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  • Advice: USB Monitoring Programming

    - by Kashif
    I need an advice about USB programming in linux. i have to design a USB monitoring program that 'll keep checking usb ports of a linux cent os. as soon as a usb or external hard disk is connected, this program will shoot an email to some specific person about detail of usb (as size, mount on, time). when usb is disconnected, it will again shoot an email to some person with same kind of information. mean while this program will also write logs in syslog/messages with name of programing for easy tracking. Now I want ask that what is best way to develop this program. as I'm new to this field so i know nothing about it? either i should use perl, bash scripting or some other language? I have no idea what is right way to adopt coz this program will keep running all the time to keep a check on usb ports. I know few commands in like lsusb, fdisk (to check attached usb) and df -h (to get detail of usb) but dont know how i can achieve using these commands that i am thinking. also one more thing that in future i also need to modify this program for ubuntu and Citrix XenServer and it should be same everywhere.

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  • Remote execution in a domain environment

    - by T. Crancker
    I have a windows domain environment and it contains only Server 2008 Os's. I'm trying to execute a script or a program from 1 server on multiple servers, but I can't configure or install any applications. I was trying to user powershell v2.0 (invoke-command) but its not configured and I cant configure it. I'm looking for an alternative maybe WMI. Psexec and rcmd are not installed on any servers. Any advise could help a lot.

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  • When Intel/AMD plan to use new CPU sockets? [closed]

    - by psihodelia
    It is very expensive always to use most modern hardware especially buying new mainboard if only a new CPU is desired. It would be much better if one knows whether and when major CPU producers plan to change CPU sockets. Do you know when it is planed to change sockets the next time? I am particularly interested in not buying Intel i7 CPU if a new CPU will be released soon with not compatible pins.

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  • sendmail - DSN: Name Server host not found

    - by Daniel Mitchell
    I've recently setup a new backup server and have configured sendmail with a smart_relay_host Except every email from the command line doesn't go anywhere. From mail.log: Oct 3 14:32:52 **back01 sm-mta[16570]: p93DWqtC016568: to=<[email protected], ctladdr= (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=120762, relay=10.2.30.60, dsn=5.1.2, stat=Host unknown (Name server: 10.2.30.60: host not found) Oct 3 14:32:52 ***back01 sm-mta[16570]: p93DWqtC016568: p93DWqtC016570: DSN: Host unknown (Name server: 10.2.30.60: host not found) DNS is working correctly on this box. I can do forward and reverse lookups. I can also telnet to the mail relay and send a message that way. I'm stumped, any suggestions?

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  • What's the meaning of logging in as "[email protected]:something"

    - by Harvey Kwok
    My Windows 2008 R2 machine is joined to a domain. In the logon screen, if I type in "[email protected]:something" as the username, I can still logon properly, what's the meaning of ":something" appended at the end? I can even see the current user is displayed as "[email protected]:something" in the switch user screen. Is it a feature in Windows? Or is it just a bug? If it is a feature, what's the difference between logging in as "[email protected]" and logging in as "[email protected]:something"? Note that I tried different combinations like "mydomain\username:something" and "mydomain.com:something\username". None of them work except "[email protected]:something".

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  • Subdomain only accessible from one computer

    - by Edan Maor
    I recently added a wildcard A record to my domain (*.root.com), mapping it to a certain elastic ip on AWS. I've configured apache to redirect all references to something.root.com to root.com, except for one specific "dev" subdomain, which is hosting its own site (a Django app, specifically). The Problem: This setup works perfectly for me on my computer. But on other computers around the office, it doesn't seem to work. Specifically, trying to visit dev.root.com gives an "unable to find server" error. Pinging dev.root.com gives a "cannot resolve hostname" error. The weird thing: pinging any other subdomain of root.com does work, from all machines. I would think this was all due to DNS propagation, except all the computers are behind the same office router, so how could that be the case? Any ideas?

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  • Input field separator in awk

    - by Matthijs
    I have many large data files. The delimiter between the fields is a semicolon. However, I have found that there are semicolons in some of the fields, so I cannot simply use the semicolon as a field separator. The following example has 4 fields, but awk sees only 3, because the '1' in field 3 is stripped by the regex (which includes a '-' because some of the numerical data are negative): echo '"This";"is";1;"line of; data"' | awk -F'[0-9"-];[0-9"-]' '{print "No. of fields:\t"NF; print "Field 3:\t" $3}' No. of fields: 3 Field 3: ;"line of; data" Of course, echo '"This";"is";1;"line of; data"' | awk -F';' '{print "No. of fields:\t"NF}' No. of fields: 5 solves that problem, but counts the last field as two separate fields. Does anyone know a solution to this? Thanks! Matthijs

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  • Terminal emulation has stopped working. Garbage escape chars

    - by oligofren
    To enable me to do some remote administration of our servers I started using a terminal emulation program called TouchTerm Pro on my iPhone. While not the smoothest experience, it has allowed me to leave my computer behind when going out of town, which makes the slightly painful experience worthwhile. As of late, the app unfortunately no longer works. Pressing up and down keys after logging on via ssh gives me garbage like ^[[A and ^[[B. Combinations with Ctrl - like you can see in the video - no longer works either. Writing full command lines and executing by the enter key works though. Being able to search my bash history was the difference between a usable app and endless frustration, so getting it to work is essential. The app has (of course) met its end of life, not getting updated anymore. I am not quite sure, which side (client or server) that has to be "fixed"/hacked to make the control sequences work again. But is there something I can do to make it work as intended? You can see a video of TouchTerm in operation here.

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  • terminal-window viewer for tab-delimited files in *nix?

    - by khedron
    I work with a lot of tab-delimited data files, with varying columns of uncertain length. Typically, the way people view these files is to bring them down from the server to their Windows or Mac machine, and then open them up in Excel. This is certainly fully-featured, allowing filtering and other nice options. But sometimes, you just want to look at something quickly on the command line. I wrote a bare-bones utility to display the first<n>lines of a file like so: --- line 1 --- 1:{header-1} 2:{header-2} 3:... --- line 2 --- 1:{data-1} 2:{data-2} 3:... This is, obviously, very lame, but it's enough to pipe through grep, or figure out which header columns to use "cut -f" on. Is there a *nix-based viewer for a terminal session which will display rows and columns of a tab-delimited file and let you move the viewing window over the file, or otherwise look at data? I don't want to write this myself; instead, I'd just make a reformatter which would replace tabs with spaces for padding so I could open the file up in emacs and see aligned columns. But if there's already a tool out there to do something like this, that'd be great! (Or, I could just live with Excel.)

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  • Is it possible to prevent SCP while still allowing SSH access?

    - by Jason
    Using Solaris and Linux servers and OpenSSH, is it possible to prevent users from copying files using "scp" while still allowing shell access with "ssh"? I realize that 'ssh $server "cat file" ' type file accesses are much harder to prevent, but I need to see about stopping "scp" for starters. Failing that, is there a way to reliably log all SCP access on the server side through syslog?

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  • Multiple logins with pam_mount means multiple (redundant) mounts ...

    - by Jamie
    I've configured pam_mount.so to automagically mount a cifs share when users login; the problem is if a user logs into multiple times simultaneously, the mount command is repeated multiple times. This so far isn't a problem but it's messy when you look at the output of a mount command. # mount /dev/sda1 on / type ext4 (rw,errors=remount-ro) proc on /proc type proc (rw,noexec,nosuid,nodev) none on /sys type sysfs (rw,noexec,nosuid,nodev) none on /sys/fs/fuse/connections type fusectl (rw) none on /sys/kernel/debug type debugfs (rw) none on /sys/kernel/security type securityfs (rw) none on /dev type devtmpfs (rw,mode=0755) none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) none on /dev/shm type tmpfs (rw,nosuid,nodev) none on /var/run type tmpfs (rw,nosuid,mode=0755) none on /var/lock type tmpfs (rw,noexec,nosuid,nodev) none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) //srv1/UserShares/jrisk on /home/jrisk type cifs (rw,mand) //srv1/UserShares/jrisk on /home/jrisk type cifs (rw,mand) //srv1/UserShares/jrisk on /home/jrisk type cifs (rw,mand) I'm assuming I need to fiddle with either the pam.d/common-auth file or pam_mount.conf.xml to accomplish this. How can I instruct pam_mount.so to avoid duplicate mountings?

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  • How to rename a file inside a folder using a shell command?

    - by Leonid Shevtsov
    I have a file at some/long/path/to/file/myfiel.txt. I want to rename it to some/long/path/to/file/myfile.txt. Currently I do it by mv some/long/path/to/file/myfiel.txt some/long/path/to/file/myfile.txt , but typing the path twice isn't terribly effective (even with tab completion). How can I do this faster? (I think I can write a function to change the filename segment only, but that's plan B).

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  • How can I prevent users from installing software?

    - by Cypher
    Our organization is a bit different than most. During certain times of the year, we grow to thousands of employees, and during off-times, less than a hundred. Over the course of a few years, many thousands of people have come and gone in our offices, and left their legacy behind in the form of all sorts of unwanted, unapproved, (and sometimes unlicensed) software installs on our desktops. We are currently installing redundant domain controllers and upgrading current servers, all running Windows Server 2008 Enterprise, and will eventually be able to run a pure 2008 DC network. With that in mind, what are our options in being able to lock down users, such that they cannot install unauthorized software on systems without the assistance (or authorization) of the IT group? We need to support approximately 400 desktops, so automation is key. I've taken note of the Software Restrictions we can implement via Group Policy, but that implies that we already know what users will be installing and attempting to run... not quite so elegant. Any ideas?

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  • Redirect domains with lighttpd?

    - by matt
    I'm working on getting a Wordpress MU install running on my VPS. I enabled the 'simple-vhost' mod and can access the site fine. The problem is I can only get to it from domain.com. If I try www.domain.com I get shown the lighthttpd page? I'd like to get everything pointing to one place. My DNS records look like this: *.domain.ORG xx.xx.xx domain.ORG 300 A domain.ORG xx.xx.xx domain.ORG 300 A WWW.domain.ORG domain.ORG domain.ORG 300 CNAME domain.ORG domain.ORG domain.ORG 300 MX What is happening? Thanks

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  • Linux on Windows AD Domain

    - by QXT
    Successfully joined my Linux Box to a Windows AD Domain. Wanted to know from other admins if it us possible to specify what groups from windows ad is allowed to login? Otherwise anyone with a AD account can login. Suggestions?

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  • Mac dev folder missing, SSH not working

    - by SamGoody
    A few days ago, SSH stopped working. When I try logging in a get the following message: PTY allocation request failed on channel 0 stdin: is not a tty fatal: unrecognized command '' Connection to 74.52.61.194 closed. Web searches have shown me that there might be something wrong with /dev/std. But my computer lacks a /dev/ drive. There is an Alias to /dev/ [hidden, but I've revealed hidden files to do this search], but when I try to open it I am told that it cannot find the folder it is aliasing. Now, many a web search tells me that without a dev folder, the computer doesn't work, but it does seem to work, except the SSH. Also, are there any tools that can save my SSH preferences so that I don't have to, each time, type out the username@adrees, password, path all of which are long and complex? Not looking for a Filezilla type client, there are many of those. Looking for a command line like putty, that lets me use bash on the remote client. Am on Macbook Pro, latest version of Tiger.

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  • compressing dd backup on the fly

    - by Phil
    Maybe this will sound like dumb question but the way i'm trying to do it doesn't work. I'm on livecd, drive is unmounted, etc. When i do backup this way sudo dd if=/dev/sda2 of=/media/disk/sda2-backup-10august09.ext3 bs=64k ...normally it would work but i don't have enough space on external hd i'm copying to (it ALMOST fits into it). So I wanted to compress this way sudo dd if=/dev/sda2 | gzip > /media/disk/sda2-backup-10august09.gz ...but i got permissions denied. I don't understand.

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  • Is it possible to open server ports on TUN devices?

    - by JosephH
    If I make a VPN connection to a server (say myvpn.com; assume this server is not behind any router/firewall) via a TUN device and open a port (say 5555), will someone else be able to connect to me via myvpn.com:5555? If not, is there a tunneling software that does exactly this in a transparent manner? i.e. run any TCP/UDP-based server instance behind a router without NAT using another remote server.

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  • How to get filename of job in cups?

    - by Grook
    I have printed a couple of files and lpstat shows that they are completed. But the output is something like this: # lpstat -W completed -l Canon-1 root 1086464 Sat May 21 22:47:03 2011 Alerts: job-canceled-by-user queued for Canon Canon-2 root 337920 Mon May 23 20:18:02 2011 Alerts: job-canceled-by-user queued for Canon CanonWin-3 root 17408 Mon May 23 20:29:40 2011 Alerts: job-completed-successfully queued for CanonWin` How can i get names of files which has been printed? P.S. Is there is any bash-script which allows me to get names of all files which has been printed?

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