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• sendmail - DSN: Name Server host not found

  - by Daniel Mitchell

  I've recently setup a new backup server and have configured sendmail with a smart_relay_host Except every email from the command line doesn't go anywhere. From mail.log: Oct 3 14:32:52 **back01 sm-mta[16570]: p93DWqtC016568: to=<[email protected], ctladdr= (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=120762, relay=10.2.30.60, dsn=5.1.2, stat=Host unknown (Name server: 10.2.30.60: host not found) Oct 3 14:32:52 ***back01 sm-mta[16570]: p93DWqtC016568: p93DWqtC016570: DSN: Host unknown (Name server: 10.2.30.60: host not found) DNS is working correctly on this box. I can do forward and reverse lookups. I can also telnet to the mail relay and send a message that way. I'm stumped, any suggestions?

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• Need an alerting system if my cloning script fails

  - by rahum

  I've configured a nightly rsync to mirror one server to a standby offsite backup server. The total datastore on the primary is 1.5TB. In the course of getting this working, I ran into numerous instabilities with the environment, which I seem to have sorted out, but even though it's now working, I am still nervous. This is intended to be a disaster-scenario standby server, and if disaster strikes and the standby does not have all the proper data synchronized, I'm out of a job. Thus, I want to script a system that will confirm, after each nightly sync, that the destination data matches the source. I realize that rsync does this, but if rsync doesn't complete fully (which was happening during the setup troubleshooting), I need to know. Any suggestions? I'm best with Ruby, if that is relevant for the solution.

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• Generating my own SQL Server SSL Certificate

  - by Haoest

  I hear it's possible to make myself a test certificate with MakeCert from Windows SDK, but the beast is 1.5 GB, which I feel reluctant to download for a half-megabyte program. I do, however, have IIS Resource kit with me, which has selfssl to generate certificate for IIS. Will that work for SQL Server? Is there a more convenient way of generating myself an SSL certificate for SQL Server use? I even tried using CREATE CERTIFICATE with TSQL within SQL Server and then have it BACKUP into a file, but with no success. I must have confused the concept of certificate fundamentally. Any advice?

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• tradeoffs of iSCSI vs. AFP when using Time Machine with a NAS?

  - by ajit.george

  I'm setting up a home NAS device (Synology DS409) that I'm planning to use for Time Machine backups (amongst other things). What are the tradeoffs between using iSCSI or AFP to mount the backup volume? The Synology wiki suggests that iSCSI is better if the Mac will be frequently disconnected from the network or sleeping, from the point of view of the volume automatically remounting. What about filesystem consistency? Given that unplugging a USB drive without properly unmounting it often requires the Time Machine volume to be repaired, would iSCSI have the same issues? Thanks in advance.

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• Slow write speeds on new Gigabit home file server

  - by Ryan Holder

  So I finally got all my parts delivered to setup a home file/backup server this week. It's currently running Ubuntu Server and I'm using Samba to share files on my network. The server currently has a 2TB WD Green drive in it connected to a Asus M5A78L-M This is then connected via CAT6a to my new Gigabit switch (TP-Link TL-SG1005D). My home desktop is then also connected to this switch and again also through CAT6a cable. Currently when transfering files I will get a perfect 100MB/s read from the server to my Windows machine. When copying from my Windows machine to the server I get around 30/38MB/s. I know this drive is capable is faster speeds so would anybody have an idea of where the bottleneck is? Any help would be greatly appreciated :) EDIT: I have found ftp's write speed is much closer to what my Samba read speed is so I'm going to give it a guess that is a software problem rather than hardware

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• aws s3 works with script but not on cron

  - by user3800017

  guys.. My first post ! hope not the last .. I have few bunch of servers on aws ec2 platforms. I made a simple script to backup my custom logs on their s3 storage bucket. The problem is the script works fine .. but I tried to add it to the crontab. And the script executes but not the s3 sync/mv part ! Here is my code: NOW=$(date "+%b_%d_%Y") MY_HOSTNAME=`uname -n` mv /opt/req/req* /opt/req/bkup/ mv /opt/response/res* /opt/req/bkup/ cd /opt/req/bkup/ tar -cvf ${MY_HOSTNAME}_req_bkup_${NOW}.tar re* rm *.txt aws s3 mv /opt/req/bkup/* s3://req `

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• Orange Brightbox and NO-IP.com

  - by JSweete

  Strange one here i didnt know where to ask, and i know this is a developer resource but i was hoping with everyones tech know how someone may have a solution for my problem. Ok i had an orange livebox before and in the dynamic dns settings it had no-ip.com as a drop down option with login variables to update my account with a dynamic ip address. This worked great for years. However my livebox died and i now have a orange brightbox, and this doesnt have no-ip.com as a login update option for dynamic dns on my router. Does any one have any idea how i can get my domain to point to my home server with a dynamic ip address ideally for free? This is merely for testing and to have a backup server for my main remote server.

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• SQL Server 2008 Log-shipping: Without a UNC drive: how?

  - by samsmith

  My real question here is... is there a tool I can use? (E.g. I have a lot to do, and would prefer not to script it all up myself!) Anyone using the redgate (hmmm, they had a tool for this, but I do not see it on their web site now...) I have a primary web app at rackspace. Am setting up a backup copy of the app in another data center. I want to use SQL log replication to sync the db. Using SQL Server Web Edition. TIA for suggestions and insight!

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• Why's SMC failing on startup?

  - by Brian Knoblauch

  Trying to remove a user from one of our servers, but I seem to be thwarted at every turn... SMC refuses to load the user list (failing with a NoClassDefFoundError in the listAll method of UserContent). vipw just returns with "vipw: /etc/passwd file busy". I'm the only user on the system at the moment (it's our backup SRSS box), and both of these fail even right after a reboot. I don't have console access at the moment either unfortunately (or I would try single user mode). Of course, even if init mode S worked and let me do this one task, it doesn't solve the root problem. Ideas?

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• Bash script getting automatically deleted from Ubuntu 12.04 Server?

  - by Kris Anderson

  I'm running a bash script on an ubuntu 12.04 through cron. The script works fine for a few weeks (runs daily backups of websites, mysql databases, and copies to Amazon S3). However, twice now I've noticed that backups stopped happening. Both times the backup script (backupscript.sh) located in my home folder was no longer there. No one else has access to this server, so nothing was manually changed on the server and no one deleted the file by mistake. The cron job (nano /etc/crontab) still references this script, but the script itself disappears. What could cause this to happen? Does Ubuntu delete the script if it runs into some sort of error?

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• Deleting Time Machine in Mac OS X 10.6.4

  - by cappuccino

  Does anyone know how to delete Time Machine in Mac OS X 10.6.4? Before answering: sudo rm -rf /whateverthetimemachineis does not work Disabling the ACL permissions first with sudo fsaclctl -p /whatever -d does not work, sudo: fsaclctl: command not found Use the delete all backup feature in Time Machine... this is slow as hell, would take days. Need a command line solution. No I don't want to reformat the drive, I have other content on it, and no don't say I should have separated on two partition or two drives, I did it this say since partitions cannot be dynamically changed, and two drives is annoying since, whats the point of having a big drive?... plus has no relation to the issue at hand. Already googlied for hours and read everything on Super User, nothing working. and all solutions are the first 4. Any clues?

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• Windows Explorer and UAC: run elevated

  - by syneticon-dj

  I am profoundly annoyed by UAC and switch it off for my admin user wherever I can. Yet, there are situations where I can't - especially if those are machines not under my continuous administration. In this case, I am always challenged with the task of traversing directories using my administrative user via the Windows Explorer where regular users do not have "read" permissions. The possible two approaches to this problem so far: change the ACLs to the directory in question to include my user (Windows conveniently offers the Continue button in the "You don't currently have permissions to access this folder" dialog. This obviously sucks since more often than not I do not want to change ACLs but just look into the folder's contents use an elevated cmd.exe prompt along with a bunch of command line utilities - this usually takes a lot of time when browsing through large and / or complex directory structures What I would love to see would be a way to run Windows Explorer in elevated mode. I have yet to find out how to do so. But other suggestions solving this problem in an unobtrusive way without changing the entire system's configuration (and preferably without the need for downloading / installing anything) are very welcome, too. I have seen this post with a suggestion for altering HKCR - interesting, but it changes the behavior for all users, which I am not allowed to do in most situations. Also, some folks have suggested using UNC paths to access the folders - unfortunately this does not work when accessing the same machine (i.e. \\localhost\c$\path) as the "Administrators" group membership is still stripped from the token and a re-authentication (and thus the creation of a new token) would not happen when accessing localhost.

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• Workflow: suggest a versioning and file control for Designer and Developer

  - by Pennf0lio

  Our company are having hard time managing project files and managing versions of PSD, HTML, PHP, and CSS files. Can anyone recommend a good software or workflow to handle files and versions. Here's my common scenario: I work for a project in my computer, it could be a Website mockup or a coding project. I then save all the files locally in my workstation. I'll then upload all the project files in the server connected in our network to have a backup. In my files, I usually append a "r1" for revisions, like "WebsiteMockup_r1" or "WebsiteMockup_r2". I need somehow to synchronize all my local files to the server and have some versions options.

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• how to debug mysql has gone?

  - by fefe

  I have a virtual machine(Ubuntu 12.04, MySQL 5.5) running under VMware and is dedicated to host a mysql server. I connect to this server on internal IP. I'm trying to find out why I get mysql server has gone error. One my windows machines apache it stops because of this issue. I have been trying to fine tune my mysql my.cnf with the following parameters but did not bring the desired result. # Instead of skip-networking the default is now to listen only on # localhost which is more compatible and is not less secure. bind-address = 0.0.0.0 # # * Fine Tuning # wait_timeout = 180 key_buffer = 384M max_allowed_packet = 64M thread_stack = 192K thread_cache_size = 8 # This replaces the startup script and checks MyISAM tables if needed # the first time they are touched myisam-recover = BACKUP max_connections = 500 table_cache = 64 #thread_concurrency = 10 # # * Query Cache Configuration # query_cache_limit = 1M query_cache_size = 32M how to debug this issue what is missing from configuration to avoid this error?

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• LAMP: How do I set up http://myservername.com/~user access?

  - by Travesty3

  Been trying to Google this, but I can't figure out good search terms to find any info about what I need, since I don't really know what it's called. I'm pretty much being thrown to the wolves to figure out how to set up a LAMP server. We had someone who knew how to do it, he set one up and then quit. It was set up so that when I went to "http://{myservername}.com/~travis" it showed the contents of my /home/travis/public_html folder. This worked fine, then we lost power and the server restarted (I know, battery backup, but this is a dev server in a dev building so it's OK). Now, the browser can't find that URL. I also need to know how to set this up on a new server, so instead of wasting time diagnosing this problem (probably just something dumb I did messing with settings or something), I really need to know how to set this up from scratch. Thanks for taking the time to read this and (hopefully) answer!

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• Shrinking physical volumes in LVM on a Linux Guest in ESXi 5.0

  - by Stew

  The problem: Linux guest (OpenSuse 12.1), with multiple virtual disks attached. 3 disks are in a logical volume, two of which are exactly 2TB. None of the disks are independent, and due to the backup software we use, cannot be independent. When the two 2TB virtual disks are "dependent", the snapshot fails stating that the file is too large for the datastore. When I put those two disks in independent mode, snapshots work fine (the other disk is 1.8TB). I have therefore concluded that even shrinking the two physical disks by 100GB should solve the problem, however I am having trouble conceptualizing how to go about getting those disks smaller without breaking the LVM entirely. The actual LV has 1.3TB free, so there is plenty of space to shrink with. What I need to accomplish: Deallocate 100GB from the two, 2TB virtual disks within the linux guest. Shrink the two virtual disks by 100GB within vsphere (not as complicated). Are there any vsphere/LVM gurus that can give me a clue?

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• Can I import contacts from an Exchange 2003 EDB file for a single user?

  - by Drarok

  We have recently had to reinstall a very unhappy Exchange 2003 server for a client, and whilst rebuilding their server we moved them onto a temporary one. During the course of all this, ExMerge was used due to Windows being so broken that none of the backup software could run. As a number of the user mailboxes were way over 2GB, we had to do date ranges of a few months at a time to avoid ExMerge's 2GB limit. We went back as far as 2006, as the files produced by ExMerge seemed empty that far back. Unfortunately, one of the users has reported that around 2 3rds of their contacts are missing, and that pre-2006 sounds about right for the missing items. Is there any way I can mount the old EDB file into Exchange, or otherwise read their contacts into a usable format? The server is running Windows Server 2003 SBS R2 (SP2), and Exchance 2003 (SP2, I think).

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• Programs keep waiting for external disk to spin up - how to ignore disk?

  - by Andrew J. Brehm

  Like many Mac users I have an external Firewire disk hooked up to my Mac to be used by Time Machine. This works very well, backup-wise. The problem is that very often when I use a Mac application and try to open a file, the file selection dialogue window hangs until the external disk has spun up. I never ever want to open a file on the external disk. Sometimes this happens even when I just want to save a file I already saved (i.e. type something and press meta-s). Is there anything I can do about this?

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• Does anyone know why rsync would keep sending the files over and over again?

  - by beagleguy

  I'm trying to using rsync to backup some files, about half a TB. It's now it a state where it keeps sending the same files everytime it runs. for example: rsync -av /data/source/* user@host:/data/dest sending incremental file list source/file1.txt source/file2.txt I then verify those files are copied over... then the next time it runs it does the same thing rsync -av /data/source/* user@host:/data/dest sending incremental file list source/file1.txt source/file2.txt any idea why it's getting stuck on these files? I've tried to wipe the whole dest directory out and start over but no luck. thanks,

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• Windows 7 just restarts, no BSOD, shows "Event ID 14 volsnap"

  - by Mdc007

  My Windows 7 just restarts without giving me a BSOD. When it reboots, it will hang sometimes and you have to let it rest. Sometimes it will print a message saying that Hal.dll is missing or corrupt. When it does restart I can't run a backup or a clone drive – it comes up with constant errors. I tried to run chkdsk – it says everything's clean. What is really puzzling is SyncToy on a different drive hangs half way through and won't run either. Machine: OCZ SSD Agility 2 for C drive SATA HDD for programs, documents on D drive MSI AMD 880 chipset Event viewer says something about critical power failure I/O operations and "Event ID 14 volsnap" – but that is just telling me the computer powered off which I already know.

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• mounting vsphere 4.0 file system in ubuntu linux

  - by sravan

  hi all, I am using VSpere 4.0 for my project work. I needed 4-5 servers my project work which is based on Database. I felt the virtualisation is very good to get the 5 servers running good at the same time. It was running good until few days back. Yesterday, it suddenly crashed and i had no idea of the reason.Today, it did not even boot up. Now, i need to take the data backup from that system. In order to do the same, i got the hard drive from the machine and tried to mount it on local linux machine.But, i was not successful. The disk was not even recognized by the linux machine. Can some one please tell me how to mount it and get the required data? Thank you all

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• VMware Server guest systems are extremely slow with IO load on host (Ubuntu 8.04)

  - by Dennis G.

  We are experiencing performance issues with a VMware Server 2.x installation on an Ubuntu 8.04 host. When the host system is generating IO load (for example, copying large files as part of a backup operation), the guests (also Ubuntu 8.04) become extremely unresponsive and slow (simple Apache HTTP requests taking 5 seconds instead of the usual 200ms). We tried optimizing various aspects of the VMs, but the issue remains. Is there a known bug with VMware performance under linux if host IO load is high? Is there a way to fix this? Is this only an issue with Ubuntu systems, or have you seen it on other systems before? Thanks!

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• Deleting Time Machine in Mac OS X 10.6.4

  - by cappuccino

  Does anyone know how to delete Time Machine in Mac OS X 10.6.4? Before answering: sudo rm -rf /whateverthetimemachineis does not work Disabling the ACL permissions first with sudo fsaclctl -p /whatever -d does not work, sudo: fsaclctl: command not found Use the delete all backup feature in Time Machine... this is slow as hell, would take days. Need a command line solution. No I don't want to reformat the drive, I have other content on it, and no don't say I should have separated on two partition or two drives, I did it this say since partitions cannot be dynamically changed, and two drives is annoying since, whats the point of having a big drive?... plus has no relation to the issue at hand. Already googlied for hours and read everything on Super User, nothing working. and all solutions are the first 4. Any clues?

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• Optimal way to make MySQL backups for fairly large databases (MyISAM / InnoDB)

  - by WinkyWolly

  Currently we have one beefy MySQL database that runs a couple of high traffic Django based websites as well as some e-commerce websites of decent size. As a result we have a fair amount of large databases using both InnoDB and MyISAM tables. Unfortunately we've recently hit a wall due to the amount of traffic so I've setup another master server to help alleviate reads / backups. Now at the moment I simply use mysqldump with a few arguments and it's proven to be fine.. until now. Obviously mysqldump is a slow quick method however I believe we've outgrown its use. I now need a good alternative and have been looking into utilizing Maatkits mk-parallel-dump utility or an LVM snapshot solution. Succinct short version: I have a fairly large MySQL databases I need to backup Current method using mysqldump is inefficient and slow (causing issues) Looking into something such as mk-parallel-dump or LVM snapshots Any recommendations or ideas would be appreciated - since I have to re-do how we're doing things I rather have it done properly / most efficient :).

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• Dump nginx config from running process?

  - by Sergio Tulentsev

  Apparently, I shouldn't have spent sleepless night trying to debug an application. I wanted to restart my nginx and discovered that its config file is empty. I don't remember truncating it, but fat fingers and reduced attention probably played their part. I don't have backup of that config file. I know I should have made it. Good for me, current nginx daemon is still running. Is there a way to dump its configuration to a config file that it'll understand later?

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