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  • Find rows that match multiple (two) criteria

    - by Scott Sanders
    I am trying to get a list of items that match on two criteria. DATE PRODUCT CHANNEL DEC 13 Cat Chow DRUG NOV 13 Pupperoni DRUG DEC 13 Meow Mix DRUG DEC 13 Jerky Treats DRUG This is the data from A1 to C5. I want all the product sold on DEC 13 and in the DRUG channel. This is the formula that I have now, which is only bringing back the first example. INDEX($B$2:$B$5, MATCH(1, ("DRUG"=$C$2:$C$5)*("DEC 13"=$A$2:$A$5), 0) )

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  • Two way SSH authentication

    - by Saif Bechan
    I have installed ASL and it recommends me that I implement a two way SSH authentication. I have some questions about it. I understand the general idea that you need to login with both a key and a password. I am working from a laptop, what will happen if my laptop get's stolen. Will I never be able to login again??

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  • How to partition my two hard drives

    - by Thoma Bigueres
    I've got a computer running under the OS "Window Server 2008 R2" on which i have : 60GB disk C: NTFS (Disk 0) 40GB unallocated memory (Disk 1) I would like to partition my disk so that i'll have : 30GB disk C: 70GB disk D: Can you help me on the step i should do to be abble to have this configuration ? I saw that first of all i should merge the two volumes into one, but when i click right on the c: Volume, i can't click on the "Extend Volume" link. Do you know how i can overcome this ? Thanks a lot

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  • Using build with a has_one association in rails.

    - by espinet
    This is a really noob question but im having trouble finding the answer, is there a way in rails to have 0 or 1 association? For example, I create a user with no objects, than later on create an object for that user. I tried using build with a 'has_one' association but that blew up... The only way I see this working is using 'has_many'. The user is suppose to only have at most one of these objects, is there any way to do this?

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  • Two network cards latency

    - by Ross W
    I'm trying to setup a network architecture where one network is a low-latency low-bandwidth tcp control system (GBit), the other is a high-bandwidth udp (maybe tcp) network that could get saturated (GBit). If I have two NICs inside a server running Linux. What happens to the low-bandwidth/low-latency network when the high-bandwidth gets saturated. Does each Ethernet card get the same amount of priority inside the kernel or would the low-latency network suffer from the high-bandwidth being saturated?

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  • mod_rewrite all but two files causing loop

    - by mpounsett
    I'm trying to set up a web site to allow the creation of a semaphore file to close the site. The logic I want to follow is: when the semaphore file exists and the request is not for /style.css or /favicon.icon show the content of /closed.html I have 1 and 3 working, but my exceptions for 2 result in a processing loop when style.css or favicon.ico are requested. This is my most recent attempt: RewriteEngine on RewriteCond %{REQUEST_URI} !^/style.css RewriteCond %{REQUEST_URI} !^/favicon.ico RewriteCond /usr/local/etc/site/closed -f RewriteRule ^.*$ /closed.html [L] This is in a VirtualHost block, not in a Directory. There is no .htaccess file in play. I have also recently tried this, based on an answer I found elsewhere, but with the same (looping) result: RewriteCond %{REQUEST_URI} ^/style.css [OR] RewriteCond %{REQUEST_URI} ^/favicon.ico RewriteRule ^.*$ - [L] RewriteCond /usr/local/etc/site/closed -f RewriteRule ^.*$ /closed.html [L] I expect a request for /style.css or /favicon.ico to fail to match one of the first two rewrite conditions, which should prevent the URI from being rewritten, which should stop the mod_rewrite iteration. However, mod_rewrite seems to think the URI has been rewritten in those cases, and iterates over the rules again (and again, and again). The above works properly in all cases except for style.css or favicon.ico. In those cases I exceed the loop limits. What am I missing here to cause the rewrite iteration to stop when someone requests style.css or favicon.ico? EDIT: Here's a loglevel 9 example of what happens using the first ruleset when a request arrives for /style.css. This is just the first two iterations.. it continues to loop identically until the limit is reached. 2001:4900:1044:0:145f:826e:6436:dc1 - - [29/May/2014:15:29:26 +0000] [host.example/sid#80c1c48b0][rid#80c1db0a0/initial] (2) init rewrite engine with requested uri /style.css 2001:4900:1044:0:145f:826e:6436:dc1 - - [29/May/2014:15:29:26 +0000] [host.example/sid#80c1c48b0][rid#80c1db0a0/initial] (3) applying pattern '^.*$' to uri '/style.css' 2001:4900:1044:0:145f:826e:6436:dc1 - - [29/May/2014:15:29:26 +0000] [host.example/sid#80c1c48b0][rid#80c1db0a0/initial] (4) RewriteCond: input='/style.css' pattern='!^/style.css' => not-matched 2001:4900:1044:0:145f:826e:6436:dc1 - - [29/May/2014:15:29:26 +0000] [host.example/sid#80c1c48b0][rid#80c1db0a0/initial] (1) pass through /style.css 2001:4900:1044:0:145f:826e:6436:dc1 - - [29/May/2014:15:29:26 +0000] [host.example/sid#80c1c48b0][rid#80c1dd0a0/initial] (2) init rewrite engine with requested uri /style.css 2001:4900:1044:0:145f:826e:6436:dc1 - - [29/May/2014:15:29:26 +0000] [host.example/sid#80c1c48b0][rid#80c1dd0a0/initial] (3) applying pattern '^.*$' to uri '/style.css' 2001:4900:1044:0:145f:826e:6436:dc1 - - [29/May/2014:15:29:26 +0000] [host.example/sid#80c1c48b0][rid#80c1dd0a0/initial] (4) RewriteCond: input='/style.css' pattern='!^/style.css' => not-matched 2001:4900:1044:0:145f:826e:6436:dc1 - - [29/May/2014:15:29:26 +0000] [host.example/sid#80c1c48b0][rid#80c1dd0a0/initial] (1) pass through /style.css

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  • KVM with one host IP and a different subnet for machines

    - by Jguy
    I've already setup a KVM host with proper IP configurations, but my host had me create DHCP and use that to assign the IP's to the machines. I want to see if there's an easier way to do it (or better). Upon my first setting out on this, I didn't find anything that pointed me in the right direction. I'm coming off a fresh install of Debian 6.0 x64, so I have nothing installed. I've logged in, queried for the below information and changed the password from my host set one. I have a Debian 6.0 x64 system with the following initial network configuration (substituted 255 in place of my real first octave): # tail /etc/network/interfaces auto eth0 iface eth0 inet static address 255.9.24.80 broadcast 255.9.24.95 netmask 255.255.255.224 gateway 255.9.24.65 # default route to access subnet up route add -net 255.9.24.64 netmask 255.255.255.224 gw 255.9.24.65 eth0 I have a /29 subnet that I want the virtual machines to use from my host: IP: 255.46.187.152 /29 Mask: 255.255.255.248 Broadcast: 255.46.187.159 Usable IP addresses: 255.46.187.153 to 255.46.187.158 I like the interface of Cloudmin, so I want to try and use that if I can to administrate my guests. So, my questions: How do I set this up on the host system the best so that I can use the additional Subnet IP's on the guests and have them accessible from the internet? I also need to host a DNS server, which means one of these VM's has to have two IP's assigned to it and accessable from the outside world. How can I do that using Cloudmin? I had a question about this here: Multiple IP addresses assigned to one KVM VM But I just reformatted the entire server and am trying to figure out a better way of doing this. Machine information: # ip route show 255.9.24.64/27 via 255.9.24.65 dev eth0 255.9.24.64/27 dev eth0 proto kernel scope link src 255.9.24.80 default via 255.9.24.65 dev eth0 brctl is empty # ip addr list 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether c8:60:00:54:b5:d8 brd ff:ff:ff:ff:ff:ff inet 255.9.24.80/27 brd 255.9.24.95 scope global eth0 inet6 fe80::ca60:ff:fe54:b5d8/64 scope link valid_lft forever preferred_lft forever Thank you for any help you can provide me. EDIT: I've installed kvm and cloudmin: aptitude install qemu-kvm libvirt-bin wget http://cloudmin.virtualmin.com/gpl/scripts/cloudmin-kvm-debian-install.sh ./cloudmin-kvm-debian-install.sh Rebooted and now my network configuration looks like this: # device: eth0 iface eth0 inet manual # default route to access subnet iface br0 inet static address 255.9.24.80 netmask 255.255.255.224 broadcast 255.9.24.95 network 255.9.24.64 bridge_ports eth0 gateway 255.9.24.65 I setup in Cloudmin the Start IP as 255.46.187.153 and End IP as 255.46.187.158. The CIDR is 29 and the gateway is 255.46.187.152. I've installed a guest with ubuntuserver 12.04 x64, which was able to get and retrieve internet resources during installation, but now cannot reach anything nor can it be reached from anything. Its network configuration is: iface eth0 inet static address 255.46.187.153 netmask 255.255.255.224 broadcast 255.46.187.159 gateway 255.46.187.152 dns-nameservers <host provided nameservers> And is not able to ping google.com through DNS or direct IP, I can't ping the VM from the outside or the host. any ideas now?

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  • Remote Desktop - remote computer that was reached is not the one you specified

    - by Jim McKeeth
    We just setup some new Windows 2008 R2 servers and we are unable to Remote Desktop into them from our Windows 7 desktops. Remote desktop connects, but after we provide credentials we get: The connection cannot be completed because the remote computer that was reached is not the one you specified. This could be caused by an outdated entry in the DNS cache. Try using the IP address of the computer instead of the name. If we connect from Windows 7 to a machine not running Windows 2008 R2, or from a machine not running Windows 7 to the Windows 2008 R2 server, it works fine. Likewise if we connect to the Windows 2008 R2 server from Windows 7 via the IP address then it works fine (although that causes other problems later). I've only found one other mention of someone having this problem, so I don't think it is just our network. Any suggestions on how to connect from Windows 7 to Windows 2008 R2 via DNS? Both are 64-bit. Update: Turns out it does not need to be R2 to get the error. We have another server that is Windows 2008 R1 64-bit that also fails.

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  • Plesk Postfix SMTP 550 5.7.1 "Command rejected" for one external sender

    - by Mnebuerquo
    My server is rejecting emails from one external sender. I suspect this might be misconfiguration on the sending server, but I'm not sure from these error messages. The non-delivery report message the sender gets contains this text: #5.7.1 smtp;550 5.7.1 Command rejected> #SMTP# I also see this message in /var/messages at about the same time as the rejection message was sent, though I'm not sure if it's actually related: Nov 29 12:29:28 localhost postfix/smtpd[31829]: sql_sqlite3 plugin: no result found I'm using Plesk 10.4.4 Update #47, Centos 6.2, Postfix 2.8.4-11100615 on my mail server. This is only happening for one sender so far, but I found a Google result on experts-exchange.com which seemed to identify the same problem and with the same sending domain. This was posted back in June, and currently has no answers, so even if I was a paying customer it wouldn't be answered. (http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Q_27760746.html) The generating server is bigfish.com. What I need to determine is if this is a problem on my server or a problem with bigfish.com. Is there more information I can find in config files, logs, etc. to figure this out?

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  • Apache (Solaris 10): 2 symlinks to the same file, one works the other doesn't

    - by justcatchingrye
    I'm seeing a strange issue with Apache I have a system that pulls a configuration file from a web server. I want to use a symlink with the name 'ocds-dpsarch01a.rules'. This doesn't work. However, if I change one character in that name and link it to the same file, it works - See below I can't think of any reason why one symlink would work when another doesn't? I would have thought either the Apache configuration is right and all symlinks work, or it isn't and no syslinks work(?) Any thoughts welcome ls -l /REMOVED/apache2/htdocs/rules/syslog/*cds-dpsarch01a.rules lrwxrwxrwx 1 root root 62 May 13 13:55 ocds-dpsarch01a.rules - /REMOVED/apache2/htdocs/templates/syslog/DCM_SST_DPST_01.rules lrwxrwxrwx 1 root root 62 May 13 13:52 xcds-dpsarch01a.rules - /REMOVED/apache2/htdocs/templates/syslog/DCM_SST_DPST_01.rules 1) Application starting and successfully reading configuration from the web server 13/05/2010 13:56:37: Information: Connecting ... 13/05/2010 13:56:37: Debug: Reading REMOVED:// REMOVED /rules/syslog/xcds-dpsarch01a.rules 13/05/2010 13:56:37: Debug: HTTP response: HTTP/1.1 200 OK Date: Thu, 13 May 2010 13:56:34 GMT Server: Apache Last-Modified: Fri, 09 Apr 2010 12:28:26 GMT ETag: "5073-a744-ee92ae80" Accept-Ranges: bytes Content-Length: 42820 Cache-Control: max-age=5 Expires: Thu, 13 May 2010 13:56:39 GMT NL7C-Filtered: Content-Type: text/plain Connection: close 13/05/2010 13:56:37: Debug: Plain text rules file detected. 2) Application starting and failing to read configuration from the web server 13/05/2010 13:56:55: Information: Connecting ... 13/05/2010 13:56:55: Debug: Reading REMOVED :// REMOVED /rules/syslog/ocds-dpsarch01a.rules 13/05/2010 13:56:55: Debug: HTTP response: HTTP/1.1 403 Forbidden Date: Wed, 12 May 2010 15:25:11 GMT Server: Apache Vary: accept-language,accept-charset Accept-Ranges: bytes Connection: close Content-Type: text/html; charset=iso-8859-1 Content-Language: en Expires: Wed, 12 May 2010 15:25:11 GMT 13/05/2010 13:56:55: Error: HTTP: HTTP/1.1 403 Forbidden Date: Wed, 12 May 2010 15:25:11 GMT Server: Apache Vary: accept-language,accept-charset Accept-Ranges: bytes Connection: close Content-Type: text/html; charset=iso-8859-1 Content-Language: en Expires: Wed, 12 May 2010 15:25:11 GMT 13/05/2010 13:56:55: Error: HTTP GET failed 13/05/2010 13:56:55: Error: Failed to open Rules file: REMOVED :// REMOVED /rules/syslog/ocds-dpsarch01a.rules

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  • Two large, linked Excel files take 30 minutes to save, except in VMWare environment

    - by Gerald L
    I support some tax consultants who love to use Excel when they should probably be using Access. Anyway, they have created two Excel files, A and B. File B has cells linked to file A. File A is 27 MB and file B is 16 MB. One worksheet has roughly 1 million rows and there is another worksheet doing a whole bunch of SUMIF on the 1 million rows. Not the best idea, but whatever. Both Excel files open and recalculate within a reasonable amount of time (1-2 minutes). For a files that large, this is acceptable. Here is the problem: Once you change a cell, and save the file B, it takes a solid 30 minutes to save the file, and the processors are going full speed. I've tried this on 6 different machines, all running Windows XP SP3 with Office 2007 SP2 and all patches. The specs vary from one machine with 512 MB or RAM to a machine with 4 GB of RAM and quad processors. Same result every time. Here is the clincher: If I do this same save operation on a VMWare virtual machine, the file gets saved in 1 minute. I've tried this with my ESX servers at the office, my Mac Fusion at home, and VMWare workstation at the office. It does not matter how much RAM the virtual machine has... it saves in about 1 minute every time. Does anybody have any idea why this is happening and how to fix?

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  • osx bash grep - finding search terms in a large file with one single line

    - by unsynchronized
    Is there simple unix command line i can enter which lets me isolate say 512 bytes either side of a search term, even if there is only one "line" in a very large text file? Ok, this should be easy. Famous last words. I'm not that familiar with grep, but it seems it is mainly used to filter out lines in the input that contain search terms. I have a very large json file that I downloaded that i want to search for a particular term. before you click the link - it's over 244MB so be warned - it is from the internet wayback machine and contains lists of zip files of archived photos. i am trying to find mine. Their web interface is broken, so i found the json file that they make public here - it's the last one on the list. when i grep looking for my username, it finds it, but proceeds to dump that line to the console. the problem is that line is 244MB long, and it's the only line in the file. i tried using less, but could not get that to do much - it's very slow, and seems to have the same issue. is there simple unix command line i can enter which lets me isolate say 512 bytes either side of a search term?

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  • VPS with Plesk, one ip, and godaddy (definely need help)

    - by Francesco
    Hi there, here's my situation : i've Plesk 8.3.0 with one IP and i've registered my domains at godaddy.com My problem : i cannot figure out how to configure plesk and godaddy to have my domains (6) properly working into the VPS. i've only one IP, so i can't have my personal NS and need to use godaddy ns. But.. how do i set all the stuff ? I've made a try but it's not working. Please take a look : This is an example of how the domain i'm actually working on is configured On Plesk : Host Record type Value 1.2.3.4 / 24 PTR mydomain.com. ftp.mydomain.com. CNAME mydomain.com. mail.mydomain.com. A 1.2.3.4 ns.mydomain.com. A 1.2.3.4 mydomain.com. NS ns.mydomain.com. mydomain.com. A 1.2.3.4 mydomain.com. MX (10) mail.mydomain.com. webmail.mydomain.com. A 1.2.3.4 www.mydomain.com. CNAME mydomain.com. On godaddy,(Total DNS Control) for the same domain i have this setup : A (Host) Host Points To TTL Actions * 1.2.3.4 1 Hour CNAMES (Aliases) Host Points To TTL Actions e email.secureserver.net 1 Hour email email.secureserver.net 1 Hour ftp @ 1 Hour imap imap.secureserver.net 1 Hour mail pop.secureserver.net 1 Hour mobilemail mobilemail-v01.prod.mesa1.secureserver.net 1 Hour pda mobilemail-v01.prod.mesa1.secureserver.net 1 Hour pop pop.secureserver.net 1 Hour smtp smtp.secureserver.net 1 Hour webmail webmail.secureserver.net 1 Hour www @ 1 Hour MX (Mail Exchange) Priority Host Goes To TTL Actions 10 @ mailstore1.secureserver.net 1 Hour 0 @ smtp.secureserver.net Host Points To TTL Actions @ ns53.domaincontrol.com @ ns54.domaincontrol.com What should i correct ? Thanks for helping me Francesco

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  • Use one NIC to create multiple interfaces for Linux KVM

    - by Phanto
    I am working on a thesis research project, and I am having some difficulty figuring out how to make one NIC spawn several "bridge" interfaces such that each KVM VM can be seen on the local network. I am very new to KVM, and am still exploring what it can do. Below is the scenario that I am attempting to make (on a CentOS/RHEL 6 system): Linux KVM Host has 1 NIC (eth0) connected to a switch. Create multiple "bridge" or equivalent interfaces that are spawned off of eth0 that would provide a unique IP for each VM. This is so that each VM can communicate with other hosts on the network, and that other hosts on the network can communicate with the VM. IMPORTANT: I would like iptables on the KVM host to be able to manipulate/control/restrict the traffic that would be sent on those "bridge" interfaces. I would like to create a minimum of three VM's, each using their own unique "bridge" interfaces. I have previously made a br0 interface off of eth0, but unfortunately, I am unable to add any more to it. It appears that you can only bridge 1 interface to the NIC. I would like to bridge many to one. Would a tap device be able to do this? If so, how would it be set up? Effectively, I am attempting to replicate what can easily be created with VirtualBox on Windows, where each VM is given a "bridged" interface, and can live on the network. I want to achieve this very same thing with Linux KVM. Thank You EDIT: To be more descriptive, I want to achieve something that looks like this: This can be found on this page: http://en.gentoo-wiki.com/wiki/KVM#Networking_2 HOST +---------------+ | | KVM GUEST1 | | +--------------+ | +------+ | | | LAN ---+--- eth0 | +--+---+---- nic0 | KVM GUEST2 | | tap0----+ | |192.168.1.13 | +--------------+ | | tap1----+ | +--------------+ | | | +------+ | | | | | br0 +--+----------------------+---- nic0 | |192.168.1.12 | |192.168.1.14 | +---------------+ +--------------+

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  • Move postfix maildir files from one mail server to another

    - by Tauren
    I have a new mail server configured as described in this howto: http://howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-ubuntu-9.10 I also have an ancient mail server configured very similarly (using the same HOWTO, just for Fedora Core 6, if I recall correctly). Earlier today I had to switch from the old server to the new one, and the old one is no longer online. However, after I had migrated everything and switched it all over, I discovered a bunch of undelivered mail in the queue. It got delivered to the local mailboxes on the old server, so now there are a bunch of messages on it that I'd like to move to the new server. The new server has already received new messages, so I need to merge the files together somehow. For each user with an email of [email protected], there are files like this on both servers: /home/vmail/customer.com/username/maildirsize /home/vmail/customer.com/username/courierpop3dsizelist /home/vmail/customer.com/username/new/1271481177.Vca01I6006bM580357.mailhost.mydomain.com Can I simply copy the hundreds of files in the various new directories on the old server to the corresponding new directories on the new server? Will the maildirsize and courierpop3dsizelist files get updated automatically, or do I need to do something to update them?

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  • Sync Two Exchange accounts or Ready Only access to subfolders

    - by cpgascho
    This is two questions kind of. The situation is as follows. I am running SBS 2008 with Exchange 2007. There is a shared account which has subfolders to keep track of the process of jobs that are coming into the company (ie: sales) I need to give other people in the company read access to this mailbox not full control. When I give ready only access to the root other users can only see the Inbox and not subfolders. Permissions have to be applied to each folder. One solution I have considered is creating a secondary mailbox that everyone could have full access too which would have a one way sync from the sales mailbox to the secondary mailbox. Then people could see what was happening without messing up the main mailbox by accident (at worst they would mess up the secondary mailbox) Ideally I could find a way to propgate the READ ONLY Permissiosn to all the subfolders. I have tried using PFDavAdmin to do this but have not been able to get it to connect successfully from Windows 7 To Exchange 2007 Any idea on how to 1. Propogate permissions (get PFDavAdmin to work??!) 2. Sync mailboxes 3. Other solution? Thanks Chris

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  • Name one good reason for immediately failing on a SMTP 4xx code

    - by Avery Payne
    I'm really curious about this. The question (highlighed in bold): Can someone name ONE GOOD REASON to have their email server permanently set up to auto-fail/immediate-fail on 4xx codes? Because frankly, it sounds like "their" setups are broken out-of-the-box. SMTP is not Instant Messaging. Stop treating it like IRC or Jabber or MSN or insert-IM-technology-here. I don't know what possesses people to have the "IMMEDIATE DELIVERY OR FAIL" mentality with SMTP setups, but they need to stop doing that. It just plain breaks things. Every two or three years, I stumble into this. Someone, somewhere, has decided in their infinite wisdom that 4xx codes are immediate failures, and suddenly its OMGWTFBBQ THE INTARNETZ ARE BORKEN, HALP SKY IS FALLING instead of "oh, it'll re-attempt delivery in about 30 minutes". It amazes me how it suddenly becomes "my" problem that a message won't go through, because someone else misconfigured "their" SMTP service. IF there is a legitimate reason for having your server permanently set up in this manner, then the first good answer will get the check. IF there is no good reason (and I suspect there isn't), then the first good-sounding-if-still-logically-flawed answer will get the check.

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  • Multiple Servers + One MailServer

    - by theomega
    Hy, I got several Linux-Servers (running Debian) where different services run: Database-Servers, Webservers, Applicationsservers, Tools and so on. All Servers are connected to the same internal network. There is also one special Server which is the Mail-Server: All Mailaccounts are stored on this server, it is also the outbound Mailserver for all the other servers. I want all Mails for all servers to get saved on the Mailserver. For example if an cron-job fails on one of the web-servers the mail should not be delivered to the local user but instead to the Mailserver so I get a centralized place for mail storage. How do you set up this scenario? My current setup is: Using postfix as MTA on the Mailserver and using ssmtp on all the other servers. SSMTP is configured to send the mails to the Mailserver. The Mailserver is configured to allow the whole internal network to relay mails using itself. Is this the right way to choose? I also thought about setting up a MTA (postfix) on every server and configure it somehow to forward the mails. What would be the advantage of this solution?

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  • 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?

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  • One-To-Many Powershell Scripts

    - by Matt
    I'm trying to create a script to run as a scheduled task, which will run against multiple servers and retrieve some information. To start with, I populate the list of servers by querying AD for all servers that match a certain set of criteria, using Get-ADComputer. The problem is, the list is returned as an object, which I can't then pass to the New-PSSession list. I have tried converting it to a comma-seperated string by doing the following: foreach ($server in $serverlist) {$newlist += $server.Name + ","} but this still doesn't work. the alternative is to iterate through the list and run the various commands against each server one at a time, but my preference would be to avoid this and run them using one-to-many remoting. UPDATE: To clarify what I want to end up being able to do is using -ComputerName $serverlist, so I want $serverlist to be a string rather than an object. UPDATE 2: Thanks for all the suggestions. Between them and my original method I'm starting to wonder whether -ComputerName can accept a string variable? I've got varying degrees of success getting the list of computers converted to a comma separated string, but no matter how I do it I always get invalid network address.

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