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Articles indexed Wednesday February 16 2011

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  • Apple Software Update Server for Windows

    - by Matthew Iselin
    We have just added a few iMacs to our system and we've found that they all want to download about 1.6 GB of updates... not so great when we only have limited monthly bandwidth! All of our Windows machines just use WSUS, which works great in our environment. It'd be nice if we could do the same for the iMacs without purchasing an additional Mac for a server role. So is it possible to run Apple's Software Update Server on a Windows server? Or do we need to look at purchasing a Mac in order to distribute updates across our clients? Alternatively, could we set up one of the iMacs to run the update server for the other iMacs whilst it is being used as a standard machine (ie, not installing OSX server, and keeping it available for staff to use)?

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  • Filtering attachment types in Google Apps (free Google Business)

    - by Ernest
    We have Google apps in our company for mail delivery, our business can't pay the business version yet, however, we need to control the attachment types that employees download. We recently switched from another hosting provider who recomended us to plug Google Apps for mail when we moved the domain, we had a firewall before which was able to prevent certain file types to be downloaded. I know the business version has section for filtering mail (postini services). Is there a hack around my problem? Anyone ever had this problem? Thank you! UPDATE: The main problem is gmail apps uses ssl connection, can this be changed ? how can i get the firewall to filter files only allowing *.doc, *.xls y *.pdf.

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  • vSphere Promiscuous mode only receiving packets one way from network switch

    - by steve.lippert
    We have two network switches, a POE switch (SwitchA) to power our phones / users computers and a non-POE switch (SwitchB for the rest network.) Each switch is setup to do port mirroring to support our VoIP recording system. SwitchA does port mirroring on specific ports if we need to record a user. SwitchB mirrors one port to monitor our work at home users (Internet comes in from managed router, to switch, back out to our firewall.) These two port mirroring setups feed into one vmware vSphere 4.1 server, it has four total physical cards. The other two NICs feed into an unmanaged switch for connecting to the rest of the network. Once into the vSphere server all network ports go into a vSwitch, and then one of the servers (Windows 2008 R2) sniffs them out and does its thing. Everything is working fine and dandy from SwitchB. But on SwitchA we only receive one side of the VoIP packets (going out to the phone, nothing coming in from the phone). Troubleshooting steps I have taken so far: I hooked up my laptop to the monitor port on SwitchB and I see both sides of the packets. I swapped which network interface is plugged into the monitor port on SwitchA. Because everything feeds into one vSwitch / vNetwork and both sides of the conversation arrive just fine from SwitchB I believe everything is configured correctly on the vSphere server/guest. What could be causing one way packets to arrive on my guest machine from only one interface, but not the other? Could a bad cable be causing the problems from SwitchB?

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  • Can single ESXi host make use of two separete iSCSI box?

    - by user71061
    Hi! I have problem with using multiply iSCSI targets with single ESXi host (in my case they are two FreeNAS hosts, but I suspect that this problem will occur with any two iSCSI box of that same type/model). If I configure two FreeNAS hosts as iSCSI targets (say iSCSI A and iSCSI B), then I can use both of them with my ESXi host, but only one at a time (i.e only iSCSI A or only iSCSI B, but not both of them simultaneously). If I try to add second iSCSI target to my iSCSI adapter (of course it has unique iqn name), then in a details pane of this adapter (it is iSCSI software adapter), I see that total number of paths has increased accordingly, but not total number of devices (so I can't use it as another storage). What should I do? It is impossible to attach two iSCSI targets to single adapter? I'm using free version of ESXi 4.1. Maybe it is an limitation of free version? Thanks in advance for any sugestion.

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  • What is AddType application/x-httpd-php-source

    - by egor
    I have the apache2.0, PHP5.2.4 and the directive in the httpd.conf: AddType application/x-httpd-php-source .php .php3 .php4 .php5 .php6 AddType directive is used to maps the given filename extensions onto the specified content type. This is the only meaning of this directive. But why does this method switch off PHP handler, that assigned .php extensions, and I can view source code of scripts in my browser? And another: AddType application/x-httpd-php5 .php Why does this method switch on PHP handler? This simply must send header "Content-Type: application/x-httpd-php5" to my browser and this must be only meaning of directive AddType from mod_mime. I'm confused. Thanks for your replies.

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  • Processing-time billing in Amazon EC2

    - by Rafael Almeida
    Hi all! I think my question is fairly basic, but I would like a clarification: in the Pricing part of AWS we can see that Amazon charges people around .10 by the 'instance computing hour'. I've seen in a blog post somewhere (can't remember where exactly, and even if I did I think it was in Portuguese anyway) that this way your minimum monthly payment would be $72 (= .10 $s/hour x 24 hours x 30 days). Is this correct? (I don't think it is!) In my understanding is that this 'virtual computing time' is only used when your machine is actually doing something (serving pages, serving the admin via ssh, whatever), so real billable usage would be less than 720 hours/month in most webserver scenarios. Is my view correct? If it is, then it leads me to another question: is it economically interesting to buy access to one of these instances for testing? I mean, would I have the 'freedom' to 'forget' about it for a month and receive a very-close-to-zero (as in, a few cents) bill? Do you do it/know of anybody who does? Any thoughts on the matter (as in, "yes, it's a good idea", or "yes, but there's this 'gotcha': ...", or "no, nobody does it because of...")? PS: sorry for the loong question text. I highlighted the main questions for easy view. Also, I'm not sure if this question is actually more than one and if it's desirable for the community, so, sorry if it is too! Thanks in advance!

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  • Nginx Restart Issues

    - by heavymark
    All of the sudden when restarting Nginx I get the following error: Restarting nginx: [alert]: could not open error log file: open() "/var/log/nginx/error.log" failed (13: Permission denied) 2011/02/16 17:20:58 [warn] 23925#0: the "user" directive makes sense only if the master process runs with super-user privileges, ignored in /etc/nginx/nginx.conf:1 the configuration file /etc/nginx/nginx.conf syntax is ok 2011/02/16 17:20:58 [emerg] 23925#0: open() "/var/run/nginx.pid" failed (13: Permission denied) configuration file /etc/nginx/nginx.conf test failed On the front end part of the site loads but some files such as the CSS in particular are not loading. They exist on the server but when loading the resources directly in Chrome they say "Oops this page can't be found." I set a special group and user to run my apache files using suexec for my domain files. I think the nginx are owned by root however which I'm assuming is the problem but which nginx file ownerships would I change?

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  • Creating an Apache Virtual Directory, but updating Active Directory DNS

    - by SnoConeGod
    Hello all, I'm just getting started with using the Zend Framework and am following a recommended procedure where I am supposed to create an Apache Virtual Directory for the public-facing portion of a new Zend project. I don't THINK I had any issues creating the Virtual Directory, but my knowledge of the required DNS changes is rather lacking. The dev server I'm using is on a Microsoft Windows Active Directory domain, so I've added A records for both the server name and the subdomain. Still, trying to browse to the site from a Windows 7 PC isn't working properly. What am I missing? What's the proper set of steps for getting an Apache-served subdomain to appear properly in a peer computer's web browser? Details below: server: Debian command-line only, freshly installed today with Zend Server CE LAMP stack server name: ZENDEV subdomain: SQUARE.ZENDEV AD Domain functional level: 2008 mixed (run by a mishmash of 03 and 08 servers) attempting to visit the sites: http://square.zendev and http://square.zendev.domain.local (name of domain redacted, but using the local (not com) suffix) Apache Virtual Directory added to httpd.conf: NameVirtualHost *:80 <VirtualHost *:80> DocumentRoot "/var/www/square/public" ServerName square.localhost </VirtualHost> Is this only a problem with DNS? Or with DNS and my Virtual Directory? Thanks! John

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  • Incremental backup up from a remote ftp box to a Windows server

    - by user65712
    I need to backup a website to a Windows server every week and I only have access to remote FTP. I'd like to use an incremental backup program so that I can just copy the files every week on a schedule and not worry too much about the size of the backups becoming an issue. Unfortunately, I can't find a Windows program that will automatically make incremental backups of specific FTP folders and files, as most programs are designed to backup to FTP, not from it. Are there any applications that can do this? I also have a Ubuntu 10.04 box I could use to relay the site to the Windows server if I needed to run Linux programs, but I would prefer a Windows-only solution over a Linux/Windows one, and a combined Linux/Windows solution over not having it work at all.

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  • Can't get simple Apache VHost up and running

    - by TK Kocheran
    Unfortunately, I can't seem to get a simple Apache VHost online. I used to simply have one VHost which bound to all: <VirtualHost *:80>, but this isn't appropriate for security anymore. I need to have one VHost for localhost requests (ie my dev server) and one for incoming requests via my domain name. Here's my new VHost: NameVirtualHost domain1.com <VirtualHost domain1.com:80> DocumentRoot /var/www ServerName domain1.com </VirtualHost> <VirtualHost domain2.com:80> DocumentRoot /var/www ServerName domain2.com </VirtualHost> After I restart my server, I see the following errors in my log: [Wed Feb 16 11:26:36 2011] [error] [client ####.###.###.###] File does not exist: /htdocs [Wed Feb 16 11:26:36 2011] [error] [client ####.###.###.###] File does not exist: /htdocs What am I doing wrong? EDIT As per the answer give below, I have modified my configuration. Here are my configuration files: /etc/apache2/ports.conf: Listen 80 <IfModule mod_ssl.c> # If you add NameVirtualHost *:443 here, you will also have to change # the VirtualHost statement in /etc/apache2/sites-available/default-ssl # to <VirtualHost *:443> # Server Name Indication for SSL named virtual hosts is currently not # supported by MSIE on Windows XP. Listen 443 </IfModule> <IfModule mod_gnutls.c> Listen 443 </IfModule> Here are my actual defined sites: /etc/apache2/sites-enabled/000-localhost: NameVirtualHost 127.0.0.1:80 <VirtualHost 127.0.0.1:80> ServerAdmin ######### DocumentRoot /var/www <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog /var/log/apache2/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog /var/log/apache2/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> RewriteEngine On RewriteLog "/var/log/apache2/mod_rewrite.log" RewriteLogLevel 9 <Location /> <Limit GET POST PUT> order allow,deny allow from all deny from 65.34.248.110 deny from 69.122.239.3 deny from 58.218.199.147 deny from 65.34.248.110 </Limit> </Location> </VirtualHost> /etc/apache2/sites-enabled/001-rfkrocktk.dyndns.org: NameVirtualHost rfkrocktk.dyndns.org:80 <VirtualHost rfkrocktk.dyndns.org:80> DocumentRoot /var/www ServerName rfkrocktk.dyndns.org </VirtualHost> And, just for kicks, my main file: /etc/apache2/apache2.conf: # # Based upon the NCSA server configuration files originally by Rob McCool. # # This is the main Apache server configuration file. It contains the # configuration directives that give the server its instructions. # See http://httpd.apache.org/docs/2.2/ for detailed information about # the directives. # # Do NOT simply read the instructions in here without understanding # what they do. They're here only as hints or reminders. If you are unsure # consult the online docs. You have been warned. # # The configuration directives are grouped into three basic sections: # 1. Directives that control the operation of the Apache server process as a # whole (the 'global environment'). # 2. Directives that define the parameters of the 'main' or 'default' server, # which responds to requests that aren't handled by a virtual host. # These directives also provide default values for the settings # of all virtual hosts. # 3. Settings for virtual hosts, which allow Web requests to be sent to # different IP addresses or hostnames and have them handled by the # same Apache server process. # # Configuration and logfile names: If the filenames you specify for many # of the server's control files begin with "/" (or "drive:/" for Win32), the # server will use that explicit path. If the filenames do *not* begin # with "/", the value of ServerRoot is prepended -- so "/var/log/apache2/foo.log" # with ServerRoot set to "" will be interpreted by the # server as "//var/log/apache2/foo.log". # ### Section 1: Global Environment # # The directives in this section affect the overall operation of Apache, # such as the number of concurrent requests it can handle or where it # can find its configuration files. # # # ServerRoot: The top of the directory tree under which the server's # configuration, error, and log files are kept. # # NOTE! If you intend to place this on an NFS (or otherwise network) # mounted filesystem then please read the LockFile documentation (available # at <URL:http://httpd.apache.org/docs-2.1/mod/mpm_common.html#lockfile>); # you will save yourself a lot of trouble. # # Do NOT add a slash at the end of the directory path. # ServerRoot "/etc/apache2" # # The accept serialization lock file MUST BE STORED ON A LOCAL DISK. # #<IfModule !mpm_winnt.c> #<IfModule !mpm_netware.c> LockFile /var/lock/apache2/accept.lock #</IfModule> #</IfModule> # # PidFile: The file in which the server should record its process # identification number when it starts. # This needs to be set in /etc/apache2/envvars # PidFile ${APACHE_PID_FILE} # # Timeout: The number of seconds before receives and sends time out. # Timeout 300 # # KeepAlive: Whether or not to allow persistent connections (more than # one request per connection). Set to "Off" to deactivate. # KeepAlive On # # MaxKeepAliveRequests: The maximum number of requests to allow # during a persistent connection. Set to 0 to allow an unlimited amount. # We recommend you leave this number high, for maximum performance. # MaxKeepAliveRequests 100 # # KeepAliveTimeout: Number of seconds to wait for the next request from the # same client on the same connection. # KeepAliveTimeout 15 ## ## Server-Pool Size Regulation (MPM specific) ## # prefork MPM # StartServers: number of server processes to start # MinSpareServers: minimum number of server processes which are kept spare # MaxSpareServers: maximum number of server processes which are kept spare # MaxClients: maximum number of server processes allowed to start # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 150 MaxRequestsPerChild 0 </IfModule> # worker MPM # StartServers: initial number of server processes to start # MaxClients: maximum number of simultaneous client connections # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_worker_module> StartServers 2 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxClients 150 MaxRequestsPerChild 0 </IfModule> # event MPM # StartServers: initial number of server processes to start # MaxClients: maximum number of simultaneous client connections # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_event_module> StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> # These need to be set in /etc/apache2/envvars User ${APACHE_RUN_USER} Group ${APACHE_RUN_GROUP} # # AccessFileName: The name of the file to look for in each directory # for additional configuration directives. See also the AllowOverride # directive. # AccessFileName .htaccess # # The following lines prevent .htaccess and .htpasswd files from being # viewed by Web clients. # <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy all </Files> # # DefaultType is the default MIME type the server will use for a document # if it cannot otherwise determine one, such as from filename extensions. # If your server contains mostly text or HTML documents, "text/plain" is # a good value. If most of your content is binary, such as applications # or images, you may want to use "application/octet-stream" instead to # keep browsers from trying to display binary files as though they are # text. # DefaultType text/plain # # HostnameLookups: Log the names of clients or just their IP addresses # e.g., www.apache.org (on) or 204.62.129.132 (off). # The default is off because it'd be overall better for the net if people # had to knowingly turn this feature on, since enabling it means that # each client request will result in AT LEAST one lookup request to the # nameserver. # HostnameLookups Off # ErrorLog: The location of the error log file. # If you do not specify an ErrorLog directive within a <VirtualHost> # container, error messages relating to that virtual host will be # logged here. If you *do* define an error logfile for a <VirtualHost> # container, that host's errors will be logged there and not here. # ErrorLog /var/log/apache2/error.log # # LogLevel: Control the number of messages logged to the error_log. # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. # LogLevel warn # Include module configuration: Include /etc/apache2/mods-enabled/*.load Include /etc/apache2/mods-enabled/*.conf # Include all the user configurations: Include /etc/apache2/httpd.conf # Include ports listing Include /etc/apache2/ports.conf # # The following directives define some format nicknames for use with # a CustomLog directive (see below). # If you are behind a reverse proxy, you might want to change %h into %{X-Forwarded-For}i # LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %O" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent # # Define an access log for VirtualHosts that don't define their own logfile CustomLog /var/log/apache2/other_vhosts_access.log vhost_combined # Include of directories ignores editors' and dpkg's backup files, # see README.Debian for details. # Include generic snippets of statements Include /etc/apache2/conf.d/ # Include the virtual host configurations: Include /etc/apache2/sites-enabled/ what else do I need to do to fix it? Should I be telling apache to listen on 127.0.0.1:80, or isn't it already listening there?

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  • Apache mod_proxy_html Substitute: how to re-use part of regex match? (regex variables?)

    - by goober
    Hi all, Have a unique URL-rewriting situation in Apache. I need to be able to take a URL that starts with "\u002f[X]" or '\u002f[X]" Where X is the rest of some URL, and substitute the text "\u002fmeis2\u002f[X] I'm not sure how the Regex works in Apache -- I think it's the same as Perl 5? -- but even then I'm a little unsure how this would be done. My hunch is that it has to do with Regex grouping and then using $1 to pull the variable out, but I'm entirely unfamiliar with this process in Apache. Hoping someone can help -- thanks!

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  • Can I replicate data between mySQL and SQL Server/SQL Azure?

    - by Ernest Mueller
    I have a replicated mySQL setup running happily on Amazon AWS, making user data available locally in various regions. Now I'm faced with an app that needs to go up on Microsoft Azure and I need to replicate the data over to there as well. So that's annoying. I am faced with several options: Replicate from mySQL to SQL Azure/SQL Server seems like it would be lovely - is this possible? I'd consider using a third party tool and paying $$ if I had to. We're not using anything complicated in the db feature set, it's just data in tables. Get mySQL working on Microsoft Azure - which seems really dicey at best. All the HOWTOs I can find say "this is possible but you really shouldn't try this for production apps." Go non-realtime and do syncs from mySQL to SQL Azure, which may be somewhat expensive and slower. Rip out all my mySQL on Amazon and use SQL Server there, which would make Baby Jesus cry. Has anyone gotten mySQL to SQL Azure/SQL Server replication or syncing working? Or have any other approaches (a NoSQL solution that replicates and might meet our but-we-need-to-join-some-tables needs that can easily be run on Amazon and Azure)?

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  • Problems forwarding zone to another DNS server.

    - by sebastian nielsen
    I have a authorative DNS server at 83.248.21.18 which are authorative for the domain "finahemgoteborg.se". Now my registrar is requiring me to have 2 DNS servers for the domain, so I would now want the machine 85.228.103.141 just forward all incoming queries for "finahemgoteborg.se" to the 83.248.21.18 server. In the 85.228.103.141 BIND server, I have the following config: zone "finahemgoteborg.se" in { type forward; forwarders {83.248.21.18;}; }; But the problem is that 85.228.103.141 is still responding with "REFUSED" when querying it for example www.finahemgoteborg.se A record. How can I fix it. I do NOT want to set up a master/slave situation, just one nameserver that forwards to a another. Edit The Rest of named.conf: options { directory "/var/cache/bind"; version "none"; allow-recursion {"none";}; minimal-responses no; }; zone "sebn.us.to" in{ type master; file "/etc/bind/sebn.us.to"; }; zone "ns1sebn.us.to" in{ type master; file "/etc/bind/sebn.us.to"; }; zone "ns2sebn.us.to" in{ type master; file "/etc/bind/sebn.us.to"; }; zone "finahemgoteborg.se" in{ type forward; forwarders {83.248.21.18;}; };

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  • How to get the basic mail command in ubuntu 10 to work

    - by Maureen Adamson
    I am a college lecturer to whom the task of supporting the students' Linux Server has fallen. My students just need to use the mail command to communicate with me and each other. I thought mail would be there by default but it wasn't. I have tried all the advice I found on the Internet and tried to install mailutils, sendmail, mailx, exim4 and postfix. There were more but I can't remember them all now. After installing (if it works - some of them don't), when I try to send a message they all give me: /usr/sbin/sendmail: file or directory not found. I don't need anything fancy - we don't need to access remote email, just locally on our server. Incidentally the same problems are occurring on the physical server and my test virtual machine, installed at different times but both Ubuntu 10. Can anyone help me?

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  • How to attach multiple ipv6 ips to eth1 on debian

    - by Noodles
    I've just got a new server with native ipv6. I want to attach multiple ipv6 ips to eth1, but the only way I can see to do so is to attach them individually: i.e. address 2607:f0d0:xxxx:xxxx::2 address 2607:f0d0:xxxx:xxxx::3 address 2607:f0d0:xxxx:xxxx::4 Is it possible to bind whole subnets of ipv6 to a single network interface on debian? My server host tells me I have 18,446,744,073,709,551,616 ipv6 addresses for that server, surely it gets to be a nightmare to manage if they all have to bound individually (plus ifconfig would look messy). Does anyone have a solution?

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  • Propagaging Apache rules Automatically for all folders Beneath Root [closed]

    - by Sam
    Hi folks, my webroot folder /httpdocs folder contains a .htaccess file The first lines look like this: RewriteEngine on RewriteBase / AddDefaultCharset UTF-8 Options +FollowSymLinks -Indexes -ExecCGI # DirectoryIndex index.php /index.php # ServerSignature Off Now, I want all settings that I have set it to, to be propagated automatically to other folders as well. How can I do that? Thanks very much for suggestions.

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  • Understanding Unix Permissions (w/ ACL)

    - by Dr. DOT
    I am trying to set permissions on my server properly. Currently I have a number of directories and files chmod'd at 0777 -- but I am not comfortable with it being this way. So at the advice of a serverfault specialist, I had my hosting provider install ACL on my shared virtual server. When I FTP to the server as my FTP user account "abc", I can do everything I need to do (and rightfully so) because all my dirs and files are owned by "abc", the group is "abc", and the 1st octet is set to 7 (rwx). That much I get. But here's where it gets dark gray for me. PHP is set to user "nobody". so when someone browses on of my web pages that either ends in .php or has some embedded PHP, I assume the last octet controls the access. Because all my dirs and files are owned by "abc" and assigned to group "abc", if the last octet was a 4 (r--) then the server would let the browser read the file. If it were a 6 (rw-) then the server would let the browser also write to the file or directory, correct? what if the web document does not end in .php or does not have any PHP embedded? What is the user then? how can I use ACL to not set the permission to 6 (rw-) or even 7 (rwx)? [not sure what execute does or means] Just looking for some sort of policy settings to best lock down my dirs and files while allowing my PHP scripts to do uploads and write to files (so my users don't call me to tell me "permission denied". Ok, thanks to anyone out there willing to lend me a hand. It is greatly appreciated.

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  • Advice on cloning disk

    - by hks
    I'm going to buy a second disk for backup, the same size as my laptops. I want to mount it in a casing via usb and backup an entire hdd every soemtime. That's because I want the posibility to just switch drives in case of something goes wrong. I'm using Linux and obviously the right tool seems to be dd. The thing is that my laptop drive has a speed of around 50-70 MB/s and usb 2.0 is 57 MB/s. So to copy my 250GB disk should take me more than 1 hour if I'm lucky. I can't wait this much. I want some differential backup. I read one of JWZ articles. In it he gives more details for using rsync on Mac. He writes that there is possibility of making rsync'ed disk bootable. So my question is: how to make rsync'ed hdd bootable under Linux or are there other 'quick backup' tools for Linux that would allow me to just swap drives? Or should I just stick to dd :( ?

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  • Windows 7 sometimes boots in VGA mode

    - by TuxRug
    I have an Asus G50VT-x5 laptop with nVidia GeForce9800M-GS graphics. Normally, Windows boots normally, but about 20% of the time (rough estimate), it will boot with the fallback VGA driver, maxing out at 800x600 with no Aero. I've checked the system logs and there is nothing indicating an error loading the nVidia driver. It even specifies in the logs that the Nvidia Display Driver service started successfully, even though it has booted in safe graphics mode. This has been happening for a while, but it's happening a little more often now than it was before. Since the first time my system exhibited this behavior, I have updated my graphics driver a handful of times. I used System Information for Windows to check for problems there, but the only thing that stood out was the following: Core Temperature 4486449 °C (8075639 °F) Shaders Temperature 1171513530 °C (2108724330 °F) I know this reading is incorrect, because my laptop is nowhere near the surface of the sun and my desk has not burst into flames. When it's opererating normally, I get a sane reading like [Core Temperature 58 °C (136 °F)] with no Shaders Temperature listed. All I have to do to resolve the issue is reboot. I have seen no stability issues with the graphics or anything else. A long time ago, I had an issue with this computer where my framerate would suddenly drop during a 3D game from 40fps to <1fps, but after looking at the temperature readout immediately after quitting a game, I removed the bottom panel and blew the dust out of the vent and heatsink. Since then I have no drops in framerate under any situation. I have uploaded a zip containing the SIW reports for when the problem is occurring and when the computer is operating normally. I don't have a paid account so it can only be downloaded 10 times, so please only download the reports if you think you can use them. If you try to download the reports and they are no longer available, please comment and I will re-upload them. If you want to look at the files, they are on Rapidshare. EDIT It happened again, and I looked a little deeper into the System logs. When this happens, there are a lot of errors about other device drivers unable to start. All of these errors are for PnP drivers. Also, my USB keyboard and mouse take a few moments before they actually start working, although this happens sometimes the first normal boot as well. I am quite sure this is related, so I am adding the pnp tag. Also, CHKDSK will not run on boot. Even if a check is scheduled or a volume is manually set as dirty, CHKDSK will be skipped entirely, not even leaving an entry in the System logs. I tried running CHKNTFS /D, which did not work. I then manually changed my HKLM\System\CurrentControlSet\Control\Session Manager BootExecute value to the default listed on Microsoft's website. That did not work either. I ended up booting to repair mode and running CHKDSK there, which found a number of minor inconsistencies on my system drive, but none on my data drive. I have no idea if this is related. Some more information for those who don't download my SIW report file: Antivirus and Firewall are ESET Smart Security I have three different virutalization programs installed: VMware Player, Windows Virtual PC, and VirtualBox. The network adapters for these show up in the log of failed device starts. EDIT 2 I tried running sfc /scannow, which reported that it found corrupted files that could not be fixed. The CBS log is extremely cryptic. I tried booting to my install disk, launching repair mode, and doing an offline sfc from there, which produced the same result.

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  • Is SATA bandwith per Port or per Controller?

    - by instanceofTom
    I always assumed that it was per Controller channel, and that If I have 4xSATA 3.0Gb/s ports on my Motherboard then I should have a potential 12.0Gb/s of bandwith. However, after doing some searching I found conflicting information suggesting that if I had 4xSATA drives connected to my MB and were using them simultaneously each drive would get only 3.0Gb/s /4 = 768 Mb/s max bandwith. So I wanted to clear up my understanding. Side question: Are there other hdd/ssd bandwith bottlenecks to be aware of? (Links to already answered questions are more than welcome)

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  • Snippets between desktop and laptop

    - by Jamie F
    The Situation: At work, I have a nice beefy desktop running Windows Server 2008 R2 (SharePoint dev machine). My handy ThinkPad is right next to it. Every once in a while I'd like to cut and paste or share something (usually text) between the machines: for example, I might be headed out and I'd like to take send the URL I'm reading from the desktop to the laptop. Of course I can create a share or use the Admin shares and create files to get stuff back and forth, but that seems heavyweight for what I'm thinking of. I'm thinking more along the lines of sending myself an IM. How do you get little things from machine to machine? Keep a shared folder pinned to the taskbar? Send an email to yourself? Bookmark sync? While on it, I'm looking for a decent multiple clipboard handler: maybe these two functions are combined in some nice little utility? I suspect I'm missing something simple here... Thanks... Jamie F.

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  • Purpose of LAN Domain?

    - by Leonard Thieu
    What is the purpose of creating a domain name for your LAN? I'm using DD-WRT on my router and assigned local.moofz.com as the LAN domain. I setup Apache HTTP servers on two of the computers on my LAN to test it out. I could reach them on oneil.local.moofz.com and vala.local.moofz.com, but I found out that I could also reach them via their hostnames oneil and vala. If I can reach them through their host names, then what would be the purpose of having a domain name for my LAN?

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  • mounting ext4 fs with block size of 65536

    - by seaquest
    I am doing some benchmarking on EXT4 performance on Compact Flash media. I have created an ext4 fs with block size of 65536. however I can not mount it on ubuntu-10.10-netbook-i386. (it is already mounting ext4 fs with 4096 bytes of block sizes) According to my readings on ext4 it should allow such big block sized fs. I want to hear your comments. root@ubuntu:~# mkfs.ext4 -b 65536 /dev/sda3 Warning: blocksize 65536 not usable on most systems. mke2fs 1.41.12 (17-May-2010) mkfs.ext4: 65536-byte blocks too big for system (max 4096) Proceed anyway? (y,n) y Warning: 65536-byte blocks too big for system (max 4096), forced to continue Filesystem label= OS type: Linux Block size=65536 (log=6) Fragment size=65536 (log=6) Stride=0 blocks, Stripe width=0 blocks 19968 inodes, 19830 blocks 991 blocks (5.00%) reserved for the super user First data block=0 1 block group 65528 blocks per group, 65528 fragments per group 19968 inodes per group Writing inode tables: done Creating journal (1024 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 37 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override. root@ubuntu:~# tune2fs -l /dev/sda3 tune2fs 1.41.12 (17-May-2010) Filesystem volume name: <none> Last mounted on: <not available> Filesystem UUID: 4cf3f507-e7b4-463c-be11-5b408097099b Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: (none) Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 19968 Block count: 19830 Reserved block count: 991 Free blocks: 18720 Free inodes: 19957 First block: 0 Block size: 65536 Fragment size: 65536 Blocks per group: 65528 Fragments per group: 65528 Inodes per group: 19968 Inode blocks per group: 78 Flex block group size: 16 Filesystem created: Sat Feb 5 14:39:55 2011 Last mount time: n/a Last write time: Sat Feb 5 14:40:02 2011 Mount count: 0 Maximum mount count: 37 Last checked: Sat Feb 5 14:39:55 2011 Check interval: 15552000 (6 months) Next check after: Thu Aug 4 14:39:55 2011 Lifetime writes: 70 MB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: afb5b570-9d47-4786-bad2-4aacb3b73516 Journal backup: inode blocks root@ubuntu:~# mount -t ext4 /dev/sda3 /mnt/ mount: wrong fs type, bad option, bad superblock on /dev/sda3, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so

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  • Viewing Postscript (or PDF) on OS X: Aliasing issues

    - by mankoff
    I am generating postscript graphics and am trying to find a balance between non-aliasing and over-aliasing. If I use the raw ghostscript viewer gs on the Postscript, it looks good. The text appears anti-aliased, but the image remains nice and blocky. Unfortunately, gs has no real user interface and loses all of the nice things that Preview.app has. I could install gv, but the dependency bloat is huge! It requires all of gnome. And even that isn't a great viewer compared to Preview.app or Skim.app. Here is an image viewed with gs: From a user-interaction and Mac-ish perspective, Preview.app (or Skim.app is a much nicer program to use. They have the option to turn on or off aliasing, but neither option looks very good. Which aliasing on, the image is blurry. When it is off, the graphic matches what is seen from gs, but there are two issues. Minor issue: the font is ugly. Uglier than with gs. Major issue: Every PDF is un-aliased, making it hard to read regular PDFs full of text. So, in summary: Is there a way to manually generate the PDF from the PS that overcomes these issues? Is there a way to find a middle ground of alias/unalias with Preview.app? Is there another app that displays with quality like gs, but has a decent UI like Skim.app or Preview.app Is there a way to have Preview.app turn off aliasing for only one file (containing graphics) but leave it enabled in general so that text PDFs are still readable?

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  • Default Window Size and Positions

    - by muntoo
    I'm running Vista Home Premium 32-Bit, though I doubt that matters, in this case. So, how do you set the default windows size/positions? Is there a registry tweak for this? Going to Tools->Folder Options...->View Apply to Folders or Reset Folders doesn't work. So, whenever I open a new window to a random new folder I haven't opened before, I don't want it to take 75% of the screen. Is there any way I could make it open smaller? (So it opens correctly the first time.)

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