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• Software for RAID Failure Alerts?

  - by QF_Developer

  I have two 256 GB Samsung 840 Pro SSD disks in a RAID 1 array. I would like to receive a notification if one of the disks in the array fails. Can anybody recommend an application I can install on the server to fire an email if such an event occurs? Here are some additional specs: Supermicro X9SCM-IIF motherboard utilising the hardware RAID controller. OS = Windows 2012 Standard Also is it possible to simulate a disk failure by pulling it out of the bay? SSDs appear to fail close together when in a mirrored config so I'd like to know ASAP if one goes down so I can swap them out with minimum delay. UPDATE 26th June 2013 ------------------------ None of the software that ships with the Supermicro X9SCM-* motherboards offer support for RAID monitoring. As has been pointed out here, these boards are built on an Intel chipset for RAID and so I installed Intel Rapid Storage Technology that supports automated email notifications on RAID failure http://www.intel.com/support/chipsets/imsm/sb/cs-020784.htm One small issue, the software only allows you to send email notifications without SMTP authentication. There's a bunch of different workarounds here: http://communities.intel.com/thread/30771

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• Why does the wireless network icon have a red X over it when everything seems to work?

  - by Kristo

  I booted my almost brand new laptop running Windows 7 this morning and noticed a red X through the wireless networking icon in the system tray. At first I thought something was wrong, but clicking on it shows a good connection to my wireless network. I had no problem getting here to post this question. I'm very new to Windows 7 so I have no idea how to troubleshoot this myself. Is there an actual problem here? Can I fix the icon so it doesn't falsely display an error (I assume that's what the red X means)? Here's what I know: I can get here to post this question. There's at least one unsecured network available that I'm not connected to. I can see a bunch of wireless networks, presumably from my neighbors' houses. There are no other computers turned on in my house right now. The device manager shows no problems with any devices. I can ping my default gateway, DNS, and yahoo.com with no problem.

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• Could replacing an old hard drive's circuit board make it work again?

  - by oscilatingcretin

  I have a 12-year-old, 10gb Maxtor drive that died on me around 7 years ago, but I have not had the heart to throw it away. When the computer powers on, it whirrs silently as it tries to spin up and then it stops. So, a few years ago, I sent it off for professional data recovery. They were able to retrieve quite a bit from it, but I know there's a bunch more there. It only cost $700, so I just chalked up the lackluster recovery effort to "you get what you pay for" considering that most companies will charge you several thousands of dollars for this kind of data recovery. When they sent the drive back, I couldn't help but plug it back in just to see if maybe they unjammed something in the process of disassembling/reassembling the drive. To my surprise, the drive had a much healthier spin-up sound and actually stayed spinning for several minutes before winding down to a halt. Windows is even able to detect and interact with the drive, but I get I/O errors after so many minutes of waiting for it to mount. Before I start doing stupid stuff with it like dropping it on the ground, freezing it, crapping on it, etc, I decided to buy the exact same model off Ebay so that I could swap the circuit boards as a last-ditch effort. While it's en route, I thought I'd come here to ask if this is even a worthwhile effort and, if even remotely so, what should I know before ripping off the old board and slapping on the new?

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• MySQL Tables Missing/Corrupt After Recreation

  - by Synetech inc.

  Hi, Yesterday I dumped my MySQL databases to an SQL file and renamed the ibdata1 file. I then recreated it and imported the SQL file and moved the new ibdata1 file to my MySQL data directory, deleting the old one. I’ve done it before without issue, however this time something is not right. When I examine the (personal, not MySQL config) databases, they are all there, but they are empty… sort of. The data directory still has the .ibd files with the correct content in them and I can view the table list in the databases, but not the tables themselves. (I have file-per-table enabled, and am using InnoDB as default for everything.) For example with the urls database and its urls table, I can successfully open mysql.exe or phpMyAdmin and use urls;. I can even show tables; to see the expected table, but then when I try to describe urls; or select * from urls;, it complains that the table does not exist (even though it just listed it). (The MySQL Administrator lists the databases, but does not even list the tables, it indicates that the dbs are completely empty.) The problem now is that I have already deleted the SQL file (and cannot recover it even after scouring my hard-drive). So I am trying to figure out a way to repair these databases/tables. I can’t use the table repair function since it complains that the table does not exist, and I can’t dump them because again, it complains that the tables don’t exist. Like I’ve said, the data itself is still present in the .ibd files and the table names are present. I just need a way to get MySQL to recognize that the tables exist in the databases (I can find the column names of the tables in question in the ibdata1 file using a hex-editor). Any idea how I can repair this type of corruption? I don’t mind rolling up my sleeves, digging in, and taking a bunch of steps to fix it. Thanks a lot.

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• After RAID failure SBS 2008 issues logging in and Exchange store does not mount

  - by Josh R

  today has been one of those days. Yesterday a hard drive in our Dell Poweredge 2900 server failed and the RAID array didn't degrade gracefully, so I called Dell (Server still under warranty) and got an engineer to work though the RAID issues with me. He was a nice guy but didn't do too much. We tried to put the RAID in a state where it was bootable and even though we only lost one disk there are still issues with the server. Once we got the server to boot there was an error message saying that the logonui.exe was corrupted and we needed to run chkdsk. I clicked through the error messages and the login screen never came up. So I power cycled the server and it chkdsk automatically but the login screen didn't appear. I tried safe mode, no difference there either. So the issues I am currently having are: 1) The server boots up, the loading windows screen comes up then it dumps me into a black screen where I can only see my mouse cursor. Ctrl+Esc doesn't work Ctrl+Alt+Del doesn't work 2) Some of the services come up: DHCP, DNS, DFS, and Print come up 3) The exchange information store and transport service don't start - I tried using mmc to connect to services.msc on the computer and start them but they throw an error message of "Can't start because group or dependency failed" Has anyone had a problem like this? Can anyone offer some guidance? Thanks a bunch!

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• Read non-blocking from multiple fifos in parallel

  - by Ole Tange

  I sometimes sit with a bunch of output fifos from programs that run in parallel. I would like to merge these fifos. The naïve solution is: cat fifo* > output But this requires the first fifo to complete before reading the first byte from the second fifo, and this will block the parallel running programs. Another way is: (cat fifo1 & cat fifo2 & ... ) > output But this may mix the output thus getting half-lines in output. When reading from multiple fifos, there must be some rules for merging the files. Typically doing it on a line by line basis is enough for me, so I am looking for something that does: parallel_non_blocking_cat fifo* > output which will read from all fifos in parallel and merge the output on with a full line at a time. I can see it is not hard to write that program. All you need to do is: open all fifos do a blocking select on all of them read nonblocking from the fifo which has data into the buffer for that fifo if the buffer contains a full line (or record) then print out the line if all fifos are closed/eof: exit goto 2 So my question is not: can it be done? My question is: Is it done already and can I just install a tool that does this?

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• How much free memory should I have on my webserver?

  - by neanderslob

  I have a webserver that's currently hosting two Wordpress sites and some java-based collaboration software. The server has 2G of memory and is currently using about 1.8G of the available memory. Right now what's on here is pretty much a pilot project that's getting negligible traffic so I think it's pretty clear that I'll be needing more memory. I was wondering, if I was to release it, how I might anticipate my memory needs based on the traffic it gets. I've poked around on Google and what I've found has been a bit tenuous. Is there a good heuristic that one should use when calculating memory demands as a function of the base (no traffic) load on the server? For reference, the output of free -m can be seen below: total used free shared buffers cached Mem: 2048 1832 215 0 0 0 -/+ buffers/cache: 1832 215 Swap: 0 0 0 To me this looks like actual memory used and isn't an illusion due to caching or anything else. I figure the demands of my collaboration software will have to be experimentally tested so here's free -m without that software running: total used free shared buffers cached Mem: 2048 1109 938 0 0 0 -/+ buffers/cache: 1109 938 Swap: 0 0 0 My plan B to figure this out is to add a bunch of swap space to the server, give it some traffic and adjust according the the amount that swap gets used. I was just wondering if anyone had a good rule of thumb to estimate how much memory I should plan on in advance...or if what I'm thinking is nuts. Many thanks in advance (I'm really quite new to this).

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• what are these weird IP address connections in resource monitor?

  - by bill

  I decided to check out Resource Monitor (on the 'Performance' tab in Task Manager, Windows 7) and I noticed in the "Network" section that the 'System' image name kept making a bunch (~5 at a time) of connections to random IP addresses, it would show anywhere from 1-500 bytes/sec 'sent'. They would stay connected for 1-2 minutes. -All web browsers are closed So, first thing I did was run a trace from network-tools.com on some of these IP addresses. 8/10 were outside of US and did not resolve to any host name. Of the 10 IP addresses I traced, 2 were in US, 4 showed origins in China, and one each to Algeria, Russia, Pakistan, Korea. (!) So, the next thing I did was turn off my wireless card, watch the connections disappear, then turn the card back on, and within 30 seconds more random connections were created by System, with different IP addresses from the first time. The next thing I did was go open Task Manager, Show Processes From All Users, then I killed just about everything that wasn't (what appeared to be) a windows process. Turned on wi-fi, and again within 30 seconds, random IP addresses connect for ~ 1 min at a time, new ones coming and going. I occasionally use bit torrent on this machine, but there was definitely no process that seemed related to bt running after I went through task manager, and bt wasn't open to begin with. So, any ideas on what these connections might be for? I have been using Ad-Aware Free and AVG Free on this computer for a while now, always up to date..

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• Why does my ftp(e)s server fails like half of the time

  - by user1092608

  I have this discussion at work regarding our ftp server running via vsftpd. Initially, we have opted to serve ftpes instead of sftp because this seemed the most flexible and straightforward solution for our server to have secure file transmission. Afterwards, our ftp server seems to be a source of issues for our end users. Half of the time, users complain about not working ftp connections. I must say, i tested our FTP trough different infrastructures (=in the field, at random times at random places) and indeed, sometimes behind some configurations (=no idea how they are configured, because the 'field' testing), i recieve errors. Some of the are: Error: Failed to retrieve directory listing (filezilla) Furthermore, behind my basic home configuration, everything seems to be running fine. I (think I) did all the basic configuration checks (passive mode?, firewall for all ports?, ...) and can't seem to find the source. Being a bunch of techies at our small office, yet knowing nothing about infrastructure, some start suggesting that ftps protocol could be the source of issues. ("No, i only knew sftp so far" "Ftps is not widespread"). I, however, strongly doubt this hypothesis, since reading around on the www, asking questions on serverfault, everyone seems to deny this. So, as I would like to avoid reconfiguring, since this involves messing around in our SSH service, our virtual user setup and ftp service, i would need some advice on 1) what could be potentially the general cause? 2) do you have some general tips? 3) would you mind having a look at my configuration file? ----- General Settings ----- write_enable=YES dirmessage_enable=YES nopriv_user=ftpsecure ftpd_banner="Welcome to XXXX FTP!" hide_ids=YES hide_file=.* max_per_ip=10 max_clients=10 local_enable=YES local_umask=022 chroot_local_user=YES secure_chroot_dir=/usr/share/empty userlist_enable=NO userlist_deny=YES userlist_file=/etc/vsftp_deny_users guest_enable=YES guest_username=ftpvirtual virtual_use_local_privs=YES user_sub_token=$USER local_root=/srv/ftp/ftpvirtual/$USER anonymous_enable=NO syslog_enable=NO xferlog_enable=YES xferlog_file=/var/log/vsftpd_xfer.log connect_from_port_20=YES pam_service_name=vsftpd listen=YES listen_port=21 pasv_enable=YES pasv_min_port=30000 pasv_max_port=30030 pasv_address=foo ssl_enable=YES rsa_cert_file=/etc/vsftpd.pem rsa_private_key_file=/etc/vsftpd.pem force_local_data_ssl=YES force_local_logins_ssl=YES ssl_tlsv1=YES ssl_sslv2=YES ssl_sslv3=YES ssl_ciphers=HIGH anon_mkdir_write_enable=NO anon_root=/srv/ftp anon_upload_enable=NO idle_session_timeout=900 log_ftp_protocol=NO dsa_cert_file=/etc/vsftpd.pem Thanks

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• is there a way to run a command before puppet implements a change?

  - by Patrick

  I want to have puppet run a specific command before performing any type of change. I am aware of the prerun_command option in the main puppet.conf, but this is not what I'm looking for. I want the command to only run if something is about to change, not on every puppet run. Here's the scenario. Let's say I have a bunch of web servers behind a load balancer. I then want puppet to update the web site files. But in order to prevent issues where some files have been updated, but other files haven't, and the mixed versions causing problems, I want to take the server out of the load balancer pool. I could write a script which when run will tell the load balancer to remove the box from the pool. Then puppet can do the change, and use postrun_command to put the box back in the pool once complete. But I need a way to run that script to remove the server from the pool. The only solution I can think of is to keep 2 copies of the files on the box. One a staging copy, and when puppet updates that, use a notify action to trigger the removal script, and then copy from staging into the live location. But I was hoping for something a little more generic that would work on any change being performed (upgrading a package, restarting a service, creating a user, anything).

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• Allow members of a group to be unlocked by a specific account on AD

  - by JohnLBevan

  Background I'm creating a service to allow support staff to enable their firecall accounts out of hours (i.e. if there's an issue in the night and we can't get hold of someone with admin rights, another member of the support team can enable their personal firecall account on AD, which has previously been setup with admin rights). This service also logs a reason for the change, alerts key people, and a bunch of other bits to ensure that this change of access is audited / so we can ensure these temporary admin rights are used in the proper way. To do this I need the service account which my service runs under to have permissions to enable users on active directory. Ideally I'd like to lock this down so that the service account can only enable/disable users in a particular AD security group. Question How do you grant access to an account to enable/disable users who are members of a particular security group in AD? Backup Question If it's not possible to do this by security group, is there a suitable alternative? i.e. could it be done by OU, or would it be best to write a script to loop through all members of the security group and update the permissions on the objects (firecall accounts) themselves? Thanks in advance. Additional Tags (I don't yet have access to create new tags here, so listing below to help with keyword searches until it can be tagged & this bit editted/removed) DSACLS, DSACLS.EXE, FIRECALL, ACCOUNT, SECURITY-GROUP

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• Searching for just files

  - by M Schenkel

  I have a couple questions about searching for files on Windows 7. I find the XP method much easier than this new Windows 7 search. Note: I am only concerned about finding files matching a search term, not ALL files containing the search term. Is there a way to search just for files? When I use the search it seems to be searching "within" files and returning instances where the name of the file is used. Example: I have a whole web directory and want to find the javascript files. But if I enter "myjavascript.js" in the search, it also returns all the html files which reference the javascript file. This is both slow and difficult to actually find the reference to the file. Is there a way to search for an exact match? The search seems to implicitly use wildcards. For instance, say I have a bunch of files in a folder: file1.txt,file11.txt, file12.txt, file13.txt. If I enter "file1.txt" in the searcher it returns instances as if I were using a wild card file1*.txt I miss XP!!!!

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• Running Solr on VPS problem

  - by Camran

  I have a VPS with Ubuntu OS. I run solr om my local machine (windows xp laptop) just fine. I have configured Jetty, and Solr just the same way as on my computer, but on the server. I have also downloaded the JRE and installed it on the server. However, whenever I try to run the start.jar file, the PuTTY terminal shows a bunch of text but gets stuck. I could pase the text here but it is very long, so unless somebody wants to see it I wont. Also, I cant view the solr admin page at all. Does anybody have experience in this kind of problem? Maybe java isn't correctly installed? It is a VPS so maybe installation is different. Thanks UPDATE: These are the last lines from the terminal, in other words, this is where it stops every time: INFO: [] webapp=null path=null params={event=firstSearcher&q=static+firstSearcher+warming+query+from+solrconfig.xml} hits=0 status=0 QTime=9 May 28, 2010 8:58:42 PM org.apache.solr.core.QuerySenderListener newSearcher INFO: QuerySenderListener done. May 28, 2010 8:58:42 PM org.apache.solr.handler.component.SpellCheckComponent$SpellCheckerListener newSearcher INFO: Loading spell index for spellchecker: default May 28, 2010 8:58:42 PM org.apache.solr.core.SolrCore registerSearcher INFO: [] Registered new searcher Searcher@63a721 main Also you should know that I installed jetty by just dragging the folders from my HD to the VPS server.

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• Removing all traces of GNU java and openjdk and replacing with Sun JDK

  - by user61766

  I have installed latest Sun JDk. But when I do: java -version I still got OpenJDK version. So I completely removed OpenJDK. But now when I do: java -version I get even older GNU java 1.5 something libgcj. So I completely removed that too but it was asking to remove bunch of dependent apps like OpenOffice.org Writer etc. Even though I need the writer, I let it go because I do not want ever to see the face of any GNU java on my linux. So everything related to GNU java is removed. Luckily I am able to start Eclipse and it works fine and start normally (apparently using the installed Sun JDK which is what I want). But now when I run java -version I get bash: /usr/bin/java: No such file or directory Now what I need to do so that when I open any terminal window and enter java -version I should get Sun JDK version? Sun JDK is installed in /usr/java/jdk1.6.021. I also have symlinks: /usr/java/latest and /usr/java/defaults pointing to sun jdk.

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• Revamping an old and unstable IT-solution for a customer?

  - by cmbrnt

  I've been given the cumbersome task to totally redo the IT-infrastructure for a customer's office. They are currently running Windows XP all over, with one computer acting as a file server with no control over which users have access to which files, and so on. To top it off, this file server also functions as a workstation, which means it gets rebooted every time the user notices some sluggish behavior or experiences problems with flash games. To say the least, this isn't working for them. Now - I've got a very slim budget, but I need to set up a new server, and I wish to run Windows Server 2008 on it. I also need the ability to access the network remotely via VPN. Would it be a good idea to install VMware ESXi 4.1 onto the new server, and then run Windows Server 2008 as well as a separate Debian install for openvpn on it? I don't like the Domain Controller for the future AD to also run a VPN-server, because of stability issues when something goes to hell with either of them. There will be no redundancy though. However, I'm not sure if there is something to gain by installing a VPN solution on the Windows Server itself, when it comes to accessing file shares on the network via VPN. I don't know how to enable users logging in via the VPN to access the remote files, since they will be accessing the network from their own home computers (which is indeed a really bad idea, but this is what I've got to work with). They won't be logged in to the windows Domain, but rather their home workgroups. I need to be able to grant access to files in certain directories based on the logged in AD-user, but every computer won't necessarily be configured to log into the domain. I'm not sure how to explain this in a good way, but I'd be happy to clarify if somethings not clear. Any help would be great, because I've got a feeling that I can't do this without introducing a bunch of costly new rules when it comes to their IT-solution. I'd rather leave that untouched and go on my merry way to the next assignment.

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• Transfer iptables rules to another server (almost) real time

  - by MrShunz

  I'm running 2 cPanel servers with ConfigServer Security & Firewall plugin. One of the functions of the plugin is to block via iptables (temporarily and/or permanently) IPs which fail various authentications (POP3/IMAP, SMTP, FTP, webmail, mod_security and such). Now, i'd like to push those IP blocks to the border router to drop packets as soon as possible (and doing so protecting the other machines on the network). Keep in mind that after N failed logins IP is blocked for 5 minutes, then re-allowed. If multiple bans occours in an hour IP is blocked permanently and should be unlocked "by hand". So I need a near realtime solution. What I'm looking for is a better way than firing some cronjobs both on cPanels and border router to: dump the rules to file transfer the file to border router (via scp/sftp) load the rules from the file in the border router I'm aware that I will need some scripts to parse and modify the rules as cPanels have one ethernet interface and some aliases while border router has two ehternet interfaces and some loopbacks. All machines involved use Linux. EDIT as per @pjmorse comment. The plugin consists of a bunch of perl and config files. The part I'm intrested in is a process which scans logfiles (lfd) and installs iptables rules (and sends an alert email). Fact is, it upgrades quite often (one or two times a week) and itself is 7000 lines of perl so I'm not comfortable on tampering with it.

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• Where does Windows store MSI files for uninstallation?

  - by Nilzor

  I'm trying to figure out how Windows (XP through 7) is handling installation and uninstallation of MSI files. I have come up in situations where Windows Installer is unable to uninstall because it's missing the original MSI file, which leads me to believe that it stores a copy of all installed MSI packages somewhere. Where? I've had a couple of theories. It expectes it to reside in the same folder as it was installed from. The registry keys in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall does point to the original installation folder, and error messages when the MSI file is missing often point to this. Removing the MSI file from this folder does not hinder the uninstallation process though, so I've refused this theory. C:\Windows\Installer. This folder actually contains a bunch of seemingly randomly named MSI files. But this list is incomplete. I do find entries in the registry key mentioned in 1) which does not have an MSI copy in this folder. So how does this work? How is windows installer able to uninstall MSI-installed applications even though the MSI is not in 1) and not in 2)?

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• How to get a list of Dovecot IMAP users

  - by Colt McCormack

  How do you get a list of users for a dovecot email server that connect via IMAP (as opposed to POP)? Our server is setup to authenticate via LDAP/PAM. Is there an easy way to get a list of the users who are accessing their mail via IMAP, rather than POP? I am about to migrate our server to Google Apps and want to migrate all of the mail for my IMAP users only (couple hundred out of several hundred total users). POP mail will be migrated separately from the client end obviously. I would much rather migrate only the IMAP users rather than the whole domain which would include migrating a bunch of POP mail left in the server that has already been read/sorted/deleted in the client's email program. Migrating all of that extra useless leftover POP mail could waste weeks of migration time. I suppose parsing some logs to see who has connected on an IMAP port (995 or 993) would give me a list would work if someone could help me do that. I know I have the raw dovecot logs, but am hoping for a cleaner solution.

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• Windows 7: moved system partition, need to update boot partition

  - by Actorclavilis

  So, I have a decently standard Windows7/Ubuntu dual-boot setup, and (since Ubuntu is my usual operating system) I found I needed to grow my Ubuntu partition and shrink my W7 partition. Originally, my system (500G) looked like this: W7 Boot Partition (1.5G) Ubuntu (around 240G) W7 (same as Ubuntu) (on an extended partition, all by itself) Swap (rest of disk, around 16G) Now I'm no stranger to partitioning and filesystem tools, especially GParted, which I used on a Linux boot disk. After my partition editing, the partitions are laid out the same, except the Ubuntu partition is now 407G and the W7 partition is smaller to compensate. I had supposed, based on http://www.gparted.org/faq.php, that I would be able to run the W7 install disk in recovery mode and have it deal with the rearrangement, then possibly reinstall GRUB or something. Well, now the W7 install disk doesn't even see my W7 installation. All my files are there, the NTFS is perfectly clean, no problems there, but the install disk won't notice it. (Of course, the GRUB entry works fine but the W7 boot partition (which I didn't change) refuses to boot it.) So, basically, any ideas on how to fix this? I don't especially want to rerun the entire install procedure because I'll have a bunch of programs to reinstall (never mind redoing GRUB), but I fear that might be the only option. Thanks.

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• Linux: How do I use Munin in cPanel to monitor MySQL?

  - by Continuation

  I have a cPanel server running CentOS 5.5. I want to use Munin to monitor MySQL. I went to: Main >> cPanel >> Manage Plugins and selected "Install and keep updated" for Munin and clicked "Save". I got the usual bunch of status updates about the install. At the end I got: Going to read '/home/.cpan/sources/modules/02packages.details.txt.gz' Database was generated on Wed, 02 Mar 2011 18:28:33 GMT ..........................................................................DONE Going to read '/home/.cpan/sources/modules/03modlist.data.gz' Out of memory! Callback called exit. Done Done Done Process Complete As you can see I got an "Out of memory!" message. But after that it said "Process Complete". Was Munin installed? When I went back to "Manage Plugins" it Munin has a check that against "Install and keep updated". So is everything alright? And how do I use Munin now? How do i configure it to monitor MySQL? Where can I see the results? Thanks.

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• How does everyone set up AWS for PHP with a git workflow while worrying about distributing EC2?

  - by Parris

  Hello, I have been looking for something like heroku but for php, and after much frustration (and almost finding what I need, but not quite) we decided to just go with AWS without any other abstraction. We are using PHP 5.3 (and CakePHP 1.3), and are currently using git. Ubuntu seems like the easiest way to get both of those on there and we will most likely use that. We aren't really going worry about outgoing email. We are using smtp through gmail, but will most likely switch to some other service eventually. I had 3 questions: 1) I have been looking at Zend Server, and I am not quite sure how that is more beneficial than xampp. Perhaps it is not? 2) I suppose to make the application scale we would need multiple instances of some ec2 ami. Then just duplicate it and such. The question then becomes how do we make sure all EC2 instances are up to date? 3) I understand the concept of load balancing to some degree. I understand that in 1 region you select a bunch of servers and have it load balance across them. The question then becomes well how about world wide? How do I make it so that traffic is directed to the correct ec2 server? I have heard of route 53, and tried signing up for that, but nothing appears in my control panel. Also perhaps it is just a DNS thing with my domain registrar? AHHH... some tutorial would be helpful!

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• Looking for a powershell script that can pull a file from a set of PC's and FTP

  - by DangeRuss

  I'm looking to write a script (preferably powershell) that will essentially copy a file from a bunch of PC's and FTP it to a server. So the structure of the environment is that we have a file on multiple PC's (around 50 or so) that need to placed on a server. Sometimes one of the PC's may be turned off so the script would first need to ensure the PC is up and running (maybe a ping result), then it would need to go into a directory on that PC, pull a file off of it, rename the file, place into a source directory, then remove the file. Naming convention doesn't matter, but date/time stamp would be easiest. Ideally, it would be best to first move all the files to a source directory to save on FTP bandwidth, but since the files will be named the same, the files must be renamed during the move process. Move not copy because the directory needs to be empty so the file can be re-created the next day. So once moved to the source directory, now all the files need to be FTP'd to a server for processing. After all of this, we need to know which PC's on the list did not respond so we can manually retrieve the file so the script should output a file (txt is fine) that will show which PC's were offline. Everything is one domain and script will be run from an server with admin creds. Thank you!

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• Can't get 1440x900 resolution with GRUB2 although vbeinfo says it's available

  - by TomSW

  I'm trying to use GRUB2 in graphical mode with 1440x900 resolution, but the result is always garbled nonsense: the highest resolution I can get is 1280x800. Word is from googling that long as vbeinfo lists a resolution, GRUB2 can use it. This doesn't seem to be true: vbeinfo says that 1440x900 is available but it doesn't work. Testing it from the GRUB2 command line: set gxfmode=1440x900 terminal_output gfxterm # -> garbled nonsense # back to trusty 640x480 terminal_output console The graphics card is an Intel GM965. Once linux boots the framebuffer switches to 1440x900. Added after epheminent's reply and various experiments vbeinfo lists two sets of modes. The first set runs from 0x160 to 0x16b, with resolutions 768x480, 960x600, 1280x800 and 1440x900 Then - after a bunch of text-only modes - the second set, containing resolutions 1024x768, 800x600, and 640x480 The first set of modes aren't altered by 915resolution. They all work except 1440x900. The resolution of modes in the second set can be altered using the 915resolution module / command available in GRUB2 = 1.99. # in /boot/grub/grub.cfg insmod 915resolution # 30, 32, 34 all work for me: all that varies is which modes are altered 915resolution 30 1440 900 # setting an impossible resolution changes the mode to "text-only" # in my case 1280x1024 is not supported 915resolution 30 1280 1024 Clearly, 1440x900 should just work: adding it with 915resolution is just a workaround.

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• Putting and configuring grub on an external drive

  - by HisDudeness

  I want to put a bunch of minor emergency operating systems (such as GParted Live, DSL, Puppy Linux and so on) on a partitioned USB pen drive, with a dedicated grub boot loader on it, which I want to start when I select the drive in the BIOS to boot. The problem is: when writing grub boot options I must tell where kernel and initial ram files are located, but the USB drive can have different letters depending on when I did plug it in, if some others external drive were mounted. So, how can I write appropriate options which automatically refer to the drive grub is installed on without having to specify absolute paths, which might change (I mean, like (hd1,msdos1) ot /dev/sdb1)? And, while we are at it, can I have grub working on a device without an operating system on it to which it can refer? I mean, I want to address the command sudo grub-install /dev/sdb from the LMDE system I'm on right now, but I won't have LMDE on my pen drive. Is that a problem? And installing grub on another device, will I keep the grub I have right now on my HDD?

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• Recovering a broken NTFS filesystem?

  - by OverTheRainbow

  A much-needed Windows Update broke a Vista laptop that was running fine until then: After booting up, Windows displays "Please wait..." but it never goes anywhere. I waited for a couple of hours, there is a bit of disk activity, but it didn't work out in the end. I booted with the Vista DVD, chose "Repair your computer" which said that there was nothing wrong :-/ Next, I booted it up with a Linux USB keydrive, and ran Gparted 0.8.1 (which includes ntfsresize v2011.4.12AR.4 libntfs-3g) which displays a bunch of warnings for the NTFS partition where the Vista system is located such as: ntfs_mst_post_read_fixup: magic: 0x00000000 size: 1024 usa_ofs: 0 usa_count: 65535: Invalid argument Record 16 has no FILE magic (0x0) Next, I ran ntfsfix /dev/sda2, which said: Mounting volume... OK Processing of $MFT and $MFTMirr completed successfully. NTFS volume version is 3.1. NTFS partition /dev/sda2 was processed successfully. Next, I rebooted Vista, which did a CHKDSK, before rebooting. But I'm still getting nowhere with "Please wait..." Before I copy the user's data to another host and reinstall Vista from a DVD, does someone know what I could try? Thank you. Edit: In case someone else has the same issue... After the BIOS, hit F8 and choose "Repair your computer", followed by "Toshiba HDD Recovery". In addition to a 1,5GB partition labelled "WinRE", the hard disk contains a second partition labeled "Data" from which the application will fetch a system image and reinstall it in the "Vista" partition. Make sure you copy your data out of the system partition before doing this.

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