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  • Four Emerging Payment Stories

    - by David Dorf
    The world of alternate payments has been moving fast of late.  Innovation in this area will help both consumers and retailers, but probably hurt the banks (at least that's the plan).  Here are four recent news items in this area: Dwolla, a start-up in Iowa, is trying to make credit cards obsolete.  Twelve guys in Des Moines are using $1.3M they raised to allow businesses to skip the credit card networks and avoid the fees.  Today they move about $1M a day across their network with an average transaction size of $500. Instead of charging merchants 2.9% plus $.30 per transaction, Dwolla charges a quarter -- yep, that coin featuring George Washington. Dwolla (Web + Dollar = Dwolla) avoids the credit networks and connects directly to bank accounts using the bank's ACH network.  They are signing up banks and merchants targeting both B2B and C2B as well as P2P payments.  They leverage social networks to notify people they have a money transfer, and also have a mobile app that uses GPS location. However, all is not rosy.  There have been complaints about unexpected chargebacks and with debit fees being reduced by the big banks, the need is not as pronounced.  The big banks are working on their own network called clearXchange that could provide stiff competition. VeriFone just bought European payment processor Point for around $1B.  By itself this would not have caught my attention except for the fact that VeriFone also announced the acquisition of GlobalBay earlier this month.  In addition to their core business of selling stand-beside payment terminals, with GlobalBay they get employee-operated mobile selling tools and with Point they get a very big payment processing platform. MasterCard and Intel announced a partnership around payments, starting with PayPass, MasterCard's new payment technology.  Intel will lend its expertise to add additional levels of security, which seems to be the biggest barrier for consumer adoption.  Everyone is scrambling to get their piece of cash transactions, which still represents 85% of all transactions. Apple was awarded another mobile payment patent further cementing the rumors that the iPhone 5 will support NFC payments.  As usual, Apple is upsetting the apple cart (sorry) by moving control of key data from the carriers to Apple.  With Apple's vast number of iTunes accounts, they have a ready-made customer base to use the payment infrastructure, which I bet will slowly transition people away from credit cards and toward cheaper ACH.  Gary Schwartz explains the three step process Apple is taking to become a payment processor. Below is a picture I drew representing payments in the retail industry. There's certainly a lot of innovation happening.

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  • Bridging Virtual Networking into Real LAN on a OpenNebula Cluster

    - by user101012
    I'm running Open Nebula with 1 Cluster Controller and 3 Nodes. I registered the nodes at the front-end controller and I can start an Ubuntu virtual machine on one of the nodes. However from my network I cannot ping the virtual machine. I am not quite sure if I have set up the virtual machine correctly. The Nodes all have a br0 interfaces which is bridged with eth0. The IP Address is in the 192.168.1.x range. The Template file I used for the vmnet is: NAME = "VM LAN" TYPE = RANGED BRIDGE = br0 # Replace br0 with the bridge interface from the cluster nodes NETWORK_ADDRESS = 192.168.1.128 # Replace with corresponding IP address NETWORK_SIZE = 126 NETMASK = 255.255.255.0 GATEWAY = 192.168.1.1 NS = 192.168.1.1 However, I cannot reach any of the virtual machines even though sunstone says that the virtual machine is running and onevm list also states that the vm is running. It might be helpful to know that we are using KVM as a hypervisor and I am not quite sure if the virbr0 interface which was automatically created when installing KVM might be a problem.

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  • Why can’t two programs access my webcam simultaneously?

    - by qdii
    I first launch cheese and my webcam turns on. I then run vlc to grab the output of /dev/video0 but it fails with: [0x7f3ea40012e8] v4l2 demux error: cannot set input 0: Device or resource busy [0x7f3ea40012e8] v4l2 demux error: cannot set input 0: Device or resource busy [0x7f3ea4002168] v4l2 access error: cannot set input 0: Device or resource busy [0x7f3ea4002168] v4l2 access error: cannot set input 0: Device or resource busy [0x7f3eb4000b78] main input error: open of `v4l2:///dev/video0' failed Whatever pair of video programs I run (skype, cheese, vlc, etc.), the result is always the same: the second program can no longer use the webcam when the first one has already grabbed the output. However I find it curious as video4linux states: In general, V4L2 devices can be opened more than once. When this is supported by the driver, users can for example start a "panel" application to change controls like brightness or audio volume, while another application captures video and audio. My webcam is seen in lspci as 058f:a014 Alcor Micro Corp. Asus Integrated Webcam, but I don’t even know what the underlying driver is, so I can’t check whether my problem is driver-related or not. Any input would be more than welcome!

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  • Unix LVM: how to resize root lvm

    - by Hussein Sabbagh
    I took over a virtual server at work after a co-worker left. He, however, setup the server incorrectly at multiple stages and im cleaning them up as I run into them... Currently I realized that the file system is broken in half onto 2 logical volumes both at 50gb. One is mounted as the root directory and the other as the /home directory. Saddly, the server has taken up 46gb of the root lv and i need to expand it. I have already shrunk and remounted the home lv. I resized the root lv, but I can't figure out how to unmount the root directory while the computer is on. Obviously this needs to be done before I can finalize the expansion, but I don't know how. I'd appreciate any help or pointing in the right direction. Thanks in advance. PS this is on a CentOS server.

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  • Running out of LowMem with Ubuntu PAE Kernel and 32GB of RAM

    - by magneticMonster
    I'm running a Java data import process on a 32-bit Ubuntu 10 PAE kernel machine. After running the process for a while, the oom-killer zaps my Java process. After some Googling and digging through docs, it looks like the system is running out of LowMem. I started the process for the third time and am watching free -lm show me Low: 464 386 77 with the free value (77MB) slowly decreasing. Why am I running out of lowmem and how do I increase it? Some details: $ cat /proc/sys/vm/lowmem_reserve_ratio 256 256 32 $ free -lm total used free shared buffers cached Mem: 32086 24611 7475 0 0 24012 Low: 464 407 57 High: 31621 24204 7417 -/+ buffers/cache: 598 31487 Swap: 2047 0 2047

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  • Are spurious TCP connections on port 53 a problem?

    - by Darren Greaves
    I run a server which amongst other things uses tinydns for DNS and axfrdns for handling transfer requests from our secondary DNS (another system). I understand that tinydns uses port 53 on UDP and axfrdns uses port 53 on TCP. I've configured axfrdns to only allow connections from my agreed secondary host. I run logcheck to monitor my logs and every day I see spurious connections on port 53 (TCP) from seemingly random hosts. They usually turn out to be from ADSL connections. My question is; are these innocent requests or a security risk? I am happy to block repeat offenders using iptables but don't want to block innocent users of one of the websites I host. Thanks, Darren.

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  • what service to restart for /var/log/auth.log to start

    - by Bond
    Here is a situation since the log files on my server had grown to several Gigabytes I took a backup of directory /var/log and then manually when to each subdirectory of /var/log and the files which were big in size I did cat > /var/log/file_which_is_big press 2 times enter key (basically over wrote those files with a blank space) and then Ctrl+C So basically I over wrote those files to be blank. Now when I open /var/log/auth.log I don't see any entry (which is expected also since I over wrote) but when I exit the SSH session and login again then also I do not see any entry in auth.log is there any way other than rebooting the machine to make sure I keep getting the entries in /var/log/auth.log I am not sure which service writes in this file. This is a Ubuntu 10.04 server.

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  • Install Glibc2 using Yum

    - by Nerrve
    I'm trying to install glibc2 version 2.11 that's needed for openoffice 3.4 https://issues.apache.org/ooo/show_bug.cgi?id=119393 but i can't seem to find the dependency with yum. I already have the following dependencies installed. glibc.i686 2.5-49.el5_5.7 installed glibc.x86_64 2.5-49.el5_5.7 installed glibc-common.x86_64 2.5-49.el5_5.7 installed glibc-devel.x86_64 2.5-49.el5_5.7 installed glibc-headers.x86_64 2.5-49.el5_5.7 installed libc-client.x86_64 2004g-2.2.1 installed and glibc.i686 2.5-81.el5_8.2 updates glibc.x86_64 2.5-81.el5_8.2 updates glibc-common.x86_64 2.5-81.el5_8.2 updates glibc-devel.i386 2.5-81.el5_8.2 updates glibc-devel.x86_64 2.5-81.el5_8.2 updates glibc-headers.x86_64 2.5-81.el5_8.2 updates glibc-utils.x86_64 2.5-81.el5_8.2 updates I ran the following to get the version but it shows something different [root@***** /]# ./lib64/libc.so.6 GNU C Library stable release version 2.5, by Roland McGrath et al. Can someone please help? Thanks! EDIT : I'm using CentOS 2.6.18-128.1.10.el5

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  • go back to original version of firefox in ubuntu from beta version

    - by Jack Coroman
    In ubuntu 9.04, I tried to upgrade from firefox 3.0 to 3.5, by installing some apt-get packages, and there is a problem! Now firefox calls itself "Namoroka" and the firefox logo is gone and replaced by a black square in the upper bar and it says it is a development beta version. I really don't like this version, how can I go back to the stable version of firefox? I tried apt-get remove firefox-3.5 and apt-get install firefox-3.0 and that did not work. How do I go back to the stable version of firefox?

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  • Reaver keeps reapeating the same PIN

    - by Umair Ayub
    I have been trying to Hack a WPA2 Wifi and so far I am stuck with it. Problem is that it keeps trying same pin over and over again. Here is the last REAVER command I entered. reaver -i mon0 -b 2C:AB:25:51:F1:CF -vv -c 1 -S -L -f It does this (only one PIN again and again) [+] Switching mon0 to channel 1 [+] Waiting for beacon from 2C:AB:25:51:F1:CF [+] Associated with 2C:AB:25:51:F1:CF (ESSID: PTCL-BB) [+] Trying pin 12345670 [+] Sending EAPOL START request [+] Received identity request [+] Sending identity response [!] WARNING: Receive timeout occurred [+] Sending WSC NACK [!] WPS transaction failed (code: 0x02), re-trying last pin [+] Trying pin 12345670 [+] Sending EAPOL START request [+] Received identity request [+] Sending identity response [+] Received identity request [+] Sending identity response ^C [+] Nothing done, nothing to save.

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  • mono 3.0.2 + xsp + lighttpd delivers empty page

    - by Nefal Warnets
    I needed MVC 4 (and basic .NET 4.5) support so I downloaded mono 3.0.2 and deployed it on an lighttpd 1.4.28 installation, together with xsp-2.10.2 (was the latest I could find). After going through the config tutorials I managed to get the fastcgi server to spawn, but all pages are served empty. even if I go to nonexistant urls or direct .aspx files I get an empty HTTP 200 response. The log file on Debug shows nothing suspicious. Here is the log: [2012-12-12 15:15:38Z] Debug Accepting an incoming connection. [2012-12-12 15:15:38Z] Debug Record received. (Type: BeginRequest, ID: 1, Length: 8) [2012-12-12 15:15:38Z] Debug Record received. (Type: Params, ID: 1, Length: 801) [2012-12-12 15:15:38Z] Debug Record received. (Type: Params, ID: 1, Length: 0) [2012-12-12 15:15:38Z] Debug Read parameter. (SERVER_SOFTWARE = lighttpd/1.4.28) [2012-12-12 15:15:38Z] Debug Read parameter. (SERVER_NAME = xxxx) [2012-12-12 15:15:38Z] Debug Read parameter. (GATEWAY_INTERFACE = CGI/1.1) [2012-12-12 15:15:38Z] Debug Read parameter. (SERVER_PORT = 80) [2012-12-12 15:15:38Z] Debug Read parameter. (SERVER_ADDR = xxxx) [2012-12-12 15:15:38Z] Debug Read parameter. (REMOTE_PORT = xxx) [2012-12-12 15:15:38Z] Debug Read parameter. (REMOTE_ADDR = xxxx) [2012-12-12 15:15:38Z] Debug Read parameter. (SCRIPT_NAME = /ViewPage1.aspx) [2012-12-12 15:15:38Z] Debug Read parameter. (PATH_INFO = ) [2012-12-12 15:15:38Z] Debug Read parameter. (SCRIPT_FILENAME = /data/htdocs/ViewPage1.aspx) [2012-12-12 15:15:38Z] Debug Read parameter. (DOCUMENT_ROOT = /data/htdocs) [2012-12-12 15:15:38Z] Debug Read parameter. (REQUEST_URI = /ViewPage1.aspx) [2012-12-12 15:15:38Z] Debug Read parameter. (QUERY_STRING = ) [2012-12-12 15:15:38Z] Debug Read parameter. (REQUEST_METHOD = GET) [2012-12-12 15:15:38Z] Debug Read parameter. (REDIRECT_STATUS = 200) [2012-12-12 15:15:38Z] Debug Read parameter. (SERVER_PROTOCOL = HTTP/1.1) [2012-12-12 15:15:38Z] Debug Read parameter. (HTTP_HOST = xxxxx) [2012-12-12 15:15:38Z] Debug Read parameter. (HTTP_CONNECTION = keep-alive) [2012-12-12 15:15:38Z] Debug Read parameter. (HTTP_CACHE_CONTROL = max-age=0) [2012-12-12 15:15:38Z] Debug Read parameter. (HTTP_USER_AGENT = Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11) [2012-12-12 15:15:38Z] Debug Read parameter. (HTTP_ACCEPT = text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8) [2012-12-12 15:15:38Z] Debug Read parameter. (HTTP_ACCEPT_ENCODING = gzip,deflate,sdch) [2012-12-12 15:15:38Z] Debug Read parameter. (HTTP_ACCEPT_LANGUAGE = en-US,en;q=0.8) [2012-12-12 15:15:38Z] Debug Read parameter. (HTTP_ACCEPT_CHARSET = ISO-8859-1,utf-8;q=0.7,*;q=0.3) [2012-12-12 15:15:38Z] Debug Record received. (Type: StandardInput, ID: 1, Length: 0) [2012-12-12 15:15:38Z] Debug Record sent. (Type: EndRequest, ID: 1, Length: 8) lighttpd config: server.modules += ( "mod_fastcgi" ) include "conf.d/mono.conf" $HTTP["host"] !~ "^vdn\." { $HTTP["url"] !~ "\.(jpg|gif|png|js|css|swf|ico|jpeg|mp4|flv|zip|7z|rar|psd|pdf|html|htm)$" { fastcgi.server += ( "" => (( "socket" => mono_shared_dir + "fastcgi-mono-server", "bin-path" => mono_fastcgi_server, "bin-environment" => ( "PATH" => mono_dir + "bin:/bin:/usr/bin:", "LD_LIBRARY_PATH" => mono_dir + "lib:", "MONO_SHARED_DIR" => mono_shared_dir, "MONO_FCGI_LOGLEVELS" => "Debug", "MONO_FCGI_LOGFILE" => mono_shared_dir + "fastcgi.log", "MONO_FCGI_ROOT" => mono_fcgi_root, "MONO_FCGI_APPLICATIONS" => mono_fcgi_applications ), "max-procs" => 1, "check-local" => "disable" )) ) } } the referenced mono.conf index-file.names += ( "index.aspx", "default.aspx" ) var.mono_dir = "/usr/" var.mono_shared_dir = "/tmp/" var.mono_fastcgi_server = mono_dir + "bin/" + "fastcgi-mono-server4" var.mono_fcgi_root = server.document-root var.mono_fcgi_applications = "/:." The document root for this server is /data/htdocs. The asp.net files reside there. lighttpd error logs show nothing. Every help is greatly appreciated!

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  • 'skb rides the rocket' on Xen VM

    - by Kye
    I've just set up Ubuntu 13.10 server as a VM on my Ubuntu/Xen server, and I'm getting these weird lines in my syslog. Nov 12 10:26:32 human kernel: [130782.315333] xennet: skb rides the rocket: 19 slots Nov 12 10:26:32 human kernel: [130782.362405] xennet: skb rides the rocket: 20 slots Nov 12 10:26:32 human kernel: [130782.408458] xennet: skb rides the rocket: 19 slots Nov 12 10:26:32 human kernel: [130782.490260] xennet: skb rides the rocket: 20 slots Nov 12 10:26:32 human kernel: [130782.541931] xennet: skb rides the rocket: 19 slots Nov 12 10:26:35 human kernel: [130785.226635] xennet: skb rides the rocket: 19 slots Nov 12 10:26:35 human kernel: [130785.261026] xennet: skb rides the rocket: 21 slots Nov 12 10:26:35 human kernel: [130785.469306] xennet: skb rides the rocket: 19 slots Nov 12 10:26:36 human kernel: [130786.552730] xennet: skb rides the rocket: 21 slots Nov 12 10:26:38 human kernel: [130788.212747] xennet: skb rides the rocket: 20 slots Nov 12 10:26:38 human kernel: [130788.257544] xennet: skb rides the rocket: 19 slots Nov 12 10:26:38 human kernel: [130788.903841] xennet: skb rides the rocket: 19 slots Unsure of what they mean, and Google has nothing meaningful. Any help is appreciated.

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  • A Letter for Your CEO About Social Marketing’s Future

    - by Mike Stiles
    We’ll leave it to you to decide if or how to sneak this in front of them. Dear Chief: This social marketing thing looks serious. It’s gone beyond having a Facebook page and putting our info and a few promotions on it. It’s seriously disrupting how we’ve always done marketing. And its implications reach well beyond marketing. My concern is that we stay positioned ahead of these changes and are prepared to embrace, adapt and capitalize on these new capabilities as opposed to spending valuable time and money trying to shoehorn social into “the way we’ve always done things.” I’m also concerned about what happens if our competition executes on this before we do. The days of being able to impose our ad messaging on the masses to great effect are numbered. The public now has the tech tools and ability to filter out things that are irrelevant to them. And frankly, spending ad dollars to reach unlikely prospects isn’t the most efficient path for us either. Today, our customers have to genuinely love what we do. That starts with a renewed, customer-centric focus on the quality and usability of our product. If their experience with it is bad, they now have very connected, loud voices that will testify against us. We can’t afford that. Next, their customer service experience, before and after the sale, has to be a pleasant surprise. That requires truly knowing our customers and listening to them. Lip service won’t cut it. We have to get and use as much data on the customer as possible, interact with them wherever they want to interact with us, and commit to impressing them. If we do, they’ll get out there and advertise for us. Since peer-to-peer recommendation is the most effective marketing, that’s money in the bank. Social marketing is about forming relationships, same as how individuals use social. We want them to know us, trust us, and get real value from knowing us. That requires honesty and transparency that before now might have been uncomfortable. I propose that if we clearly make everything we do about our customers’ wants and needs, we’ll have nothing to hide. It will solidify customer loyalty, retention, and thus, revenue. These things can’t happen without certain tools and structural changes in the organization. There are social cloud platforms that integrate social management into all of the necessary areas: CRM, customer service, sales, marketing automation, content marketing, ecommerce, etc. This is will give us a real-time, complete view of the customer so their every interaction with us is attentive, personalized, accurate, relevant, and satisfying. Without it, we’re just a collage of disjointed systems, each gathering data that informs only its own departmental silo. The customer is voluntarily giving us everything we need to know about them to win them over, but we have to start listening and putting the pieces together. There’s still time. Brands are coming to terms with this transition to the socially enabled enterprise, but so far they aren’t moving very fast. Like us, they’re dealing with long-entrenched technologies and processes. CMO’s and CIO’s have to form new partnerships. Content operations have to be initiated and properly staffed and funded. Various departments must be able to utilize interconnected big data. What will separate the winners from the losers? Well chief, that’s why I’m writing you. It’s in your hands. These initiatives won’t get the kind of priority and seriousness that inspire actual deadlines & action unless they come from your desk. You have to be the champion of customer centricity. You have to be our change agent. You have to be our innovator. Otherwise, it’s going to be business as usual, and that puts us in a very vulnerable place. Sincerely, Your Team @mikestilesPhoto: Gary Scott, stock.xchng

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  • PXE Boot Fedora 17 Error

    - by DrifterDave
    When trying to boot into the latest Fedora 17 cd via PXE, I am presented with the following error: PXE dracut: fatal: no or empty root= argument So, I added a root= line to my fedora menu entry (shown below), but receive the following error: dracut Warning: Unable to process initqueue Any assistance would be greatly appreciated. Fedora.menu LABEL 1 MENU LABEL fedora 17 (32-bit) KERNEL fedora/17/i386/vmlinuz0 APPEND method=nfs:192.168.1.101:/srv/install/fedora/17/i386/ lang=us keymap=us ip=dhcp ksdevice=eth1 noipv6 root=/dev/ram0 initrd=fedora/17/i386/initrd0.img ramdisk_size=10000 TEXT HELP Install Fedora 17 (32-bit) ENDTEXT

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  • Installed ASUS HD4670, now unable to install ANY Debian due to low memory corruption

    - by Alfabravo
    I have a desktop PC which initially had the Intel D946gzis mobo, its chipset as video controller, some RAM and so. There I installed Debian without a problem alongside WindowsXP. I've bought an ASUS HD 4670 video card, installed it on the PC and now the installed Debian does not work, while the Ubuntu live CD refuses to run no matter if I set acpi, apic on or off... it throws me some low memory corruption at position just like shown here. With normal configuration, Debian throws kernel panic (keyboard lights blinking). Anyone have faced this before? Ideas? Thanks!! (meanwhile, debian hides in a virtualbox :'( ) Edited: Tried Ubuntu 9.10 x64 (due to the fact i've a core2duo at 2GHz) and it throws a kernel-panic to me (flashing caps and num LEDs). On screen, can be read different lines with things like: ... [ 1.957161] [] rb_erase+0xd6/0x160 [ 1.957266] [] page_fault+0x25/0x30 Could it be something about this new video card having ddr3?

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  • tmux combine multiple commands to one vi-copy command or tmux command to yank a line

    - by MIkhail
    In tmux, i know we can chain multiple commands to a key by using \; See Here But in vi mode, i want one single key press to go to the beginning of the current line, begin-selection, go to end-of-line, copy-selection. In tmux.conf if i give the following bind-key -t vi-copy 's' start-of-line \; begin-selection \; end-of-line \; copy-selection \; It gives me this : 69: usage: bind-key [-cnr] [-t key-table] key command [arguments] error. Or is there any alternative way to yank the current line in single key.

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  • IPv6 address is not working in Ubuntu

    - by Alex Farber
    Telnet connection with echo service succeeds for localhost and 127.0.0.1 host names, but fails with ::1 host name: alex@u120432:~$ telnet localhost 7 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 123 123 ^] telnet q Connection closed. alex@u120432:~$ telnet ::1 7 Trying ::1... telnet: Unable to connect to remote host: Connection refused alex@u120432:~$ My own program trying to talk using IPv6 address fails as well. Why IPv6 address is rejected? OS: Ubuntu 12.04 32 bit.

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  • Error when Sending Emails

    - by dallasclark
    A client of mine keeps receiving the following email when sending mail but their emails are sent successfully. Your outgoing (SMTP) e-mail server has reported an internal error... The server responded: 451 qq read error (#4.3.0) In the mail log (/usr/local/psa/var/log/maillog) I receive the following error: /var/qmail/bin/relaylock[3152]: /var/qmail/bin/relaylock My SMTP Service is setup as followed, if this helps service smtp { socket_type = stream protocol = tcp wait = no disable = no user = root instances = UNLIMITED env = SMTPAUTH=1 server = /var/qmail/bin/tcp-env server_args = -Rt0 /var/qmail/bin/relaylock /var/qmail/bin/qmail-smtpd /var/qmail/bin/smtp_auth /var/qmail/bin/true /var/qmail/bin/cmd5checkpw /var/qmail/bin/true }

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  • Why don't I have write permission to my vmware virtual network device?

    - by Robert Martin
    I want to allow my VMWare machine to force the virtual network it's on into promiscuous mode so I can play around with honeyd. I received an error message that told me to go to http://vmware.com/info?id=161 to allow this behavior. Based on their advice, I did: $ groupadd promiscuous $ cat /etc/group | grep promiscuous promiscuous:x:1002:robert $ usermod -a -G promiscuous robert $ id robert uid=1000(robert) gid=1000(robert) groups=1000(robert),....,1002(promiscuous) $ chgrp newgroup /dev/vmnet8 $ chmod g+rw /dev/vmnet8 $ ls -l /dev/vmnet8 crw-rw---- 1 root promiscuous 119, 8 2012-03-29 10:29 /dev/vmnet8 Looks like I gave RW permission to the promiscuous group, and added myself. Except that VMWare still gives me an error message that says I cannot enter promiscuous mode. To try out the group thing, I tried: $ echo "1" >/dev/vmnet8 bash: /dev/vmnet8: Permission denied That really surprised me: It makes me think that I still haven't properly given myself the correct permissions... What am I missing?

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  • How to permanently add wireless interfaces with iw

    - by walli
    How can I permanently add virtual wireless interfaces to my network configuration with iw? I created the following interfaces: iw phy phy0 interface add vwlan0 type station iw phy phy0 interface add vwlan1 type __ap The first is configured as a wifi client connecting to an existing network (wpa_supplicant) The second is configured as wireless hotspot (hostapd + dnsmasq) The setup works, but now I can't quite figure out what the best strategy is to save this configuration permanently. Have made an init script for wpa_supplicant Have made an init script for the hotspot Virtual adaptor network settings set in /etc/network/interfaces But all this depends on the wireless interfaces being created. What would be the best way to make sure these interfaces are created before the network is set up and the services are run? As a bonus, since this wireless interface is a usb device, would it be possible to have the interfaces created (and the services started) when the interface is hotplugged? I know you can execute code after a network interface is up, but the wlan0 interface that is hotplugged should never be up. Operating system is raspbian

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  • how to rollback/undo yum update on fedora after messing the fedora versions

    - by misteryes
    I want to install texlive on my fedora 16 laptop with the following procedure: # yum remove tex-* texlive-* # cat > /etc/yum.repos.d/texlive.repo <<EOF [texlive] name=texlive baseurl=http://jnovy.fedorapeople.org/texlive/2012/packages.f17/ enabled=1 gpgcheck=0 EOF # yum update; # yum install texlive after yum update, I notice that my laptop is fedora 16, while I used 2012/packages.fc17/ so I modify /etc/yum.repos.d/texlive.repo to use 2011/packages.fc16 and do yum update again however, there are many errors [root@kitty esolve]# yum update Loaded plugins: auto-update-debuginfo, langpacks, presto, refresh-packagekit http://repos.fedorapeople.org/repos/leigh123linux/cinnamon/fedora-16/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found : http://repos.fedorapeople.org/repos/leigh123linux/cinnamon/fedora-16/x86_64/repodata/repomd.xml Trying other mirror. Setting up Update Process Resolving Dependencies --> Running transaction check ---> Package dvipng.x86_64 0:1.14-1.fc15 will be obsoleted ---> Package kpathsea.x86_64 0:2007-66.fc16 will be obsoleted --> Processing Dependency: libkpathsea.so.4()(64bit) for package: evince-dvi-3.2.1-2.fc16.x86_64 ---> Package mkvtoolnix.x86_64 0:5.8.0-1 will be updated ---> Package mkvtoolnix.x86_64 0:6.3.0-1 will be an update ---> Package nautilus-dropbox.x86_64 0:1.4.0-1.fc10 will be updated ---> Package nautilus-dropbox.x86_64 0:1.6.0-1.fc10 will be an update ---> Package texlive-dvipng-bin.x86_64 2:svn26509.0-19.20130317_r29408.fc17 will be obsoleting --> Processing Dependency: texlive-kpathsea-lib = 2:2012-19.20130317_r29408.fc17 for package: 2:texlive-dvipng-bin-svn26509.0-19.20130317_r29408.fc17.x86_64 --> Processing Dependency: texlive-base for package: 2:texlive-dvipng-bin-svn26509.0-19.20130317_r29408.fc17.x86_64 --> Processing Dependency: tex-dvipng for package: 2:texlive-dvipng-bin-svn26509.0-19.20130317_r29408.fc17.x86_64 --> Processing Dependency: libpng15.so.15()(64bit) for package: 2:texlive-dvipng-bin-svn26509.0-19.20130317_r29408.fc17.x86_64 --> Processing Dependency: libkpathsea.so.6()(64bit) for package: 2:texlive-dvipng-bin-svn26509.0-19.20130317_r29408.fc17.x86_64 ---> Package texlive-kpathsea.noarch 2:svn28792.0-19.fc17 will be obsoleting --> Processing Dependency: texlive-kpathsea-bin for package: 2:texlive-kpathsea-svn28792.0-19.fc17.noarch --> Running transaction check ---> Package kpathsea.x86_64 0:2007-66.fc16 will be obsoleted --> Processing Dependency: libkpathsea.so.4()(64bit) for package: evince-dvi-3.2.1-2.fc16.x86_64 ---> Package texlive-base.noarch 2:2012-19.20130317_r29408.fc17 will be installed ---> Package texlive-dvipng.noarch 2:svn26689.1.14-19.fc17 will be installed ---> Package texlive-dvipng-bin.x86_64 2:svn26509.0-19.20130317_r29408.fc17 will be obsoleting --> Processing Dependency: libpng15.so.15()(64bit) for package: 2:texlive-dvipng-bin-svn26509.0-19.20130317_r29408.fc17.x86_64 ---> Package texlive-kpathsea-bin.x86_64 2:svn27347.0-19.20130317_r29408.fc17 will be installed ---> Package texlive-kpathsea-lib.x86_64 2:2012-19.20130317_r29408.fc17 will be installed --> Finished Dependency Resolution Error: Package: evince-dvi-3.2.1-2.fc16.x86_64 (@fedora) Requires: libkpathsea.so.4()(64bit) Removing: kpathsea-2007-66.fc16.x86_64 (@so-updates) libkpathsea.so.4()(64bit) Obsoleted By: 2:texlive-kpathsea-svn28792.0-19.fc17.noarch (texlive) Not found Error: Package: 2:texlive-dvipng-bin-svn26509.0-19.20130317_r29408.fc17.x86_64 (texlive) Requires: libpng15.so.15()(64bit) You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest and when I do yum install texlive, it simply tries to install the f17 version, which failed. what Can I do to install f16 version? how can I undo yum update with 2012/packages.f17/ I tried yum history, and for today's history, I only have Loaded plugins: auto-update-debuginfo, langpacks, presto, refresh-packagekit ID | Login user | Date and time | Action(s) | Altered ------------------------------------------------------------------------------- 124 | esolve ... <esolve> | 2013-09-12 18:35 | Erase | 24 123 | root <root> | 2013-08-23 11:08 | Update | 1 122 | root <root> | 2013-08-21 14:13 | Update | 1 < 121 | esolve ... <esolve> | 2013-05-31 15:36 | Install | 1 > 120 | root <root> | 2013-05-29 15:13 | Install | 1 < 119 | root <root> | 2013-04-18 13:13 | Update | 1 >< which seems not related to yum update the history results: 1003 yum update 1004 vim 1005 vim /etc/yum.repos.d/texlive.repo 1006 yum update 1007 yum install texlive 1008 vim /etc/yum.repos.d/texlive.repo 1009 clear 1010 yum history 1011 yum history list 1012 vim 1013 vim /etc/yum.repos.d/texlive.repo 1014 yum history list 1015 history also I tried yum history undo 124 but it failed! [root@kitty esolve]# yum history undo 124 Loaded plugins: auto-update-debuginfo, langpacks, presto, refresh-packagekit http://repos.fedorapeople.org/repos/leigh123linux/cinnamon/fedora-16/x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found : http://repos.fedorapeople.org/repos/leigh123linux/cinnamon/fedora-16/x86_64/repodata/repomd.xml Trying other mirror. Undoing transaction 124, from Thu Sep 12 18:35:31 2013 Erase R-2.14.1-1.fc16.x86_64 ? Erase R-core-2.14.1-1.fc16.x86_64 ? Erase R-devel-2.14.1-1.fc16.x86_64 ? Erase a2ps-4.14-12.fc15.x86_64 ? Erase docbook-utils-pdf-0.6.14-29.fc16.noarch ? Erase html2ps-1.0-0.7.b7.fc15.noarch ? Erase jadetex-3.13-10.fc15.noarch ? Erase kile-2.1.1-1.fc16.x86_64 ? Erase linuxdoc-tools-0.9.66-9.fc15.x86_64 ? Erase tetex-dvipost-1.1-12.fc15.x86_64 ? Erase tex-cm-lgc-0.5-18.fc15.noarch ? Erase tex-preview-11.86-6.fc16.noarch ? Erase texinfo-tex-4.13a-15.fc15.x86_64 ? Erase texlive-2007-66.fc16.x86_64 ? Erase texlive-dvips-2007-66.fc16.x86_64 ? Erase texlive-latex-2007-66.fc16.x86_64 ? Erase texlive-texmf-2007-40.fc16.noarch ? Erase texlive-texmf-dvips-2007-40.fc16.noarch ? Erase texlive-texmf-fonts-2007-40.fc16.noarch ? Erase texlive-texmf-latex-2007-40.fc16.noarch ? Erase texlive-utils-2007-66.fc16.x86_64 ? Erase texmaker-1:3.2.2-1.fc16.x86_64 ? Erase texmf-RR-Inria-4.11-inria.0.noarch ? Erase xdvik-22.84.14-9.fc15.x86_64 ? Error: No package(s) available to install

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  • Unable to access VLAN host from VLAN interface in CentOS

    - by Amrit
    I am playing with VLAN (Virtual LAN) configuration on CentOS 6.4. I have 2 interfaces, eth0 and eth1. I have configured 2 VLAN interfaces eth0.20 and eth0.30 as #file: ifcfg-eth0.20 #------------- VLAN=yes DEVICE=eth0.20 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=static IPADDR=192.168.20.1 GATEWAY=192.168.20.1 NETMASK=255.255.255.0 USERCTL=no #file: ifcfg-eth0.30 #------------- VLAN=yes DEVICE=eth0.30 TYPE=Ethernet ONBOOT=yes NM_CONTROLLED=no BOOTPROTO=static IPADDR=192.168.30.1 GATEWAY=192.168.30.1 NETMASK=255.255.255.0 USERCTL=no Then connected a desktop to interface eth0 port using LAN cable and assigned 192.168.30.2/24 IP. When I try to ping 192.168.30.1 from 192.168.30.2 machine, It shows destination host unreachable. I am also not able to ping 192.168.130.2 from 192.168.30.1. However ping -I eth0 192.168.30.2 works fine. Any pointers?

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  • Debian and Multipath IO problem

    - by tearman
    Basically the situation is, I have a box running Debian, the box internally has an Intel SCSI RAID controller which is controlling 2 hard drives in RAID1 mode which is where the OS is installed. Further, I have a QLogic fiber channel adapter that connects the unit to a Fiber Channel SAN. My process of installation is I'll install Debian to the local drives, and leave the QLogic firmware out of it for the time being. Then once I get the unit online, I'll install the firmware drivers. This flops my internal drives from /dev/sda to /dev/sdc, which is a bit annoying, but recoverable. Probably should address these by UUID anyways. Once I get back online, I have to install multipath-tools (the framework is a multipath framework). However, once I reboot the machine again, it fails on boot after discovering multipath targets, saying my local drives are busy and cannot be mounted to /root. Any help in what may be the problem here? Or at least how to disable multipath until after the unit boots and then ignores the internal drives?

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  • Weird scp behavior

    - by bryan1967
    I am trying to scp a file but it returns immediately with the DATE and not file is copied: [cosmo] Downloads > scp V17530-01_1of2.zip bryan@elphaba:Downloads bryan@elphaba's password: Sat Apr 10 13:35:41 PDT 2010 I have never seen this before. I have confirmed that I have the sshd running on the target system and that the firewall is allowing 22/tcp. Any help on what is going on would be very much appreciated. Thanks, Bryan

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