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• Aircrack-ng Usage on Windows (XP) -- Needs clear steps

  - by Alvin

  I've found that Aircrack-ng is very powerful tool for wireless hacking. But it is a bit complicated to use (even with its documentation). Also, when I run the GUI, it needs to add a "capture file". What is that? Additionally, it says Windows version is weaker than the Linux version. So how can I get it to run like a Linux version? What are some step-by-step instructions (to use on Windows XP)?

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• Finding default gateway in an openvpn environment in windows

  - by Alexander Trümper

  I need to find the default gateway in a openvpn scenario where the route output looks like that: IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 10.49.73.1 10.49.73.24 10 0.0.0.0 128.0.0.0 10.8.0.1 10.8.0.2 30 So I googled around a bit and a found this script here: @For /f "tokens=3" %%* in ( 'route.exe print ^|findstr "\<0.0.0.0\>"' ) Do @Set "DefaultGateway=%%*" echo %DefaultGateway% This works, but matches both lines in the route output. But I need to find this line: 0.0.0.0 0.0.0.0 10.49.73.1 10.49.73.24 10 So I tried to modify the findstr parameter like this: findstr "\<0.0.0.0\>.\<0.0.0.0\>" in the expectation that '.' will match for the tab between the columns. But it doesn't. It will still set DefaultGateway to 10.8.0.1 I couldn't find a clue in MS documentation either. Maybe someone knows the right expression? Thanks a lot.

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• Slow tracepath on local LAN

  - by Simone Falcini

  I am on EXSi and I have 2 instances: Ubuntu and CentOS. These are the network configurations Ubuntu eth0 Link encap:Ethernet HWaddr 00:50:56:00:1f:68 inet addr:212.83.153.71 Bcast:212.83.153.71 Mask:255.255.255.255 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:76059 errors:0 dropped:26 overruns:0 frame:0 TX packets:7224 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:6482760 (6.4 MB) TX bytes:2080684 (2.0 MB) eth1 Link encap:Ethernet HWaddr 00:0c:29:46:5a:f2 inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:252 errors:0 dropped:0 overruns:0 frame:0 TX packets:608 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:42460 (42.4 KB) TX bytes:82474 (82.4 KB) /etc/iptables.conf *nat :PREROUTING ACCEPT [142:12571] :INPUT ACCEPT [5:1076] :OUTPUT ACCEPT [8:496] :POSTROUTING ACCEPT [8:496] -A POSTROUTING -s 192.168.1.0/24 -o eth0 -j MASQUERADE COMMIT *filter :INPUT ACCEPT [2:72] :FORWARD ACCEPT [4:336] :OUTPUT ACCEPT [6:328] -A INPUT -i eth1 -p tcp -j ACCEPT -A INPUT -i eth1 -p udp -j ACCEPT -A INPUT -i eth0 -p tcp --dport ssh -j ACCEPT COMMIT CentOS eth0 Link encap:Ethernet HWaddr 00:0C:29:74:1C:55 inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe74:1c55/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:499 errors:0 dropped:0 overruns:0 frame:0 TX packets:475 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:68326 (66.7 KiB) TX bytes:82641 (80.7 KiB) The main problem is that if i execute this command from the CentOS instance ssh 192.168.1.2 it takes more than 20s to connect. It seems like it's routing the connection to the wrong network. What could it be? Thanks!

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• OpenVPN + iptables / NAT routing

  - by Mikeage

  Hi, I'm trying to set up an OpenVPN VPN, which will carry some (but not all) traffic from the clients to the internet via the OpenVPN server. My OpenVPN server has a public IP on eth0, and is using tap0 to create a local network, 192.168.2.x. I have a client which connects from local IP 192.168.1.101 and gets VPN IP 192.168.2.3. On the server, I ran: iptables -A INPUT -i tap+ -j ACCEPT iptables -A FORWARD -i tap+ -j ACCEPT iptables -t nat -A POSTROUTING -s 192.168.2.0/24 -o eth0 -j MASQUERADE On the client, the default remains to route via 192.168.1.1. In order to point it to 192.168.2.1 for HTTP, I ran ip rule add fwmark 0x50 table 200 ip route add table 200 default via 192.168.2.1 iptables -t mangle -A OUTPUT -j MARK -p tcp --dport 80 --set-mark 80 Now, if I try accessing a website on the client (say, wget google.com), it just hangs there. On the server, I can see $ sudo tcpdump -n -i tap0 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on tap0, link-type EN10MB (Ethernet), capture size 96 bytes 05:39:07.928358 IP 192.168.1.101.34941 > 74.125.67.100.80: S 4254520618:4254520618(0) win 5840 <mss 1334,sackOK,timestamp 558838 0,nop,wscale 5> 05:39:10.751921 IP 192.168.1.101.34941 > 74.125.67.100.80: S 4254520618:4254520618(0) win 5840 <mss 1334,sackOK,timestamp 559588 0,nop,wscale 5> Where 74.125.67.100 is the IP it gets for google.com . Why isn't the MASQUERADE working? More precisely, I see that the source showing up as 192.168.1.101 -- shouldn't there be something to indicate that it came from the VPN? Edit: Some routes [from the client] $ ip route show table main 192.168.2.0/24 dev tap0 proto kernel scope link src 192.168.2.4 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.101 metric 2 169.254.0.0/16 dev wlan0 scope link metric 1000 default via 192.168.1.1 dev wlan0 proto static $ ip route show table 200 default via 192.168.2.1 dev tap0

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• Simple electric DC question. Current consumption

  - by Bobb

  Suppose you have DC power supply and a consumer connected to it (i.e. computer PSU and a hard drive). Suppose PSU which was supplied with the consumer has output 5V 1A. So I assume that the consumer should not consume more than 1A. Suppose the original PSU is broken now and I want to replace it with the one I have which is 5V 10A. My guess is that current is something which depends on the consumer. So if the consumer consumes normally 1A then it will not consume more than that even if it is connected to 10A PSU. In other word - am I right assuming that the consumer will not burn out being connected to a power supply with higher current output? P.S. my understanding is that voltage is something independent from the consumer. If you give it higher voltage it will burn (voltage is from PSU to the consumer). However current must be in opposite - consumer sucks as much current as it need not as much as PSU can provide (of course given that max PSU current is greater than the consumer needs)

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• Massive number of context switches on ksoftirqd

  - by Pace

  We have two servers that are grinding to a halt. One is a VM and the other is bare metal. Neither of them are running similar code but they are on the same network. It appears that an incredible number of context switches are arising from ksoftirqd (which is taking up a lot of CPU). vmstat output procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 1 0 0 605092 182496 2637556 0 0 0 0 4177 519187 8 19 73 0 0 2 0 0 605092 182496 2637556 0 0 0 0 4792 520980 8 19 74 0 0 3 0 0 605092 182496 2637552 0 0 0 0 2137 659640 18 26 56 0 0 ... pidstat output TCK4-BM-06A:~ # pidstat -w -I 5 Linux 2.6.32.12-0.7-default (TCK4-BM-06A) 07/02/2012 _x86_64_ 03:03:01 PM PID cswch/s nvcswch/s Command 03:03:06 PM 1 0.20 0.00 init 03:03:06 PM 4 386666.27 0.00 ksoftirqd/0 03:03:06 PM 6 0.60 0.00 ksoftirqd/1 03:03:06 PM 8 378213.17 0.00 ksoftirqd/2 03:03:06 PM 10 0.20 0.00 ksoftirqd/3 03:03:06 PM 12 0.20 0.00 ksoftirqd/4 03:03:06 PM 26 377115.37 0.00 ksoftirqd/11 03:03:06 PM 27 1.80 0.00 events/0 03:03:06 PM 28 1.00 0.00 events/1 03:03:06 PM 29 1.00 0.00 events/2 03:03:06 PM 30 1.00 0.00 events/3 03:03:06 PM 31 0.80 0.00 events/4 03:03:06 PM 32 0.80 0.00 events/5 ... My initial thought is that, since both are on the same network, something is flooding the network. Is this consistent with the data?

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• Catch-all DNS record

  - by Christian Sciberras

  Intro Our users have the ability to buy a domain (eg: user1.com) and make it point to out website, (eg: example.com), by simply pointing user1.com to ns1/ns2.example.com . Issue So far everything's good, however, example.com does not like this; we need to set up WHM/cpanel to make the server accept user1.com . Problem is, we'd rather made this automatic, possibly without having to use WHM API. The question We need some sort of "catch-all" wildcard entry so that we capture all of our user's possible domains.

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• Record the audio stream from HDMI monitor

  - by Nick

  I am trying to record sound playing on my comupter with Audacity but am running into some troubles. I have the stereo mix set to be the default audio recorder but it doesn't pick up the audio that is being played through my HDMI monitors speakers: Playback Recording When I plug in headphones the stereo mix will pick up the audio stream and I can record but not when playing through the HDMI. I have installed the latest audio drivers and have tried all the different record options to no avail. How can I capture the Audio stream going through the HDMI?

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• Xen domU mem-set issue

  - by Casper Langemeijer

  I'm running into a problem on my xen 4.0.1 server (debian squeeze) My host has 32G of memory, Domain-0 has 2048 M assigned to it. (scaled down with xm mem-set Domain-0 2048) top in Domain-0 confirms this. I created a virtual machine config file (using xen-tools) with the following options: memory = '512' maxmem = '2048' Both host and guest machines are running the standard 2.6.32-5-xen-amd64 debian kernel. 'xm create' creates a virtual machine with 512MB of memory as expected. Then 'xm mem-set domU 1024' will not expand the memory to 1024MB running 'xm mem-set domU 400' does set the memory to about 400MB Then 'xm mem-set domU 1024' will expands the memory back to 512MB Based on this, you would say that xm ignores the maxmem and silently sets maxmem to 512, but in the output of xm top the MAXMEM column reads 2G. the MEM column will not go over 512M. The output of xm list tells another story, it shows 1024 when I 'xm mem-set domU 1024'. I've googled myself all away around the internet for this issue and found that most people don't scale back Domain-0. I know I've seen a bugreport about the issue I'm experiencing, but can't find it anymore. Does anyone see what I'm doing wrong here? Hmm.. I just upgraded my kernel to the one provided by debian backports. The issue has gone.

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• PCI Tv Tuner not receiving signal

  - by C-dizzle

  I inherited an Angel II PCI Dual TV Tuner card, popped it into my computer's PCI slot, plugged in my coax cable, but am having trouble getting any type of signal to it. The computer I am using is Windows 7 Ultimate 32 bit, I know the card works because the computer recognizes it and installs the drivers, or at least I assume it works because of that. I'm trying to use Windows Media Center to watch/record tv. Here are a few things I have tried to get it working: Uninstalled/Reinstalled the newest drivers Tried hooking up an antenna to the coax input instead of my cable Instead of using cable splitter, went directly from wall output into card with coax cable Tried using different output on splitter in case the out port was bad I haven't tried a different coax cable yet, it should be fine since it's pretty new. Since this is my first time setting up a TV Tuner card, is there anything specific that I need to do with it? Is there any configuration that needs to be done on it? Do I need to have a digial receiver? I was getting pretty frustrated with it so I wanted to turn here to the experts, I'm sure someone can help me figure it out.

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• OpenVZ kernel panic

  - by GtoXic

  I recently installed OpenVZ on my VMWare box (To do some testing) and I get the following: https://www.dropbox.com/s/p38btkv5j84bvsh/Capture.JPG the GRUB config is as follows: # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/sda default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title OpenVZ (2.6.32-042stab057.1) root (hd0,0) kernel /vmlinuz-2.6.32-042stab057.1 ro root=/dev/VolGroup00/LogVol00 sysfs.deprecated=1 initrd /initrd-2.6.32-042stab057.1.img title CentOS (2.6.18-238.el5) root (hd0,0) kernel /vmlinuz-2.6.18-238.el5 ro root=/dev/VolGroup00/LogVol00 initrd /initrd-2.6.18-238.el5.img

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• can I display a JPG or PNG to the framebuffer (/dev/fb*)?

  - by ndmweb

  I know I can capture the framebuffer in linux using something like cp /dev/fb0 ~/myimage and re-display that by coping back to the device like so cp ~/myimage /dev/fb0. What format is the framebuffer image data in? and how would I go about displaying a pre-made image (jpg, png) to the framebuffer? Can I convert to this format using imagemagick? p.s. Im using a raspberry pi running raspbian. Update 11-12-2012 I ended up using pygame to display images in my application. Not sure if this uses the frame-buffer to display the images. But it meets my needs quite well.

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• I have a perl script that is supposed to run indefinitely. It's being killed... how do I determine who or what kills it?

  - by John O

  I run the perl script in screen (I can log in and check debug output). Nothing in the logic of the script should be capable of killing it quite this dead. I'm one of only two people with access to the server, and the other guy swears that it isn't him (and we both have quite a bit of money riding on it continuing to run without a hitch). I have no reason to believe that some hacker has managed to get a shell or anything like that. I have very little reason to suspect the admins of the host operation (bandwidth/cpu-wise, this script is pretty lightweight). Screen continues to run, but at the end of the output of the perl script I see "Killed" and it has dropped back to a prompt. How do I go about testing what is whacking the damn thing? I've checked crontab, nothing in there that would kill random/non-random processes. Nothing in any of the log files gives any hint. It will run from 2 to 8 hours, it would seem (and on my mac at home, it will run well over 24 hours without a problem). The server is running Ubuntu version something or other, I can look that up if it matters.

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• exim4 seem to stop listening

  - by trakos

  Hey, I have a strange problem with my exim4 configuration. I have a dedicated server running debian for quite a long time now, but I'm not really using it actively recently, so everything just worked due to lack of changes ;) However, recently, my exim4 smtp stopped answering on port 25. It does not respond through localhost, as well - even though it's set to listen on any interface available. Some things I've checked: ks:/home/trakos/Maildir/new# netstat -ap | grep exim tcp 0 0 *:smtp : LISTEN 12521/exim4 ks:/home/trakos/Maildir/new# exiwhat 12521 daemon: -q30s, listening for SMTP on port 25 (IPv4) ks:/home/trakos/Maildir/new# cat /var/log/exim4/rejectlog ks:/home/trakos/Maildir/new# cat /var/log/exim4/paniclog The queue is set for 30s only because I was running it in a non-daemon mode to see any output. Strangely enough, no suspicious output is given, netstat even shows it is listening on port 25, but still trying to telnet to it times out. The only things that may have changed recently are: I've got second IP for my server I remember that few days ago my spamassasin crashed, and I've started it up again So yeah, I'm really clueless about this one now :P I mean, I don't even know what could be failing here. Could someone give me some ideas what should I check next? PS: it has uptime of 442 days, so I haven't really tried rebooting it yet ^^

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• Grayed-Out Sleep and Hibernate Options on Windows 7 After Updating Graphics Driver

  - by Maxim Zaslavsky

  I have a Gateway M275 Tablet PC, on which I've installed Windows 7 Ultimate. The laptop is quite old, so there aren't any Win7 drivers for it, not to mention any Vista drivers. Win7 has been working for some time, but I noticed that my video output wasn't working. I went into Device Manager and found that I didn't have a driver for my video card: it just recognized it as the standard one. I searched online and found an XP driver for it, released by Gateway. Device Manager accepted this driver and prompted me to reboot. After that, I noticed that my Sleep and Hibernate options in the Shut Down menu have been grayed-out. I looked online and found that many people are attributing this to display drivers, as such an old driver would surely not be compatible with the standby procedures Windows 7 uses. To make it clear: I was able to Sleep and Hibernate before updating the drivers; now, I can't. Running powercfg /a gives me, "An internal system component has disabled this standby state," for each available standby mode. Is there some way that the driver can be modified to support hibernation? The new driver fixed my video output problem, but I guess hibernation is more important for me. If not, what steps should I take to remove the driver and just leave the standard Windows one, which previously supported hibernation and sleep on this computer? Thanks in advance.

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• Bonnie does not provide speed for Sequential Input / Block

  - by Lqp1

  I'm using ProxmoxVE and I would like to run some benchmarks regarding performances of this product. One of these benchmarks is bonnie++ ; it runs very well in a VM (qemu-kvm) but when I run it in a conainer (openVZ), it does not provide me reading speed (only writing). I don't understand why... Does anyone know what's happenning ? VMs ans Containers are Debian 7.4. Here's the output of bonnie in the container: root@ct2:/# bonnie++ -u root Using uid:0, gid:0. Writing a byte at a time...done Writing intelligently...done Rewriting...done Reading a byte at a time...done Reading intelligently...done start 'em...done...done...done...done...done... Create files in sequential order...done. Stat files in sequential order...done. Delete files in sequential order...done. Create files in random order...done. Stat files in random order...done. Delete files in random order...done. Version 1.96 ------Sequential Output------ --Sequential Input- --Random- Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP ct2 1G 843 99 59116 8 60351 4 4966 99 +++++ +++ 2745 8 Latency 9558us 3582ms 527ms 1672us 936us 5248us Version 1.96 ------Sequential Create------ --------Random Create-------- ct2 -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ Latency 19567us 358us 368us 107us 59us 25us 1.96,1.96,ct2,1,1401810323,1G,,843,99,59116,8,60351,4,4966,99,+++++,+++,2745,8,16,,,,,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,9558us,3582ms,527ms,1672us,936us,5248us,19567us,358us,368us,107us,59us,25us The filesystem for / is of type "simfs", which is a pseudo filesystem for openVZ. Maybe it's related to this issue but I can't find anyone with the same issue with bonnie and openVZ... Thanks for your help. Regards, Thomas.

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• How to determine what program send the packet recorded in Wireshark?

  - by Tono Nam

  I was taking some tutorials on Wireshark in order to analyze the packets sent and received when talking to a web server for purposes of learning. When I start listening/recording packets in Wireshark, there where so many packages being recorded (700 packages per minute). Is it normal to have that much traffic if I have all the programs that will cause traffic such as all browsers, log me in, dropbox, goto meeting, etc., closed? In order to try to solve the problem I am analyzing random packets. Take for instance this filter: I just selected a random IP: 74.125.130.99. So how can I know from what program those packets where created? Also how can I get more info about that communication bwtween my computer (192.168.0.139) and that server (74.125.130.99)? I just selected a random IP from the Wireshark capture. There are also other IPs that I have no idea why they are communicating with my computer. How can I figure that out?

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• PHP Page Stopped outputting content After Running "yum install php-devel" Command

  - by stwhite

  This error is bizarre but after running the "yum install php-devel" command (after a long day of trying to install Facedetect and OpenCV for face detection) my site stopped functioning. The site uses mysql and php. When you hit the url, the page executes the mysql and the php, but it appears to randomly stop outputting the content of the page. None of the code was changed and the site was working flawlessly prior to running the mentioned ssh command. I do use output buffering in the site, but after removing the calls "ob_flush", "ob_end_flush" and "ob_start" it didn't appear to help—still having issues with the site. Any ideas what this could be? Here is output from terminal: [myserver ~]# cd Facedetect-4b1dfe1 [myserver Facedetect-4b1dfe1]# phpize Configuring for: PHP Api Version: 20090626 Zend Module Api No: 20090626 Zend Extension Api No: 220090626 [myserver Facedetect-4b1dfe1]# configure bash: configure: command not found [myserver Facedetect-4b1dfe1]# phpize && configure && make && make install Configuring for: PHP Api Version: 20090626 Zend Module Api No: 20090626 Zend Extension Api No: 220090626 bash: configure: command not found bash: Read: command not found [myserver Facedetect-4b1dfe1]# make make: *** No targets specified and no makefile found. Stop. [myserver Facedetect-4b1dfe1]# yum install php5-devel

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• Are there any tools for monitoring individual Apache virtual hosts in real-time?

  - by Dave Forgac

  I'm looking for a way to monitor and record Apache traffic, separated by virtual host. I am currently using Munin to capture this and other data for the entire server however I can't seem to find a way to do this by vhost. This link describes using a module called mod_watch which is apparently no longer in development: http://www.freshnet.org/wordpress/2007/03/08/monitoring-apaches-virtualhost-with-munin/ The file that is listed as being compatible with Apache 2.x is reported to have problems with missing vhosts an reporting data correctly. Does anyone know of a reliable way to determine real-time traffic per vhost? If I can find this it should be easy enough to write a new Munin plugin.

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• How can I convert and repair MPEG-TS (DVB-S captures) for better playback?

  - by SofaKng

  I have a lot of MPEG-TS video files (H.264 video with AC3 or MP3 in a .TS container) captured from a DVB-S capture card. When I play these videos it's much slower to seek in the video (ie. skip 30 seconds, etc) than with other files. I'm not sure if the problem is the H.264 encoding (reference frame count?) or the MPEG-TS container, or if the MPEG-TS file contains sync errors, etc. Does anybody have a good workflow for converting and repairing these files?

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• USB-to-Serial showing gibberish at 115200 Baud

  - by Mose

  I've got a serious problem which drives me crazy because I tried everything I could think of. First of all, I made a video: http://youtu.be/boghkuq7L_s but please read the following text for more information, not only view the video! When using a USB-to-Serial interface everything works as long as I don't go beyond 57600 Baud. At higher rates I only get giberish like this: év.­b0JNLYÆÿ¿iëd0U²(kßÞb! ú]/xscB!ï¯!BoXûÿ1ïâÖCÿ6ÌAnè*íÌC)º¿BíÞØ.C.@ÆÃwHJÂs "YE:ñ.èFðÌCÊ÷ÞÄ !x H w6@BtbHJ ̪ Ì6ì H¾a¿bH.">îvy®;f<ßBÌ p­L¨fæH­E ­þ¼MBÞI What makes the problem so strange is, I exchanged every component and the problem still presists. I tried differtent OSes (Ubuntu, WinXP, Win7, OSX 10.7) with 32 and 64 Bit. I tried USB-to-Serial interface from FTDI and Prolific. I tried reading the output from my Raspberry PI and from an Asterisk Appliance. I changed the cables and the wiring. Nothing helped. In the video I made a example with a old Notebook with native COM and put the USB-to-Serial to the same connection as "sniffer" (only Rx and GND connected) to make sure the output and everything is ok as one can see on the native port. The voltage is ok. Settings for both are 115200 Baud, 8 Bit with 1 Stop and no flow control. Native is ok. USB is messed up. I used the newest drivers and double checked all connections. I have no idea what is wrong here. As I couldn't find anyone describing problems like this I question my long experiance in computer science and think I'm doing some completly wrong... Please help :-/

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• Wireshark Not Displaying Packets From Other Network Devices, Even in Promisc Mode

  - by eb80

  System Setup: 1. MacBook running Mountain Lion. 2. Wireshark installed and capturing packets (I have "capture all in promiscuous mode" checked) 3. I filter out all packets with my source and destination IP using the following filter ("ip.dst != 192.168.1.104 && ip.src != 192.168.1.104") 4. On the same network as the MacBook, I use an Android device (connecting via WiFi) to make HTTP requests. Expected Results: 1. Wireshark running on the MacBook sees the HTTP request from the Android device. Actual Results: 1. I only see SSDP broadcasts from 192.168.1.1 Question: What do I need to do so that Wireshark, like Firesheep, can see and use the packets (particularly HTTP) from other network devices on the same network?

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• Jailkit not locking down SFTP, working for SSH

  - by doublesharp

  I installed jailkit on my CentOS 5.8 server, and configured it according to the online guides that I found. These are the commands that were executed as root: mkdir /var/jail jk_init -j /var/jail extshellplusnet jk_init -j /var/jail sftp adduser testuser; passwd testuser jk_jailuser -j /var/jail testuser I then edited /var/jail/etc/passwd to change the login shell for testuser to be /bin/bash to give them access to a full bash shell via SSH. Next I edited /var/jail/etc/jailkit/jk_lsh.ini to look like the following (not sure if this is correct) [testuser] paths= /usr/bin, /usr/lib/ executables= /usr/bin/scp, /usr/lib/openssh/sftp-server, /usr/bin/sftp The testuser is able to connect via SSH and is limited to only view the chroot jail directory, and is also able to log in via SFTP, however the entire file system is visible and can be traversed. SSH Output: > ssh testuser@server Password: Last login: Sat Oct 20 03:26:19 2012 from x.x.x.x bash-3.2$ pwd /home/testuser SFTP Output: > sftp testuser@server Password: Connected to server. sftp> pwd Remote working directory: /var/jail/home/testuser What can be done to lock down SFTP access to the jail? FWIW, I mostly used this as a guide: http://digitalpatch.blogspot.com.ar/2010/03/openssh-daemon-hardening-part-3-setup.html

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• FreeBSD 9 (amd64) reboot/shutdown process is very slow

  - by nbari

  I have a Dell Poweredge 2900 III with FreeBSD 9 (amd64), the server uses mfi wich handles a raid10, I had to reboot the server, but notice that either when rebooting or shutting down the server, something is going wrong, besides taking to much time to reboot/shutdown, after rebooting I notice that that some ldap instances within some jails could'nt start and this was because the database was corrupted. This make me think that probably something was wrong with the disks or mfi card, but checking the disk array / logs everything seems to be working fine. My set up is something like this: Host server has the minimum base of FreeBSD 9 amd64, within I create some jails, the ones contain services like mysql, email, and some others ldap. With FreeBSD 7 and 8 I didn't notice this behavior but with FreeBSD 9 something is not working well. I did a clean installation of FreeBSD 9 and root filesystem is using ZFS. Attached is an image hoping some one can give me a hint of what to check or any kind of advice. reboot capture screen image

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• log execution of certain commands on linux

  - by jlsksr

  I have to maintain a system (debian) on which several users are allowed to install programs - so I would like to log, for example, if anyone executes "apt-get install" or "apt-get purge", so I can keep track of manually installed packages.. I'm looking for a general way to achieve this; it's not just APT, but several programs/scripts etc. Any ideas? /edit a google-search with few different keywords brought up this: http://serverfault.com/questions/201221/how-to-log-every-linux-command-to-a-logserver http://stackoverflow.com/questions/15698590/how-to-capture-all-the-commands-typed-in-unix-linux-by-any-user http://sourceforge.net/projects/rootsh/

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