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  • Alternatives to auditd and inotify for monitoring file deletion

    - by Tola Odejayi
    I'm trying to figure out which processes are deleting files from a specific directory on my CentOS server. I looked at inotify, but all this does is to tell me how many file deletions are occurring; it does not tell me what process run by which user did the deletions, nor does it tell me when they happened. I also tried auditd, but I have had no luck in getting it set up on my server. Does anyone have any other tool they can suggest that will do this?

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  • How do I run AWS code on an EC2 instance?

    - by Marianna
    I just started with Amazon web services, and I have an EC2 instance. I downloaded the JAVA SDK and the Eclipse toolbox. I am able to run a sample program locally on my PC and connect to the Amazon databases, etc. My question is, what do I need to do to get this working on my EC2 instance? This may not even be specific to AWS. On Eclipse, I can just "Run as Application" and run any code. On the server side, what do I need to do? Should I ftp over my .java files? Should I export it to a jar and upload that? Do I need to install anything special to actually run it?

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  • Formatted mac external hard drive loaded on pc

    - by kjokay
    I have an issue where it appears that an external hard drive which had been formatted on a mac system was loaded as a drive in Windows. Windows is obviously unable to read the data and now the drive won't mount in the mac. It appears that Windows overwrote something concerning the drive's information on what filesystems and types it has on it. Mac diskutility is unable to repair the drive and the partition is showing up in the utility as a FAT32. Using an applexsoft utility, I am able to verify the data is still on this drive, but I'd rather not spend $100 to save these files (its not my hard drive anyways). Is there a way I can use some UNIX commands to find out the partition information on the drive, back the raw data up on it, then restore the data back onto the drive after re-formatting it again?

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  • I want to change hard drive. How to move system partition with Windows 7?

    - by Semyon Perepelitsa
    I've bought a new hard drive and want to move all my data to it. I had no problem with moving all files on non-system partition. But I don't know how to move system partiton. Now I have 3 partitions on the new disk, fist two was created by Windows installation CD (I tried to move system using internal tools, but it didn't work for me), third is filled with my successfully transferred data from old disk. And there are two partitions on the old disk: the first one is system (Windows 7) and the second one is my old main storage, that I already moved to the new hard drive and now it is empty. How can I change the placement of Windows 7 with minimal difficulties and losses, so I could work on the new hard drive just as I did it on the old one?

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  • Best way to restore individual folders via Time Machine after clean Lion install?

    - by A4J
    I'm doing a clean erase and install of Lion, and am looking for the best way to restore individual folders into my home directory via Time Machine. I've done a dummy run, clean Lion install, then 'browse other disks' in Time Machine, navigate to my home folder and 'restore' what I need, such as pictures/music and folders inside the .library folder (such as Mail and Keychains). However this method seems to give you odd permissions, like this: http://i43.tinypic.com/15y82v4.png Hence I wondered if anyone knows what the best method is to restore files and folders after a clean install. N.b I do not want to use the migration assistant, or 'restore OS from Time Machine' - as I specifically want to do a clean install, and just copy over what I need (some folders will be moved onto a separate disk to the OS, and some will remain on the same disk). Thanks in advance.

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  • My website is infected with JS:ScriptIP-inf [Trj]

    - by Rizwan Aaqil
    I am using Network Solutions hosting. I was recently attacked with JS:Illredir-S [Trj], I asked my hosting providers to clean it and they cleaned it and updated all passwords, but now after a week my site got infected again with JS:ScriptIP-inf [Trj]. Can anyone please suggest me how to secure my website properly ? Should I change my hosting provider ? I am fed up of these viruses again and again on my websites. I can't even find this virus in my files. Please post informative answers. Thanks

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  • How to use psexec to start installation or other task that requires UAC interaction?

    - by Miguel Ventura
    I'm trying to remotely start installations and I'd like not to disable UAC. If I start the processes remotely using psexec, the installer will just get stalled waiting for the UAC prompt. Other tasks such as temporary files cleaning, services restarting, etc, will get me Access Denied errors. Is there anyway psexec can walk around UAC such as logging in with Administrator but with the TrustedInstaller privileges or something like that? By the way, I'm targeting Windows 2008 R2, but I think this question applies to Vista, 2008 and Windows 7 as well.

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  • Out of disk space on 4GB partiton yet it's only using 2GB

    - by Camsoft
    I'm running Ubuntu and have had a problem where the root partition has run out of disk space. When I perform df -h I get the following: Filesystem Size Used Avail Use% Mounted on /dev/sda6 4.6G 4.5G 0 100% / Yet there are only 2GB of files actually using up this partition. I then ran the following df -i and I get the following: Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sda6 305824 118885 186939 39% / I have no idea what the -i flag does but it clearly shows that only 39% is used. Can anyone explain where my disk space has gone?

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  • Good Linux Distro for Disconnected Netbook

    - by MrWizard54
    I'm deployed to Afghanistan with the Army and I have a friend who's netbook had his hard drive take a dump on him. He ordered a new hard drive and I was able to download and burn a copy of Ubuntu to disk from work. However the default install doesn't support most of the media that he wants to watch (AVI files, probably some DIVX video) without installing extra packages. We don't have internet in the tent and really don't have a vaiable option for downloading additional packages through the package manager anywhere here. The computer is a small HP netbook. All my friend wants is to watch ripped movies. Does anyone know of a good way to do either of the following: Download packages seperately and install them via CD A distro that is going to come preloaded with all of the packages and needed to watch just about any type of video file you can think of? Thanks in advance, Andy

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  • ubuntu 12.04 server and tftp access violation issue on put command

    - by SMYERS
    I installed tftp as per this document: http://icesquare.com/wordpress/solvedtftp-error-code-2-access-violation/ I followed this to the letter 3 times and every time I put a file I get: root@CiscoCFG:~# tftp localhost tftp put test Error code 2: Access violation tftp root@CiscoCFG:~# tftp localhost tftp put test Error code 2: Access violation If I touch the file name chmod 777 the file then do a put it works perfectly fine. My config is as follows: service tftp { protocol = udp port = 69 socket_type = dgram wait = yes user = nobody server = /usr/sbin/in.tftpd server_args = -s /svr/tftp disable = no } the directory /svr/tftp permissions are 777: drwxrwxrwx 3 nobody nobody 4096 Nov 14 10:32 svr This thing should have full permissions as would anyone who wanted to write or read from that directory. I see nothing in the logs im really stumped on this. If the file is already in the directory I can read it all day long, I just cant make NEW files, can not put them, but I can do get's, I can only put to an existing file with permissions @777. Thanks

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  • chown: changing ownership of `.': Invalid argument

    - by Pierre
    I'm trying to install some new files on our new server while our sysadmin is in holidays: Here is my df # df -h Filesystem Size Used Avail Use% Mounted on /dev/sdb3 273G 11G 248G 5% / tmpfs 48G 260K 48G 1% /dev/shm /dev/sdb1 485M 187M 273M 41% /boot xxx.xx.xxx.xxx:/commun 63T 2.2T 61T 4% /commun as root , I can create a new directory and run chown under /home/lindenb # cd /home/lindenb/ # mkdir X # chown lindenb X but I cannot run the same command under /commun # cd /commun/data/users/lindenb/ # mkdir X # chown lindenb X chown: changing ownership of `X': Invalid argument why ? how can I fix this ? updated: mount: /dev/sdb3 on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) /dev/sdb1 on /boot type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) xxx.xx.xxx.xxx:/commun on /commun type nfs (rw,noatime,noac,hard,intr,vers=4,addr=xxx.xx.xxx.xxx,clientaddr=xxx.xx.xxx.xxx) version: $ cat /etc/redhat-release CentOS release 6.3 (Final)

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  • Securely wiping a file on a tmpfs

    - by Nanzikambe
    I have a script that decrypts some data to a tmpfs, the directory is secure (permissions), the machine's swap is encrypted (random key on boot) and when the script is done it does a 35 pass wipe (Peter Gutmann) of the cleartext on the tmpfs . I do this because I'm aware wiping files on a journaling file system is insecure, data may be recovered. For discussion, here're the relevant bits extracted: # make the tmpfs mkdir /mnt/tmpfs chmod 0700 /mnt/tmpfs mount -t tmpfs -o size=1M tmpfs /mnt/tmpfs cd /mnt/tmpfs # decrypt the data gpg -o - <crypted_input_file> | \ tar -xjpf - # do processing stuff # wipe contents find . -type f -exec bcwipe -I {} ';' # nuke the tmpfs cd .. umount -f /mnt/tmpfs rm -fR /mnt/tmpfs So, my question, assuming for the moment that nobody is able to read the cleartext in the tmpfs while it exists (I use umask to set cleartext to 0600), is there any way any trace of the cleartext could remain either in memory or on disk after the snippet above completes?

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  • Permission settings for apache2 web content directories with several users?

    - by John
    Hi there. I've got a Debian VPS set up with a LAMP-stack. My apache2 instance runs on the user account 'www-data'. In addition to the root account and the service accounts I have several user accounts belonging to friends, family and myself that includes FTP-access. This is to allow the users to drop files to the root of their domain which is located in their home folder. I am having issues with setting the correct permissions so that Apache is able to serve the content ("403 Forbidden"). I could just do a 'chmod -R 755 *' on the entire www-directory for each domain, but from what I gather that's not a good idea. Here's an example of the structure: apache2 is run by 'www-data' User 'john' has this home folder structure /home/john/domains/somedomain.com/www /home/john/domains/sub.somedomain.com/www How can I keep things safe while still allowing users to upload content via FTP, and allow for file-uploads in lets say Wordpress?

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  • pxelinux hanging when booting client machine

    - by Blasphemophagher
    I'm kind of new to all of this, so please forgive any vagueness/misunderstandings on my part. I'm using pxelinux and VMs to create CentOS 6.0 machines that have the same install every time. I have a new VM set to boot from network, but in the process of booting up it gets stuck at "Loading 10.1.1.20:/pxelinux.0" (10.1.1.20 is the address of the server it's getting info from). pxelinux conf: http://pastebin.com/4XfZZPY1 I'm pretty sure all my config files are correct, could it be VirtualBox related? I have both the building server and the new client set to Host-only adapter and PCNET-FAST.

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  • How do I enable SELinux when booting a ramdisk from a CD/DVD?

    - by JeffG
    I have a bootable DVD which boots the same Kernel as the Hard Drive (which uses SELinux). I have copied /etc/selinux and all kernel modules to my ramdisk, and have tried various combinations of selinux=1 and selinux 1 with enforcing 1 and enforcing 0. as Kernel boot parameters. All files contained in the checkpolicy, libselinux, policycoreutils, selinux-policy and selinux-policy-targeted rpms have also been copied into the ramdisk tree. After the system boots from the ramdisk, I check dmesg: % dmesg | grep -i selinux Kernel command line: initrd=idrd.img ramdisk_size=110476 selinux=1 SELinux: Initializing. SELinux: Starting in permissive mode selinux_register_security: Registering secondary module capability SElinux: Registering netfilter hooks But SELinux isn't running: % /usr/sbin/getenforce Disabled % /usr/sbin/setenforce 1 /usr/sbin/setenforce: SELinux is disabled Neither /var/log/messages nor /proc/kmsg hold clues.

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  • HDD is not recognized/initialized via USB, only via SATA - is a reformat through USB a bad idea?

    - by Wuschelbeutel Kartoffelhuhn
    I have a 4TB Hitachi HDD that I purchased in Europe (I use it as a backup disk); I use Windows 7. When I connect it to a SATA port, it is recognized in Windows Explorer and gives no problems, even after transferring 3TB at a time or after being on for days. When I connect it via a SATA-to-USB2.0 adapter, it is also recognized, but when I transfer a large amount of data, it will intermittently stop being recognized by Windows Explorer and cancel the transfer. When I connect it via an external enclosure (which is technically a SATA-to-USB3.0 adapter), it does not display at all in Windows Explorer, but Disk Management will show the drive, albeit uninitialized (prompts for format). I only got the external enclosure because I want to backup my files more conveniently (instead of having to open the computer case each time). Do you advise against reformat/initialization via the external enclosure? Can it screw up things in an irrevocable way (Master Boot Record etc.)?

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  • Missing autochk program during boot

    - by a sandwhich
    I just resized a windows partition which involved shifting about 160GB to the left. After that it couldn't find the boot like normal so I ran the system repair tool like normal(I resize this partition a lot and each time I have to use the repair disk). But, this time, when I rebooted into the recovered 7 partition, it displayed the windows logo like normal but then flashed up autochk program not found -- skipping autocheck After that being on the screen for about 8 seconds, there was a flash of a bluescreen with white text and it rebooted. I have tried running the repair disk multiple times, but it returns and fixes the same problem each time, and the same thing happens on boot each time. Is there anything I can do to fix this short of reinstalling Windows? I have also ran two chkdsks from my vista partition with no errors reported and when viewing all the files on the drive everything seems to be in place.

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  • Debian server doesn't free memory after backup

    - by stan31337
    I have production server that is running Debian 6.0.6 Squeeze #uname -a Linux debsrv 2.6.32-5-xen-amd64 #1 SMP Sun Sep 23 13:49:30 UTC 2012 x86_64 GNU/Linux Every day cron executes backup script as root: #crontab -e 0 5 * * * /root/sites_backup.sh > /dev/null 2>&1 #nano /root/sites_backup.sh #!/bin/bash str=`date +%Y-%m-%d-%H-%M-%S` tar pzcf /home/backups/sites/mysite-$str.tar.gz /var/sites/mysite/public_html/www mysqldump -u mysite -pmypass mysite | gzip -9 > /home/backups/sites/mysite-$str.sql.gz cd /home/backups/sites/ sha512sum mysite-$str* > /home/backups/sites/mysite-$str.tar.gz.DIGESTS cd ~ Everything works perfectly, but I notice that Munin's memory graph shows increase of cache and buffers after backup. Then I just download backup files and delete them. After deletion Munin's memory graph returns cache and buffers to the state that was before backup. Here's Munin graph: Unfortunately I don't have enough rep to add image here. So here's a link:

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  • Where can you see the data that's been recorded by a tracking cookie?

    - by frenchglen
    I've always read that cookies can, and do, store sensitive information such as OTHER websites that you've visited outside the one to which the cookie belongs. I've started to read up about it and can see that it's persistent cookies which typically do this - and well I've started to look through cookie files on my computer - but I can't see any telling info in them! Just a few jumbled lines and not the scary urls of other sites that I'm looking for. How do I view them? Or is the raw data of visited urls only ever stored on the server end of the site that's tracking me? I'm on Win7 and can look at cookies from FF 12, Chrome 18, IE9 and Safari 5.1. Thanks for illuminating this once and for all.

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  • How does NTFS compression affect performance?

    - by DragonLord
    I've heard that NTFS compression can reduce performance due to extra CPU usage, but I've read reports that it may actually increase performance because of reduced disk reads. How exactly does NTFS compression affect system performance? Notes: I'm running a laptop with a 5400 RPM hard drive, and many of the things I do on it are I/O bound. The processor is a AMD Phenom II with four cores running at 2.0 GHz. The system is defragmented regularly using UltraDefrag. The workload is mixed read-write, with reads occurring somewhat more often than writes. The files to be compressed include personal documents and selected programs, including several (less demanding) games and Visual Studio (which tends to be I/O bound more often than not).

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  • Import GraphViz graph to Microsoft Word 14

    - by rmetzger
    I have created a GraphViz dot-file to visualize a data flow. I have to write a documentation using Microsoft Word and I'd like to include the graph in the document. For some wired reason, MS Word is not able to import SVG files. Then, I generated a .eps file using dot -Teps plan.dot -o plan.eps But once imported into Word, the picture looks horrible. I also tried to convert the svg to wmf using Inkscape. It also looked horrible. Is there a clean way to generate a file using GraphViz that Word can read?

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  • Multiple ServerRoot directives in single apache

    - by fip
    i came across a apache httpd 2.2 configuration recently in which multiple ServerRoot-directives were defined, each followed by individual prefork Settings. Sort of like this: ServerRoot root1 <IfModule prefork.c> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 150 MaxRequestsPerChild 0 </IfModule> [vhost-configs] ServerRoot root2 <IfModule prefork.c> StartServers 10 MinSpareServers 10 MaxSpareServers 20 MaxClients 250 MaxRequestsPerChild 0 </IfModule> [vhost-configs] In my understanding these are global settings one overriding the other. But is that true and is it still true with the second ServerRoot directive between the prefork blocks? Thank you in advance EDIT They are not in different conditional blocks and both server roots are used in that way that files with relative paths to both are correctly included. I just wondered if a <ServerRoot> would initiate a new scope in which all global statements would not override the configuration of previous ones.

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  • Windows pysical server provisioning question with HPSA 7.8

    - by warren
    I have a physical server that I am trying to provision Windows to. At 58% of the way through copying files form the Core to the target server, the process hangs with either a samba time-out or an error indicating that %path%\system32\ntoskrnl.exe is missing or corrupt. I can build a VM on the same subnet with the same media (merely a different profile to catch the different unattend.txt file) with no issues. I can also provision RHEL5 to this server with no issues. The buildmgr logs indicate that eventually the job is timing-out. Samba logs show that connections are made, and then eventually closed - about the time that the build process times-out. Any ideas on where to look next?

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  • Can I configure a DNS cache not to forward AAAA queries?

    - by itsadok
    I'm setting up an internal DNS cache because my firewall is having trouble handling all the sessions created by DNS requests. I tried using bind9, dnsmasq and DJB dnscache, they all help reduce the number of requests leaving my network, but there are still a lot of request being made. Looking at the log files, and tcpdump and dnstop outputs, it seems that requests that return SERVFAIL do not get cached at all. And a lot of those failed requests are AAAA requests, which is a shame, because I do not have ipv6 enabled on any server. I've looked at several ways to help the situation, and I think if I could somehow prevent AAAA record requests from being forwarded by the DNS cache, it would reduce the number of requests significantly. The closest thing I found was the filter-aaaa-on-v4 option in BIND9. However, this only removes the record from the server response, and does not prevent it from forwarding it. Any help would be appreciated.

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  • Trouble installing php memcache extension

    - by user35346
    I'm trying to install memcache on MAMP but I get the warning below, and when I continue it seems to complete properly. I add the line extension=memcache.so to the php.ini and restart MAMP but phpinfo() doesn't list the memcache extension. $ ./pecl install memcache downloading memcache-2.2.5.tgz ... Starting to download memcache-2.2.5.tgz (35,981 bytes) ..........done: 35,981 bytes 11 source files, building WARNING: php_bin /Applications/MAMP/bin/php5/bin/php appears to have a suffix 5/bin/php, but config variable php_suffix does not match running: phpize Configuring for: PHP Api Version: 20041225 Zend Module Api No: 20060613 Zend Extension Api No: 220060519 Enable memcache session handler support? [yes] : yes ... Build process completed successfully Installing '/Applications/MAMP/bin/php5/lib/php/extensions/no-debug-non-zts-20060613/memcache.so' install ok: channel://pecl.php.net/memcache-2.2.5 configuration option "php_ini" is not set to php.ini location You should add "extension=memcache.so" to php.ini

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