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• Access virtualhosts over LAN (Also in xpmode (Virtual PC))

  - by Pheter

  Hi, I am running Wamp on my computer (the host). I have set up several virtualhosts in apache and they are working fine when I access them from the same computer (host). I have installed Windows XPMode on my computer (which is running windows 7). XPMode (which uses Virtual PC) is set up to use a NAT network. The network in XPMode is working fine, and I can access the host PC via the IP address 192.168.1.5, just as I would if I was using any physical computer on the same network. I can view all the web pages at 192.168.1.5 and it's subdirectories. However, I cannot access any of the subdomains that are configured in the virtualhosts of the host computer. How can I access the subdomains? I don't think that the fact that I am using XPMode and am using a virtualized OS has anything to do with it, but I thought that it was worth mentioning.

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• Exchange ActiveSync with multiple email addresses

  - by Martin Robins

  I have Exchange 2007 SP2, and I have successfully connected my Windows Mobile phone via Exchange ActiveSync and can send and receive emails. I have two addresses within my Exchange mailbox, [email protected] and [email protected], with the second being set as the reply address. When I view my email addresses on my device, I see both of these email addresses, however when I send new messages it always selects the first email address as the reply address and not the second. It is probably worth pointing out that, like in the example provided above, the email addresses are shown alphabetically and the address being selected is the first alphabetically (just in case that matters). I would like to set the device to always select the reply address specified in the mailbox, or at least be able to ensure that the address I want is selected if I have to select it manually on the device, but cannot find any way to make this happen. Can anybody help?

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• Do I need VMWare vSphere?

  - by Gk

  I'm planning use vmware to upgrade some of very aged server instead replace with all new bunch of server. VMWare vSphere sounds great but because of low budget I can't afford for both licenses and SANs. Without SAN, is vSphere worth the price? As I know without SAN, the VMWare HA, VMontion, FT is unavailable. So, do I need vSphere or only ESXi free version assume that I only need backup vm daily? Do you know any completed solution about backup on ESXi 4? TIA, -Gk

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• Enabling fastCGI for php in PLESK 9.3 or use ningx

  - by Saif Bechan

  I have a server that runs PLESK. I can set php to use 3 options: apache module, fastCGI application, cgi application And i have a different option that just says enable fastCGI support. Which option is the best to choose from? I run an php application with mysql and some ajax. Heavy reads and writes, it is a busy website. Second thing is will there be much difference if i install nginx to work with this. there is some sort of hack i can use to make ningx work on port 80 and apache on port 8080. I don't know if this is worth my while. thanks for your time folks!

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• Mail on OS X not fetching new Gmail mail – Among other issues

  - by Josh K

  It started after my 10.6.3 update. I'm basically looking for a "Clear cache" button in Mail. It won't fetch new Gmail (big problem), and there are six copies of the same message in my Inbox that won't delete (spits out the following error). I want to know if (a) anyone else has noticed this issue or (b) found a solution for a similar problem. It's worth it to note that I was getting the dreaded Finder -10810 Won't Start error, along with the progressive lose of control. This prompted two (2) hard resets of the machine and then I immediately went and installed this update. Has not happened since the update but now it's the mail issue.

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• Recommended SpamAssassin update channels?

  - by Timo Geusch

  I'm currently using SpamAssassin on a couple of mail servers that I look after. SpamAssassin runs in the context of amavisd-new on those servers and with the usual bunch of plugins (FuzzyOCR, DCC, pyzor, razor). Currently the servers are getting their rule updates from the default SpamAssassin update channel (updates.spamassassin.org). Overall the setup seems to be reasonably effective but some types of spam seem to wander right through it even though I've made repeated attempts at training spamassassin. My guesstimate is that about 85%-90% of the spam that gets through policyd-weight makes it through the filters and it's been getting a lot worse recently as spammers are getting better at working their way through filters. Can someone recommend additional sources of filters to make SpamAssassin more effective? So far I've found OpenProtect's update channel but are there others worth looking at?

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• Problem with regsvr32 on Windows Server 2010

  - by Chris Anton

  Hi all! I am attempting to register a basic COM dll on a Windows Server 2008 standard box. I run regsvr32 capicom.dll and it reports DllRegisterServer in capicom.dll succeeded. This is the same process we've used for years on Windows Server 2003. Sadly, when I attempt to create the object via a very very basic Microsoft vbscript example Set oStore = CreateObject("CAPICOM.Store") it throws a "ActiveX component can't create object" error. Thinking maybe it was a problem with this dll, I tried a few other DLLs we use with the same result. I tried using the regsvr32 in system, system32, and syswow64 all with the same result. I don't know too much about the differences between each of those, but figured it was worth a shot. The dll is being stored on the d:\ and seems to have correct permissions (though that'd be a different error altogether). Thanks to any help or thoughts you might have!

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• Exchange ActiveSync with muliple email addresses

  - by Martin Robins

  I have Exchange 2007 SP2, and I have successfully connected my Windows Mobile phone via Exchange ActiveSync and can send and receive emails. I have two addresses within my Exchange mailbox, [email protected] and [email protected], with the second being set as the reply address. When I view my email addresses on my device, I see both of these email addresses, however when I send new messages it always selects the first email address as the reply address and not the second. It is probably worth pointing out that, like in the example provided above, the email addresses are shown alphabetically and the address being selected is the first alphabetically (just in case that matters). I would like to set the device to always select the reply address specified in the mailbox, or at least be able to ensure that the address I want is selected if I have to select it manually on the device, but cannot find any way to make this happen. Can anybody help?

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• Dynamic DNS with Comcast

  - by colithium

  I've just recently moved across town. Previously, I had Dynamic DNS set up so I could remotely connect to my desktop (primarily to use TightVNC). My ISP was Comcast and I'm in the Denver, Colorado area. Currently, I'm still with Comcast and still in Denver. My router connects to the internet just fine and my Dynamic DNS record over at DynDNS did get updated with my router's current external IP address. So my router, DynDNS, and public DNS records all agree what my IP address is. However, I can't actually connect to anything from the outside world. My trace route to Google looks something like: Tracing route to google.com [74.125.19.147] 1 3 ms 1 ms 1 ms 192.168.1.1 (this is the internal IP address of my router) 2 * * * Request timed out. 3 9 ms 8 ms 10 ms te-8-2-ur02.wheatridge.co.denver.comcast.net [68.85.221.177] 4 12 ms 12 ms 19 ms te-0-8-0-2-ar02.aurora.co.denver.comcast.net [68.86.103.97] 5 16 ms 13 ms 11 ms pos-0-3-0-0-cr01.denver.co.ibone.comcast.net [68.86.91.1] 6 28 ms 28 ms 27 ms pos-0-9-0-0-cr01.dallas.tx.ibone.comcast.net [68.86.85.174] 7 29 ms 27 ms 28 ms pos-0-1-0-0-pe01.1950stemmons.tx.ibone.comcast.net [68.86.86.94] 8 66 ms 108 ms * 75.149.231.70 9 65 ms 68 ms 93 ms 72.14.233.77 10 67 ms 66 ms 66 ms 72.14.233.111 11 67 ms 67 ms 69 ms 216.239.43.144 12 68 ms 71 ms 73 ms 209.85.249.30 13 66 ms 66 ms 68 ms nuq04s01-in-f147.1e100.net [74.125.19.147] This is what the trace route looks like from an outside source to my DynDNS domain name: traceroute to 98.245.67.65 (98.245.67.65) 1 illuminati-130 138.67.130.61 2 138.67.63.253 138.67.63.253 3 vermiculite 138.67.253.20 4 csm-ct-gw 138.67.253.244 5 138.67.253.2 138.67.253.2 6 ge-7-24-ar01.denver.co.denver.comcast.net 68.86.128.17 7 te-0-4-0-0-ar02.denver.co.denver.comcast.net 68.86.179.21 8 te-9-3-ur01.wheatridge.co.denver.comcast.net 68.86.103.18 9 * * * {Times Out} Now my guess is, whatever is sitting just beyond my router (what the modem connects to) is gumming things up. Even though the routes aren't EXACTLY the same, that appears to be the spot that the trace route either stops or doesn't get a response. My question is, for Comcast networks (particularly in Denver), what would be the device that typically sits there? Is there anything I can do about it? That device seems to not respond to PING but does forward it along when I'm going outwards. But it looks like it eats it when the request is coming in. It's hard to prove that from these logs but I'm assuming that's the case because my router used to accept connections from the outside and I haven't changed anything on it.

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• How to move linux executables to a ramdisk?

  - by alfa64

  i've made a ramdisk this way: mkdir -p /media/ramdisk mount -t tmpfs -o size=512M tmpfs /media/ramdisk/ The reason for this is because i run a lot of node.js scripts and their execution time is very small, but i suspect that the time overhead is because it reloads the node.js executable from disk and destroys it on each subsecuent run. So i think this might be the solution to gain a bit, if not much, performance. How can i move a program like node to the ramdisk and run it from there? The idea is to have a startup script that creates the ramdisk and puts the node files inside of it. Note that i'm currently using fedora 16 for what's it's worth. Thanks in advance.

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• RAID 0 performance gains?

  - by NickAldwin

  I'm building a new computer over the summer. I'm fairly competent in computer hardware, and am thus building the computer from scratch. I have everything planned out, but I was wondering about RAID. I asked which RAID I should use earlier, but now that it's pretty clear that RAID 1 isn't really that great, I think I'll go with cloud-backup instead of disk-redundancy. However, I still face a choice: use two 1TB drives as two 1TB drives, or combine them into a RAID 0 striped array. Is there any performance gain at all? I know that if one drive dies, everything is gone, so is the performance gain worth it? I'm building a pretty advanced computer, with SLI video cards and a fast CPU, so I'm thinking RAID 0 would give me some good hard drive performance. From your experience, is RAID 0 viable?

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• Windows 7 Reading Proper Disk Usage Statistics on Mounted Volumes

  - by Troy Perkins

  I'm running windows 7 with 2 x 1.5 TBYTE Drives. The second internal drive is setup as a mounted volume as C:\Archives Clicking computer icon in windows explorer, it only shows capacity stats for C: and Not C:\Archives Also, the usage stats that do show for C: show to be 100% capacity red - yet the system runs fine. No warnings. Can someone explain this? I do have a lot of stuff on the c: drive, but I'm sure its not 1.5 TB worth and C:\Archives hardly has anything it. Thanks! Troy

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• How do I install a CentOS 5.5 in Xenserver?

  - by deweller

  When I try to install CentOS 5.5 in a new VM, I get an error that the installer is unable to retrieve stage2.img. I have verified the URL and I am able to download this file from a web browser. I suspect it is a networking/routing issue, but I can't figure out what is wrong. This is a new install of XenServer 5.6 on a new server. This server is remote, so I don't have physical access to the box - only ssh access. Can anyone give me some tips on what might be wrong here? Do I need to do something special to get a net install to work? For what its worth, I see the same error trying to install Debian Woody using a similar process. Thanks.

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• Can I run iOS apps on my Mac?

  - by Ken

  I've seen a number of neat iPhone apps recently that I'd like to use. In particular, there are a number of neat musical apps (metronome, tuner, etc.) that seem highly rated, and have no real Mac equivalent. I don't have a recent iPod/iPhone/iPad (I don't need portability or a phone and it seems silly to pay hundreds of dollars to run $15 worth of apps), but I do have an Intel (C2D) Mac. Can the iPhone dev simulator, or any other emulator, download and run iPhone App Store apps?

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• What proportion of DBA skills are platform-independent?

  - by Arkaaito

  Problem: we've grown to the point where we need a real DBA. Real DBAs are hard to find. Possible solution: I know someone with extensive experience (currently working on MSSQL) who is looking for a new DBA job. He might be willing to consider working for a MySQL shop (I haven't asked). Snag: I don't know to what extent MSSQL DBA skills map to MySQL DBA skills. I'm a developer, so I know enough about MySQL to develop apps which use it (including the basic performance-tuning, index selection, etc.), do schema design, and perform simple utility tasks (backup with mysqldump, scripting, etc.). I don't know anything about MSSQL. Nor do I actually know much about the boundaries of the DBA role. Can anyone with more experience - perhaps as a DBA - weigh in on this? Are there enough similarities between MSSQL and MySQL that it's worth asking a MSSQL DBA if he'd be interested in applying for a MySQL position?

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• How to use a custom .bashrc file on SSH login

  - by gsingh2011

  I've found that with the new company I'm working with I often have to access linux servers with relatively short lifetimes. On each of these servers I have an account, but whenever a new one is created, I have to go through the hassle of transferring over my .bashrc. It's possible however that in about a months time that server won't be around anymore. I also have to access many other servers for short periods of times (minutes) where it's just not worth it to transfer over my .bashrc but since I'm working on a lot of servers, this adds up to a lot of wasted time. I don't want to change anything on the servers, but I was wondering if there was a way to have a "per-connection" .bashrc, so whenever I would SSH to a server my settings would be used for that session. If this is possible, it would be nice if I could do the same thing with other configuration files, like gitconfig files.

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• Server Security

  - by mahatmanich

  I want to run my own root server (directly accessible from the web without a hardware firewall) with debian lenny, apache2, php5, mysql, postfix MTA, sftp (based on ssh) and maybe dns server. What measures/software would you recomend, and why, to secure this server down and minimalize the attack vector? Webapplications aside ... This is what I have so far: iptables (for gen. packet filtering) fail2ban (brute force attack defense) ssh (chang default, port disable root access) modsecurity - is really clumsy and a pain (any alternative here?) ?Sudo why should I use it? what is the advantage to normal user handling thinking about greensql for mysql www.greensql.net is tripwire worth looking at? snort? What am I missing? What is hot and what is not? Best practices? I like "KISS" - Keep it simple secure, I know it would be nice! Thanks in advance ...

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• Smart card / auditable access for rack KVM tray

  - by Mark Henderson

  Is there such a thing as a KVM Tray for a standard 19" rack whose use can be validated by a smartcard (or some other auditable authentication method)? It looks like we have a security requirement where just because users have a key to the rack doesn't mean they will be allowed to use the console inside the rack, and rather than just lock the console (and keep track of who has keys), we would prefer to be able to audit the actual user that was attached at the KVM. (It's worth mentioning that I'm aware of the Raritan devices, but they surely can't be the only ones) (If these things existed, I don't think half of the tratoirs that somehow manage to infiltrate CTU on the TV show 24 would ever get away with anything)

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• TRIM in centos 5.X?

  - by Frank Farmer

  I've got a bunch of centos 5 boxes with Intel X-25 drives (x25-m in dev, x25-e in prod, I think). We're seeing severely degraded disk performance on one of our dev boxes (which easily does 5+ gb of writes every day, meaning we write the full drive's worth of data several times a month). The box in question: Intel x25-m Ext3 (which doesn't support TRIM) centos 5 vmware ESXi Wikipedia mentions that newer versions of hdparm (which centos5 doesn't include) can bulk-TRIM free blocks. This utility also sounds potentially useful: http://blog.patshead.com/2009/12/a-quick-and-dirty-wipersh-fix-for-intel-x25-m.html Disk write performance has dropped to <1 MB/sec while copying a 300 meg directory on this system, as of a month or so ago -- it used to be able to perform the same copy operation at least 5 times faster. What can I do to recover performance on this system?

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• Q8300 Core-2 Quad vs X3360 Xeon

  - by alchemical

  I'm looking at this ABMX server, and trying to decide on the CPU. I'm purchasing 2 servers, to be used as dedicated web and DB servers for a web site that has low traffic now but could ramp up quickly. Just trying to decide if it is worth about $200 more (per server) for the Xeon vs the core-2. Passmark rates them at 3567 and 4153, which didn't seem that different. I'm not planning at this point to need virtualization. I did hear rumors that Xeon stands up better in a 24/7 server environment, but heard others say there wasn't that much difference. Planning to run Windows Server 2008, likely the R2 release, with 8GB RAM.

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• Kerberos SSO browser integration?

  - by MrZombie

  I'm installing a bunch of web apps for the office, and one of the wants would be Kerberos-managed SSO. Now, I have found some information on the matter, and I wondered, what browsers integrate Kerberos SSO? Of course I could just use the underlying web app to authenticate in case of lack of Kerberos capability, which is exactly the plan, but I'd like to know which browsers would work for that, so I can plan ahead and decide if it's even worth it to do that, which I believe it would considering that one of the web apps I'm implementing will be an ERP.

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• What usb-bootable utility should I use to copy SATA hard drives?

  - by Steve Brown

  I have a computer that only has two SATA connections and I need to copy one SATA hard drive to another. Since I have to unplug the CD drive to copy the drives I need a USB-bootable utility. I have an old school copy of Norton Ghost (CD based): Ghost has always worked well for me in the past - I see there is a new "version 15" out but I'm not sure if it is worth buying. A friend has Acronis True Image on a USB drive: We tried to use that on the computer but it was unable to copy both partitions (restore partition and main partition). Of course there may be some problem with the drive that is keeping Acronis from working (it is just exiting with a lame error about not being able to copy the disks and no error code or detailed information), but I'm interested in knowing if there is a better, more solid, or widely used solution that I should invest in. What usb-bootable utilities can I use to copy SATA hard drives?

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• UPS and power strip interactions?

  - by chaos

  Sometimes I hear that you shouldn't plug (UPS brand X / any UPS) into (power strip brand X / any power strip) because of some interaction leading to poorly conditioned power, reduced battery life, massive explosions spattering the room with battery acid, and so on. Sometimes I hear that it's the power strip that you shouldn't plug into the UPS. What I haven't gotten is a clear idea of how reliable these recommendations are or how generally/specifically they apply. Can anyone speak precisely and non-urban-legendfully on these UPS and power strip interactions, if there are in fact ones worth thinking about?

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• What are the implications of expanding an internal subnet mask?

  - by Philip

  Our network is currently working on a 192.168.0.x subnet, all controlled through DHCP, except for the few main servers who have hard-configured IP address settings. What would I kill if I changed the DHCP-published subnet mask from 255.255.255.0 to 255.255.0.0? The reason for doing this is not because we have a huge sudden influx of machines, but because I'd like to start partitioning specific devices into specific IP ranges (to be neat and tidy). For what its worth, I don' plan on changing the allocated DHCP address range, but rather want to move some of the reserved and excluded DHCP addresses out of the address pool. e.g. printers will be 192.168.2.x I will obviously need to change the subnet mask manually on my manually configured devices.

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• How restore qmail backup files

  - by Maysam

  We are using qmail as our mail application on a linux server. A few weeks ago our server crashed and we had everything installed from scratch and our users started to send & receive email again. The problem is they have lost their old emails. We have a back up of the whole qmail directory. But I don't know how to restore the old emails without losing the new ones. It's worth mentioning that I don't have any problem with restoring old sent mails. When I copy email files into .sent-mail/cur directory, I have them restored in sent box of users, but restoring files in /cur directory doesn't work for inbox emails and I can't get them restored.

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