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• Viewing a large-resolution VNC server through a small-resolution viewer in Ubuntu

  - by Madiyaan Damha

  I have two Ubuntu computers, one with a large screen resolution (1920x1600) that is running default ubuntu vnc server. I have another computer that has a resolution of about 1200x1024 that I use to vnc into the server (I use the default ubuntu vnc viewer). Now everything works fine except there are annoying scrollbars in the viewer because the server's desktop resolution is so much higher than the viewer's. Is there a way to: 1) Scale the server's desktop down to the viewer's resolution. I know there will be a loss of image quality, but I am willing to try it out. This should be something like how windows media player or vlc scales down the window (and does some interpolation of pixels). 2) Automatically shrink the resolution of the server to the client's when I connect and scale the resolution back when I disconnect. This seems like a less attractive solution. 3) Any other solution that gurus out there use? I am sure someone has experienced this before (annoying scroll bars) so there must be a solution out there. Thanks,

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• Need a VM for running a PHP Sandbox

  - by Phani

  I am working on Web application honeypot. It collects PHP files it receives (as part of an RFI attack) and runs them in order to return the result back to the attacker. The aim is to coax the bad guy into going further into his attack. Based on the answers to my SO question, I am looking at using VMs for running the PHP Sandbox. The honeypot itself consists of Python code and will be running in a Linux environment (preferably Ubuntu-like). These are some of the requirements: The VM should be a light weight as possible. We are going to distribute the code around and many people are going to use the VM along with the Python based honeypot. So, the installation and configuration should not be too difficult. The guest system would also be Linux as we are going to distribute the VM image around. It should be possible for the Python code outside to talk to the guest system. It would be passing on the PHP file to the guest system and will get the output result from it. It should be possible to automate the initial configuration of the VM (such as allocation of RAM etc.) I would like to randomize these settings in order to make the sandbox less 'fingerprintable' I have looked at OpenVZ and KVM so far. Are there any other VMs that I might look at? What do you recommend?

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• Writing a script for ash?

  - by rumtscho

  My VPN is behaving funny sometimes, and I have to restart it often. I wanted to write a script which does that for me. It doesn't have to be anything fancy, just a shortcut for the commands I have to type into the terminal. More specifically: it will look at the running processes. If it finds a running vpnc process, it will kill it. Then it will start vpnc. I've written bash scripts of similar complexity, but now I don't have a bash, only an ash. Until now, the only difference I noticed is that there are much less commands available, but then, I don't use it very often. So I have some questions. Is writing ash scripts different than writing bash scripts? Is there something specific to consider when doing it? When the script is ready, how can I deploy it? For bash, I just put the executable file under /usr/lib and run it by typing the file name into the command line, will this work with ash? Are there any special pitfalls to watch out for in the script I want to write? I think that the killing process part may get hairy, if I write something that kills the wrong process, but even then running the script shouldn't break anything permanently, right?

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• EEE PC Keyboard malfunctioning - Ctrl key "sticks" after 10 seconds

  - by DWilliams

  I was given a EEE PC belonging to a friend of a friend to fix. The keyboard did not appear to work at all. I spent a while testing out various things, blowing the keyboard out, checking for damage, and so on. Nothing appeared to be physically wrong. At first I noticed that the keyboard appeared to work just fine for 10 seconds (on average, sometimes more sometimes less) after being powered on. It had been restored to the factory default xandros installation with no user set up, so I couldn't get in to mess with things since I couldn't type to make a user. I made an ubuntu live USB to boot it from, and managed to get the boot order changed to boot from USB in the ~10 seconds of working keyboard I had (I don't think I've ever had to rush around BIOS menus that quickly). After I got Ubuntu up on it, I played around a bit more and determined that apparently the ctrl key is stuck down (not literally, but it's on all the time). If I open gedit, pressing the "o" key brings the open dialog, "s" opens the save dialog, and all other behaviour you would expect to see if you were holding down the control key. The only exception that I noticed is the "9" and "0" keys. They function normally. Figuring that out I made a xandros user with a name/password consisting of 9's and 0's. I couldn't find any options in Xandros that could potentially be helpful. I'm not familiar with EEE PCs. Is it safe to assume that the keyboard is simply dead or could there be another problem? I don't want to purchase another keyboard for him if that isn't going to fix the problem. The netbook doesn't show any obvious signs of damage but the owner is a biker and very often has it with him on the road so it's been subjected to a good bit of vibration.

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• iTunes Home Sharing only works one way between 2 WinXP PC's on the same LAN

  - by scunliffe

  Both PC's have the latest iTunes installed. PC (A) can "see" that there is a shared library "B library" but attempts to connect to it return this error message: The shared library "{Username}'s Library" is not responding (-3259) Check that any firewall software running on either the shared computer or this computer has been set to allow communication on port 3689. however the reverse works fine. e.g. PC (B) can "see" shared library "A library" and can access all content. Notes: Both PC's have Home Sharing enabled (turned off/on several times to verify). Both PC's have Windows Firewall turned on, but in the exceptions tab, iTunes is allowed, and Port 3689 is also added as a firewall exception (just in case) Both iTunes accounts have been "authorized" on both PC's Both PC's connect via LAN via D-Link DIR-615 router. In the advanced application rules, iTunes has also been added to allow traffic on port 3689 un-hindered. Is there any other magical setting/configuration option that I should be aware of and set in order to get this to work? I could care less about sharing apps etc. I just want the music sharing to work. Update: Solved! It turns out on PC (B) there were multiple accounts set up. 1 of the accounts had the checkbox checked under the windows firewall "On" option which states "No exceptions" thus even though it was added to the exception list on the main user account, this other account was blocking access.

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• Memory leak in Google Chrome

  - by jasondavis

  As a developer it is very common for me to have 2-3 different IDE's open, 10-15 google chrome windows which can hold up to 200 open tabs (I know I get out of hand some times), Photoshop, couple twitter bots for promo, and a few other programs but my system still runs fast and smooth. I have an i7 processor with 12gb ram. Now with all my usual stuff running my Physical memory is usually running around 50-60% however over the course of the day or much less even, I will gradually grow to 98% The highest Memory usage processes will be from Google Chrome, if I sort in the task manager by highest memory usage and end the 1 highest process which will be a google chrome one, my memory usage will jump back down to about 60%. Also by ending that 1 process, all my Chrome windows will remain open and in use, so it doesn't affect me at all by ending that process. Based on this research I am assuming that that 1 runaway process is likely the Adobe Flash as I also can say that it gets up to the 98% much faster when I am using flash items like video or music player. But even without using any of them it will still climb up to that high number eventually. Has anyone else experienced similar results?

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• process and memory issue on linux server

  - by zapping

  Need some assistance in analyzing apache and php process running on linux server. Its a 8-core intel processor with 4GB ram. When the website on it runs the top displays like this. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 23459 username1 16 0 151m 27m 8388 S 11.3 0.7 0:11.71 php5 23730 username1 16 0 151m 28m 8388 S 11.3 0.7 0:03.87 php5 23458 username1 16 0 151m 28m 8388 S 3.0 0.7 0:19.20 php5 16202 mysql 15 0 459m 38m 4624 S 0.7 1.0 62:33.81 mysqld 24141 nobody 15 0 311m 5832 2304 S 0.3 0.1 0:00.03 httpd Why does the command say php5 when the website is accessed. Both apache and php was preconfigured so not sure whats done there. Tried setting up the same site and db on a different server but on it the process shows httpd always and not php5. The site uses mysql db. The problem is server load seems to go till about 5.x when the website was access by about 16users. When the free -m command was given the output shows total used free shared buffers cached Mem: 3941 3727 213 0 236 2734 -/+ buffers/cache: 756 3184 Swap: 4095 0 4095 Lots of memory seems to be in cache and free memory is less. Even when the website is not accessed that is leaving it very much idle for about 2days the free memory showed just 190. When the site is accessed the free memory seems to be go till 90mb then it increases to about 150mb. It always seems to remain just about 200mb. Is it somehow related to the server load showing 5.x. Will adding some more RAM resolve the load issue?

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• Setup of HP ProCurve 2810-24G for iSCSI?

  - by 3molo

  Hi, I have a pair of ProCurve 2810-24G that I will use with a Dell Equallogic SAN and Vmware ESXi. Since ESXi does MPIO, I am a little uncertain on the configuration for links between the switches. Is a trunk the right way to go between the switches? I know that the ports for the SAN and the ESXi hosts should be untagged, so does that mean that I want tagged VLAN on the trunk ports? This is more or less the configuration: trunk 1-4 Trk1 Trunk snmp-server community "public" Unrestricted vlan 1 name "DEFAULT_VLAN" untagged 24,Trk1 ip address 10.180.3.1 255.255.255.0 no untagged 5-23 exit vlan 801 name "Storage" untagged 5-23 tagged Trk1 jumbo exit no fault-finder broadcast-storm stack commander "sanstack" spanning-tree spanning-tree Trk1 priority 4 spanning-tree force-version RSTP-operation The Equallogic PS4000 SAN has two controllers, with two network interfaces each. Dell recommends each controller to be connected to each of the switches. From vmware documentation, it seems creating one vmkernel per pNIC is recommended. With MPIO, this could allow for more than 1 Gbps throughput.

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• Lightweight Linux distro that includes developer tools? (or, the most BSD-like Linux)

  - by RevAaron

  I cut my teeth on Minix and Slackware 1.1, but I've been in the OS X Wilderness for the last few years. I'm trying to standardize on a Linux distribution for personal and work-related use on less powerful laptops and under virtualization. So far, NetBSD and OpenBSD are the best fit for my purposes- but after plenty of frustration I've come to the conclusion that I need to stick with Linux to get the hardware and software support that comes with it. What I like about NetBSD/OpenBSD that I'd like to keep: X, but no default KDE, GNOME or XFCE! A sensible /etc and dot file setup- startx calls xinit, xinit looks for ~/.xinitrc; nothing more complicated than that is needed. Command line tools and file-based configuration: I shouldn't need a GUI to connect to a WAP. Decent selection of binary packages; building from source is OK, but nothing source-only like Gentoo. pkg_add (BSD) and apt-get both have treated me well in the past. Modest RAM and HDD requirements: boot + X + awesome+ two xterms takes up 80 MB on OpenBSD and 240 MB on Debian 5 and Crunchbang In my experience, most "lightweight" and Live CDs focus on a nice desktop environment crammed into a CD or USB stick; once you add build-essentials you end up with something just about as bloated as Ubuntu or Debian full install. Crunchbang is a great example. Thanks in advance for all suggestions!

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• Swap space maxing out - JVM dying

  - by travega

  I have a server running 3 WordPress instances, MySql, Apache and the play framework 2.0 on 64m initial & max heap. If I increase the max heap of the JVM that play is running in even by 16m I see the 128m of swap space steadily fill up until the the JVM dies. I notice that it is only when I am plugging away at the wordpress sites that the JVM will die. I assume this is because the JVM is not asking for memory at the time so gets collected. I notice that when I restart Apache I reclaim about half of my swap and RAM. So is there some way I can configure apache to consume less memory? Also what could be causing the swap space to get so heavily thrashed with just 16m added to the max heap size of the JVM? Server running: Ubuntu 12.04 RAM: 408m Swap: 128m Apache mods: alias.conf alias.load auth_basic.load authn_file.load authz_default.load authz_groupfile.load authz_host.load authz_user.load autoindex.conf autoindex.load cgi.load deflate.conf deflate.load dir.conf dir.load env.load mime.conf mime.load negotiation.conf negotiation.load php5.conf php5.load proxy_ajp.load proxy_balancer.conf proxy_balancer.load proxy.conf proxy_connect.load proxy_ftp.conf proxy_ftp.load proxy_http.load proxy.load reqtimeout.conf reqtimeout.load rewrite.load setenvif.conf setenvif.load status.conf status.load

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• Cannot upload files bigger than 8GB to Amazon S3 by multi-part upload due to broken pipe

  - by spencerho

  I implemented S3 multi-part upload, both high level and low level version, based on the sample code from http://docs.amazonwebservices.com/AmazonS3/latest/dev/index.html?HLuploadFileJava.html and http://docs.amazonwebservices.com/AmazonS3/latest/dev/index.html?llJavaUploadFile.html When I uploaded files of size less than 4 GB, the upload processes completed without any problem. When I uploaded a file of size 13 GB, the code started to show IO exception, broken pipes. After retries, it still failed. Here is the way to repeat the scenario. Take 1.1.7.1 release, create a new bucket in US standard region create a large EC2 instance as the client to upload file create a file of 13GB in size on the EC2 instance. run the sample code on either one of the high-level or low-level API S3 documentation pages from the EC2 instance test either one of the three part size: default part size (5 MB) or set the part size to 100,000,000 or 200,000,000 bytes. So far the problem shows up consistently. I attached here a tcpdump file for you to compare. In there, the host on the S3 side kept resetting the socket.

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• Outlook slow to open attachments

  - by Alistair McMillan

  When a colleague tries to open attachments in her email (Outlook 2003 talking to an Exchange 2007 server) they talk ages to open. The files are relatively small, all less than 1MB. We've tried creating a new Windows profile for the user and tried creating new Outlook profiles, however that hasn't made any difference. And we've tried accessing her account from someone else's PC, and the attachments open immediately there. The only thing that might provide a clue is that Process Monitor shows Outlook on her PC trying to write the file to a folder within the user's "Temporary Internet Files" folder with FAST I/O DISALLOWED errors. Can't find a lot of useful information on that message online though. What causes the FAST I/O DISALLOWED errors? And would that make opening attachments so incredibly slow that opening a < 1MB file can take a matter of minutes? UPDATE: Discovered that this isn't just an issue with Outlook. Other files being accessed over the network show the same FAST I/O DISALLOWED errors in Process Monitor. The problem is just more noticeable with Outlook, because although other applications take a while to open files it isn't a matter of minutes.

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• mcelog doesn't fails to start PUIAS 6.4 amd hardware

  - by Predrag Punosevac

  Folks, I am a total Linux n00b. I am trying to deploy mcelog on one of my computing nodes running PUIAS 6.4 (i86_64) [root@lov3 edac]# uname -a Linux lov3.mylab.org 2.6.32-358.18.1.el6.x86_64 #1 SMP Tue Aug 27 22:40:32 EDT 2013 x86_64 x86_64 x86_64 GNU/Linux a free clone of Red Hat 6.4 on AMD hardware [root@lov3 mcelog]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 64 On-line CPU(s) list: 0-63 Thread(s) per core: 2 Core(s) per socket: 8 Socket(s): 4 NUMA node(s): 8 Vendor ID: AuthenticAMD CPU family: 21 Model: 2 Stepping: 0 CPU MHz: 1400.000 BogoMIPS: 4999.30 Virtualization: AMD-V L1d cache: 16K L1i cache: 64K L2 cache: 2048K L3 cache: 6144K NUMA node0 CPU(s): 0-7 NUMA node1 CPU(s): 8-15 NUMA node2 CPU(s): 16-23 NUMA node3 CPU(s): 24-31 NUMA node4 CPU(s): 32-39 NUMA node5 CPU(s): 40-47 NUMA node6 CPU(s): 48-55 NUMA node7 CPU(s): 56-63 My mcelog.conf file is more or less default apart of the fact that I would like to run mcelog as a daemon and to log errors. When I start mcelog [root@lov3 mcelog]# mcelog --config-file mcelog.conf AMD Processor family 21: Please load edac_mce_amd module. However the module is present [root@lov3 mcelog]# locate edac_mce_amd.ko /lib/modules/2.6.32-358.18.1.el6.x86_64/kernel/drivers/edac/edac_mce_amd.ko /lib/modules/2.6.32-358.el6.x86_64/kernel/drivers/edac/edac_mce_amd.ko and loaded [root@lov3 edac]# lsmod | grep mce edac_mce_amd 14705 1 amd64_edac_mod Is there anything that I can do to get mcelog working? The only reference I found is this thread http://lists.centos.org/pipermail/centos/2012-November/130226.html

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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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• Sharing large (multi-Gb) files with clients

  - by Tim Long

  I wasn't sure if this was the best place for this question, but I think it is squarely in the realm of the IT admin so that's the reason I put it here. We need to share large files (several Gigabytes) with external clients. We need a simple way of reliably and automatically publishing these files so that clients can then download them. Our organization has Windows desktops and a Windows SBS 2011 server. Sharing from our server is probably suboptimal from the client's perspective, because of the low upstream bandwidth of typical ADSL (around 1 Mbps) - it would take all day (9 hours for a 4Gb file) for the client to download the file. Uploading to a 3rd party sever is good for the client but painful for us, because we then have to deal with a multi-hour upload. Uploading to a third-part server would be less problematic if it could be made reliable and automatic, e.g. something like a Groove/SharePoint Workspace, simply drop the file in and wait for it to synchronize - but Groove has a 2Gb limit which is not big enough. So ideally I'd like a service with the following attributes: Must work for files of at least 5Gb, preferably 10Gb Once the transfer is started, it must be reliable (i.e. not sensitive to disconnections and service outages) and completely automatic Ideally, the sender would get a notification when the transfer completes. Has to work with Windows based systems. Any suggestions?

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• Finding a backup and synchronization solution

  - by Andrea Zilio

  I'm having difficulties to find a backup and synchronization solution with the following characteristics: Cross-platform: Windows, Linux, Mac Offsite backup (so Internet Backup) Data deduplication Transfer only new/modified bits of modified files Secure: Data encrypted before leaving computer Maintain multiple versions of files (even deleted files) Folder synchronization integrated with backup and across multiple computers connected to the internet (not necessarily in the same LAN) I think that the Folder Sync feature needs a better explanation. The use case is this: you have a desktop pc and a laptop. The desktop pc contains a folder with some files and this folder is part of the backup (so it was selected to be backed up). The laptop does not contain that folder or that files at all. Then you're abroad with your laptop and you need that folder. So you want to be able to open the backup program, select that folder from the backup and download it in your laptop mantaining it synchronized with the backed up version. When you then come back home and switch on your desktop pc you want the folder we're talking about to be updated in the desktop PC. Does anyone knows any service with all these features? I've only found SpiderOak to support all the features I've mentioned but I'm not completely satisfied by the time taken to complete a backup. Sometimes it seems to hang for minutes with no reasons at all and folder synchronization occurs only after all files are backed up (instead folder sync should have a separated queue independent from other backup operations and synchronization should occurs frequently... for example every 5 minutes or less, independently from the frequency of normal backup operations)

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• Reorganize Primary/Recovery Partitions and then install Ubuntu Netbook Remix?

  - by Wesley

  Hi all, I have a Samsung N120 netbook (with upgraded 2GB RAM). I recently got a new hard drive and motherboard for it because the original parts were faulty. However, when I got it back, whoever was working on it decided to make my primary partition ~40GB in size, compared to (what appears to be) the recovery partition, which is around 100GB in size. Firstly, I want to make the recovery partition much smaller (around ~10GB or smaller, if possible) and then make my primary partition fill the rest of the space. After that, I want to install Ubuntu Netbook Remix 9.10. I don't know if this is installed within Windows like Ubuntu 9.10 but I want both XP and UNR on my machine at the same time. So basically... how do I resize my primary and recovery partitions such that the recovery is about 10GB or less and the primary fills the rest? Secondly, is UNR installed within Windows? (If not, would it create its own partition on my hard drive, along with the XP partition, and the recovery partition?) Thanks in advance.

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• how to correctly mount fat32 partition in Ubuntu in order to preserve case

  - by Dean

  I've found there are couple of problems might be related how my FAT32 partition was mounted. I hope you can help me to solve the problem. I also included the command I used to help others when they find this post, sorry to those might feel I should use less space. I've the following file structures on my disk dean@notebook:~$ sudo fdisk -l Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x08860886 Device Boot Start End Blocks Id System /dev/sda1 * 1 13 102400 7 HPFS/NTFS Partition 1 does not end on cylinder boundary. /dev/sda2 13 5737 45978624 7 HPFS/NTFS /dev/sda3 5738 10600 39062047+ 83 Linux /dev/sda4 10601 19457 71143852+ 5 Extended /dev/sda5 10601 11208 4883728+ 82 Linux swap / Solaris /dev/sda6 11209 15033 30720000 b W95 FAT32 /dev/sda7 15033 19457 35537920 7 HPFS/NTFS In the etc/fstab I've got UUID=91c57a65-dc53-476b-b219-28dac3682d31 / ext4 defaults 0 1 UUID=BEA2A8AFA2A86D99 /media/NTFS ntfs-3g quiet,defaults,locale=en_US.utf8,umask=0 0 0 UUID=0C0C-9BB3 /media/FAT32 vfat user,auto,utf8,fmask=0111,dmask=0000,uid=1000 0 0 /dev/sda5 swap swap sw 0 0 /dev/sda1 /media/sda1 ntfs nls=iso8859-1,ro,noauto,umask=000 0 0 /dev/sda2 /media/sda2 ntfs nls=iso8859-1,ro,noauto,umask=000 0 0 I checked my id using id and I've got dean@notebook:~$ id uid=1000(dean) gid=1000(dean) groups=4(adm),20(dialout),24(cdrom),46(plugdev),103(fuse),104(lpadmin),115(admin),120(sambashare),1000(dean) I don't know why with these settings I still have problem of using svn like in this one Thank you for your help!

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• Mouse click-focus wanders in vmPlayer 3.0 dual-monitor

  - by Gary M. Mugford

  Previously, a WinXPSP3 session running on a WinXPSP3 host computer ran perfectly fine in a dual monitor setup. No issues with vmPlayer 2.x. BEFORE updating to vmPlayer 3, the following problem cropped up. When clicking in a single monitor, you would get exactly what you expected. However, when the display was stretched across two monitors, the clicking would be to the left of the mouse cursor. The farther RIGHT you were, the farther left the click would occur. In other words, if you clicked on the system menu of a window in the upper left of a window on the left monitor, you would get the system menu. Move half a screen to your right and the click would be on an item about a quarter of the way over, rather than where you were clicking. And by going all the way to the far right of the right monitor, you could bring up a right-click menu on the far right of the LEFT monitor. I Hope I have described this properly. It's confusing, even in words. In single monitor mode, everything works perfectly fine. If, instead of using either UltraMon or DisplayFusion, you run a single desktop across both monitors (3200x1600), there are no mousing issues. Unfortunately, having two 1600x1200 monitors, that depth of 1600 makes that hack less than useable. My graphic card won't offer anything resembling 3200x1200. vmPlayer 3.0 did not alleviate the situation. The microsoft mouse drivers are up to date and so are the nVidia card drivers. Any ideas?

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• Problems sending email using .Net's SmtpClient

  - by Jason Haley

  I've been looking through questions on Stackoverflow and Serverfault but haven't found the same problem mentioned - though that may be because I just don't know enough about how email works to understand that some of the questions are really the same as mine ... here's my situation: I have a web application that uses .Net's SmtpClient to send email. The configuration of the SmtpClient uses a smtp server, username and password. The SmtpClient code executes on a server that has an ip address not in the domain the smtp server is in. In most cases the emails go without a problem - but not AOL (and maybe others - but that is one we know for sure right now). When I look at the headers in the message that was kicked back from AOL it has one less line than the successful messages hotmail gets: AOL Bad Message: Received: from WEBSVRNAME ([##.###.###.###]) by domainofsmtp.com with MailEnable ESMTP; Mon, 18 Jun 2012 09:48:24 -0500 MIME-Version: 1.0 From: "[email protected]" <[email protected]> ... Good Hotmail Message: Received: from mail.domainofsmtp.com ([###.###.###.###]) by subdomainsof.hotmail.com with Microsoft SMTPSVC(6.0.3790.4900); Thu, 21 Jun 2012 09:29:13 -0700 Received: from WEBSVRNAME ([##.###.###.###]) by domainofsmtp.com with MailEnable ESMTP; Thu, 21 Jun 2012 11:29:03 -0500 MIME-Version: 1.0 From: "[email protected]" <[email protected]> ... Notice the hotmail message headers has an additional line. I'm confused as to why the Web server's name and ip address are even in the headers since I thought I was using the SmtpClient to go through the smtp server (hence the need for the username and password of a valid email box). I've read about SPFs, DKIM and SenderID's but at this point I'm not sure if I would need to do something with the web server (and its ip/domain) or the domain the smtp is coming from. Has anyone had to do anything similiar before? Am I using the smtp server as a relay? Any help on how to describe what I'm doing would also help.

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• iSCSI SAN Implementation with several ESXi hosts and two Equallogic SANs

  - by Sergey

  I work for a small state college. We currently have 4 ESXi hosts (all made by Dell), 2 EqualLogic SANs (PS4000 and PS4100) and a bunch of old HP Procurve switches. The current setup is very far from being redundant and fast so we want to improve it. I read several threads but get even more confused. The Procurve Switches are 2824. I know they don't support Jumbo Frames and Flow Control at the same time, but we have plans to upgrade to something like Procurve 3500yl. Any suggestions? I heard Dell Powerconnects 6xxx are pretty good but I'm not sure how they compare to HPs. There will be a 4-port Etherchannel (Link Aggregation) between the switches, and all control modules on SAN will be connected to different switches. Is there anything that will make the setup better? Are there better switches then Procurves 3500yl that cost less than 5k? What kind of bandwidth can I expect between ESXi hosts (they will also be connected to 2824 with multiple cables) and SANs?

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• Viewing a large-resolution VNC server through a small-resolution viewer in Ubuntu

  - by Madiyaan Damha

  I have two Ubuntu computers, one with a large screen resolution (1920x1600) that is running the default Ubuntu VNC server. I have another computer that has a resolution of about 1200x1024 that I use to VNC into the server using the default Ubuntu VNC viewer). Now everything works fine except there are annoying scrollbars in the viewer because the server's desktop resolution is so much higher than the viewer's. Is there a way to: Scale the server's desktop down to the viewer's resolution. I know there will be a loss of image quality, but I am willing to try it out. This should be something like how Windows Media Player or VLC scales down the window (and does some interpolation of pixels). Automatically shrink the resolution of the server to the client's when I connect and scale the resolution back when I disconnect. This seems like a less attractive solution. Any other solution that gurus out there use? I am sure someone has experienced this before (annoying scroll bars) so there must be a solution out there.

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• Apache+PHP on Windows Server 2008

  - by Álvaro G. Vicario

  I've installed Apache/2.2 and PHP/5.3 lots of times under Windows XP, Windows Vista and Windows Server 2003. The official *.msi installers work fine and configure everything. Now I need to install them into a Windows Server 2008 R2 Standard 64-bit box and I'm facing nothing but problems: There are no official 64 bit binaries for Apache and no binaries at all for PHP (official or third-party). It's alright, I'll do with good 32 bits, but it's kind of surprising. Official documentation is vague, generic and completely unaware of UAC or any recent Windows security feature. The PHP installer is unable to configure mod_php and the Apache installer is unable to configure... well, Apache. After three hours I've finally reached the point where I'm installing everything in the root folder and assigning full control access to all users in all files and directories and all I've got is a PHP-less Apache server that's able to serve static pages. So I guess it's time to stop and think. My question is: Has anyone installed an Apache+PHP production server under Windows Server 2008 in a serious, secure and reliable way and documented the whole process? Or should I just find a bundle like XAMPP and the like that requires no installation? === EDIT === I've installed Xampp Lite 1.7.3 and everything was working in 5 minutes. I'd still like to find some documentation about installing the original packages: XAMPP installs tons of stuff I don't need and offers no tool to enable and disable PHP extensions.

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• IDE/PATA high-speed hard drive dock

  - by wfaulk

  I frequently need to access bare drives for backups and need a quick, high-speed way to deal with them. There are a multitude of SATA hard drive docks (for example), but I have a lot of IDE/PATA (hereafter "IDE") drives that I would like to be able to use similarly. There are IDE-to-SATA adapters so you can plug your IDE hard drive into a SATA port, so I don't see any reason why you couldn't use the same technology to have a native dock, yet none seems to exist. Now, I'm aware that 3.5" IDE drives do not have a specification for the layout of the connector, and therefore can't be slapped into a dock the same way a SATA drive could, but 2.5" PATA drives do. In fact, I'm not terribly interested in supporting 3.5" drives. It would be nice, but I deal with them far less frequently than 2.5" drives. Also, I'd very much like for the connection to the computer be faster than USB, preferably eSATA, I don't want to be spending time mounting a drive inside an enclosure, I don't want bare drives lying around with a cable hanging off of them, and I'd prefer a single dock rather than two. What seems like the ideal solution to me would be a regular SATA→eSATA dock and some sort of screwless adapter for IDE drives, but I'm open to any suggestions, regardless of my stated preferences, but which are, in some sort of order of preference: high-speed (faster than USB, at least) holder for drive (not just a cable) no complicated enclosure support for 3.5" IDE drives single dock Updates: Here's a 3.5" IDE to 3.5" SATA docking adapter that could be part of the solution. Weird. I figured that would be the impossible part. I was hoping to find something like this 2.5" to 3.5" SATA chassis that would take a 44-pin IDE drive internally. It looks like the Vantec EZ Swap EX comes awfully close. It has its own bay dock, but it looks like the SATA ports on the back are spaced properly, even if they're not aligned quite properly. Unfortunately, the proper position is at the very edge of the drive, which means that the docks' connectors are at the very edge of their recesses, which means there's no way to fit it in there.

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• Rename a Network Printer win Win 7

  - by Alex

  Seems this is a common question but the answers regularly miss the point. I have a server. Server has some printers connected. Server has all drivers for x32 & x64 OS PLUS ALL DEFAULTS set. Server also manages print queue. I have many workstations, all need to use the printers. All NEED to have drivers print queue and DEFAULTS propagated from server. Now.... When I add the printers on the workstations, I get: "ABC Printer on SERVER123" I need something less long - just "ABC Printer" So how? Tip: Please don't show me how to change the name of your locally installed printer. I know how to do this - I am particularly interested in shared printers that look like "ABC Printer on SERVER123" Tip: Installing the driver with a local port wont cut it because then I loose the server propagated defaults, the driver updates and I need to run around with driver disks/confuse trembling users with hard things like choosing drivers. I am happy for a hack if there is no official way to do this in the group policy.... I tried looking in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Printers on the workstation machines but those are only local printers :( I can see the network printer details on the workstations here: HKEY_USERS[Some GUID]\Printers\Connections But there is nothing obvious like a description string... Can anyone help with this?

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