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  • ZFS - zpool ARC cache plus L2ARC benchmarking

    - by jemmille
    I have been doing lots of I/O testing on a ZFS system I will eventually use to serve virtual machines. I thought I would try adding SSD's for use as cache to see how much faster I can get the read speed. I also have 24GB of RAM in the machine that acts as ARC. vol0 is 6.4TB and the cache disks are 60GB SSD's. The zvol is as follows: pool: vol0 state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM vol0 ONLINE 0 0 0 c1t8d0 ONLINE 0 0 0 cache c3t5001517958D80533d0 ONLINE 0 0 0 c3t5001517959092566d0 ONLINE 0 0 0 The issue is I'm not seeing any difference with the SSD's installed. I've tried bonnie++ benchmarks and some simple dd commands to write a file then read the file. I have run benchmarks before and after adding the SSD's. I've ensured the file sizes are at least double my RAM so there is no way it can all get cached locally. Am I missing something here? When am I going to see benefits of having all that cache? Am I simply not under these circumstances? Are the benchmark programs not good for testing the effect of cache because of the the way (and what) it writes and reads?

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  • MySQL tmpdir on /dev/shm with SELinux

    - by smorfnip
    On RHEL5, I have a small MySQL database that has to write temp files. To speed up this process, I would like to move the temporary directory to /dev/shm by putting the following line into my.cnf: tmpdir=/dev/shm/mysqltmp I can create /dev/shm/mysqltmp just fine and do chown mysql:mysql /dev/shm/mysqltmp chcon --reference /tmp/ /dev/shm/mysqltmp I've tried to make SELinux happy by applying the same settings that are in effect for /tmp/ (and /var/tmp/), which is presumably where MySQL is writing its tmp files if tmpdir is undefined. The problem is that SELinux complains about MySQL having access to that directory. I get the following in /var/log/messages: SELinux is preventing mysqld (mysqld_t) "getattr" to /dev/shm (tmpfs_t). SELinux is a hard mistress. Details: Source Context root:system_r:mysqld_t Target Context system_u:object_r:tmpfs_t Target Objects /dev/shm [ dir ] Source mysqld Source Path /usr/libexec/mysqld Port <Unknown> Host db.example.com Source RPM Packages mysql-server-5.0.77-3.el5 Target RPM Packages Policy RPM selinux-policy-2.4.6-255.el5_4.1 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name catchall_file Host Name db.example.com Platform Linux db.example.com 2.6.18-164.2.1.el5 #1 SMP Mon Sep 21 04:37:42 EDT 2009 x86_64 x86_64 Alert Count 46 First Seen Wed Nov 4 14:23:48 2009 Last Seen Thu Nov 5 09:46:00 2009 Local ID e746d880-18f6-43c1-b522-a8c0508a1775 ls -lZ /dev/shm shows drwxrwxr-x mysql mysql system_u:object_r:tmp_t mysqltmp and permissions for /dev/shm itself are drwxrwxrwt root root system_u:object_r:tmpfs_t shm I've also tried chcon -R -t mysqld_t /dev/shm/mysqltmp and setting the group on /dev/shm to mysql with no better results. Shouldn't it be enough to tell SELinux, hey, this is a temp directory just like MySQL was using before? Short of turning off SELinux, how do I make this work? Do I need to edit SELinux policy files?

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  • what can be causes of http server crash?

    - by mithunmo
    Hello , I am using WAMP server on Windows XP. Apache 2.2.11 MySQL 5.1.36 (INNODB engine) PHP 5.3.0 I observe that my WAMP server crashes in the following scenarios IF I use a Low end PC ( low processor speed and low RAM) After making some changes to httpd.conf file .For eg changing the Allow from IP address . But here it crashes only once and then it starts to work fine. Random crashes CRASH LOG szAppName : httpd.exe szAppVer : 2.2.11.0 szModName : php5ts.dll szModVer : 5.3.0.0 offset : 0000c309 C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\httpd.exe.mdmp C:\DOCUME~1\blrcom\LOCALS~1\Temp\WERc677.dir00\appcompat.txt My questions Does high CPU utilization/LOW RAM can also cause the HTTP server to crash ? excessive file reading as in every 10 seconds ? unlimited script execution time . I have set the maximum execution time in php script to 0 as my script has to execute for sometimes 2-3 days. Is there any way to avoid this ? Access to Database ? Should we use lock before reading and writing Can these be the reasons for random wamp server crashes ? OR is is some other programming error ? Please guide me . Regards, Mithun

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  • CD and DVD burning very slow with LG DVD Burner

    - by Om Nom Nom
    I have an HP m7560in Desktop which came with an LG DVD burner. As far back as I can remember, it has been having problems in burning discs. It used to take about one and a half hour to burn 4 GB of data on a blank DVD-R. I am using Nero and ImgBurn and I usually select 8x speed for burning. I used to run XP earlier and now I run Windows 7 on it, but I face the problem on both. I have already checked that DMA mode is selected in the IDE controllers' properties. On XP, uninstalling the IDE controllers and DVD drive from the Device Manager, rebooting and letting it install the drivers again fixed the problem for a while, but after a couple reboots, the problem used to come back. On Windows 7, even doing that is not fixing the problem. In fact, in Windows 7, the burning process doesn't even begin. Imgburn gets stuck on the first stage (of writing Lead-In), and it never progresses until I turn off / reset the computer. I checked the disc info after this happened, and the disc still shows empty and ready to be burned on, so it's obvious that it didn't even touch the disc. I have already had the drive replaced once by HP, but it didn't fix the problem. Do you guys have any suggestions? (Note that Windows Updates doesn't give any newer driver for the controllers, or any other components for that matter).

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  • cyrus-sasl-lib issue on CentOS 5.3 (while installing GUI)

    - by sxanness
    I am attempting to install gnome on a CentOS 5.3 Server install so that I can speed up the process that I am working on. I ran a yum groupinstall for the x window system and gnome but I keep getting the following error. Package cyrus-sasl-plain needs cyrus-sasl-lib = 2.1.22-4, this is not available. Package cyrus-sasl needs cyrus-sasl-lib = 2.1.22-4, this is not available. Package cyrus-sasl-plain needs cyrus-sasl-lib = 2.1.22-4, this is not available. Package cyrus-sasl needs cyrus-sasl-lib = 2.1.22-4, this is not available. Complete! First thing I checked was what version of the cyrus-sasl-lib I had installed. Installed Packages cyrus-sasl-lib.i386 2.1.22-4 installed cyrus-sasl-lib.x86_64 2.1.22-4 installed Available Packages cyrus-sasl-lib.x86_64 2.1.22-5.el5 base cyrus-sasl-lib.i386 2.1.22-5.el5 base Anyhow know how I can get around this and install the stuff I need so that I can start a GUI on this machine? Thanks in advance

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  • Help building maya render node spec

    - by Ak
    Hi there, I'm looking to build 4x Maya render slaves/nodes for a friend of mine when his project gets green lit. The project involves MentalRay and lots of glass. I'm unsure if the new i7's 9xx or 8xx with hyper threading will do any better than a core 2 quad of the same (or close enough) speed. Does hyper threading make a difference to Maya or is it more performance per core based? I'm sure he's prefer I'd build another render node than pay for a bleeding edge CPU that only adds fractionly more GHz. -- The rest of the spec so far: 4Gb - 8Gb ram 64 bit OS: Probably Windows 7 (I know Linux is free, but want to build something my friend can support himself as easily as he supports his own workstation) 1TB HDD to hold textures, Maya files and renders which will be copied to central storage later Mobo with on-board video, gigabit NIC 500 - 650 watt PSU Desktop case something like a: Cooler Master ATCS 840 The machines will sold afterwards if necessary. -- If anyone has had experience in Maya and has done any tests with the new CPUs vs. the older ones I'd really appreciate your input.

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  • How can I calculate power consumption of my PC in Watt?

    - by Jitendra vyas
    How can I calculate power consumption of my PC in Watt, to prove my House owner ( I live on rent) , my PC doesn't consume much power? He blames me for Huge power bills even he too use Fridge, A.C. etc and his son watch the TV all the time. We both share one Power meter so for bill we pay 50%-50% but He is saying I use PC all the time even night i keep on for downloading. I just want to calculate power consumption of my PC then will calculate monthly expense of unit as per my City's per unit price for power. I've Windows: Microsoft Windows XP Professional 5.1.2600 Service Pack 3 Memory (RAM): 960 MB CPU Info: AMD Sempron(tm) Processor 2500+ CPU Speed: 1399.0 MHz Sound card: Vinyl AC'97 Audio (WAVE) Display Adapters: VIA/S3G UniChrome Pro IGP | NetMeeting driver | RDPDD Chained DD Monitors: 1 - 17inch LCD - LG Screen Resolution: 1280 X 768 - 32 bit Network: Network Present Network Adapters: Bluetooth Device (Personal Area Network) #2 | WAN (PPP/SLIP) Interface CD / DVD Drives: I: ELBY CLONEDRIVE COM Ports: COM1 | COM2 | COM7 | COM8 | COM9 | COM10 LPT Ports: LPT1 Mouse: 3 Button Wheel Mouse Present Hard Disks: C: 29.3GB | D: 29.3GB | E: 97.7GB | F: 97.7GB | G: 211.9GB USB Controllers: 5 host controllers. Firewire (1394): 1 host controllers. Manufacturer: Phoenix Technologies, LTD Product Make: MS-7142 AC Power Status: OnLine BIOS Info: AT/AT COMPATIBLE | 01/18/06 | VIAK8M - 42302e31 Motherboard: MICRO-STAR INTERNATIONAL CO., LTD MS-7142 Modem: ZTE USB Modem FFFE CDMA #2

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  • Best Firewall product for hosting/housing environment?

    - by Raffael Luthiger
    I am searching for a firewall product (appliance or software) for an hosting/housing environment. The biggest problem is that the rules get very complex as more customers are behind the firewall. Some have only one server, others have a whole subnet. Some need NAT, some a VPN endpoint. Some customers want to only allow port http, others ssh as well. So the device needs to be able to support VLANs and it should be possible to group the rules per customer. Speed is another important point. And being able to manage redundant devices easily. I am searching for something that doesn't have all the extras like spam filter etc. I was searching a lot on the net but either they had all those extras as well (and with is an overloaded configuration interface) or they missed some of the features I need (e.g. VLAN). The VPN endpoint is not the an important criteria. We were thinking about a separate machine for it.

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  • Macbook Pro 2010 Ethernet Jumbo Frame(9k MTU) Support?

    - by Troggy
    Has anyone been able to use jumbo frame support on their 2010 Macbook Pros? This is kind of negative news here, but I am seeing many reports that this is not available anymore due to Apple's choice of network card in the new machines. I cannot set my MTU speed over 1500 on my new 2010 MBP i7, but my old early 2008 MBP (Core2) has the 9000 MTU setting for use. Everything I have is setup to use jumbo frames and I thought apple kept that feature in their "pro" lineup. It sounds like the Mac Pro still has it. Did they decide to use a chipset that doesn't support it? I am trying to pinpoint some solid chipset numbers and the feature support. Maybe they just need to update the drivers? Is there some more official information about this feature? This might seem minor, but this is really frustrating if apple removed this feature from their pro laptop line. From what I have read so far, it sounds like I am not alone in my frustrations with this. http://discussions.info.apple.com/message.jspa?messageID=12258067 http://discussions.apple.com/thread.jspa?messageID=12130158 Anyone have any experience or further knowledge about this issue ... beyond typing my question into google and giving the top 5 results as answers? :)

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  • Disabling mouse acceleration in Mac OS X

    - by aib
    I've been looking for a solution to the unusable mouse problem in Mac OS X for ages. I've tried a gazillion programs and fiddled with every setting there is or there can be added. So far, I haven't found a way to get linear mouse response in Mac OS X. At this point I'm seriously considering installing another operating system. But before I do that, or go hacking around OS binaries, maybe someone here has a solution? I want linear mouse response. I want high sensitivity. I like my touchpad acceleration and would like to keep it if possible. Any ideas? P.S. I've been at this for a long time, I'll probably have already tried the most popular answers. I'm running Mac OS X 10.6.5 on a MacBook Pro. I don't use a particular brand of mouse. I'm not looking for any commercial solutions. I've tried: Mouse Acceleration Preferences Pane, the Snow Leopard version of which can get me close to a linear response, but at the cost of tracking speed (sensitivity). Answers on this question: Make Mac OS X mouse acceleration more Windows-like About every code snippet I found via Google.

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  • Postfix - Gmail - Mountain Lion // can't send mail

    - by miako
    I have read most of the tutorials found on google but still can't make it work. I run the command : date | mail -s "Test" [email protected] . The log is this : Oct 22 11:38:00 XXX.local postfix/master[288]: daemon started -- version 2.9.2, configuration /etc/postfix Oct 22 11:38:00 XXX.local postfix/pickup[289]: 9D85418A031: uid=501 from=<me> Oct 22 11:38:00 XXX.local postfix/cleanup[291]: 9D85418A031: message-id=<[email protected]> Oct 22 11:38:00 XXX.local postfix/qmgr[290]: 9D85418A031: from=<[email protected]>, size=327, nrcpt=1 (queue active) Oct 22 11:38:00 XXX.local postfix/smtp[293]: initializing the client-side TLS engine Oct 22 11:38:02 XXX.local postfix/smtp[293]: setting up TLS connection to smtp.gmail.com[173.194.70.109]:587 Oct 22 11:38:02 XXX.local postfix/smtp[293]: smtp.gmail.com[173.194.70.109]:587: TLS cipher list "ALL:!EXPORT:!LOW:+RC4:@STRENGTH:!eNULL" Oct 22 11:38:02 XXX.local postfix/smtp[293]: SSL_connect:before/connect initialization Oct 22 11:38:02 XXX.local postfix/smtp[293]: SSL_connect:SSLv2/v3 write client hello A Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 read server hello A Oct 22 11:38:03 XXX.local postfix/smtp[293]: smtp.gmail.com[173.194.70.109]:587: certificate verification depth=2 verify=0 subject=/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA Oct 22 11:38:03 --- last message repeated 1 time --- Oct 22 11:38:03 XXX.local postfix/smtp[293]: smtp.gmail.com[173.194.70.109]:587: certificate verification depth=1 verify=1 subject=/C=US/O=Google Inc/CN=Google Internet Authority G2 Oct 22 11:38:03 XXX.local postfix/smtp[293]: smtp.gmail.com[173.194.70.109]:587: certificate verification depth=0 verify=1 subject=/C=US/ST=California/L=Mountain View/O=Google Inc/CN=smtp.gmail.com Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 read server certificate A Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 read server done A Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 write client key exchange A Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 write change cipher spec A Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 write finished A Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 flush data Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 read server session ticket A Oct 22 11:38:03 XXX.local postfix/smtp[293]: SSL_connect:SSLv3 read finished A Oct 22 11:38:03 XXX.local postfix/smtp[293]: smtp.gmail.com[173.194.70.109]:587: subject_CN=smtp.gmail.com, issuer_CN=Google Internet Authority G2, fingerprint E4:CA:10:85:C3:53:00:E6:A1:D2:AC:C4:35:E4:A2:10, pkey_fingerprint=D6:06:2E:15:AF:DF:E9:50:A5:B4:E2:E4:C5:2E:F9:BA Oct 22 11:38:03 XXX.local postfix/smtp[293]: Untrusted TLS connection established to smtp.gmail.com[173.194.70.109]:587: TLSv1 with cipher RC4-SHA (128/128 bits) Oct 22 11:38:03 XXX.local postfix/smtp[293]: 9D85418A031: to=<[email protected]>, relay=smtp.gmail.com[173.194.70.109]:587, delay=3.4, delays=0.26/0.13/2.8/0.26, dsn=5.5.1, status=bounced (host smtp.gmail.com[173.194.70.109] said: 530-5.5.1 Authentication Required. Learn more at 530 5.5.1 http://support.google.com/mail/bin/answer.py?answer=14257 s3sm54097220eeo.3 - gsmtp (in reply to MAIL FROM command)) Oct 22 11:38:04 XXX.local postfix/cleanup[291]: D4D2F18A03C: message-id=<[email protected]> Oct 22 11:38:04 XXX.local postfix/qmgr[290]: D4D2F18A03C: from=<>, size=2382, nrcpt=1 (queue active) Oct 22 11:38:04 XXX.local postfix/bounce[297]: 9D85418A031: sender non-delivery notification: D4D2F18A03C Oct 22 11:38:04 XXX.local postfix/qmgr[290]: 9D85418A031: removed Oct 22 11:38:04 XXX.local postfix/local[298]: D4D2F18A03C: to=<[email protected]>, relay=local, delay=0.11, delays=0/0.08/0/0.02, dsn=2.0.0, status=sent (delivered to mailbox) Oct 22 11:38:04 XXX.local postfix/qmgr[290]: D4D2F18A03C: removed Oct 22 11:39:00 XXX.local postfix/master[288]: master exit time has arrived I am really confused as i have never setup MTA again an i need it for local web development. I don't use XAMPP. I use the built in Servers. Can anyone guide me?

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  • Bash script 'while read' loop causes 'broken pipe' error when run with GNU Parallel

    - by Joe White
    According to the GNU Parallel mailing list this is not a GNU Parallel-specific problem. They suggested that I post my problem here. The error I'm getting is a "broken pipe" error, but I feel I should first explain the context of my problem and what causes this error. It happens when trying to use any bash script containing a 'while read' loop in GNU Parallel. I have a basic bash script like this: #!/bin/bash # linkcheck.sh while read domain do host "$domain" done Assume that I want to pipe in a large list (250mb say). cat urllist | ./linkcheck.sh Running host command on 250mb worth of URLs is rather slow. To speed things up I want to break up the input into chunks before piping it and then run multiple jobs in parallel. GNU Parallel is capable of doing this. cat urllist | parallel --pipe -j0 parallel ./linkcheck.sh {} {} is substituted by the contents of urllist line-by-line. Assume that my systems default setup is capable of running 500ish jobs per instance of parallel. To get round this limitation we can parallelize Parallel itself: cat urllist | parallel -j10 --pipe parallel -j0 ./linkcheck.sh {} This will run 5000'ish jobs. It will also, sadly, cause the error "broken pipe" (bash FAQ). Yet the script starts to work if I remove the while read loop and take input directly from whatever is fed into {} e.g., #!/bin/bash # linkchecker.sh domain="$1" host "$1" Why will it not work with a while read loop? Is it safe to just turn off the SIGPIPE signal to stop the "broken pipe" message, or will that have side effects such as data corruption? Thanks for reading.

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  • How powerful of a PC do you need to edit HD videos?

    - by Xeoncross
    I have a Core2Quad Q8200 (2.3GHz) with 4GB of RAM, a 512MB PCIe video card, and a SATA-2 HD. Yet it still isn't fast enough to edit 720i/p video in Sony Vegas or Adobe Premiere/Aftereffects. My RAM usage never peaks over 1.6GB, but my CPU cores make it to 95% quick! Right now the preview panes in all these programs lag to bad to actually work on the videos. I get to see 1-3 frames every second or two! So how fast do I have to go? At what point will my CPU be fast enough to actually edit these videos? I have to assume that regular people and their regular sub $2k computers can actually work with this footage. Another way to answer this is, how fast is the PC you used to edit videos? Update: I'ts worth noting that now that I have Adobe Pre/AF CS4 I am more interested in getting that working than my older Vegas 6. If you didn't have to re-run RAM preview every, single, time you made one change it would be my answer. But since I like to test many filters and effects before choosing one - I have to re-render a 1-sec section of footage over-and-over and it drives me nuts waiting. Perhaps a motherboard with Dual Xeon chips or something would be able to handle this. It would probably be as much as a dual-crossfire setup and would also speed up other applications.

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  • Time drift in Cloud Server - need to mainpulate GRUB config

    - by Aditya Advani
    We are hosting a VPS on a popular host and are experiencing a regular time drift of several minutes a day forward (approx 7). Linux Kernel: 2.6.18-164.11.1.el5 GNU/Linux Distro: CentOS release 5.4 (Final) We reached out to our hosting provider and their support advised us " This is a known issue with Cloud Servers. To fix this you will need to add one line to your grub config located at: /boot/grub/menu.lst The line you need to add is: noapic nolapic divider=10 nolapic_timer This should correct this issue. You will need to restart after this is added in. " Because I am wary of manipulating grub, mostly I'm terrified that our server may fail to restart - I ask you guys, the pro *nix admins - where exactly in this file does the recommended insertion below: # line from 1&1 for time syncing issue (Case 5163) noapic nolapic divider=10 nolapic_timer go? Please specify where exactly, and whether the order of commands is or is not important. Why is the block below "title CentOS ..." indented? If someone could give me an overview of how this works or point me to a resource that's easy to follow, that's what I'm looking for immediately, a light overview or basic understanding of what I;m doing. If GRUB and bootloaders are a deep dark treasure trove of kernel hacking or something, that's great well-recommended in-depth resources are also very welcome. This is my current /boot/grub/menu.lst # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file #boot=/dev/sda # serial --unit=0 --speed=57600 terminal --timeout=5 serial console timeout=5 title CentOS (2.6.18-164.11.1.el5) root (hd0,0) kernel /boot/vmlinuz-2.6.18-164.11.1.el5 ro root=/dev/hda1 console=tty0 console=tty initrd /boot/initrd-2.6.18-164.11.1.el5.img MOST IMPORTANT: I need to know where in the file above it is appropriate to paste the suggested line so I can confidently restart my VPS after manipulating GRUB config

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  • Computer specs for a large database

    - by SpeksETC
    What sort of computer specs (CPU, RAM, disk speed) should I use for running queries on a database of 200+ million records? The queries are for a research project, so there is only one "user" and only one query will be running at a time. I tried it on my own laptop with SQL Server with an i3 processor, 2GB RAM, 5400 RPM disk and a simple query didn't finish even after 8+ hours. I have an option to connect a SSD via eSata and upgrade to 4GB RAM, but not sure if this will be enough... Thanks! Edit: The database is about 25 GB and the indexes are not setup properly. When I tried to add an index, I let it run for about 8 hours and it still hadn't finished so I gave up. Should I have more patience :)? In general, the queries will run once in a while and its ok even if it takes a couple hours to complete.... Also, the queries will produce probably about 10 million records which I need to process using Stata/Matlab and I'm concerned that my current laptop is not strong enough, but unsure of the bottleneck....

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  • Windows Server 2003 RDP not listening on IPv6

    - by Ian Boyd
    i have a Windows Server 2003 machine; with IPv6 enabled: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : newland.local IP Address. . . . . . . . . . . . : 192.168.1.244 Subnet Mask . . . . . . . . . . . : 255.255.0.0 IP Address. . . . . . . . . . . . : 2001:470:¦¦¦¦:¦¦¦¦:¦¦¦:¦¦¦¦:¦¦¦¦:¦¦¦¦ IP Address. . . . . . . . . . . . : fe80::224:1dff:fe86:fdf2%4 Default Gateway . . . . . . . . . : 192.168.1.1 fe80::250:bfff:fe91:955f%4 i can connect to IIS server using IPv, remotely and locally, using IPv4 and IPv6: > telnet 127.0.0.1 80 (connects) > telnet 192.168.1.244 80 (connects) > telnet ::1 80 (connects) > telnet fe80::224:1dff:fe86:fdf2 80 (connects) And TCPView shows that the server is listening on port 80: Note: This is useful to establish that Windows Server 2003 does have support for IPv6 services. And i can connect to terminal services, locally and remotely, using IPv4: > telnet 127.0.0.1 3389 (connects) > telnet 192.168.1.244 3389 (connects) But i cannot connect to RDP, locally or remotely, over IPv6: > telnet ::1 3389 (fails to connect) > telnet fe80::224:1dff:fe86:fdf2 3389 (fails to connect) We can see that the system is listening on 3389: Except why won't it listen on port 3389 (ipv6)? Unfortunately it's not the firewall. Aside from the fact that i'm connecting locally (in which case the firewall doesn't apply), the firewall doesn't apply:

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  • RDP problem with Vista and Windows 7 destination

    - by MadBison
    I use a server a home to host a bunch of concurrently running Hyper-V VM's with different OS's and software for testing. I have Vista on the laptop, all latest SP's and patches. The server is Server 2008 R2, fully patched. The guests are a mix of XP, Vista, Server 2008 and Windows 7. If I connect to the Win XP or Server 2008 guest using RDP, it is always good. Very quick, no speed issues. If I connect to the Vista or Win 7 guests, the response time is so slow it is unusable. Usually 6 or 8 seconds, and at times it is to long to measure! This happens from both the laptop running Vista, and the server running Server 2008 R2. Does anyone know what the issue is with RDP on Vista and Windows 7 destinations? I did read this: http://blog.tmcnet.com/blog/tom-keating/microsoft/remote-desktop-slow-problem-solved.asp and that is not the problem I have applied that change to all PC's.

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  • Extreme headache from ASSP Extreme Ban

    - by Chase Florell
    I've got a local user on my server that as of today cannot send email from any of their devices. Only Webmail (which doesn't touch any of their devices) works. Here are the various email failures I'm receiving in the logs. Dec-04-12 19:52:47 75966-05166 [SpoofedSender] 111.111.111.111 <[email protected]> to: [email protected] [scoring:20] -- No Spoofing Allowed -- [Test]; Dec-04-12 19:52:47 75966-05166 [Extreme] 111.111.111.111 <[email protected]> to: [email protected] [spam found] -- score for 111.111.111.111 is 1980, surpassing extreme level of 500 -- [Test] -> spam/Test__1.eml; Dec-04-12 19:52:48 75968-05169 111.111.111.111 <[email protected]> to: [email protected] [scoring:10] -- IP in HELO does not match connection: '[192.168.0.10]' -- [Re Demo Feedbacks for End of November Sales]; Dec-04-12 19:52:48 75968-05169 [SpoofedSender] 111.111.111.111 <[email protected]> to: [email protected] [scoring:20] -- No Spoofing Allowed -- [Re Demo Feedbacks for End of November Sales]; Dec-04-12 19:52:48 75968-05169 [Extreme] 111.111.111.111 <[email protected]> to: [email protected] [spam found] -- score for 111.111.111.111 is 2020, surpassing extreme level of 500 -- [Re Demo Feedbacks for End of November Sales] ->spam/Re_Demo_Feedbacks_for_End_of_N__2.eml; Dec-04-12 19:52:57 75977-05179 [SpoofedSender] 111.111.111.111 <[email protected]> to: [email protected] [scoring:20] -- No Spoofing Allowed -- [test]; Dec-04-12 19:52:57 75977-05179 [Extreme] 111.111.111.111 <[email protected]> to: [email protected] [spam found] -- score for 111.111.111.111 is 2040, surpassing extreme level of 500 -- [test] -> spam/test__3.eml; ……………. Dec-04-12 19:55:35 76135-05338 [SpoofedSender] 111.111.111.111 <[email protected]> to: [email protected] [scoring:20] -- No Spoofing Allowed -- [test]; Dec-04-12 19:55:35 76135-05338 [MsgID] 111.111.111.111 <[email protected]> to: [email protected] [scoring] (Message-ID not valid: 'E8472A91545B44FBAE413F6D8760C7C3@bts'); Dec-04-12 19:55:35 76135-05338 [InvalidHELO] 111.111.111.111 <[email protected]> to: [email protected] [spam found] -- Invalid HELO: 'bts' -- [test] -> discarded/test__4.eml; note: 111.111.111.111 is a replacement for the users home IP address Here is the headers of one of the messages X-Assp-Score: 10 (HELO contains IP: '[192.168.0.10]') X-Assp-Score: 10 (IP in HELO does not match connection: '[192.168.0.10]') X-Assp-Score: 20 (No Spoofing Allowed) X-Assp-Score: 10 (bombSubjectRe: 'sale') X-Assp-Score: 20 (blacklisted HELO '[192.168.0.10]') X-Assp-Score: 45 (DNSBLcache: failed, 111.111.111.111 listed in safe.dnsbl.sorbs.net) X-Assp-DNSBLcache: failed, 174.0.35.31 listed in safe.dnsbl.sorbs.net X-Assp-Received-SPF: fail (cache) ip=174.0.35.31 [email protected] helo=[192.168.0.10] X-Assp-Score: 10 (SPF fail) X-Assp-Envelope-From: [email protected] X-Assp-Intended-For: [email protected] X-Assp-Version: 1.7.5.7(1.0.07) on ASSP.nospam X-Assp-ID: ASSP.nospam (77953-07232) X-Assp-Spam: YES X-Assp-Original-Subject: Re: Demo Feedbacks for End of November Sales X-Spam-Status:yes X-Assp-Spam-Reason: MessageScore (125) over limit (50) X-Assp-Message-Totalscore: 125 Received: from [192.168.0.10] ([111.111.111.111] helo=[192.168.0.10]) with IPv4:25 by ASSP.nospam; 4 Dec 2012 20:25:52 -0700 Content-Type: multipart/alternative; boundary=Apple-Mail-40FE7453-4BE7-4AD6-B297-FB81DAA554EC Content-Transfer-Encoding: 7bit Subject: Re: Demo Feedbacks for End of November Sales References: <003c01cdd22e$eafbc6f0$c0f354d0$@com> From: Some User <[email protected]> In-Reply-To: <003c01cdd22e$eafbc6f0$c0f354d0$@com> Message-Id: <[email protected]> Date: Tue, 4 Dec 2012 19:32:28 -0700 To: External User <[email protected]> Mime-Version: 1.0 (1.0) X-Mailer: iPhone Mail (10A523) Why is it that a local sender has been banned on our local server, and how can I fix this?

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  • WebDav issue with Mac OS X 10.5.3 onwards

    - by svnr
    We upgraded to Mac OS X 10.5.3 and getting problem when uploading files (PUT) to a webdav server (the server is Apache running on a Windows environment). When we drag and drop on to a webdav folder using Finder we get a -36 error. When looking at the stack trace of the web server the problem is due to INVALID CRLF or some times getting the following error. Both the stack point to error when copying the stream. When googled found that it is because the Mac changed to Transfer-Encoding to 'Chunked' ClientAbortException: java.net.SocketException: Software caused connection abort: socket write error at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:366) at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:433) at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:348) at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:392) at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:381) at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:88) at org.apache.commons.io.CopyUtils.copy(CopyUtils.java:200) at com.artesia.webdav.action.helper.ResponseWriterHelper.writeFileContentResponse(ResponseWriterHelper.java:206) at com.artesia.webdav.action.GetMethodAction.executeWebDavMethod(GetMethodAction.java:147) at com.artesia.webdav.action.BaseWebDavMethodAction.execute(BaseWebDavMethodAction.java:257) at com.artesia.webdav.action.BaseWebDavAction.execute(BaseWebDavAction.java:92) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) at com.artesia.webdav.web.WebDavActionServlet.service(WebDavActionServlet.java:93) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1069) at org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:455) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507) at javax.servlet.http.HttpServlet.service(HttpServlet.java:697) at com.artesia.webdav.web.WebDavActionServlet.service(WebDavActionServlet.java:93) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at com.artesia.webdav.web.BaseWebDavServlet.forward(BaseWebDavServlet.java:91) at com.artesia.webdav.web.BaseWebDavServlet.service(BaseWebDavServlet.java:83) at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.artesia.webdav.action.RequestFilter.doFilter(RequestFilter.java:46) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.artesia.webdav.web.WebDavAuthenticationFilter.doFilter(WebDavAuthenticationFilter.java:463) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.artesia.webdav.web.MacSessionHackFilter.doFilter(MacSessionHackFilter.java:111) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) Caused by: java.net.SocketException: Software caused connection abort: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92) at java.net.SocketOutputStream.write(SocketOutputStream.java:136) at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:746) at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:433) at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:348) at org.apache.coyote.http11.InternalOutputBuffer$OutputStreamOutputBuffer.doWrite(InternalOutputBuffer.java:769) at org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:117) at org.apache.coyote.http11.InternalOutputBuffer.doWrite(InternalOutputBuffer.java:579) at org.apache.coyote.Response.doWrite(Response.java:559) at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:361)

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  • SSD - Tweaks/Recommended Configuration

    - by Miky D
    I've just purchased my first SSD drive (a 32GB MLC from Imation) without doing enough research ahead of time in the spirit of giving the new technology a shot and getting myself up to speed by empirical research rather than reading countless reviews and I'm now at a crossroads. I've built a new server to test the new drive and at first I wanted to test it with Windows Server 2003 R2 x86 but after I loaded the OS on it and it had problems loading the drivers of the motherboard I went to the internet and did more research and the more I read the more I got confused. Finally I decided to try out Windows Server 2008 R2 x64 since it supposedly has certain support for SSD drives inherent in the NT 6.1 core. Indeed I've had much better luck with the new OS and got all the drivers installed but now I still have some questions: Should I set the drive to: IDE Emulation or AHCI in the BIOS? Should I make any other changes in the BIOS (I've read on the internet that Write Through should be changed to Write Back) Should I make any other adjustments in Windows (i.e. Tweaks such as disabling prefetching or disabling the Last Accessed Timestamp on the filesystem) and if so, is there a good/reliable online resource with instructions? I'm so tired of reading through countless online posts which spend 80% of coverage on the history of SSDs and benchmarks and explanations of how SSDs work. I got that, now I'd like to know if there's anything I should actually do to make sure Windows Server 2008 R2 makes good use of the SSD.

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  • Atlassian Crucible very slow on large repository

    - by Mitch Lindgren
    Hi everyone, My company has been running a trial of Atlassian Crucible for some months now. For repositories where it's working properly, users have given very positive feedback about the tool. The problem I'm having is that we have several different projects, each with its own repository, and some of those repositories are very large. One repository in particular has a large number of branches and probably around 9,000 files per branch. Browsing that repository in Crucible is extremely slow. Crucible is running on a CentOS VM. The VM has 4GB of RAM, and I've set Crucible's maximum at 3GB, of which it is currently using 2GB. I've brought this up in a support ticket with Atlassian, and they suggested the following: In particular because you have a rather large SVN repository you will likely find that Fisheye will be creating a large index file on disk. To help improve performance a few things you can try are: Increasing the available memory available to Fisheye (see the document above). Migrating to an external database: confluence.atlassian.com/display/FISHEYE/Migrating+to+an+External+Database Excluding files and directories from your index that aren't needed: confluence.atlassian.com/display/FISHEYE/Allow+(Process) (Sorry for not hyperlinking; don't have the rep.) I've tried all of these things to an extent, but so far none have helped greatly. I was originally running Crucible on a Windows box with 2GB of RAM using the built in HSQL DB. Moving to MySQL on CentOS saw a performance increase for some repositories, and made Crucible much more stable, but did not seem to help much with our biggest repository. There are only so many files/branches I can exclude from indexing while maintaining the tool's usefulness. That being the case, does anyone have any tips on how to speed up Crucible on large repositories, without investing in insanely powerful hardware? Thanks! Edit: To clarify, since I didn't mention it explicitly above, I am using FishEye.

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  • How could Google Latitude find my exact PC location with no GPS or public wifi?

    - by Mike
    I found a similar question here but I still don't get it. You see, I live in a small town and every time I check my IP location via online services or speed test websites, my location appears to be my ISP server location (which in my case is 250 miles away). But when I tried Google latitude, it pinpointed my exact location within less than 100 meters! I use Windows Vista, Google Chrome, and when I got the message that "Google is trying to locate you", I agreed just to check what the result will be. It was scary, very scary! What I've come up after reading the above link is that Google have a kind of extensive WiFi database locations. That could be understandable with the case of public and open WiFis that are used with a lot of people. Some of them might be using applications that could gather location data and somehow this information ends up in giant Google databases. From those, Google could pinpoint a WiFi location based on its MAC address along with these bits of info that have been gathered via various sources. The issue here is that my WiFi is private, I don't even broadcast my WiFi name. So how on earth did Google find my exact PC location? Please break down the answer in layman's terms as possible.

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  • Ripping CD Audio simultaneously from 2 drives on one PC via USB or PATA - rip accuracy preserved?

    - by Rob
    I'm considering ripping audio (reading audio) from CDs using 2 drives simultaneously to speed up the process of ripping the CDs - i.e. 2 at a time rather than 1. Are there any issues with achieving maximum rip accuracy? In general I wondered if people have tried this and if the simultaneous streams from both rip activities would overload the host machine and cause packet loss or read retries resulting in a sub-standard CD-DA Audio CD rip? If it just means the rip is slightly slower (but still faster than sequentially doing one rip followed by another) but still of maximum accuracy then that is OK for me. I will be using dbPowerAmp to rip the CDs and converting to FLAC lossless format. Specific examples: There are 2 machines I intend to do it on: A Toshiba NB100 1.6Ghz Atom netbook, 2Gb RAM, running Windows XP Home with 1 external LG DVD/CD burner and external 1 LG Blu-ray burner attached via USB 2.0, ripping to the machine's 5400rpm internal hard drive. This rips from one CD drive very well, more than adequate, it is a nippy, fast little machine for its specification. A Desktop PC running Windows 7 Home Premium with MSI P4M900M2-L/ MS-7255v2.0 motherboard and 1.86Ghz Intel Core 2 Duo E6320, 7200rpm hard drive and 2Gb RAM, with an internal LG PATA DVD/CD burner (master) and a Philips DVD/CD burner (slave) on the same PATA bus (perhaps separate buses would be another option to consider here). Thoughts?

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  • Choosing the right TV tuner - USB or PCI TV tuners, hardware/software, DVB? Hybrid/combo/analog?

    - by Nucleon
    Greetings, I'll start with some background information so you know what I'm trying to accomplish and then get to my question. I work at a Television station in the US and we are working on setting up an online DVR/Podcast system for all of our newscasts. So basically we would be recording every newscast in HD, encoding it to flv/h.264 for viewing in a browser on flash compatible and iphone/ipad devices, eventually migrating to WebM when it's browser compliant. This task is theoretically pretty simple as it all it involves is a TV tuner device and a program like VLC, MythTV or whatever to schedule and dump it to a file, encode it with VLC/FFMPEG and push it to the streaming server. Now to the hardware, in order to accomplish that task, should I use an internal PCI tuner or a USB 2.0 tuner? Is there a difference? The bus speeds of both are not too far apart, and is the bus speed really relevant in this case? Does it matter if the device has a hardware encoder or a software encoder? On many sites the USB was recommended for ease of set up and use, but would it overly task a processor, or is that not a concern as long as it's a decent PC (at least duo core, 6gb ram). What's the difference between the stick USB and the Box USBs? To my understanding analog is basically gone in the US, so we would want a hybrid or combo tuner correct? How do those differ from DVB? Are there any other features or concepts which I am missing which may influence the recommended product. It would be ideal if the device which could work in both Linux and a Windows environment, to my knowledge most Hauppauge are? Example 1: PCI Hauppage http://www.newegg.com/Product/Product.aspx?Item=N82E16815116033 Example 2: USB 2.0 Box http://www.newegg.com/Product/Product.aspx?Item=N82E16815116029 Example 3: USB 2.0 Stick http://www.newegg.com/Product/Product.aspx?Item=N82E16815116031 Any guidance from the Superusers would be much appreciated!

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  • How do I keep folders synced and backed up between two macs using a Linux NAS (rsync?)

    - by Hultner
    I've got two primary computers, one Mac Pro and one MacBook Pro for when I'm on the go. I've also got a Linux sever which also acts as NAS. Currently I backup the entire computers to an external drive with Time Machine which is rather useless and doesn't sync anything. What I really want to do is to keep my important files synced between both computers and my NAS (which is running RAID 5), that way I'm not backing up easily replaceable systemfiles and I've got all my important files in 3 places where two of them are running raid so at least 5 drives would have to crash at the same time before actual data loss occur. Folders I want to keep synced is basically my photo, documents, development, mamp and work folders and then I want to keep the user library folder backed up but not synced. I'm thinking that I'd have to use rsync but don't know how. Before suggesting Dropbox and similar suggestions I don't want to use them because of several reasons some of them being security (Dropbox obviously proved this), Speed (sometimes I'll sync gigabytes of data and that will be significantly faster locally and probably even through VPN as I have a Gigabit pipe), Space (space on my NAS is cheap and only practically limited by my needs), reliability (even if my internet were to go down I still need to be able to keep my files synced incase I'd need to go somewhere on the fly), price (I already have all the hardware and for the amount of gigabytes and bandwidth I'd need I doubt that there's any free or cheap service). Those are my main reason for wanting to keep it locally. I'm sorry for any spelling or grammatical mistakes that I've might have done. I'm writing this on my smartphone from a shaky train and English isn't my mother tongue. I gratefully appreciate any answers even if only partly solving my problem.

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