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  • Linux route add between static LAN and Wifi Gateway

    - by Hamza
    I have two local machines connected to each other via wired ethernet and one of those machines is also connected to a wifi network which provides internet access. A pseudo-graphical representation of the topology is as follows: (PC2)----------(PC1)---------(Wifi Gateway) 192.168.2.x 10.0.0.x The configuration on PC2 is: iface eth0 inet static address 192.168.2.2 network 192.168.2.0 netmask 255.255.255.0 gateway 192.168.2.1 ...and the configuration on PC1 is: iface eth0 inet static address 192.168.2.1 network 192.168.2.0 netmask 255.255.255.0 gateway 192.168.2.1 On PC1, I've added a default route for wlan0 as I couldn't access the internet otherwise: route add default gw 10.0.0.1 wlan0 And also tried setting the gateway for the 192.168.2.x network using: route add -net 192.168.2.0 netmask 255.255.255.0 gw 10.0.0.1 But I still can't access internet from PC2. Edit I don't have access to the wifi gateway.

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  • Automating and deploying new linux servers

    - by luckytaxi
    I'm in the process of developing a method to automate new virtual machines into my environment. 90% of our machines are virtual but the process is similar for both physical and vmware based images. What I do now is I use cobbler to install the base OS. The kickstart script has post hooks to modify the yum repo and installs puppet and func. Once the servers are running, I manually add them into nagios and sign the certificate via the puppetmaster. I've since migrated most of the resources to use mysql as the backend. I wanted to see what others are doing and my goal for 2011 is to have puppet inventory the hardware into mysql, and somehow i'll script a python script to have nagios grab the info and automatically add it for monitoring purposes. It's kind of tedious to have to add each new server into nagios, puppet's dashboard, munin, etc...

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  • Two parts: linux startup script to connect to bluetooth and cron to keep it connected

    - by D.R.
    I have a mini bluetooth keyboard and a Raspberry Pi running a Debian-based distro. I know the MAC address of the keyboard but for this question, let's just use AA:BB:CC:DD:EE:FF. Right now I have to have a wired keyboard connected as well as my bluetooth dongle for the mini-keyboard and on the wired keyboard, I have to run the following when the device boots up: sudo hidd --connect AA:BB:CC:DD:EE:FF If the device goes idle for too long, then the bluetooth disconnects and I have to pull out my wired keyboard and retype that same command. What I'm looking for it a way to have that command run at startup and a way to sense if it gets disconnected so that it will auto reconnect. The annoying thing is that they keyboard has to be in pairing mode (even though it has already been paired) when I run that command, otherwise it tells me the host is down. So perhaps the script needs to prevent it from disconnecting due to inactivity, otherwise I'll have to put it back in pairing mode to reconnect. So to recap: - A script to connect at startup (I can make sure to put the keyboard into pairing mode before turning it on) - A script to prevent it from disconnecting (maybe some sort of signal to send to it every 60 seconds or something?) Any help with this is greatly appreciated! StackOverflow is always the best place to find answers to weird questions! I've been searching long and hard for an answer, but finally had to resort to coming here! Thanks!

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  • Configure Samba server via command line Linux CentOS

    - by Greg Alexander
    I am trying to get samba working on centOS... I installed it via Yum, changed the samba config file to: [ShareName] path = /var/www/html/ public = no writable = yes printable = no create mask = 0765 valid users = username Restarted samba and it did nothing.. the windows network is not seeing the share at all. I realize there is most likely something I am missing but I have always done it with the GUI, but unable to do that this time.. Any pointers?

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  • Configuration Deployment to Linux Systems

    - by William
    Hello, I'm looking for a nice way to add / remote ips (and possibly interact with an asset inventory system to track where ips are), start / stop processes, download logs, and all around genearal system admin duties from one place. It's okay if I require more than 1 program. That would still be better than having 50 million terminals open and trying to trace ip assignments etc on whiteboards. I'd also like to know if anyone knows any good asset management programs. Best Regards, William

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  • DD-WRT login does not work on Linux in Virtualbox

    - by superuser
    I am running on Windows 8 and installed Lubuntu 13.04 in VirtualBox. I cannot login to DD-WRT in Virtualbox. I can login to DD-WRT on Windows 8. I have used the same credentials and tried many times, but to no avail. How can I login successfully to DD-WRT in VirtualBox? I have even tried searching on the Internet but I could not find any relevant solutions. Additional Information: Using Chromium ( I have tried it on Firefox and it does not work ) Enabled secure shell: but it still does not work. If you require more information, please kindly make a comment below.

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  • How to configure multiple video cards in linux?

    - by Jader Dias
    In Ubuntu Lucid Lynx RC, I got NVidia's TwinView to work with 2 monitors in a single video card. But when I use the same monitors but split them between the video cards I can't make TwinView work and it starts a X server for each monitor. I want the same effect I had with one video card.

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  • Using a buffalo wl12-pci-g54s on Debian Linux

    - by Nic Hubbard
    I have a buffalo wl12-pci-g54s wireless card that I want to install in my PC running Debian. I need this so I can move the server to a better location in another room. So, is there an easy way to do this? Some package that I can install and get up and running? Other instructions that I found online have been confusing. I am also using a static IP, so I need to retain that when I make the switch. Thanks!

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  • Best way to grow Linux software RAID 1 to RAID 10

    - by Hans Malherbe
    mdadm does not seem to support growing an array from level 1 to level 10. I have two disks in RAID 1. I want to add two new disks and convert the array to a four disk RAID 10 array. My current strategy: Make good backup. Create a degraded 4 disk RAID 10 array with two missing disks. rsync the RAID 1 array with the RAID 10 array. fail and remove one disk from the RAID 1 array. Add the available disk to the RAID 10 array and wait for resynch to complete. Destroy the RAID 1 array and add the last disk to the RAID 10 array. The problem is the lack of redundancy at step 5. Is there a better way?

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  • How to make the specified directory as FTP home directory {linux}

    - by Mirage
    I have a directory called /backups where all backups are stored for all users with dated folder Now i want to make one FTP user so that when it connect via ftp then he should go straight into that folder to download those backups In my whm/cpanel i have pure pure-ftpd installed. I don't want to make a account for that user like i have website for each user but something by which that user cna download those files Any ideas

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  • Linux: cat /dev/video0 TS into some kind of ring puffer

    - by user155384
    I want to cat a /dev/video0 device output (Transport Stream) into a temporary ring buffer. In fact i do not want that the file is growing over the time. Simultaneously access is not possible. So the purpose is to have a file (buffer, Fifo, whatever) to be accessed by more than one consumer (example: tail -f, mencoder, VLC, ....). Some kind of scenario: 1# cat /dev/video0 > mybuffer.ts And then multiple access 2# tail -f mybuffer.ts > extract1.ts 2# tail -f mybuffer.ts > extract2.ts 3# ffmpeg ... Does someone have an idea how to do something like this?

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  • linux Firewall question

    - by bcrawl
    I have few generic questions about firewalls and I thought the community up here could help me out. 1) So I recently installed Ubuntu server barebones. I checked for open ports, none were open which was great. Is that because there was a firewall installed or was it because there were no applications installed? 2) I installed some applications, (Apache, postgres,ssh, Java app and some few). Between these, I ended up opening a few ports (~10). Now I have a list of all the ports I would need open. So, how do I go about protecting them? [Is this the right question to ask? does the process go like this, Install Firewall - Allow Said needed ports - deny rest using IPtables rules] This is going to be open to the internet. Hosting low traffic ecommerce sites. 3) What do you think is the easiest way for me to quasi-secure the server, [low maintenance overhead/simplicity. Any open source "software" which can make my life easier?] 4) Finally, of the said open ports [2], I have 2 ports I need to close because they are telnet ports. Can I close these ports without installing a "firewall" Thanks all for the help and Merry Christmas!!!!!!!

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  • How to use WPA2 client mode in the Linux-based Cisco WAP4410N access point

    - by joechip
    I have a Cisco WAP4410N access point that I want to use as a client to connect to a WPA2 wireless network (for WLAN service monitoring purposes). Supposedly this access point supports a "Wireless Client/Repeater" mode that allows to do this. The Repeater function is optional (I have that box unchecked so that nobody can connect to this access point wirelessly). I have verified through SSH that the access point gets configured as a client and not as a Master. But it never associates to the SSID I ask it to. This is what iwconfig shows: ath04 IEEE 802.11ng ESSID:"myownssid" Mode:Managed Channel:0 Access Point: Not-Associated Bit Rate:0 kb/s Tx-Power:14 dBm Sensitivity=1/3 Retry:off RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality=0/94 Signal level=161/162 Noise level=161/161 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 Although I've never done this from the command line, I suppose I could use wpa_supplicant or wpa_client to associate it, but I don't know how to do that without editing configuration files and the filesystem is readonly. Besides, I would have to run those commands manually after every reboot. I'd like to know how to do this the Cisco way, if possible. If not, any trick to make this work would be useful. Edit: This is with the latest firmware, 2.0.4.2. And I found that not all of the filesystem is readonly, since /var and /tmp are mounted with type ramfs.

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  • Seagate 3TB ST3000DM001 hard drive not recognized by Linux, causes fdisk to hang

    - by MountainX
    I'm running Kubuntu 12.04. I have a brand new, never used Seagate 3TB ST3000DM001 hard drive. It's an internal drive. I installed it in a USB enclosure. When I connect it to my PC, nothing happens automatically. When I run sudo fdisk -l, fdisk hangs (without reporting this drive) until I disconnect this drive from the USB port. blkid won't report it either. I tried connecting it to both USB 2.0 and USB 3.0 ports on my PC. I got the same result either way. I tried two different USB enclosures with the same result. If I take the same drive, same enclosure and connect it to a Windows 7 laptop, it is recognized automatically as a USB mass storage device. I want to format the drive (probably ext4) and copy files to it. I have another drive, also in a USB enclosure, that is connected via USB 3.0 to this PC and it works fine. It's a 2.0 TB Samsung HDD. I plan to copy files from the 2TB to the 3TB drive, once I get this issue resolved. My motherboard is an Asus Asus P8B WS LGA1155/ Intel C206/ Quad CrossFireX/ SATA3&USB3.0/ A&2GbE/ ATX. What is the resolution?

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  • Does Moonlight work on linux in Google Chrome?

    - by Matthew
    I'm trying to install Moonlight, but I can only find instructions for setting it up in Firefox. And in the Ubuntu 10.04 repositories, I found a "moonlight-plugin-mozilla" package, but not "moonlight-plugin-chrome" (or similar). Is there any way to do this, or does Moonlight not yet run in Chrome?

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  • Best way to grow Linux software RAID 1 to RAID 10

    - by Hans Malherbe
    mdadm does not seem to support growing an array from level 1 to level 10. I have two disks in RAID 1. I want to add two new disks and convert the array to a four disk RAID 10 array. My current strategy: Make good backup. Create a degraded 4 disk RAID 10 array with two missing disks. rsync the RAID 1 array with the RAID 10 array. fail and remove one disk from the RAID 1 array. Add the available disk to the RAID 10 array and wait for resynch to complete. Destroy the RAID 1 array and add the last disk to the RAID 10 array. The problem is the lack of redundancy at step 5. Is there a better way?

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  • Autodetect/mount SDCards and run script for them on Linux

    - by Brendan
    Hey Everyone, I'm currently running SME Server, and need to have a script run upon the attachment of SD Cards to my server. The script itself works fine (it copies the contents of the cards), but the automounting and execution of the script is where I'm having issues. The I have a USB hub consisting of 10 USB ports; that shows up as: [root@server ~]# lsusb Bus 004 Device 002: ID 0000:0000 Bus 004 Device 001: ID 0000:0000 Bus 003 Device 001: ID 0000:0000 Bus 002 Device 001: ID 0000:0000 Bus 001 Device 055: ID 1a40:0101 TERMINUS TECHNOLOGY INC. Bus 001 Device 051: ID 1a40:0101 TERMINUS TECHNOLOGY INC. Bus 001 Device 050: ID 1a40:0101 TERMINUS TECHNOLOGY INC. Bus 001 Device 001: ID 0000:0000 (The hub is the TERMINUS TECHNOLOGY INC entries) As I cannot plug SD Cards directly into the server; I use a USB to SD card attachement (10 of them) plugged into the hub to read the cards. Upon pluggig the 10 attachments (without cards) into the hub; lsusb yields the following: [root@server ~]# lsusb Bus 004 Device 002: ID 0000:0000 Bus 004 Device 001: ID 0000:0000 Bus 003 Device 001: ID 0000:0000 Bus 002 Device 001: ID 0000:0000 Bus 001 Device 073: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 072: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 071: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 070: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 069: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 068: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 067: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 066: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 065: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 064: ID 05e3:0723 Genesys Logic, Inc. Bus 001 Device 055: ID 1a40:0101 TERMINUS TECHNOLOGY INC. Bus 001 Device 051: ID 1a40:0101 TERMINUS TECHNOLOGY INC. Bus 001 Device 050: ID 1a40:0101 TERMINUS TECHNOLOGY INC. Bus 001 Device 001: ID 0000:0000 As you can see, the readers are the "Gensys Logic, Inc" entries. Plugging in an SD card to a reader doesn't affect lsusb (it reads exactly as above), however my system recognises the cards fine; as indicated by dmesg: Attached scsi generic sg11 at scsi54, channel 0, id 0, lun 0, type 0 USB Mass Storage device found at 73 SCSI device sdd: 31388672 512-byte hdwr sectors (16071 MB) sdd: Write Protect is on sdd: Mode Sense: 03 00 80 00 sdd: assuming drive cache: write through SCSI device sdd: 31388672 512-byte hdwr sectors (16071 MB) sdd: Write Protect is on sdd: Mode Sense: 03 00 80 00 sdd: assuming drive cache: write through sdd: sdd1 SCSI device sdd: 31388672 512-byte hdwr sectors (16071 MB) sdd: Write Protect is on sdd: Mode Sense: 03 00 80 00 sdd: assuming drive cache: write through SCSI device sdd: 31388672 512-byte hdwr sectors (16071 MB) sdd: Write Protect is on sdd: Mode Sense: 03 00 80 00 sdd: assuming drive cache: write through sdd: sdd1 SCSI device sdd: 31388672 512-byte hdwr sectors (16071 MB) sdd: Write Protect is on sdd: Mode Sense: 03 00 80 00 sdd: assuming drive cache: write through SCSI device sdd: 31388672 512-byte hdwr sectors (16071 MB) sdd: Write Protect is on sdd: Mode Sense: 03 00 80 00 sdd: assuming drive cache: write through sdd: sdd1 If I manually mount sdd1 (mount /dev/sdd1 /somedirectory/) this works fine. What I'm really after is a solution that automounts each of the cards as they are inputted into the reader; and executes a script for them (this will involve copying their contents to another directory). My problem is that I don't know how to do this; I don't think udev will work as the USB devices don't change; if I could somehow get udev working with /dev/disk/by-path/ however I think this is doable (it seems to keep constant entries). ls /dev/disk returns: pci-0000:00:1d.7-usb-0:4.1.1.1:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.1.1.2:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.1.1.3:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.1.1.4:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.1.2:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.1.3:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.1.4:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.2:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.3:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.4:1.0-scsi-0:0:0:0 pci-0000:00:1d.7-usb-0:4.4:1.0-scsi-0:0:0:0-part1 pci-0000:0b:01.0-scsi-0:0:1:0 pci-0000:0b:01.0-scsi-0:0:1:0-part1 pci-0000:0b:01.0-scsi-0:0:1:0-part2 From above, we can see I have only one card plugged into the reader (pci-0000:00:1d.7-usb-0:4.4:1.0-scsi-0:0:0:0-part1). Going mount /dev/disk/by-path/pci-0000\:00\:1d.7-usb-0\:4.4\:1.0-scsi-0\:0\:0\:0-part1 Works and places the card under /media/usbdisk/, however: mount /dev/disk/by-path/pci-0000\:00\:1d.7-usb-0\:4.4\:1.0-scsi-0\:0\:0\:0-part1 slot1/ doesn't work, and returns "mount: can't get address for /dev/disk/by-path/pci-0000" Any ideas and solutions would be great, I've seen the knowledge of a lot of the guys on here before so I'm hopeful someone can help me out. Thanks

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  • Blocking ports on the public IP assigned to lo interface in GNU/Linux

    - by nixnotwin
    I have setup my Ubuntu server as a router and webserver by following the answer given here. My ISP facing interface eth0 has a private 172.16.x.x/30 ip and my lo interface has a public IP as mentioned in the answer to the question linked above. The setup is working well. The only snag I have experienced is that I could not find a way to block the ports exposed by the public IP on the lo interface. I tried doing iptables -A INPUT -i eth0 -j DROP, and my server lost connectivity to the public network (internet). I could not ping any public ips. What I want is a way to block ports that are exposed by the public ip on the lo interface. And also I require iptables rules that can expose ports like 80 or openvpn port to the public network.

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  • Unable to mount device on Linux (XFS)

    - by gunnx
    I am unable to mount a device on my server due to error when mounting, the device is type XFS. The mount command returns message: "mount: structure needs cleaning" I've tried using xfs_check and it just returns a message saying that there are entries in the log that need relaying and that you need to run xfs_repair -L where "-L" option deletes the log file but might/will result in data loss/corruption. Does anyone know if you can access/mount the drive without repairing, or anyway to minimise data loss?

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  • Best way to execute a command after Linux system halt

    - by Lukas Loesche
    Problem: The SSDs in our servers require a power cycle (i.e. off/on, not reset/warm reboot) after a firmware update. Thoughts: Using 'ipmitool chassis power cycle' I can cycle the server's power. However this would cut the power while the system is still running, filesystems are mounted, etc. What I basically want is a delayed power cycle so the system has a change to halt. But I guess that would have to be implemented on the server's IPMI board, so it's not really an option. My initial idea was to dynamically create a ramdisk containing the tool and libs and somehow integrate that into the halt process. I saw there's a /etc/init.d/halt, so that would be my starting point. Although I believe the kernel at some point in the shutdown process starts to kill off remaining processes. So I'm not even sure if that's a viable way. Question: What would be the best way to execute ipmitool (or any other command), after the system has halted and all regular filesystems are unmounted?

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  • How do I compare binary files in Linux?

    - by frustratedCmpNoLongerUser
    I need to compare two binary files and get the output in the form <fileoffset-hex <file1-byte-hex <file2-byte-hex for every different byte. So if file1.bin is 00 90 00 11 in binary form and file2.bin is 00 91 00 10 I want to get something like 00000001 90 91 00000003 11 10 What is the easiest way to accomplish the goal? Standard tool? Some third-party tool? (Note: cmp -l should be killed with fire, it uses a decimal system for offsets and octal for bytes.)

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  • Disabling Laptop (PB TJ-75) faulty card reader Linux

    - by Gab
    My problem comes from that my laptop [PB TJ-75] has a faulty Alcor card reader. It’s 100% sure, the device is dead and unusable whatever the OS is. It cannot be disabled in BIOS [latest: Vendor: Phoenix Technologies LTD Version: V1.26 Release Date: 05/04/2010]. If I could take it apart from the main board easily, and if with that, the system would never look again for it, I’ll be very happy! Is it possible, has anyone ever tried this? Or maybe, replacing the BIOS with a more open one, which let you disable the card reader. Does this exists? Here's what I've tried to disable it so far. In Win7, I choose ‘disable’ in device manager and that’s ok. If not, the device keeps on appearing and disappearing and lot of resources are used. In Lubuntu 13.04, I got extra boot time, with the msg:'sdb, assuming drive cache, etc.’ I tried other distros (isos booted by grub). I can boot Puppy, Gparted, and Redobackup apparently without any problem. I cannot boot Debian, live or install + tried Crunchbang and Tails. I got a loop :’usb device, scsi n+1 blabla‘. I tried "nousb", no result, I have blacklisted EHCI, no result, then usb_storage module, better boot time in Lubuntu, with just the message "...data transfer failed", better shutdown time too. But, no way to use usb storage medias. In Debian, it ends with BusyBox prompt. Is it possible to just disable that Alcor card reader? Does it have a specific module? Is there a special kernel boot option that I missed? Does it have something to do with kernel recompiling, and if yes, how to do with isos? Programming a driver which says everything is ok (out of my comprehension for the moment)? Disabling device by vendor id? What is the best way?

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