be hard not to notice problems with our DCs and other servers for several months. I would think that a previous week's snapshot and the current week's dailies would suffice. Any advice or reading you can point me to? Thanks!

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• Samsung S23A750D 23" 120Hz get no signal

  - by John Carter

  I have a few days ago received this monitor. Samsung S23A750D 23" 120Hz I am using it with a Gainward Nvidia GTX570 Phantom GPU via DisplayPort cabling. The trouble I am having is that the monitor has great trouble picking up a signal from the GPU when the computer has gone into sleep mode or been switched off (at this point I can get a signal to the monitor). It's only when I turn the computer back on and then the monitor that I get no signal. To get a signal I have to remove the power cable and put back in or sometimes remove the DP cable and put back in. I have tried not turning the monitor off (the monitor goes into a sleep mode when the computer goes into sleep mode) but on putting the computer on it does not pick up a signal. It is only by removing the power cable and/or DisplayPort cable will I get a signal. And this is intermittent. I have tried upgrading the firmware from Samsung but this hasn't helped. Any ideas?

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• Apache can't get viewed from outside of my LAN

  - by Javier Martinez

  I fixed it in PORTS TRIGGER menu of my router. Thanks you anyway I have a weird problem related with (i think) my cable-router and my configured vhosts in Apache2. The point is I can't access from outside of my LAN to any of my configured vhosts if I set the http port of Apache to 80 and i add a NAT rule for it. Otherwise, if I set my Apache port to 81 (or any else) with its respective NAT rule on my router it works. My router is an ARRIS TG952S and I am using Apache/2.2.22 (Debian) ports.conf NameVirtualHost *:80 Listen 80 vhost1.mydomain.net.conf <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName vhost1.mydomain.net ServerAlias vhost1.mydomain.net www.vhost1.mydomain.net vhost2.mydomain.net.conf <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName vhost2.mydomain.net ServerAlias vhost2.mydomain.net www.vhost2.mydomain.net DNS records (using FreeDNS) are: mydomain.net --> pointing to another server vhost1.mydomain.net --> pointing to my server vhost2.mydomain.net --> pointing to my server iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination fail2ban-apache-noscript tcp -- 0.0.0.0/0 0.0.0.0/0 multiport dports 80,443 fail2ban-apache tcp -- 0.0.0.0/0 0.0.0.0/0 multiport dports 80,443 fail2ban-ssh tcp -- 0.0.0.0/0 0.0.0.0/0 multiport dports 22 Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain fail2ban-apache (1 references) target prot opt source destination RETURN all -- 0.0.0.0/0 0.0.0.0/0 Chain fail2ban-apache-noscript (1 references) target prot opt source destination RETURN all -- 0.0.0.0/0 0.0.0.0/0 Chain fail2ban-ssh (1 references) target prot opt source destination RETURN all -- 0.0.0.0/0 0.0.0.0/0 Thanks you

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• How can I move linked Word/Excel files without breaking the links under Windows 7?

  - by DOUG NEEDHAM

  I currently operate under Windows XP and have multiple links between my Word and Excel files. I have to upgrade to Windows 7. When the .doc and .xls files are converted to .docm and .xlsm, respectively, the links no longer work. The Word document is still attempting to point back to the old .xls file rather than the new file. Also, creating new links between Word and Excel within Office 2010 doesn't seem to work. I create the new link, switch it from "Auto" to "Manual" and everything works fine. But when I copy the files to another folder, the Word document is still trying to link to the file in the previous folder rather than the new folder. This always worked in Windows XP. I've been using linked Word/Excel documents for 10+ years and have never really had a problem. I'm very careful to maintain Word and Excel filenames when moving the files to a new folder. The process has always been to 1.) move the files, 2.) update the links, 3.) rename the files, and 4.) update the links again. It's my understanding that under Windows XP, links between Word and Excel are relative. But under Windows 7 (and Office 2010?), those same links become fixed.

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• Queries passed to SQL Server are getting corrupted

  - by adrianbanks

  We are experiencing a bizarre error with our application at a customer site. We have managed to narrow it down to the point where we can replicate the behaviour using just Management Studio and SQL Server. We have two machines, A and B: +------------+ +--------------------+ | [A] | | [B] | | Management | -------------- | SQL Server 2008 R2 | | Studio | | Enterprise x64 | +------------+ +--------------------+ We are running a SQL script in Management Studio on machine A against the SQL Server instance on machine B. We are not actually executing the script, just parsing it. Most of the time, the parse operation works fine. Occasionally (seemingly randomly), the parse operation fails with a syntax error. The error message shows the part of the script with the error, which appears as some SQL from the original script that has been truncated and has random characters appended to it. An example: The original SQL: SELECT DISTINCT ST.TABLE_NAME as TableName FROM INFORMATION_SCHEMA.TABLES AS ST INNER JOIN INFORMATION_SCHEMA.COLUMNS AS SC ON SC.TABLE_NAME = ST.TABLE_NAME WHERE ST.TABLE_TYPE = 'BASE TABLE' AND SC.COLUMN_NAME = 'Identity' AND ST.TABLE_NAME != 'dtproperties' ORDER BY ST.TABLE_NAME The SQL that is in error (as reported by SQL Server): SELECT DISTINCT ST.TABLE_NAME as TableName FROM INFORMATION_SCHEMA.TABLES AS ST INNER JOIN INFORMATION_SCHEMA.COLUMNS AS SC ON SC.TABLE_NAME = Sa? The above example shows how the query is being corrupted. It doesn't always happen, and is not always the same bit of SQL that causes the error. Parsing this script against another SQL Server instance produces no errors, showing that the script is fine. It appears that something is corrupting the SQL that is being received the the server. This leads me to think that the problem lies either with the client end or in the transmission of the SQL from the client to the server. I have a SQL trace from the period where an error occurs, which shows the SQL has been corrupted when SQL Server receives it. We have been unable to track down any possible cause of this behaviour, and so cannot find a fix. Because the errors occur seemingly randomly, it is also very hard to generate reproduction steps to submit a bug report. Any ideas?

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• Windows 7 Install: No drives were found

  - by Albert Bori

  I was building a computer for my wife with an older SATA hard drive that I had lying around, and when attempting to do a new install of Windows 7 on it, the installer says: "No drives were found. Click Load Driver to provide a mass storage driver for installation." I ran the diskpart command: list volume, and it showed up as "Raw". So, I formatted it to NTFS and then it showed up as a healthy drive in diskpart. I also ran check disk on it with no errors. Windows 7 installer STILL can't find the drive. As far as BIOS settings, I have tried "Native IDE", AHCI, and Both AHCI/IDE mode (SATA slots 0-2 AHCI, 3-4 IDE). I tried all combinations... still "no drives were found". At this point, I'm just scratching my head. Using the installation dos window, I can see and talk to the drive just fine, but the installer just doesn't see it at all. I've even written folders and files to the drive, and it still "can't be seen". Any help would be great. Items of interest: Motherboard model: Gigabyte GA-A75M-UD2H - BIOS Version F5 (latest) Hard drive model: 80GB Seagate Barracuda 7200.7 ST380817AS (no other drives) Installing Windows 7 using a FAT32 formatted USB Drive, which I've used for other installs

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• iSCSI performance questions

  - by RyanLambert

  Hi everyone, apologies for the long-winded post in advance... Attempting to troubleshoot some iSCSI sluggishness on a brand new vSphere deployment (still in test). Layout is as such: 3 VSphere hosts, each with 2x 10GB NICs plugged into a pair of Nexus 5020s with a 10gig back-to-back between them. NICs are port-channeled in an active/active redundant fashion (using vPC-mac pinning for those of you familiar with N1KV) Both NICs carry service console, vmotion, iSCSI, and guest traffic. iSCSI is on a single subnet/single VLAN that is not routed through our IP network (strictly layer2) Had this been a 1gig deployment, we probably would have split the iSCSI traffic off onto separate NICs, but the price/port gets rather ridiculous when you start throwing 4+ NICs to a server in a 10gigabit infrastructure, and I'm not really convinced it's necessary. Open to dialogue/tech facts re: this, though. At this point even a single VM guest will boot slowly to iSCSI storage (EMC CX4 on the same Nexus 5020 10gig switches), and restores of VMs from iSCSI take about twice as long as we'd expect them to. Our server folks mentioned that if we split the iSCSI off onto its own NIC, performance seems significantly better. From a network perspective, I've run through the variables I can think of (port configuration errors, MTU problems, congestion etc.) and I'm coming up dry. There really is no other traffic on these hosts other than the very specific test being performed at the time. Important thing to note is that guest traffic works just fine... it seems storage is the only thing affected by whatever gremlin exists. Concluding that we're not 'overutilizing' the network infrastructure since we're doing hardly anything, I'm just looking for some helpful tips/ideas we can use to resolve this... preferably without hurling extra 10gig NICs that are going to sit around 10% utilization while we've got 70+% left on our others.

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• SharePoint extranet security concerns, am I right to be worried?

  - by LukeR

  We are currently running MOSS 2007 internally, and have been doing so for about 12 months with no major issues. There has now been a request from management to provide access from the internet for small groups (initially) which are comprised of members from other Community Organisations like ours. Committees and the like. My first reaction was not joy when presented with this request, however I'd like to make sure the apprehension is warranted. I have read a few docs on TechNet about security hardening with regard to SharePoint, but I'm interested to know what others have done. I've spoken with another organisation who has already implemented something similar, and they have essentially port-forwarded from the internet to their internal production MOSS server. I don't really like the sound of this. Is it adviseable/necessary to run a DMZ type configuration, with a separate web front-end on a contained network segment? Does that even offer me any greater security than their setup? Some of the configurations from a TechNet doc aren't really feasible, given our current network budget. I've already made my concerns known to management, but it appears it will go ahead in some form or another. I'm tempted to run a completely isolated, seperate install just for these types of users. Should I even be concerned about it? Any thoughts, comments would be most welcomed at this point.

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• What are the "least legally restrictive" well-connected countries to host a website?

  - by monster

  NB: I am aware that this question is subjective, as it can't be defined precisely, but the answers should still be "objective": Country name, and what makes it legally safer. EDIT: A) I am located in Germany. B) I am NOT looking for a place to offer pirated Software/Media; no binary on my site, except "profile icon". Hello! I want to start publishing "social" websites / apps, and I found that the biggest initial problem is this: Any and all services I have to depend on, including Domain Registrar, DNS provider, Server/Cloud Provider, CDN Provider, ... even my Insurance Agent, basically say that they can "throw me out" if my website contains "unacceptable" content. It's always phrased in such a way that basically anything can fall under "unacceptable" content. This is very frustrating because you just can't fully control what users post on your "social website", and you so you basically have to expect when you go to bed that your site is going to be gone when you wake up. I've heard a lot of horror stories about this. Since the "Terms Of Service" of all those providers are foremost to protect themselves from legal actions, and those legal actions depend on the country where they are located, it seems like the first step is to find which country is the "safest" to locate a site. "Safest" being defined as, where I am least likely to get in legal trouble with the local authorities, if some user posts something unacceptable in some way. The main restriction is that it should also be a "well-connected" country, because there is no point in being "safe", if my users can't get to my sites, or the latency is unacceptable. I am targeting the English speaking people in any country as my future users.

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• How can I configure myhostname to work with Postfix?

  - by John Kelly Ferguson

  I'm going through the process of setting up a Discourse forum on my server (Ubuntu 12.04 x64) and am getting stuck at the point where I have to configure mailers. I'm following Discourse's instructions and am stuck trying to configure postfix for Mandrill. It is says to check my fully-qualified domain name by typing hostname -f When I enter in hostname -f, I get localhost. As far as I know, entering in hostname -f should return mydomainname.com. When I just enter in hostname, I get mydomainname which is correct because that is what I set my hostname to in /etc/hostname. Looking at some of my other settings, my /etc/hosts file reads: 127.0.0.1 localhost mydomainname # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters And in my /etc/postfix/main.cf file, I have myhostname set like this: myhostname = mydomainname.mydomainname.com (Should this be myhostname = mail.mydomainname.com instead?) And mydestination is the following: mydestination = mydomainname.com, localhost, localhost.localdomain, localhost I'm not that familiar with configuring hostnames. I've been reading Postfix's instructions, but haven't been able to figure it out yet. Any help on how to get this to work would be greatly appreciated. Thanks.

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• Explorer.exe hangup during move large file into external drive

  - by PiotrK

  During move large files (700mb+) to external drive formated NTFS via USB 3.0 I've noticed strange things about explorer.exe (I am using Windows 7 up to date) Sometimes after move file the explorer get stuck (ie. it can happen after few files during move of several large files) - moving window freeze and I am unable to kill explorer (via taskmgr, or cmdline TASKKILL). In command line I've got something like this (taskmgr shows that explorer.exe is still running - I've got the same PID every time I try to kill it and no diagnostic message): C:\Windows\system32TASKKILL /F /IM explorer.exe SUKCES: proces "explorer.exe" o identyfikatorze PID 6296 zostal zakonczony. C:\Windows\system32TASKKILL /F /IM explorer.exe SUKCES: proces "explorer.exe" o identyfikatorze PID 6296 zostal zakonczony. If I try to run another explorer.exe process at this point, I got desktop icon and start bar back but I cannot open any explorer window After few minutes explorer.exe finally dies and I am able to rerun it without rebooting File that I moved have two copies - one local and one on the external drive (the original file wasn't delete after move); Both copies seems to contain the same data (same length and CRC info) If this happen during move of multiply files, only some files are moved and one of them have two copies (both locally and on the external drive) What can I do to fix those explorer hangs? Added: The same problem exist when copying files, it hangsup between large files Similar problem exist when I tried to use TotalCommander (x64): copying paused at 80% of one of files, TC didn't hung up (but clicking cancel in copying dialog box doesn't have any effect). During this pause I can't kill TotalCmd.exe just like Explorer.exe Added (2): This problem seems to disappear when I use 32 bit applications (like TotalCommander (x86) ), but I need to do more testing to be sure of this Added (3): There are several errors in event log, source: disk, id: 11, qualifiers: 49156, task: 0, level: 2, keywords: 0x80000000000000 (This may be important, and I forgot to mention this): Main disk is encrypted via Truecrypt (boot-in password)

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• How to go about rotating logs which are arbitrary named and placed in deeply nested directories?

  - by Roman Grazhdan

  I have a couple of hosts which are basically a playground for developers. On these hosts, each of them has a directory under /tmp where he is free to do all he wants - store files, write logs etc. Of course, the logs are to be rotated, or else the disc will be 100% full in a week. The files can be plenty, but I've dealt with it with paths like /tmp/[a-e]*/* and so on and lived happily for a while, but as they try new cool stuff on the machine logrotate rules grow ugly and unmanageable, and it's getting more difficult to understand which files hit the glob. Also, logrotate would segfault if asked to rotate a socket. I don't feel like trying to enforce some naming policies in that environment, I think it's going to take quite a lot of time and get people annoyed and still would fail at some point. And I still need to manage the logs, not just rm the dirs at night. So is it a good idea in circumstances like these to write a script which would handle these temporary files? I prefer sticking with standard utilities whenever possible, but here I think logrotate is getting less and less manageable. And probably someone heard of some logrotate alternatives which would work well in such an environment? I don't need emailing logs or some other advanced features, so theoretically some well commented find | xargs would do. P.S. I do have a log aggregator but this stuff is not going to touch my little cute logstash machine.

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• Developing high-performance and scalable zend framework website [on hold]

  - by Daniel

  We are going to develop an ads website like http://www.gumtree.com/ (it will not be like this one but just to give you an ideea) and we are having some issues regarding performance and scalability. We are planning on using Zend Framework for this project but this is all that I'm sure off at this point. I don't think a classic approch like Zend Framework (PHP) + MySQL + Memcache + jQuery (and I would throw Doctrine 2 in there to) will fix result in a high-performance application. I was thinking on making this a RESTful application (with Zend Framework) + NGINX (or maybe MongoDB) + Memcache (or eAccelerator -- I understand this will create problems with scalability on multiple servers) + jQuery or maybe throw Backbone.js in there, a CDN for static content, a server for images and a scalable server for the requests and the rest. My questions are: - What do you think about my approch? - What solutions would you recommand for developing an high performance, scalable application expected to have a lot of traffic using PHP(Zend Framework 2)...I would be interested in your approch. I should note that I'm a Zend developer, I'm working with Zend for over 3 years, this is why I'm choosing it.

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• VNC Address Book - Window Invisible? Working as intended?

  - by user1445967

  I have VNC Server and VNC Viewer on the same PC with Windows 7 Ultimate x64. Is VNC Address Book supposed to have a main application window? I can't tell if this is bugged or working as intended. When I start VNC Address book, it creates an item in the task list and also an icon in the notification area. If I click the task list item once, nothing happens. If I click again, it disappears from the task list but remains in the notification area**. If I right-click the icon on the notification area, there is an option 'open address book', which if chosen, creates the item in the task list again, with the exact same behavior. If I left or right click on the address book icon, I have ways to connect to servers in the address book. However I have no way to add/remove/edit servers in the address book. **Note that this behavior is identical to that of an application with a main window where there is an option to 'minimize to system tray / notification area'. Only here, no main window is visible, ever. If fixing this problem is beyond the scope of this site, that's fine, but at this point I have no real way to tell if the program is malfunctioning on my pc or if it is far more minimalist than I expected. There appears to be no forum on realvnc.com where I can ask about this, perhaps this is to prevent me from getting any help unless I pay to register?

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• How do I restore to a delta file (disk) on Vmware ESXi

  - by Oscar

  Using VMware Server ESXi (freebie version) I have a Virtual Machine (win 2k3 r2 server). When I first provisioned it I took a snapshot of it. I recently tried to clone the primary drive using my standard hardware-based method to grow a windows disk. (using knoppix, clone drive to a new drive, make it bootable, then I intended to extend the partition via diskpart from within windows). This process failed; I tried setting the cloned drive (via the vmware gui) to replace the original drive, boot and be done. This didn't work out so well. The machine never booted. I checked the boot order, the disk location and all the basics I usually do. As a failsafe, I then tried changing all the settings back so the machine would boot to the original drive and I could figure out (as I eventually did) a better way of growing the disk. However when I powered on the machine with the original drive, it reverted back to that initial snapshot I created; It lost all the changes since. I looked in the file system and found a few files, I think the keyfile here is one named "delta" and I'm assuming that's the disk I want, but I can't find a way to have the Virtual Machine actually use that drive/file. It isn't available to add when I go to add an existing drive. Do I need to somehow commit that delta to the original drive and then boot from it again? Can you point me in the right direction? I've since discovered the proper way of growing drives using "vmkfstools" but I need to get back to the original state of the machine to try this out. Any help would be greatly appreciated.

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• Did my registrar screw up or is this how name server propagation works?

  - by Brad

  So my company has a number of domains with a large registrar that shall go unnamed. We are making some changes to our DNS infrastructure and the first of those is we are moving our secondary DNS from one server on site to four servers offsite. So we updated the name servers for each domain at the registrar by removing the entry for the old secondary name server and adding the four new ones. I monitored the old secondary server for requests and when I saw no new requests had been made for 24 hours I shut it down. That was this morning. I assumed at this point everything was good. Unfortunately this was my mistake. I should have gone and made sure name servers at large were returning the correct NS records. So this afternoon we were performing maintenance on our primary DNS server and we shut it down. This is when I started getting alerts from our external monitoring. I checked and sure enough, the DNS server used there reported the only NS record for our primary domain was the primary name server. The new secondary servers were not listed and neither was the old secondary. Is it unreasonable of me to have assumed that because the update was from ns1.mydomain.com ns2.mydomain.com to ns1.mydomain.com ns1.backupdns.com ns2.backupdns.com ns3.backupdns.com ns4.backupdns.com in one step at the registrar that there should be no intermediate state where the only NS record was for ns1.mydomain.com? Going forward to be safe obviously I will always leave the old name servers alone until after I'm 100% sure the new ones have propagated and only then remove the old name servers from the registrar. However, I'd still like to know if my registrar screwed up or if my expectation was unreasonable.

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