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  • My server appears to have been hacked+ scanssh run by zabbix is it normal?

    - by Niro
    I'm running a few EC2/Scalr instances with zabbix monitoring. I received complaints about one of my servers port scanning other servers. the logs show it is accessing port 22 on consecutive IP addresses. I looked at the processes list and saw scanssh is running under the user Zabbix. My question is- Is scanssh part of zabbix? Is it suppesd to run? I have active autodiscovery on zabbix but it is looking at another IP addresses and definately not port 20. Is it possible that something in the config of zabbix agent is controlling it and not the settings on zabbix server? What can I do to find out if zabbix is somehow misbehaving or it is a hacker? Any advice is highly appreciated.

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  • Can we connect a laptop to an external normal monitor ?

    - by Nishant
    Can we connect a LAPTOP to an external monitor ? Here is my problem - http://superuser.com/questions/120269/compaq-presario-laptop-monitor-problems I want to buy a external monitor but the problem is that they come at huge cost and probably getting a new laptop or netbook seems wiser. So I am looking for cheap solutions .

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  • Is it normal for an AC adapter to drop voltage if it's not used by a laptop?

    - by leladax
    I'm currently investigating the livelihood of a laptop adaptor and I noticed, unlike another adaptor it drops voltage to almost zero after I also attempt to measure its current [while it did show voltage at first, before measuring current]. The other adaptor normally shows voltage and then normally shows some current and then if it turns to measure voltage, it shows it normally again. I assume the adaptor is faulty, however, I want to make sure if laptop adaptors turn off themselves if they aren't used normally by a laptop.

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  • How to make an "import image" button/field in a PDF form?

    - by Joe
    How to make an "import image" button/field in a PDF form? I am designing a "Lost Pet" poster for a local animal shelter. The idea is to make a PDF file that users of the shelter's website can download, insert their pet's information, and then print it out if their pet goes missing. I will be designing the poster in InDesign CS3, and then exporting it to a PDF file. I will then add form fields for the user to fill out. I am ok with making text entry form fields. That is a simple matter. What's not so simple is figuring out a way to allow the user to insert a photo of their lost pet into the PDF, save the file, and then print it out with the photo in it. I am running Adobe Acrobat Professional 8. I am running it on a Mac. All of the searches I've done have told me that if I was running Acrobat in Windows, I'd have access to this other program called LiveCycle Designer which has pre-built form item libraries, including a Image Field. But I cannot find any similar option on the Mac version. Has anyone has any experience doing something like this? If so, I could certainly use some tips on making this work. Just a quick clarification... This is a volunteer design project that I am doing for the shelter, so I don't want to spend money on any extra software/addons at all. I am hoping this can be done somehow with the pre-existing software I have.

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  • I can't get my PC to start up by a normal way.

    - by ssice
    I couldn't write a more accurate title. I am just unable to start the computer by pressing the Power On button. I checked the Power Supply and it seems to give good voltage values in every pin. And this is not a BIOS malfunction because of bad overclocking or anything that may come to your mind. And I will tell you why. It happens that EPS (or any ATX-based) power supply has the ability to be powered-on by the Motherboard by jumping the 13th pin of the 24-pin-ATX-connector to COM/GND. I did it, after pushing the power on button (without any visual response) and, pwhaa! The machine turned on. I was able to read (and even write, if I wanted) BIOS values and then start any OS installed. Machine starts, so it's not any kind of misconfiguration. It seems some hardware related. I am able to power the machine on only if I already pushed the power on button. Though pushing it without jumping the 13th pin to ground for a second does not power the machine. Of course, jumping the pin without pushing the power on button does not tell the motherboard anything, so the computer would not start up either. It's as if the logic that connects the power button with the 13th pin derivation to GND was unable to be activated. What can be the issue? How can I solve it? My configuration is as follows: CPU: AMD Phenom 9850 X4 Black Edition MB: ASUS Formula II AM2 RAM: 2x2GB Corsair Dominator 5-5-5-15 2T @ 1066MHz DDR2 Tested also with only 1 module GPU: 2x XFX nVIDIA GeForce 9600 GT XxX Alpha Dog Edition @ Core: 540Mhz [SLi] Power Supply: Xilence 700W (ATX 12V 2.3 / EPS 12V 2.92 compatible) PS: I know the machine is like 2 years old. I hardly use it now, but my parents do.

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  • Start a ZFS RAIDZ zpool with two discs then add a third?

    - by Doug S.
    Let's say I have two 2TB HDDs and I want to start my first ZFS zpool. Is it possible to create a RAIDZ with just those two discs, giving me 2TB of usable storage (if I understand it right) and then later add another 2TB HDD bringing the total to 4TB of usable storage. Am I correct or does there need to be three HDDs to start with? The reason I ask is I already have one 2TB drive I'm using that's full of files. I want to transition to a zpool but I'd rather only buy two more 2TB drives if I can. From what I understand, RAIDZ behaves similarly to RAID5 (with some major differences, I know, but in terms of capacity). However, RAID5 requires 3+ drives. I was wondering if RAIDZ has the same requirement. If I have to, I can buy the three drives and just start there, later adding the fourth, but if I could start with two and move to three that would save me $80.

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  • On Windows 7, how can I tell if a recording is multi-channel without third party tools? [migrated]

    - by engineerchuan
    A customer has an audio that is confidential and can't send it to me. He also would not like to install other tools. He has a basic Windows 7 install. Is there any way to tell whether the recording is one channel or two channel? Normally, I would just get the audio and soxi it. Or, I would tell him to install Audacity or equivalent sound editor and open it up. I also thought that if you right clicked and looked at the size, bit rate, and length, you could get number of channels but bit rate already factors in number of channels. Sorry I'm not giving you a lot to work with.

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  • What's the difference between a normal ActiveX killbit update and one for IDX?

    - by Bob
    I'm looking back at some old MS security bulletin for distribution to new clients and when I look at downloads for the last set of MS ActiveX killbits, KB article here, under each platform I see links with the term IDX. For instance there will be an entry that says "For Windows 7 for 32-bit versions" and then one a few rows down that says "For Windows 7 IDX for 32-bit versions". What's the difference between the two? I understand from a little digging that idx is one of the field names for the database that ActiveX controls are stored in, but that's not really helpful.

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  • Decrease in disk performance after partitioning and encryption, is this much of a drop normal?

    - by Biohazard
    I have a server that I only have remote access to. Earlier in the week I repartitioned the 2 disk raid as follows: Filesystem Size Used Avail Use% Mounted on /dev/mapper/sda1_crypt 363G 1.8G 343G 1% / tmpfs 2.0G 0 2.0G 0% /lib/init/rw udev 2.0G 140K 2.0G 1% /dev tmpfs 2.0G 0 2.0G 0% /dev/shm /dev/sda5 461M 26M 412M 6% /boot /dev/sda7 179G 8.6G 162G 6% /data The raid consists of 2 x 300gb SAS 15k disks. Prior to the changes I made, it was being used as a single unencrypted root parition and hdparm -t /dev/sda was giving readings around 240mb/s, which I still get if I do it now: /dev/sda: Timing buffered disk reads: 730 MB in 3.00 seconds = 243.06 MB/sec Since the repartition and encryption, I get the following on the separate partitions: Unencrypted /dev/sda7: /dev/sda7: Timing buffered disk reads: 540 MB in 3.00 seconds = 179.78 MB/sec Unencrypted /dev/sda5: /dev/sda5: Timing buffered disk reads: 476 MB in 2.55 seconds = 186.86 MB/sec Encrypted /dev/mapper/sda1_crypt: /dev/mapper/sda1_crypt: Timing buffered disk reads: 150 MB in 3.03 seconds = 49.54 MB/sec I expected a drop in performance on the encrypted partition, but not that much, but I didn't expect I would get a drop in performance on the other partitions at all. The other hardware in the server is: 2 x Quad Core Intel(R) Xeon(R) CPU E5405 @ 2.00GHz and 4gb RAM $ cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 32 Lun: 00 Vendor: DP Model: BACKPLANE Rev: 1.05 Type: Enclosure ANSI SCSI revision: 05 Host: scsi0 Channel: 02 Id: 00 Lun: 00 Vendor: DELL Model: PERC 6/i Rev: 1.11 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: HL-DT-ST Model: CD-ROM GCR-8240N Rev: 1.10 Type: CD-ROM ANSI SCSI revision: 05 I'm guessing this means the server has a PERC 6/i RAID controller? The encryption was done with default settings during debian 6 installation. I can't recall the exact specifics and am not sure how I go about finding them? Thanks

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  • Is it possible to not trigger my normal search highlighting when using search as a movement?

    - by Nathan Long
    When I do a search in vim, I like to have my results highlighted and super-visible, so I give them a bright yellow background and a black foreground in my .vimrc. " When highlighting search terms, make sure text is contrasting colors :highlight Search guibg=yellow guifg=black (This is for GUI versions of vim, like MacVim or Gvim; for command-line, you'd use ctermbg and ctermfg.) But I sometimes use search as a movement, as in c/\foo - "change from the cursor to the next occurrence of foo." In that case, I don't want all the occurrences of foo to be highlighted. Can I turn off highlighting in cases where search is used as a movement?

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  • On Windows 7, how can I tell if a recording is multi-channel without third party tools?

    - by engineerchuan
    A customer has an audio that is confidential and can't send it to me. He also would not like to install other tools. He has a basic Windows 7 install. Is there any way to tell whether the recording is one channel or two channel? Normally, I would just get the audio and soxi it. Or, I would tell him to install Audacity or equivalent sound editor and open it up. I also thought that if you right clicked and looked at the size, bit rate, and length, you could get number of channels but bit rate already factors in number of channels. Sorry I'm not giving you a lot to work with.

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  • Is it normal to give 'users' administrator access to their company PC?

    - by Phillipe B
    Hi, I have a user who wants to be a administrator of his work PC, he's made some story up about how he can't work without it so I'm told to "fix it" (as if it is a fault he's logged on as a user!). My IT co-workers and I don't login as administrators due to viruses/malware getting a foot hold and setting themselves up as servers to distribute an attack (yes this happened in the past). What is the 'norm' for your network users and how do you handle requests for administrator access? Thanks

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  • RESOLVED Why does IPtables's NAT stop working when I enable the firewall's third interface?

    - by Kronick
    On my firewall I've three interfaces : eth0 : public IP (46.X.X.X.) eth0:0 public IP (46.X.X.Y.) eth1 : public IP (88.X.X.X.) eth2 : private LAN (172.X.X.X) I've setup a basic NAT which works great until I turn on the eth1 interface, I basically loose the connectivity. When I turn off the interface (ifconfig eth1 down) then the NAT re-work. I've added some policy routing via iproute, which makes my three public IP's available. I don't understand why turning on eth1 on makes the LAN unavailable. PS : weirder ; when I turn on eth1 BUT remove the NAT, then the firewall is accessible by using the public IPS. So to me it's exclusively a NAT issue, since without the NAT the network works while with the NAT without the second public interface, the NAT does work. Regards EDIT : I've been able to make it work by using iproute2 rules. That was definitely a routing issue. Here is what I did : ip rule add prio 50 table main ip rule add prio 201 from ip1/netmask table 201 ip rule add prio 202 from ip2/netmask table 202 ip route add default via gateway1 dev interface1 src ip1 proto static table 201 ip route append prohibit default table 201 metric 1 proto static ip route add default via gateway2 dev interface2 src ip2 proto static table 202 ip route append prohibit default table 202 metric 1 proto static # mutipath ip rule add prio 221 table 221 ip route add default table 221 proto static \ nexthop via gateway1 dev interface1 weight 2\ nexthop via gateway2 dev interface2 weight 3

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  • raid 5 creation (using mdadm) lots of read/writes on creation: is this normal?

    - by Gbrits
    I created a software raid 5 disk using: mdadm -C /dev/md2 -l5 -n4 /dev/sd[i-l] at the same time I'm using dstat to see io-activity: dstat -c -d -D total,sda1,md2,sdi,sdj,sdk,sdl -l -m -n and notice that disks sd[i-k] are all read from and sdl is written to. Now, I do understand that raid5 has to be configured, but it takes a really long time and all disks are clean & formatted (using xfs) so I figure there might be some kind of shortcut to skip (unnecessary? ) checking.. Is it? The creation is part of a time-critical nightly batch-process (run on amazon ec2) so it's not a one-time thing. Thanks, Geert-Jan

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  • What are the possible problems, when wget returns code 500 but same request works in normal browsers?

    - by markus
    What should I be looking for, when wget returns 500 but the same URL works fine in my web browser? I don't see any access_log entries that seem to be related to the error. DEBUG output created by Wget 1.14 on linux-gnu. <SSL negotiation info stripped out> ---request begin--- GET /survey/de/tools/clear-caches/password/<some-token> HTTP/1.1 User-Agent: Wget/1.14 (linux-gnu) Accept: */* Host: testing.thesurveylab.net Connection: Keep-Alive ---request end--- HTTP request sent, awaiting response... ---response begin--- HTTP/1.0 500 Internal Server Error Date: Wed, 12 Dec 2012 14:53:07 GMT Server: Apache/2.2.3 (CentOS) Set-Cookie: blueprint2-staging=8jnbmkqapl30hjkgo0u6956pd1; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Strict-Transport-Security: max-age=8640000;includeSubdomains X-UA-Compatible: IE=Edge,chrome=1 Content-Length: 5 Connection: close Content-Type: text/html; charset=UTF-8 ---response end--- 500 Internal Server Error Stored cookie testing.thesurveylab.net -1 (ANY) / <session> <insecure> [expiry none] blueprint2-staging 8jnbmkqapl30hjkgo0u6956pd1 Closed 3/SSL 0x0000000001f33430 2012-12-12 15:53:07 ERROR 500: Internal Server Error.

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  • If a server is performing slowly, will ping still appear normal?

    - by blarg
    I'm trying to troubleshoot a periodic slow application problem without direct access to the network. There is a server on one network providing webpages to a VLAN on a different network via a DMZ. I'm told that when the pages were loading slowly the user pinged the server and saw an extremely slow response time. My question is, as ping is minimal in network load and a different protocol from the pages, would a slow ping be caused by a slow server, or would it indicate a slow network?

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  • How can one implement RAID1 with a Dell Latitude laptop containing one normal hard drive, and one hard drive in an external bay?

    - by user12583188
    OS: Win7 professional Laptop: latitude e6420 The answer to this question should address how to deploy RAID1 software wise on a dell latitude e6420. I have two Hitachi Z5K500 320GB drives (new). There is one hard drive (320GB capacity) in the system now, which contains the current installation that I would prefer to keep. The drive currently inside the laptop will be replaced with one of the Hitachi drives, and the other Hitachi drive will be fitted into the laptop by way of a Dell hard drive "caddy" enclosure, which inserts into the media bay of the laptop (you remove the cd-rom bay, insert hd-bay).

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  • Which permissions need to be assigned to a normal user to allow him to change SHARE permissions?

    - by guest
    As in the subject - I am wondering, which permissions (if it is possible) do I need to assign to a regular user to modify the share permissions - e.g. to add another user with full control permissions, or to deny someone read access to the folder - on a share level. I know that this is possible through NTFS permissions, but I am wondering whether it is also possible on share level. Any ideas how to do that? Or perhaps only the adminstrator/creator/person who shared the folder has the access to this? I am using win2003 Any ideas? Thanks

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  • Is there a 'global media cache' in Windows 7 that may be used by third party media players?

    - by Pulse
    Here's the background. I don't use Windows Media Player or Media Centre, in fact both components have been 'turned off' via the 'Programs and Features' option. My media player of choice is a nightly build of MPC-HC, which plays virtually everything. I do, however, have VLC portable available for those rare instances when MPC-HC can't or won't play something correctly. This is the situation. I tend to download various media files via torrent, typically, game trailers or freely availably films, such as the recently released, torrent only, Pioneer One. Quite often these files are quite large, being 1GB+ so I quite often like to preview the file after it has downloaded a significant portion of the file. For the most part, this works quite well, and gives me an idea about the worth of continuing the download. Sometimes, however, the file doesn't play as expected and instead plays a completely unrelated file that has been previously played. Here's the strange thing. if I try to preview the file in MPC-HC or VLC both players play the same, previously played file, regardless of whichever player was originally responsible for playback. Most times, it's not even a file that's been played recently. I have searched the registry for some sort of MRU cache, but have found nothing. I have made sure each player has had it's respective history/cache deleted and can fine nothing on disk that seems to be storing this, apparently shared data. So, the question is, where are these unrelated players getting the file information from? Thnaks.

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  • Not getting my normal internet speed but my other computers can?

    - by Dennis
    I have Comcast Xfinity and I cannot reach anywhere near my promised speed. My family desktop which is hardwired into the router reaches to 60Mbps and so do my parents computers and my brothers. I cannot seem to get anywhere close to it, I know with being wireless I won't reach it, but I should at least get somewhere close. I can only pull 6Mbps and thats terrible for what I should be receiving. Any clue what could be wrong here? Edit: I have 100% signal and I'm not behind any walls

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  • mysql disk io keeps increasing ... is that normal?

    - by trustfundbaby
    So I've been trying to figure out this disk IO problem I have been having with my linode VPS. Over the last day or two I've just left watch -n1 pidstat -d running in a console window and the output looks like this: Monitoring it over the last few days, I've noticed that my problem lies with the init, searchd, and mysql processes. Searchd is sphinx and all its indexes are on disk, so disk io there is inevitable (apparently). What I can't understand is why the disk reads (kB_rd/s) for mysql refuse to stabilize and just keep going up. It started out at 154 yesterday and is up to what you see in that screen shot. but disk writes (kB_wr/s) have remained pretty constant the entire time. My VPS only has 768MB RAM, my mysql db has a size of about 220MB and after running mysqltuner.pl and reading a bit about it, I've been advised to set my innodb_buffer_pool_size to 220MB but I simply cannot afford to do that ... I have it up to 150MB. My question is twofold. Why does the init process have that much disk reading to do? Why is mysql doing so much disk reading?

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  • What would Stack Exchange's yearly expenses be if it were to be using a third party host?

    - by abel
    StackExchange manages it's own servers, as it should, but if SE were to be hosted on a 3rd party "cloud" hosting (like Amazon's), what would it's monthly / yearly expenses be(keeping everything else the same)? A detailed answer comparing it to the bills that Stackexchange boots currently (including power/property/staff) would help. (PS: I know that the blog is a good resource. I also understand that managing your own hosting is almost the same as setting up a hosting company and using it for your own needs. Plus is this a question for meta or does it fit within serverfault's purview?)

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  • Is an average RAM usage per Apache process of 43 MB "normal" for a Social Networking site? [closed]

    - by Programmer
    I have a Social Networking site that runs on a single LAMP Server that handles everything. The average RAM usage per Apache process is 43 MB. Is that amount roughly within the expected range for a Social Networking site, or is it too high? If it's too high, where and how can I look to bring that average number down? (If you need more details to determine whether it's within the expected range or not, just let me know and I'll edit my question to provide them as best I can.)

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