Search Results

Search found 22641 results on 906 pages for 'use case'.

Page 637/906 | < Previous Page | 633 634 635 636 637 638 639 640 641 642 643 644  | Next Page >

• Windows Server 2008 backup VHD's - is it possible to mount/open in Windows 7?

  - by Simon

  Hi All, Is it possible to mount the VHD files created by the Windows Server 2008 backup utility onto a Windows 7 (release) client? Following an array failure I was very worried that there was a problem with both the backup sets on different USB drives as attaching the VHD to a Win 7 box did not show the expected structure (instead they behaved like unformatted disk space). Subsequently, I've attached the backup drive to a 2008r2 machine that I'd intended to be the replacement and the backup set can be browsed without issue (seemingly). When the new disks arrive I'll go through the recovery process and see where we are, but it looks promising so far. Is it simply the case that you can't take server created VHD's and mount them on desktop machines? (Rather than hyper-ventilating at the thought of years of lost photos and email, I'm now just mildly curious) Edit:One thing that has confused things is that the backup utility on Win7 is more restrictive about restoring from external devices than the equivilent on 2008r2. With r2, I can restore files 'from another server' and browse to external storage. Win7 only allows the back to be located on a network share. Once my box of new disks arrive and I've got something to restore onto, I'll move the smaller of the backup VHDs onto network storage reachable by Win7 and see if the VHD is readable. I haven't read up on the VHD process used by the backup app - I'm assuming it's a base VHD and differencing files used for incremental backups and that the restore app understands this. Finally: In retrospect the question should have been, 'can I restore a 2008r2 backup set via a Win 7 client' Thanks

  Read the article

• Four disks - RAID 10 or two mirrored pairs?

  - by ewwhite

  I have this discussion with developers quite often. The context is an application running in Linux that has a medium amount of disk I/O. The servers are HP ProLiant DL3x0 G6 with four disks of equal size @ 15k rpm, backed with a P410 controller and 512MB of battery or flash-based cache. There are two schools of thought here, and I wanted some feedback... 1). I'm of the mind that it makes sense to create an array containing all four disks set up in a RAID 10 (1+0) and partition as necessary. This gives the greatest headroom for growth, has the benefit of leveraging the higher spindle count and better fault-tolerance without degradation. 2). The developers think that it's better to have multiple RAID 1 pairs. One for the OS and one for the application data, citing that the spindle separation would reduce resource contention. However, this limits throughput by halving the number of drives and in this case, the OS doesn't really do much other than regular system logging. Additionally, the fact that we have the battery RAID cache and substantial RAM seems to negate the impact of disk latency... What are your thoughts?

  Read the article

• Mac creating files w/ wrong perms on samba share

  - by geoffjentry

  In my group, which is very heterogeneous in terms of machines, we use a samba share to collaborate on files and such. In all but one case, it works as expected (or at least close enough). The one exception is my boss' laptop, a snow leopard macbook air. On his desktop (also snow leopard), if he creates a file it ends up serverside with perms of 774, but when he creates it with the Air, the perms are 644. The key problem is the lack of group write permission on the laptop created files. What's really confusing is that everything that I've looked at on the two machines are identical - same version of OS X, same version of samba (3.0.25b-apple), same settings for the same software, etc. I can't imagine why one machine would be different than the other, but it is. To try to be complete w/ the description, here is the relevant portion of my smb.conf file: comment = my Share path = /path/to/share public = no writeable = yes printable = no force group = myshare directory mask = 0770 create mask = 0770 force create mode = 0770 force directory mode = 0770 EDIT: I looked at three more Macs and all of them worked as expected which leaves this one laptop the true oddball. This wasn't as good as a test as the others though, as they were all leopard.

  Read the article

• Script launching 3 copies of rsync

  - by organicveggie

  I have a simple script that uses rsync to copy a Postgres database to a backup location for use with Point In Time Recovery. The script is run every 2 hours via a cron job for the postgres user. For some strange reason, I can see three copies of rsync running in the process list. Any ideas why this might the case? Here's the cron entry: # crontab -u postgres -l PATH=/bin:/usr/bin:/usr/local/bin 0 */2 * * * /var/lib/pgsql/9.0/pitr_backup.sh And here's the ps list, which shows two copies of rsync running and one sleeping: # ps ax |grep rsync 9102 ? R 2:06 rsync -avW /var/lib/pgsql/9.0/data/ /var/lib/pgsql/9.0/backups/pitr_archives/20110629100001/ --exclude pg_xlog --exclude recovery.conf --exclude recovery.done --exclude pg_log 9103 ? S 0:00 rsync -avW /var/lib/pgsql/9.0/data/ /var/lib/pgsql/9.0/backups/pitr_archives/20110629100001/ --exclude pg_xlog --exclude recovery.conf --exclude recovery.done --exclude pg_log 9104 ? R 2:51 rsync -avW /var/lib/pgsql/9.0/data/ /var/lib/pgsql/9.0/backups/pitr_archives/20110629100001/ --exclude pg_xlog --exclude recovery.conf --exclude recovery.done --exclude pg_log And here's the uber simple script that seems to be the cause of the problem: #!/bin/sh LOG="/var/log/pgsql-pitr-backup.log" base_backup_dir="/var/lib/pgsql/9.0/backups" wal_archive_dir="$base_backup_dir/wal_archives" pitr_archive_dir="$base_backup_dir/pitr_archives" timestamp=`date +%Y%m%d%H%M%S` backup_dir="$pitr_archive_dir/$timestamp" mkdir -p $backup_dir echo `date` >> $LOG /usr/bin/psql -U postgres -c "SELECT pg_start_backup('$backup_dir');" rsync -avW /var/lib/pgsql/9.0/data/ $backup_dir/ --exclude pg_xlog --exclude recovery.conf --exclude recovery.done --exclude pg_log /usr/bin/psql -U postgres -c "SELECT pg_stop_backup();"

  Read the article

• Why can't I route to some sites from my MacBook Pro that I can see from my iPad? [closed]

  - by Robert Atkins

  I am on M1 Cable (residential) broadband in Singapore. I have an intermittent problem routing to some sites from my MacBook Pro—often Google-related sites (arduino.googlecode.com and ajax.googleapis.com right now, but sometimes even gmail.com.) This prevents StackExchange chat from working, for instance. Funny thing is, my iPad can route to those sites and they're on the same wireless network! I can ping the sites, but not traceroute to them which I find odd. That I can get through via the iPad implies the problem is with the MBP. In any case, calling M1 support is... not helpful. I get the same behaviour when I bypass the Airport Express entirely and plug the MBP directly into the cable modem. Can anybody explain a) how this is even possible and b) how to fix it? mella:~ ratkins$ ping ajax.googleapis.com PING googleapis.l.google.com (209.85.132.95): 56 data bytes 64 bytes from 209.85.132.95: icmp_seq=0 ttl=50 time=11.488 ms 64 bytes from 209.85.132.95: icmp_seq=1 ttl=53 time=13.012 ms 64 bytes from 209.85.132.95: icmp_seq=2 ttl=53 time=13.048 ms ^C --- googleapis.l.google.com ping statistics --- 3 packets transmitted, 3 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 11.488/12.516/13.048/0.727 ms mella:~ ratkins$ traceroute ajax.googleapis.com traceroute to googleapis.l.google.com (209.85.132.95), 64 hops max, 52 byte packets traceroute: sendto: No route to host 1 traceroute: wrote googleapis.l.google.com 52 chars, ret=-1 *traceroute: sendto: No route to host traceroute: wrote googleapis.l.google.com 52 chars, ret=-1 ^C mella:~ ratkins$ The traceroute from the iPad goes (and I'm copying this by hand): 10.0.1.1 119.56.34.1 172.20.8.222 172.31.253.11 202.65.245.1 202.65.245.142 209.85.243.156 72.14.233.145 209.85.132.82 From the MBP, I can't traceroute to any of the IPs from 172.20.8.222 onwards. [For extra flavour, not being able to access the above appears to stop me logging in to Server Fault via OpenID and formatting the above traceroutes correctly. Anyone with sufficient rep here to do so, I'd be much obliged.]

  Read the article

• 5GHz vs 2.4GHz dual band router, max mbps

  - by Tallboy

  I've done a fair amount of reading before posting this but there are a few things still unclear. I just bought a Netgear WNDR3700 N600. I understand that 5GHz offers more channels, less interference because of more available channels, wont interfere with a microwave and so on, and also has a shorter range. Currently, my router is broadcasting both signals (for my iPhone on 2.4, and my computer on 5) But my question is What is the max speed of 5GHz in mbps? In the router settings, it allows me to set '300mbps', but I keep reading online that the max is 54. Is this true? I noticed when I set up the router the default for 2.4 was set to 300 and the default for 5 was set to 54, so I changed both to 300. Is this fine as well? I don't see why it wouldn't be maxed out for both by default. On the box it says max rate of 300+300 so I assume this is correct, but it's throttled down so the router isn't stressing in case you have something streaming media 24/7 and slowing the internet down too. What is the max range of 5GHz? my apt is 780 square feet, and the router is in the main living room.

  Read the article

• Managing multiple IMAP accounts in Thunderbird

  - by baritoneuk

  I've been using Thunderbird for years without issues with 20+ pop3 accounts. I'm moving over to imap which will enable me to keep copies of the emails locally and on the server whilst keeping everthing synchronised. However I'm looking for the best way to manage multiple imap accounts on Thunderbird. Currently I have a filter that copies all the emails into a central inbox and into seperate local folders. The reason for this is I go through my inbox daily and delete all emails that don't require any action. I move any emails that require action to my "action" imap account folder. This way I can syncronise all the emails that require action across multiple computers (and mobile devices). This technique is my implemantion of the GTD or Getting things Done philosophy. I also copy over each email into seperate local folders. The reason I do this is just in case any emails on the imap accounts get deleted, or something drastic happens on the server which means I lose all the emails. My business partner has access to some of these emails and still uses pop3 (with "leave copy on server" checked), but I know sometimes Thunderbird can still delete emails off the server sometimes. The problem with the above is that thunderbird gives me the dreaded error dialogue saying that the emails cannot be filtered due to another process. I find the folder list in Thunderbird hard to manage. Here is a screenshot of part of my folder list- as you can see it's a bit of a complicated list and not easy to manage: What would be the best way of me managing multiple imap accounts whilst allowing me to have copies put in a central folder and emails in local folders? It would be useful if people think this is necessary, as perhaps there is a betterway? How do people manage multiple imap accounts in a way that allows them to keep on top of actionable emails? I'd be interested in how others manage this. I've never used the Thunderbird-based client "Postbox", does this handle multiple imaps better?

  Read the article

• MS Word 2010: Hide citation title when 2 publications by same first author from different years are in one citation block

  - by srunni

  I'm trying to hide the display of the titles for two publications by the same first author from different years that are in the same citation block. By default, the title is shown in citations when there are two publications by the same author in a given document. The easiest way to get around this is to right click on the citation, click "Edit Citation", and then suppress the title. However, the issue with this is that if there are 2 citations in 1 citation block (i.e., "(Smith, J., et al. 2010, Smith, J., et al. 2011)" rather than "(Smith, J., et al. 2010) (Smith, J., et al. 2011)"), then using that suppress option only suppresses the title for the first citation (in this case, the 2010 publication). OTOH, if I try to initially insert the publications in separate citation blocks, I can suppress the title in both citations, but I can't cut and paste one into the other's citation block. I can click "Cut" and the citation that was just cut disappears, but the "Paste" option is not available when my cursor is in the second citation block. Any ideas? Thanks!

  Read the article

• BTrFS crashhhh?

  - by bumbling fool

  I create a new BTrFS raid10 file system using two 250GB drives and the second partition on a third 80GB drive. I create a subvol and snapshot. I mount the snapshot and start copying 8GB of data to it. It gets to around 1GB and the Desktop disappears and what looks like a non interactive terminal comes up with dump/crash information. I don't have a camera handy or I'd take a picture and post it. It basically looks like stack trace info. CTRL-ALT F7 will eventually bring back the Desktop though but the entire BTrFS portion of the OS is hung and non responsive until I reboot. I've reformated and reproduced this problem 3 times now and I'm about to give up :( I realize it is possible this problem is not entirely BTrFS' fault because I'm on natty which is still alpha. More granular details in case I'm an idiot: 1) Create FS: sudo mkfs.btrfs -m raid10 -d raid10 /dev/sda2 /dev/sdb /dev/sdc 2) Initial temporary mount: mkdir /btrfs && sudo mount -t btrfs /dev/sda2 /btrfs 3) Create subvol btrfs s c /btrfs/vm 4) Create initial snapshot: (optional) btrfs s sn /btrfs/cantremember.snap.something 5)unmount /btrfs and mount /btrfs/vm sudo mount -t btrfs -o subvol=vm /dev/sda2 /btrfs/vm 6) Copy data to subvolume. 7) Balance data across drives: (optional) btrfs f bal <path> (never get to this step 7...) Am I doing something wrong?

  Read the article

• hosts.deny not blocking ip addresses

  - by Jamie

  I have the following in my /etc/hosts.deny file # # hosts.deny This file describes the names of the hosts which are # *not* allowed to use the local INET services, as decided # by the '/usr/sbin/tcpd' server. # # The portmap line is redundant, but it is left to remind you that # the new secure portmap uses hosts.deny and hosts.allow. In particular # you should know that NFS uses portmap! ALL:ALL and this in /etc/hosts.allow # # hosts.allow This file describes the names of the hosts which are # allowed to use the local INET services, as decided # by the '/usr/sbin/tcpd' server. # ALL:xx.xx.xx.xx , xx.xx.xxx.xx , xx.xx.xxx.xxx , xx.x.xxx.xxx , xx.xxx.xxx.xxx but i am still getting lots of these emails: Time: Thu Feb 10 13:39:55 2011 +0000 IP: 202.119.208.220 (CN/China/-) Failures: 5 (sshd) Interval: 300 seconds Blocked: Permanent Block Log entries: Feb 10 13:39:52 ds-103 sshd[12566]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.119.208.220 user=root Feb 10 13:39:52 ds-103 sshd[12567]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.119.208.220 user=root Feb 10 13:39:52 ds-103 sshd[12568]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.119.208.220 user=root Feb 10 13:39:52 ds-103 sshd[12571]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.119.208.220 user=root Feb 10 13:39:53 ds-103 sshd[12575]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=202.119.208.220 user=root whats worse is csf is trying to auto block these ip's when the attempt to get in but although it does put ip's in the csf.deny file they do not get blocked either So i am trying to block all ip's with /etc/hosts.deny and allow only the ip's i use with /etc/hosts.allow but so far it doesn't seem to work. right now i'm having to manually block each one with iptables, I would rather it automatically block the hackers in case I was away from a pc or asleep

  Read the article

• Replacing all disks in a non-OS RAID 5 volume

  - by molecule

  Hi all, We currently have a server with 8 x HDD slots. It is a HP DL380G5 with a P400 controller. 2 x HDD are in a RAID 1+0 config and this hosts the OS. 6 x HDD are in a RAID 5 config and holds an Oracle DB. Basically the RAID 5 volume is running out of space and we would like to swap all 6 with higher capacity disks. Excuse my ignorance as I am pretty new to this... I believe we will need to backup the data, delete the RAID volume, insert the new disks, recreate the volume, and restore the data. 2 questions: Do we need to worry about the OS partition or is it completely independent so we can simply take out the 6 and insert 6 new disks and get the controller to recognize the 6 new disks and form a new RAID 5 volume? We should not need to reinstall OS or Oracle correct? Since we are going to restore the data on the volume from another source (our vendor will take care of this) but we would like to keep the existing data on the 6 disks just in case we run into issues and want to fall back, is this possible? Thanks in advance.

  Read the article

• Very long (>300s) request processing time on Apache Server serving static content from particular IP

  - by Ron Bieber

  We are running an Apache 2.2 server for a very large web site. Over the past few months we have been having some users reporting slow response times, while others (including our resources, both on the internal network and our home networks) do not see any degradation in performance. After a ton of investigation, we finally found a "Deny from none" statement in our configuration that was causing reverse DNS lookups (which were timing out) that solved the bulk of our issues, but we still have some customers that we are seeing in the Apache logs (using %D in the log format) with request processing times of 300s for images, css, javascript and other static content. We've checked all Deny / Allow statements for reoccurrence of "none", as well as all other things we know of that would cause reverse DNS lookups (such as using "REMOTE_HOST" in rewrite rules, using %a instead of %h in our log format configuration) as well as verified that HostnameLookups is set to "Off". As an aside, we've also validated that reverse DNS lookups for folks having this problem do not time out - so I'm fairly certain DNS is not an issue in this case. I've run out of ideas. Are there any Apache configuration scenarios that someone can point me to that I might be missing that would cause request times for static content to take so long only for certain users? Thank you in advance.

  Read the article

• placing shell script under systemd control

  - by Calvin Cheng

  Assuming I have a shell script like this:- #!/bin/sh # cherrypy_server.sh PROCESSES=10 THREADS=1 # threads per process BASE_PORT=3035 # the first port used # you need to make the PIDFILE dir and insure it has the right permissions PIDFILE="/var/run/cherrypy/myproject.pid" WORKDIR=`dirname "$0"` cd "$WORKDIR" cp_start_proc() { N=$1 P=$(( $BASE_PORT + $N - 1 )) ./manage.py runcpserver daemonize=1 port=$P pidfile="$PIDFILE-$N" threads=$THREADS request_queue_size=0 verbose=0 } cp_start() { for N in `seq 1 $PROCESSES`; do cp_start_proc $N done } cp_stop_proc() { N=$1 #[ -f "$PIDFILE-$N" ] && kill `cat "$PIDFILE-$N"` [ -f "$PIDFILE-$N" ] && ./manage.py runcpserver pidfile="$PIDFILE-$N" stop rm -f "$PIDFILE-$N" } cp_stop() { for N in `seq 1 $PROCESSES`; do cp_stop_proc $N done } cp_restart_proc() { N=$1 cp_stop_proc $N #sleep 1 cp_start_proc $N } cp_restart() { for N in `seq 1 $PROCESSES`; do cp_restart_proc $N done } case "$1" in "start") cp_start ;; "stop") cp_stop ;; "restart") cp_restart ;; *) "$@" ;; esac From the bash script, we can essentially do 3 things: start the cherrypy server by calling ./cherrypy_server.sh start stop the cherrypy server by calling ./cherrypy_server.sh stop restart the cherrypy server by calling ./cherrypy_server.sh restart How would I place this shell script under systemd's control as a cherrypy.service file (with the obvious goal of having systemd start up the cherrypy server when a machine has been rebooted)? Reference systemd service file example here - https://wiki.archlinux.org/index.php/Systemd#Using_service_file

  Read the article

• What are the most important aspects to consider when choosing a SAN for a small office virtualizatio

  - by Prof. Moriarty

  I am in the process of consolidating 6 physical servers running 6 different operating system flavors (don't ask) into two identical physical servers (Dell PowerEdge 2900), using the free VMware ESXi 4.0 platform. We will install an iSCSI SAN over a 1GbE network, and store all virtual machine images on the SAN. Each physical server would run 3 VMs, and in the case of a physical server failure, we would manually switch over the other 3. These are all internal servers, while important, they can tolerate some amount of downtime (say <1h) to keep cost and complexity associated with HA down. I now need to choose the SAN to be used for the setup, on a low budget. We currently have about 2TB of data, but of course I want to able to grow, do backups of VM snapshots on other drives and remove them to a different location, etc. So what I would like to know is: Which are the must have features for this setup, without which using a SAN is not worth it? We are mostly a Dell shop, so I have been looking at the EqualLogic PS4000E High Availability model. Any opinions, anecdotes, bad experiences with this model? (This is one of the few models which could accomodate our existing disks from the physical servers.) If you can recommend something that is not Dell, but it has better value, I would most definitely consider it. Caveats, things to look out for?

  Read the article

• Can I autoregister my clients/servers in local DNS?

  - by Christian Wattengård

  Right now I have a W2k12 server at home that I run as a domain controller. This has the extra benefit of registering every "subordinate" computers name in it's DNS so that I don't have to go around remembering IP's all the time. (And it let's me easily run dhcp also on my servers). I need to rework my home network for several odd reasons, and in this new scenario there is no place for a big honking W2k12 server box. I have a RasPI, and I have other smallish linux boxen I can use. (In a worst case scenario I'll use my NUC, but then I'll be forced to use my home cinema's UPnP-client for media... The HORROR!!) Is it possible to set up a DNS-server-"appliance" that somehow autoregisters it's own hostname.. Scenario: Router (N66u) on 172.20.20.1. Runs DHCP on 172.20.20.100-200 range. Server [verdant] of a *nix flavor on 172.20.20.2 Laptop [speedy] of W8 flavor on DHCP assigned Laptop [canary] of W8 flavor on DHCP assigned Desktop [lianyu] of Ubunto flavor on DHCP assigned What I would like is that all of the above servers (except possibly the router) would be available on verdant.starling.lan and canary.starling.lan and so on. This is how it works right now (except the Ubuntu box... I haven't cracked that one yet) because Windows just does this for you.. I would also be able to do this without any manual labor on the server. When I tell my box it's name is smoak it should "immediately" be available as smoak.starling.lan without any extra configuration on my part. How can I do this in a Linux (Ubuntu) environment? (Bonus comment upvote for naming the naming scheme :P )

  Read the article

• Fully FOSS EMail solution

  - by Ravi

  I am looking at various FOSS options to build a robust EMail solution for a government funded university. Commercial options are to be chosen only in the worst case scenario. Here are the requirements: Approx 1000-1500 users - Postfix or Exim? (Sendmail is out;-)) Mailing lists for different groups/Need web based archive - Mailman? Sympa? Centralised identity store - OpenLDAP? Fedora 389DS? Secure IMAP only - no POP3 required - Courier? Dovecot? Cyrus?? Anti Spam - SpamAssasin? what else? Calendaring - ?? webmail - good to have, not mandatory - needs to be very secure...so squirrelmail is out;-)? Other questions: What mailbox storage format to use? where to store? database/file system? Simple and effective HA options? Is there a web proxy equivalent to squid in the mail server world? software load balancers?CARP? Monitoring and alert? Backup? The govt wants to stimulate the local economy by buying hardware locally from whitebox vendors. Also local consultants and university students will do the integration. We looked at out-of-the-box integrated solutions like Axigen, Zimbra and GMail but each was ruled out in favour of a DIY approach in the hopes of full control over the data and avoiding vendor lockin - which i though was a smart thing to do. I wish more provincial governments in the developing world think of these sort of initiatives As for OS - Debian, FreeBSD would be first preference. Commercial OS's need not apply. CentOS as second tier option...

  Read the article

• Need help with custom init script

  - by churnd

  I'm trying to set up an init script for a process on redhat linux: #!/bin/sh # # Startup script for Conquest # # chkconfig: 345 85 15 - start or stop process definition within the boot process # description: Conquest DICOM Server # processname: conquest # pidfile: /var/run/conquest.pid # Source function library. This creates the operating environment for the process to be started . /etc/rc.d/init.d/functions CONQ_DIR=/usr/local/conquest case "$1" in start) echo -n "Starting Conquest DICOM server: " cd $CONQ_DIR && daemon --user mruser ./dgate -v - Starts only one process of a given name. echo touch /var/lock/subsys/conquest ;; stop) echo -n "Shutting down Conquest DICOM server: " killproc conquest echo rm -f /var/lock/subsys/conquest rm -f /var/run/conquest.pid - Only if process generates this file ;; status) status conquest ;; restart) $0 stop $0 start ;; reload) echo -n "Reloading process-name: " killproc conquest -HUP echo ;; *) echo "Usage: $0 {start|stop|restart|reload|status}" exit 1 esac exit 0 However, the cd $CONQ_DIR is getting ignored, because the script errors out: # ./conquest start Starting Conquest DICOM server: -bash: ./dgate: No such file or directory [FAILED] For some reason, I have to run dgate as ./dgate. I cannot specify the full path /usr/local/conquest/dgate The software came with an init script for a Debian system, so the script uses start-stop-daemon, with the option --chdir to where dgate is, but I haven't found a way to do this with the Redhat daemon function.

  Read the article

• Rewriting html links with modproxyperlhtml

  - by Juancho

  I'm trying to setup an Apache reverse proxy using mod_proxy and modproxyperlhtml. This is my scenario: Domain for the proxy: http : // www.myserver.com/ Destination server (the one behind the proxy): http : // myserver.foo.com/myapp/ I'm sorry that I have to space the URL but serverfault doesn't allow me to post more than two links as "spam protection mechanism" (ridiculous on a site where you ask questions about servers and it's really probable to post more than two times the same URL's to explain your question). The idea is to map http : // www.myserver.com/ to http : // myserver.foo.com/myapp/ . Note that the path on the proxy is / and on the destination server is /myapp/. All of the examples I can find on the net (like the one on the official documentation of modproxyperlhtml) are the other way around, ie. path on the proxy /myapp/ and path on the destination server /. This is my current config that doesn't work: ProxyPass / http : // myserver.foo.com/myapp/ ProxyPassReverse / http : // myserver.foo.com/myapp/ PerlInputFilterHandler Apache2::ModProxyPerlHtml PerlOutputFilterHandler Apache2::ModProxyPerlHtml SetHandler perl-script PerlSetVar ProxyHTMLVerbose "On" LogLevel Info <Location / > # ProxyPassReverse /myapp/ PerlAddVar ProxyHTMLURLMap "/myapp/ /" PerlAddVar ProxyHTMLURLMap "http : // myserver.foo.com /" </Location> The examples use the ProxyPassReverse inside the Location directive, but on my case doesn't work, only when outside. With this configuration the links aren't being replaced as they should be, my guess is that the location isn't being found, thus the rewrite rules aren't being applied. The error log only shows that it uncompresses the content, searches it but doesn't find anything: [Tue Nov 13 0842:05 2012] [warn] [ModProxyPerlHtml] Uncompressing text/html; charset=UTF-8, Content-Encoding: gzip\n [Tue Nov 13 08:42:05 2012] [warn] [ModProxyPerlHtml] Content-type 'text/html; charset=UTF-8' match: /(text\\/javascript|text\\/html|text\\/css|text\\/xml|application\\/.*javascript|application\\/.*xml)/is\n [Tue Nov 13 08:42:05 2012] [warn] [ModProxyPerlHtml] Compressing output as Content-Encoding: gzip\n [Tue Nov 13 08:42:06 2012] [warn] [ModProxyPerlHtml] Content-type 'text/html; charset=UTF-8' match: /(text\\/javascript|text\\/html|text\\/css|text\\/xml|application\\/.*javascript|application\\/.*xml)/is\n What could be wrong ?

  Read the article

• Mac Backup Plan

  - by Chuy77

  I'm reviewing my backup plan and would appreciate any thoughts about what more I should do (if anything) to make sure I'm properly covered in case of all hell breaking loose. :-) I have one machine. 1) I run a nightly clone with SuperDuper. I alternate the clone drive weekly so I have two clones, one never more than a week old. 2) I use BackBlaze as a sort of Time Machine in the cloud. It runs all the time and keeps everything on my machine backed up online. 3) I sync all my 1Password logins, etc. to my iPhone once a week. ...And that's it. I feel pretty covered. But I'm always reading stuff like this: http://www.43folders.com/2010/03/15/yes-another-backup-lecture And that doesn't even mention online backup, and seems like a huge pain in the behind. But maybe I'm being naive? Should I have more backups? Thanks for any feedback. I really appreciate it.

  Read the article

• Annoying trackpad freeze on MacBook [solved]

  - by Hafthor

  NOTE: Question marked answered because it was forced after being put up for bounty. Actual solution was to have Apple repair it. Trackpad usually works, but sometimes stops responding for around 5 seconds and then suddenly starts working again. Seems to happen when I switch between typing and moving + button-clicking and also when I do a lot of double-clicking. Tried turning off the "Ignore accidental trackpad input". Apple replaced the keyboard/mouse under warranty. Problem remains. Any ideas? Edit: White non-unibody Late-2008 13" MacBook - fully up-to-date OS. Doesn't seem to matter if it is plugged in or not. Edit: Updated to Snow Leopard - seems to have made it worse. Edit: Applying even a little pressure to the left palm rest creates this condition. Apple replaced the top case again and this time it seems to have fixed it. Although, it looks like they may have added a spacer on the left palm rest to "fix" it.

  Read the article

• Looking for a recommendation on measuring a high availability app that is using a CDN.

  - by T Reddy

  I work for a Fortune 500 company that struggles with accurately measuring performance and availability for high availability applications (i.e., apps that are up 99.5% with 5 seconds page to page navigation). We factor in both scheduled and unscheduled downtime to determine this availability number. However, we recently added a CDN into the mix, which kind of complicates our metrics a bit. The CDN now handles about 75% of our traffic, while sending the remainder to our own servers. We attempt to measure what we call a "true user experience" (i.e., our testing scripts emulate a typical user clicking through the application.) These monitoring scripts sit outside of our network, which means we're hitting the CDN about 75% of the time. Management has decided that we take the worst case scenario to measure availability. So if our origin servers are having problems, but yet the CDN is serving content just fine, we still take a hit on availability. The same is true the other way around. My thought is that as long as the "user experience" is successful, we should not unnecessarily punish ourselves. After all, a CDN is there to improve performance and availability! I'm just wondering if anyone has any knowledge of how other Fortune 500 companies calculate their availability numbers? I look at apple.com, for instance, of a storefront that uses a CDN that never seems to be down (unless there is about to be a major product announcement.) It would be great to have some hard, factual data because I don't believe that we need to unnecessarily hurt ourselves on these metrics. We are making business decisions based on these numbers. I can say, however, given that these metrics are visible to management, issues get addressed and resolved pretty fast (read: we cut through the red-tape pretty quick.) Unfortunately, as a developer, I don't want management to think that the application is up or down because some external factor (i.e., CDN) is influencing the numbers. Thoughts? (I mistakenly posted this question on StackOverflow, sorry in advance for the cross-post)

  Read the article

• Libvirt / QEmu Machine Fails and Refuses Restart Because of Memory Allocation Errors

  - by Elmar Weber

  I'm having a problem with libvirt. On a system restart all virtual machines (VMs) are started without a problem and keep running. Then at some point in time a set of machines shuts down according to their log. When I try to restart the machine, I'm getting an error that the memory allocation failed, although more than enough memory is free. server ~ # free total used free shared buffers cached Mem: 16176648 16025476 151172 0 285432 950300 -/+ buffers/cache: 14789744 1386904 Swap: 0 0 0 server ~ # virsh start zimbra error: Failed to start domain zimbra error: Unable to read from monitor: Connection reset by peer server ~ # tail -n 4 /var/log/libvirt/qemu/zimbra.log LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 3072 -smp 2,sockets=2,cores=1,threads=1 -name zimbra -uuid d05ddb7a-83c4-a77b-d8bc-a322648520cf -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/zimbra.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -drive file=/var/lib/libvirt/images/zimbra.img,if=none,id=drive-ide0-0-0,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -netdev tap,fd=19,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:21:a9:ad,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -usb -vnc 192.168.1.2:25 -k de -vga cirrus -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 char device redirected to /dev/pts/2 Failed to allocate 3221225472 B: Cannot allocate memory 2012-07-06 08:42:56.076+0000: shutting down server ~ # uname -a Linux server 3.2.0-26-generic #41-Ubuntu SMP Thu Jun 14 17:49:24 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux The system is a Ubuntu 12.04 server. The problem seems to occurs since the last restart, which was due to a number of package upgrades and a kernel upgrade. I tried booting with the previous kernel, the problem persists. I was not able to pinpoint an exact event when the machines fail, they do it at nearly the same time. The last time a duplicity job was running, this was not always the case however. Any suggestions on how to debug this? Best regards, elm

  Read the article

• Different approaches to share files over local network & playlists "collaboration"

  - by exTyn

  I know, that I can use Google to find methods to share files over local network [1]. But, I have never shared files over local network, and I want to do this in a good, professional way. Also, this could be a good community wiki, I think. Well, what I am asking for, is: what are pros and cons of different methods to sharing files ofver local network? In my case, I need to share files between Linux & Win 7, and I want it to be secure (= without access for anyone else but me & people in my room). Another question (connected with above topic) is about playing music over the local network. Let's say, I live with 2 other guys in a room, one of us have speakers and we want to collaborate in creating playlists (e.g. everyone is choosing 3 songs to be played). Is it possible? How to do this? I am asking this question on SuperUser, because it (question) is connected with hardware & software (network, connecting computers, software for managing playlists in network etc.). I think it is most accurate place for such question (I have considered SO and SF). [1] And I have already done this! But, I do not have an experience in this field (sharing files over local network), do I am asking about pros and cons.

  Read the article

• Is there the equivalent of cloud computing for modems?

  - by morpheous

  I asked this question on SF, and someone recommended that I ask it here - (I don't think I have enough points to move a question from SF to SO - and in any case, I don't know how to do it - so here is the question again): I am interested in the concept of PAAS (platform as a service). However, all talk about SAAS/PAAS seems to focus on only the computer itself - not its peripherals. Is it possible to 'outsource' modems as a resource - so that an app running remotely can pump data to a modem in the cloud? As a bit of background to the question, a group of us are thinking of starting a company that offers similar services to companies like twilio etc - but I want to 'outsource' both the computing hardware (thats PAAS - the easy bit) and the modems (thats what I cant seem to find any info on). Does anyone know if modems can be bundled as part of a PAAS service? - alternatively, is there a way that an application running on one computer can communicate (i.e. pump data) to a remote modem residing on another machine?. I assume I can come up with some protocol over UDP or TCP - but there is no point reinventing the wheel - if such a protocol like that already exists (or if it some open source software allows one to do this). Any suggestions on how to solve this problem?

  Read the article

• tcp msl timeout implementation in linux

  - by iamrohitbanga

  The following is given in the book TCP IP Illustrated by Stevens Quiet Time Concept The 2MSL wait provides protection against delayed segments from an earlier incarnation of a connection from being interpreted as part of a new connection that uses the same local and foreign IP addresses and port numbers. But this works only if a host with connections in the 2MSL wait does not crash. What if a host with ports in the 2MSL wait crashes, reboots within MSL seconds, and immediately establishes new connections using the same local and foreign IP addresses and port numbers corresponding to the local ports that were in the 2MSL wait before the crash? In this scenario, delayed segments from the connections that existed before the crash can be misinterpreted as belonging to the new connections created after the reboot. This can happen regardless of how the initial sequence number is chosen after the reboot. To protect against this scenario, RFC 793 states that TCP should not create any connections for MSL seconds after rebooting. This is called the quiet time Few implementations abide by this since most hosts take longer than MSL seconds to reboot after a crash. Do operating systems wait for 2MSL seconds now after a reboot before initiating a TCP connection. The boot times are also less these days. Although the ports and sequence numbers are random but is this wait implemented in Linux? Also RFC 793 says that this wait is not required if history is maintained. Does linux maintain any history of used sequence numbers for connections to handle this case?

  Read the article

< Previous Page | 633 634 635 636 637 638 639 640 641 642 643 644  | Next Page >