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  • Formatting 1TB External Drive - Mac/PC

    - by The Woo
    We have 1 mac user in a PC environment... and I have bought a 1TB WD external hard drive and need to format it so that both PC and Mac can read/write to it. Doing this from the mac should be easy, but I do not know where to format the drive from, and what is the best option to format it to. Thanks.

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  • Windows 2003/IIS6 - Unexpected Error: C0000005

    - by Chirans
    Our event logs are full of these errors Unexpected error. A trappable error (C0000005) occurred in an external object. The script cannot continue running. We have tried in various ways but could not stop this error. After continuous errors, the IIS hangs up. We are also getting another error, Warning: IIS log failed to write entry. Please help me with the solution.

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  • How do you change topdir as a user in SSH?

    - by JM4
    I have read several places NEVER to build RPM's as the root user. As such, I defined a new user and have tried building out RPM structures there, however, using the rpmbuild --rebuild src.name.rpm returns an error which states the topdir cannot be accessed: Installing curl-7.20.1-1.src.rpm error: cannot write to %sourcedir /usr/src/redhat/SOURCES error: curl-7.20.1-1.src.rpm cannot be installed does anybody know how to make this change? I have a correct /src/ directory set up under the new user.

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  • When to use Bash, when Python/Perl/Ruby? [closed]

    - by futlib
    What's your rationale for when to write a Bash script and when to use a more powerful scripting language (Python, Perl, Ruby, ...)? I'm finding that very simple scripts are nicer with Bash, but many of those get quite fancy over time, and it never seems like a good idea to rewrite the whole thing. That's why I'm leaning towards always using Python for all scripting. But since Bash seems to be the the lingua franca of Linux scripting, is that something a responsible system administrator would do?

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  • Suggestions for splitting server roles amongst Hyper-V virtual servers / RAID6 or RAID10? / AppAssure

    - by Anon
    We have 2 Hyper-V hosts at present running 1 virtual server that was converted from a physical box running all roles. My plan is to split the roles over various virtual machines, upgrading to the latest software versions as I go, and use the backup server as a standby in case the main server fails. AppAssure backup software has a feature called Virtual Standby, so the VHD's can be ready to be fired up on the backup server if necessary. Off-site backups will be done via external USB drive for now. I'm just seeking some input/suggestions into how I'm planning to split the roles out amongst various virtual servers. Also, I'm curious how to setup the storage on the servers. We do not have any NAS's, SAN'S or any budget for this. What would the best RAID level be to use? I'm thinking either RAID6 (which is currently used) however I'm concerned about the write speeds, or RAID10 but again I'm worried that I can only lose 1 drive (from the same mirror) as opposed to any 2 with RAID6. I realise I have a hot swap for this, but what if a further drive fails during a rebuild? Is the write penalty of RAID6 worth the extra reliability over RAID10? Or will it be too slow with all the roles I am planning, therefore RAID10 is my only real option? The reason for the needed redundancy is I am the only technician and I'm not always on-site. Options I've considered: 1) 5 drives in RAID6 set, 200gb for host OS, rest for VM storage. 1 drive for hot swap - this is how it is currently setup 2) 4 drives in RAID10 set, 200gb for host OS, rest for VM storage. 2 drives for hot swap 3) 4 drives in RAID10 set for VM storage, 2 drives in RAID1 set for host OS. No drives for hot swap - While this is probably the best option with the amount of drives I have, I don't like the idea of having no hot swap 4) 3 drives in RAID6 set for VM storage, 2 drives in RAID1 set for host OS. 1 drive for hot swap All options give us enough storage capacity for our files, etc. We don't have any budget for extra drives or extra hot swap HD chassis for the servers. We have about 70 clients and about 150 users. MAIN SERVER Intel Xeon 5520 @ 2.27 GHz (2 processors) 16GB RAM 6 x 1TB Seagate Barracuda ES.2 Enterprise SATA drives Intel SRCSATAWB RAID controller Virtual machine workload using Hyper-V on Windows Server 2008 R2: DC01 - Active Directory Domain Controller / DNS server / Global catalog - 1GB RAM DC02 - Active Directory Domain Controller / DNS server / Global catalog - 1GB RAM Member Server - DHCP server, File server, Print server - 1GB RAM SCCM Member Server - 4GB RAM Third Party Software Member Server - A/V server, Ticketing software, etc - 4GB RAM Exchange 2007 - 4GB RAM - however we are probably migrating to a hosted solution, therefore freeing up resources BACKUP SERVER Intel Xeon E5410 @ 2.33GHz (2 processors) 16GB RAM 6 x 2TB WD RE4 SATA drives Intel SRCSASRB RAID controller Virtual machine workload using Hyper-V on Windows Server 2008 R2: AppAssure backup software - 8GB RAM

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  • Bash Shell Scripting - How to iterate through directories, and copy and rename files?

    - by Cypher
    I have a directory setup as follows: /hosted/partner1/logo.png /hosted/partner2/logo.png /hosted/partner3/logo.png /hosted/partner4/logo.png /hosted/partner5/logo.png ..etc. I want to write a script that can COPY those files to a different location, with a different file name, like this: /partners/partner1.png /partners/partner2.png /partners/partner3.png ..etc. Any ideas? I'm not so great with shell scripting and there are a lot of files that I need to migrate to a single directory...

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  • Deleting another user's diretories from my own

    - by kwatford
    I am a non-root user, and have made a directory into which other users in my group can write. The directory is setgid, so files and directories within it have the same group. I can delete files placed into this directory, but if a user creates a subdirectory with files in it, I can't seem to delete those. Is there something special I can do (other than, say, bothering the user in question or the sysadmin about it) to get rid of this subdirectory?

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  • Do Windows Vista/7 have memory protection?

    - by winnewb
    Is it possible for a program to access another program's memory directly and read from (or write to) it, or to "inherit" the old contents of memory reclaimed from another program? (ie if it doesn't zero out memory before using it and just reads from unitialized memory directly)

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  • file saving problem into the network

    - by santosh
    i have a problem when i save the office file in to the server through the client its show you it is read only file & also shows the disk is full or write protected what have to for this problem please give me the seggstion if have

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  • Drupal on an NFS share has terrible performance

    - by Marcus
    We have a setup where a Drupal 7 site with the following setup - a VMware ESXi 4.1 host server running a web vm and an NFS VM. The web VM is using Apache and mod_php. The site is still in development thus we have to turn off all forms of caching due to the frequently-updated files. Each page request takes around 15-20 seconds to complete. Profiling the PHP code shows that the vast majority of time (normally over 90%) is taking by all the is_dir(), is_file() function calls that load up the modules. I've increased PHP's realpath cache size to several megs and an strace shows that the lstat calls then drop from over 200 to around 6 and stat() decreases a bit (around 600 calls). However, while this has shaved off quite a bit of time, I am simply unable to break past the 10 second per request barrier. Is there a way to get better performance out of this setup that doesn't involve caching? Configs and stats: VMs: web - Centos 6 64bt, 2.5GB RAM, normal CPU/HD prioritisation nfs - Centos 6 64bt, 2GB RAM, normal CPU priority, high HD priority PHP: 32M realpath cache size (it's this high for testing purposes) NFS: ~]# egrep -v '#|^$' /etc/nfsmount.conf [ NFSMount_Global_Options ] Defaultvers=4 Ac=False Rsize=32k Wsize=32k Bsize=32k Reading speeds via NFS are not an issue a dd of a 100M test file using 32k blocks returns: 3200+0 records in 3200+0 records out 104857600 bytes (105 MB) copied, 1.84984 s, 56.7 MB/s real 0m1.857s user 0m0.007s sys 0m0.330s Strace on Apache process with empty realpath cache: % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 50.78 1.157452 337 3434 28 stat 32.58 0.742656 628 1182 425 open 9.29 0.211788 762 278 1 lstat 3.17 0.072322 0 237865 write 2.45 0.055839 490 114 13 access 0.45 0.010262 43 237 brk 0.34 0.007725 10 811 74 read 0.28 0.006340 9 679 fstat 0.22 0.005069 18 281 poll 0.20 0.004533 6 698 getdents 0.09 0.001960 10 190 mmap 0.05 0.001065 14 74 accept4 0.04 0.001000 333 3 chdir 0.03 0.000750 4 190 munmap 0.01 0.000339 0 836 close 0.01 0.000247 3 75 writev 0.00 0.000068 0 611 fcntl 0.00 0.000063 1 77 shutdown 0.00 0.000000 0 1 lseek 0.00 0.000000 0 5 rt_sigaction 0.00 0.000000 0 1 rt_sigprocmask 0.00 0.000000 0 3 setitimer 0.00 0.000000 0 5 socket 0.00 0.000000 0 5 5 connect 0.00 0.000000 0 74 getsockname 0.00 0.000000 0 15 setsockopt 0.00 0.000000 0 5 getcwd 0.00 0.000000 0 1 futex ------ ----------- ----------- --------- --------- ---------------- Strace after realpaths are cached % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 60.14 1.371006 484 2831 28 stat 31.79 0.724705 627 1155 425 open 3.53 0.080354 0 237865 write 2.65 0.060433 530 114 13 access 0.43 0.009913 99 100 brk 0.38 0.008730 11 804 74 read 0.35 0.007910 12 675 fstat 0.30 0.006775 10 654 getdents 0.13 0.003065 11 281 poll 0.09 0.002000 333 6 1 lstat 0.07 0.001545 2 807 close 0.05 0.001063 14 74 accept4 0.04 0.001000 6 179 mmap 0.02 0.000404 2 179 munmap 0.01 0.000271 4 75 writev 0.01 0.000212 0 611 fcntl 0.01 0.000129 2 77 shutdown 0.00 0.000022 0 74 getsockname 0.00 0.000000 0 1 lseek 0.00 0.000000 0 5 rt_sigaction 0.00 0.000000 0 1 rt_sigprocmask 0.00 0.000000 0 3 setitimer 0.00 0.000000 0 3 socket 0.00 0.000000 0 3 3 connect 0.00 0.000000 0 15 setsockopt 0.00 0.000000 0 5 getcwd 0.00 0.000000 0 3 chdir ------ ----------- ----------- --------- --------- ---------------- Mount: nfs.xxx.xxx.xxx:/path/to/website/files on /path/to/website/files type nfs (rw,hard,intr,noac,vers=4,addr=xx.xx.xx.xx,clientaddr=xx.xx.xx.xx) Any help is, naturally, appreciated.

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  • Concurrent NFS access

    - by Kristian
    Similar to Concurrent FTP access. How is concurrent file access handled for NFS? Say that one client is updating/overwriting a file on a NFS server, and a process on the server is reading that same file directly from the file system at the same time. Is there some sort of atomic handling of file read/write in NFS/Linux or do I have to work with tmp files to ensure data consistency? I'm worried that the process reading the file will get corrupt data.

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  • Feed aggregator with E-mail/RSS channels

    - by Toc
    Which feed aggregators, besides FriendFeed, allow RSS and e-mail as input and output channels? That is, allow to suscribe external RSS feeds and to write a post by e-mail, and allow to be notified both by RSS feed and by e-mail?

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  • What is the state of ext3 support in Mac OS X 10.6? [closed]

    - by gzuki
    Possible Duplicate: Mount ext2/ext3 in Mac OS X Snow Leopard I have a 1tb hard drive, I want it to have one partition that can serve as an interchange between linux (ubuntu) and mac (snow leopard). HFS+ scares me a bit, and I can't seem to get a clear picture on whether or not something like fuse can reliably write ext3 partitions in mac. Any good advice on this topic? Should I just pick HFS+ or ext3 and hope for the best (or just deal with only getting read-only on one OS)?

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  • Sending a UDP message to a computer inside a network

    - by Dan
    Say I have the ip and mac address of a computer inside a network and I wish to send him a UDP message. By initializing the mac and ip addresses of the sent message to the given, when the network router recives the message he should pass it to the computer with the same mac address...right? Im asking becuase a program I write dosent seem to handle this limitation. it works great when its on the same network, but otherwise ...nada. Thanks

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  • How do I create a bridged virtual network for libvirt+KVM+ubuntu-server the easy way?

    - by Arthur Ulfeldt
    I see lots of documentation on how to manually set up a network bridge and then manually add vm's tun devices to these bridges and then write a shell script that glues it all together. lots of work, very manual, and not impressive. On the other hand if you want to use NAT to KVM+libvirt VMs to the network you just click the new network button in the virt-manager gui and relax. Am I missing "the easy way" of causing a VM to share the physical network with the host?

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  • what's the hostname/domain when installing freebsd

    - by Omu
    I am trying to install FreeBSD using vmware workstation I get to a screen where I have to configure the DHCP (some values are set automatically cuz I've set to configure DHCP auto in options) but the hostname is empty and domainname is .localdomain, what values should I write in there

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  • Install SFTP on Debian Lenny use root user to login

    - by user272899
    I am new to linux. I have a server that I have successfully installed Debian Lenny on and everything else needed for a LAMP server. But I am unsure how to setup FTP. My first attempt went horribly wrong had a load of permission issues. How can I give full read/write access to my WWW folder. The more in-depth the answer the better. I feel like such a noob.

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  • more than one start statment in the same bash ?

    - by Mohammad AL-Rawabdeh
    i write the following bash file :- start D:\folder1\bin\run.bat start D:\folder2\bin\run.bat start D:\folder3\bin\run.bat start D:\folder4\bin\run.bat but it is execute the first start but give me the following error:- windows cannot find " D:\folder2\bin" Make sure you type the name correctly, and then try again. To search for a file, click the start button,and then click search *Note :- I'm sure spelling correct and i'am put start D:\folder2\bin\run.bat in other file and it is execute correctly

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  • Regarding Unix Move Command

    - by user38993
    I need to write an Unix Shell Script tran.sh that moves the csv input files from /exp/files folder to /exp/ready directory. The csv input files are written to /exp/files folder by an FTP server whose behavior I cannot trivially change. In tran.sh shell script I need to ensure before doing a move of that csv input file from /exp/files directory no longer any other process is writing to the file. How can I do it.

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  • Apache ignore my .htaccess 'dontlog' option

    - by Emilio
    I wrote .htaccess in file dir/subdir to don't log URI requests in this particular directory. The .htaccess is actually executed by apache (if i write deny from , it works), but if the file contains only this rule: SetEnvIf Request_URI "^dir/subdir" dontlog Don't work. AllowOverride All and mod_rewrite are enabled. What can be the problem? Sorry for my bad english.

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