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• Is Innovation Dead?

  - by wulfers

  My question is has innovation died?  For large businesses that do not have a vibrant, and fearless leadership (see Apple under Steve jobs), I think is has.  If you look at the organizational charts for many of the large corporate megaliths you will see a plethora of middle managers who are so risk averse that innovation (any change involves risk) is choked off since there are no innovation champions in the middle layers.  And innovation driven top down can only happen when you have a visionary in the top ranks, and that is also very rare.So where is actual innovation happening, at the bottom layer, the people who live in the trenches…   The people who live for a challenge. So how can big business leverage this innovation layer?  Remove the middle management layer.   Provide an innovation champion who has an R&D budget and is tasked with working with the bottom layer of a company, the engineers, developers  and business analysts that live on the edge (Where the corporate tires meet the road). Here are two innovation failures I will tell you about, and both have been impacted by a company so risk averse it is starting to fail in its primary business ventures: This company initiated an innovation process several years ago.  The process was driven companywide with team managers being the central points of collection of innovative ideas.  These managers were given no budget to do anything with these ideas.  There was no process or incentive for these managers to drive it about their team.  This lasted close to a year and the innovation program slowly slipped into oblivion…. A second example:  This same company failed an attempt to market a consumer product in a line where there was already a major market leader.  This product was under development for several years and needed to provide some major device differentiation form the current market leader.  This same company had a large Lead Technologist community made up of real innovators in all areas of technology.  Did this same company leverage the skills and experience of this internal community,   NO!!! So to wrap this up, if large companies really want to survive, then they need to start acting like a small company.  Support those innovators and risk takers!  Reward them by implementing their innovative ideas.  Champion (from the top down) innovation (found at the bottom) in your companies.  Remember if you stand still you are really falling behind.Do it now!  Take a risk!

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• WiFi on Ubuntu 12.04 custom: downloading unbearably slow

  - by Mark

  iwconfig reports 11 Mbps, yet I've seen as low as <1 KBps. This is the latest in my laundry list of Ubuntu problems in a dual-boot machine (cyberpowerpc custom, intel i7-3820, nvidia gtx 570). I received it two days ago, Windows 7 running fine, still having problems with Ubuntu. The browsing is intermittent but unacceptable. e.g. I could get to this site last night but I couldn't post this question. The downloading is unbearably slow, I can't download anything or install any packages because the speed is so slow. e.g. I am trying to install vim which is inexplicably missing from my 12.04 install (add another one to the problems list) and my download speed reported in the terminal was 241 B/s. Yes, bytes. iwconfig reports 11 Mbps, which further adds to the confusion. User@ubuntu:~$ iwconfig lo no wireless extensions. wlan0 IEEE 802.11bgn ESSID:"linksys" Mode:Managed Frequency:2.437 GHz Access Point: 00:18:39:76:2C:A1 Bit Rate=11 Mb/s Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=36/70 Signal level=-74 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:54 Invalid misc:18 Missed beacon:0 eth0 no wireless extensions. Any ideas? I see this is a problem a lot of people, but none of the on line solutions have worked for me so far. e.g. one site recommends editing the ath9k.conf file in /etc/modprobe.d, yet this file isn't even in the folder: User@ubuntu:/$ cd etc/modprobe.d User@ubuntu:/etc/modprobe.d$ ls alsa-base.conf blacklist-oss.conf blacklist-ath_pci.conf blacklist-rare-network.conf blacklist.conf blacklist-watchdog.conf blacklist-firewire.conf dkms.conf blacklist-framebuffer.conf nvidia-current_hybrid.conf blacklist-modem.conf nvidia-graphics-drivers.conf I think the nvidia gpu might be mucking things up. I had the "blinking cursor" problem when installing in the first place, and then I had the monitor out of range problem as well. I have my faithful Asus laptop, which is running Ubuntu 12.04 just fine. The only difference is executing host -t SOA local in the terminal gives User@ubuntu:~$ host -t SOA local local has SOA record local. nobody.localhost. 42 86400 43200 604800 10800 in my new machine, and the command reports Host local. not found in the laptop. Help would be most welcome, as I am in danger of reverting back to Windows. I'm seriously considering it. Sorry for the length, trying to show my effort in resolving the issue and include terminal snippets that might be helpful.

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• What's a good way to get an IT internship? [closed]

  - by user1419715

  I'm a second year CS student who's worked really hard to build and expand my skills. I've spent the past week now trying to find a place to volunteer (i.e. work for FREE) so I can get a little bit of in-the-door experience with web development. I have a portfolio with several decent projects, a handful of languages and other hard/soft skills that employers constantly say they're clamoring for. I can't even get people to take my calls. This is me offering to work for them for FREE, remember. I'm in a reputable program at a respected school, get decent grades and...yeah, I've worked really hard to be presentable. On the rare occassions I actually get to speak to somebody at a design firm they hedge and do everything they can to get me off the phone. Nobody's ever expressed even the slightest interest in taking me on. The answer to the experience problem is supposed to be "you need to spend a year or two building up a big portfolio of projects on your own" so that employers will be impressed. I've done that. Websites, standalone apps, etc.. Nobody will even look at my resume, though. Question: Why does there seem to be so little interest in taking on upaid interns in the world of IT? Update: Sorry you all think I'm too aggressive or angry. It wasn't my intent to be a jerk to people while asking them for their opinions. That said, how would you feel if employer after employer turned you down cold when you offered yourself to them without asking for remuneration? One can't even get an unpaid job in this economy now, it seems. How am I going about my search? I find web firms in my area and contact them via email with a brief sales pitch of myself and a resume attached. Then a couple of days later I follow up with a phone contact. Nobody--anywhere--is advertising for interns of any kind. If there were I'm sure there'd be about 500 resumes per position, even unpaid. I've had good experiences in the past with cold-calling firms for actual paid jobs in other industries (hiring is a pain in the ass process and a call like this can show initiative while reducing a busy employer's need to do all the hiring overhead work), so I thought volunteering would work at least as well. My skills are pretty good for a CS student and include the usual suspects: HTML/CSS/Javascript, Python, Java, C, C#/.Net etc etc. I made a point on my resume to tie each ability claim to a project as well. Oh, and regarding the "working for free still costs the employer money" argument: that's an excellent point I hadn't though of. But it means...what? I have to pay the employer for the privilege of working there now?

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• The term "interface" in C++

  - by Flexo

  Java makes a clear distinction between class and interface. (I believe C# does also, but I have no experience with it). When writing C++ however there is no language enforced distinction between class and interface. Consequently I've always viewed interface as a workaround for the lack of multiple inheritance in Java. Making such a distinction feels arbitrary and meaningless in C++. I've always tended to go with the "write things in the most obvious way" approach, so if in C++ I've got what might be called an interface in Java, e.g.: class Foo { public: virtual void doStuff() = 0; ~Foo() = 0; }; and I then decided that most implementers of Foo wanted to share some common functionality I would probably write: class Foo { public: virtual void doStuff() = 0; ~Foo() {} protected: // If it needs this to do its thing: int internalHelperThing(int); // Or if it doesn't need the this pointer: static int someOtherHelper(int); }; Which then makes this not an interface in the Java sense anymore. Instead C++ has two important concepts, related to the same underlying inheritance problem: virtual inhertiance Classes with no member variables can occupy no extra space when used as a base "Base class subobjects may have zero size" Reference Of those I try to avoid #1 wherever possible - it's rare to encounter a scenario where that genuinely is the "cleanest" design. #2 is however a subtle, but important difference between my understanding of the term "interface" and the C++ language features. As a result of this I currently (almost) never refer to things as "interfaces" in C++ and talk in terms of base classes and their sizes. I would say that in the context of C++ "interface" is a misnomer. It has come to my attention though that not many people make such a distinction. Do I stand to lose anything by allowing (e.g. protected) non-virtual functions to exist within an "interface" in C++? (My feeling is the exactly the opposite - a more natural location for shared code) Is the term "interface" meaningful in C++ - does it imply only pure virtual or would it be fair to call C++ classes with no member variables an interface still?

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• reverse proxy on PFsense, squid or otherwise

  - by Mustafa Ismail Mustafa

  I've been trying to get this to work for days now and its not working. After bashing my head against the desk enough times, I've decided to man up and ask. I'm desperately trying to set up a reverse proxy on the pfsense box itself. One because its a pretty powerful box and its not being utilized to the maximum at all and two because I don't have any spare machines to setup squid (or any other reverse proxy [capable]) server on. So, on pfsense, everytime I set up rules (on ServicesProxy ServerGeneral) as so: acl surveillance dstdomain surveillance.myweb.local; acl camera dstdomain camera.myweb.local; http_access allow surveillance AND camera (ad nauseum) when I check the services, squid stops and refuses to restart until I remove them pesky acls that are supposed to make my life easier! What am I doing wrong? How can I get it to work? Is there another way/package I can use? Thanks

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• Installing MySQL on Ubuntu 12 fails on a clean installation

  - by Keenora Fluffball

  I do have the problem, that even if I uninstall mysql completely and do a restart, it still doesn't install mysql. This is the error I get: Paketlisten werden gelesen... Fertig Abhängigkeitsbaum wird aufgebaut Statusinformationen werden eingelesen... Fertig Die folgenden zusätzlichen Pakete werden installiert: libdbd-mysql-perl libmysqlclient18 mysql-client-5.5 mysql-client-core-5.5 mysql-common mysql-server-5.5 mysql-server-core-5.5 Vorgeschlagene Pakete: tinyca mailx Die folgenden NEUEN Pakete werden installiert: libdbd-mysql-perl libmysqlclient18 mysql-client-5.5 mysql-client-core-5.5 mysql-common mysql-server mysql-server-5.5 mysql-server-core-5.5 0 aktualisiert, 8 neu installiert, 0 zu entfernen und 0 nicht aktualisiert. Es müssen 26,2 MB an Archiven heruntergeladen werden. Nach dieser Operation werden 94,2 MB Plattenplatz zusätzlich benutzt. Möchten Sie fortfahren [J/n]? J Hole:1 http://de.archive.ubuntu.com/ubuntu/ quantal-updates/main mysql-common all 5.5.28-0ubuntu0.12.10.1 [13,4 kB] Hole:2 http://de.archive.ubuntu.com/ubuntu/ quantal-updates/main libmysqlclient18 amd64 5.5.28-0ubuntu0.12.10.1 [949 kB] Hole:3 http://de.archive.ubuntu.com/ubuntu/ quantal/main libdbd-mysql-perl amd64 4.021-1 [97,7 kB] Hole:4 http://de.archive.ubuntu.com/ubuntu/ quantal-updates/main mysql-client-core-5.5 amd64 5.5.28-0ubuntu0.12.10.1 [1.941 kB] Hole:5 http://de.archive.ubuntu.com/ubuntu/ quantal-updates/main mysql-client-5.5 amd64 5.5.28-0ubuntu0.12.10.1 [8.332 kB] Hole:6 http://de.archive.ubuntu.com/ubuntu/ quantal-updates/main mysql-server-core-5.5 amd64 5.5.28-0ubuntu0.12.10.1 [5.983 kB] Hole:7 http://de.archive.ubuntu.com/ubuntu/ quantal-updates/main mysql-server-5.5 amd64 5.5.28-0ubuntu0.12.10.1 [8.842 kB] Hole:8 http://de.archive.ubuntu.com/ubuntu/ quantal-updates/main mysql-server all 5.5.28-0ubuntu0.12.10.1 [11,6 kB] Es wurden 26,2 MB in 1 min 5 s geholt (399 kB/s) Vorkonfiguration der Pakete ... Vormals nicht ausgewähltes Paket mysql-common wird gewählt. (Lese Datenbank ... 68073 Dateien und Verzeichnisse sind derzeit installiert.) Entpacken von mysql-common (aus .../mysql-common_5.5.28-0ubuntu0.12.10.1_all.deb) ... Vormals nicht ausgewähltes Paket libmysqlclient18:amd64 wird gewählt. Entpacken von libmysqlclient18:amd64 (aus .../libmysqlclient18_5.5.28-0ubuntu0.12.10.1_amd64.deb) ... Vormals nicht ausgewähltes Paket libdbd-mysql-perl wird gewählt. Entpacken von libdbd-mysql-perl (aus .../libdbd-mysql-perl_4.021-1_amd64.deb) ... Vormals nicht ausgewähltes Paket mysql-client-core-5.5 wird gewählt. Entpacken von mysql-client-core-5.5 (aus .../mysql-client-core-5.5_5.5.28-0ubuntu0.12.10.1_amd64.deb) ... Vormals nicht ausgewähltes Paket mysql-client-5.5 wird gewählt. Entpacken von mysql-client-5.5 (aus .../mysql-client-5.5_5.5.28-0ubuntu0.12.10.1_amd64.deb) ... Vormals nicht ausgewähltes Paket mysql-server-core-5.5 wird gewählt. Entpacken von mysql-server-core-5.5 (aus .../mysql-server-core-5.5_5.5.28-0ubuntu0.12.10.1_amd64.deb) ... Trigger für man-db werden verarbeitet ... mysql-common (5.5.28-0ubuntu0.12.10.1) wird eingerichtet ... Vormals nicht ausgewähltes Paket mysql-server-5.5 wird gewählt. (Lese Datenbank ... 68251 Dateien und Verzeichnisse sind derzeit installiert.) Entpacken von mysql-server-5.5 (aus .../mysql-server-5.5_5.5.28-0ubuntu0.12.10.1_amd64.deb) ... Vormals nicht ausgewähltes Paket mysql-server wird gewählt. Entpacken von mysql-server (aus .../mysql-server_5.5.28-0ubuntu0.12.10.1_all.deb) ... Trigger für man-db werden verarbeitet ... Trigger für ureadahead werden verarbeitet ... libmysqlclient18:amd64 (5.5.28-0ubuntu0.12.10.1) wird eingerichtet ... libdbd-mysql-perl (4.021-1) wird eingerichtet ... mysql-client-core-5.5 (5.5.28-0ubuntu0.12.10.1) wird eingerichtet ... mysql-client-5.5 (5.5.28-0ubuntu0.12.10.1) wird eingerichtet ... mysql-server-core-5.5 (5.5.28-0ubuntu0.12.10.1) wird eingerichtet ... mysql-server-5.5 (5.5.28-0ubuntu0.12.10.1) wird eingerichtet ... AppArmor parser error for /etc/apparmor.d/usr.sbin.mysqld in /etc/apparmor.d/usr.sbin.mysqld at line 9: >>abstractions/mysql<< konnte nicht ge?ffnet werden start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: Fehler beim Bearbeiten von mysql-server-5.5 (--configure): Unterprozess installiertes post-installation-Skript gab den Fehlerwert 1 zurück dpkg: Abhängigkeitsprobleme verhindern Konfiguration von mysql-server: mysql-server hängt ab von mysql-server-5.5; aber: Paket mysql-server-5.5 ist noch nicht konfiguriert. dpkg: Fehler beim Bearbeiten von mysql-server (--configure): Abhängigkeitsprobleme - verbleibt unkonfiguriert Trigger für libc-bin werden verarbeitet ... ldconfig deferred processing now taking place Es wurde kein Apport-Bericht verfasst, da die Fehlermeldung darauf hindeutet, dass dies lediglich ein Folgefehler eines vorherigen Problems ist. Fehler traten auf beim Bearbeiten von: mysql-server-5.5 mysql-server E: Sub-process /usr/bin/dpkg returned an error code (1) Do you have any clue, whats going on here?

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• Wireless networking on Gnome on Ubuntu 9 / 10

  - by WaveyDavey

  So here's my problem: I have some netbooks (ASUS eee, and ACER Aspire Ones) that I've been tasked to set up as kiosk machines, locked up tight for normal users. I am a command-line, server man, so this gnome malarkey is all a bit new to me. I found a lovely 9.04 kiosk livecd that installs and runs exactly as I want it to, but I can't get the wireless working. So I dropped on a full 10.4 distro, and wireless works straight out of the box (so hardware is good) - all I needed to do was right-click on the network connection icon, enter my SSID and password (WPA/WPA2) and away it went, perfect. Further investigation on 10.4 distro shows that /etc/networking/interfaces is virtually empty (just auto lo iface lo inet loopback in it), even after I have set up the wireless thru the gnome taskbar applet (is that the right word?). So where does gnome / ubuntu store the network settings to bring the blasted wireless connection up, and what do I need to do on the kiosk version to get wireless running?

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• Linux equivalent to Mac OS X's fs_usage

  - by Khai

  Is there a Linux equivalent to the Mac OS X command fs_usage? According to the man page it does the following: "report system calls and page faults related to filesystem activity in real-time". I suppose one option would be to use strace and filter the data, however the fs_usage command allows all the processes running on the system to be "traced" at the same time. Here's an example output: 03:44:25 stat64 erences/ByHost/org.mozilla.firefox.69AC0B48-F675-5045-B873-A28B119C33E7.plist 0.000029 firefox 03:44:25 stat64 /Users/**********/Library/Preferences 0.000011 firefox 03:44:25 statfs64 /Users/**********/Library/Preferences 0.000004 firefox 03:44:25 open /Users/**********/Library/Preferences/org.mozilla.firefox.plist.lockfile 0.000090 firefox 03:44:25 stat64 /Users/**********/Library/Preferences/org.mozilla.firefox.plist 0.000004 firefox 03:44:25 stat64 /Users/**********/Library/Preferences 0.000002 firefox 03:44:25 open /Users/**********/Library/Preferences/org.mozilla.firefox.plist.vjLkANe 0.000100 firefox Any ideas?

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• Most basic, low power home surveillance system

  - by cbp

  I am thinking of setting up a simple but effective surveillance system for my house that is: Very low powered (preferably no PCs left running out of stand-by mode) Cheap. When motion (or sound) is detected, I would like it to: Send an email/phone alert to me Record and upload video to the web (in case they steal the camera) So I imagine a system where I leave a netbook PC in stand-by mode and have it woken up by a motion detector. This initiates software to send alerts and periodically upload recorded video to the web. The software part is easy for me, but I'm not really a gadget-man so I'd like some advice on using a motion sensor of some sort to wake up the PC. Does anyone have some good advice? I know there are a couple of questions dealing with this topic already (see here: http://superuser.com/questions/3054/looking-for-a-moderately-priced-home-surveillance-setup, and here: http://superuser.com/questions/2929/can-you-suggest-a-great-home-security-setup-anti-burglars-e-t-c) - I am seeking more specific information with this question.

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• How to install nginx and install the configuration files too

  - by Burning the Codeigniter

  I've just completely uninstalled nginx 1.0.6 from my server (Ubuntu 11.04) using apt-get remove nginx rm -rf /etc/nginx/ rm -rf /usr/sbin/nginx rm /usr/share/man/man1/nginx.1.gz apt-get remove nginx* Now I want to install it again, however when starting nginx, I get errors such as: Restarting nginx: nginx: [emerg] open() "/etc/nginx/nginx.conf" failed (2: No such file or directory) Then I placed my own conf file, then I get a new error: Restarting nginx: nginx: [emerg] open() "/etc/nginx/mime.types" failed (2: No such file or directory) in /etc/nginx/nginx.conf:12 Now it seems that apt-get install nginx doesn't install it completely, I cleared the apt-get cache, doesn't seem to help. How can I get a full installation of nginx using apt-get?

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• How do I configure an interface to have *both* a DHCP address and a static address in Ubuntu?

  - by Paul Hoffman

  In a lab setup, I want eth0 on a Ubuntu server box to get a DHCP address for talking to the outside world, and I also want to assign it a static 10.x.y.z address for talking to other boxes on the local network that have 10.x.y.z addresses. I want to do this by editing /etc/network/interfaces. The man page for /etc/network/interfaces is modeled after "here's a bunch of examples, I hope you can figure out the actual rules on your own". I don't see a way to give one interface two addresses using two different methods (static and dhcp), and initial fumbling didn't produce useful results.

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• Immutable hard links on ext3/4?

  - by shovas

  In my research on file versioning at the fs level, snapshotting, and related ideas, I took a look at hard-links and exactly what they are and how they behave. Using rsync you can get a pretty slick poor man's snapshotting system up and running on file systems that don't natively support it. But, can you get immutable hard links on ext3/4 or any other file systems for that matter? My definition for immutable hard link is: A hard link which, when changed on one location, becomes a regular copy and no longer a hard link. I would like this because it would enable snapshotting use of the source data to link against instead of a copy of the data (in the case of the rsync snapshotting technique). I have gigabytes of data that can't be duplicated due to space restrictions but I have enough room if I can intelligently snapshot individual changed files with the rest linked to the source not a copy. Given all that, is there some other technique, feature or technology I'm really looking for?

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• Unable to use pbcopy while in tmux session

  - by user62139

  Running tmux 1.4 installed from ports on snow-leopard I am unable to use the built in OSX pbcopy command. Outside of tmux: > echo "abc" | pbcopy > echo pbpaste # or using ^v abc But inside of tmux: > echo "123" | pbcopy > echo pbpaste abc I've scoured the man page but can't find any options that might relate to this behaivor. I also can't understand why tmux would mess with shell redirection. Anybody have any clues?

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• How to use nsupdate to create NAPTR record

  - by Jon Skarpeteig

  What's a working example for creating a NAPTR record using nsupdate against Bind9? man nsupdate sais: update add {domain-name} {ttl} [class] {type} {data...} Adds a new resource record with the specified ttl, class and data. But I can't seem to find the correct format for NAPTR My attempt: echo -e 'update add enum.example.com 60 IN NAPTR 1.1.1.1.1."u"."E2U+sip"."!^.*[email protected]!" .'"\nsend"|nsupdate results in: invalid rdata format: not a valid number syntax error

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• "setpci: command not found" in CentOS

  - by spoon16

  I'm trying to configure my Mac Mini running CentOS 5.5 to start automatically when power is restored after a power loss. I understand the following command has to be executed: setpci -s 0:1f.0 0xa4.b=0 When I run that command on my machine though I get bash: setpci: command not found. Is there a package I need to install via yum or something? I'm not seeing a clear answer via Google and I looked at the man page for setpci and it doesn't mention anything. Also, does this command need to be run every time the machine starts or just once?

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• OpenIndiana (illumos): vmxnet3 interface lost on reboot

  - by protomouse

  I want my VMware vmxnet3 interface to be brought up with DHCP on boot. I can manually configure the NIC with: # ifconfig vmxnet3s0 plumb # ipadm create-addr -T dhcp vmxnet3s0/v4dhcp But after creating /etc/dhcp.vmxnet3s0 and rebooting, the interface is down and the logs show: Aug 13 09:34:15 neumann vmxnet3s: [ID 654879 kern.notice] vmxnet3s:0: getcapab(0x200000) -> no Aug 13 09:34:15 neumann vmxnet3s: [ID 715698 kern.notice] vmxnet3s:0: stop() Aug 13 09:34:17 neumann vmxnet3s: [ID 654879 kern.notice] vmxnet3s:0: getcapab(0x200000) -> no Aug 13 09:34:17 neumann vmxnet3s: [ID 920500 kern.notice] vmxnet3s:0: start() Aug 13 09:34:17 neumann vmxnet3s: [ID 778983 kern.notice] vmxnet3s:0: getprop(TxRingSize) -> 256 Aug 13 09:34:17 neumann vmxnet3s: [ID 778983 kern.notice] vmxnet3s:0: getprop(RxRingSize) -> 256 Aug 13 09:34:17 neumann vmxnet3s: [ID 778983 kern.notice] vmxnet3s:0: getprop(RxBufPoolLimit) -> 512 Aug 13 09:34:17 neumann nwamd[491]: [ID 605049 daemon.error] 1: nwamd_set_unset_link_properties: dladm_set_linkprop failed: operation not supported Aug 13 09:34:17 neumann vmxnet3s: [ID 654879 kern.notice] vmxnet3s:0: getcapab(0x20000) -> no Aug 13 09:34:17 neumann nwamd[491]: [ID 751932 daemon.error] 1: nwamd_down_interface: ipadm_delete_addr failed on vmxnet3s0: Object not found Aug 13 09:34:17 neumann nwamd[491]: [ID 819019 daemon.error] 1: nwamd_plumb_unplumb_interface: plumb IPv4 failed for vmxnet3s0: Operation not supported on disabled object Aug 13 09:34:17 neumann nwamd[491]: [ID 160156 daemon.error] 1: nwamd_plumb_unplumb_interface: plumb IPv6 failed for vmxnet3s0: Operation not supported on disabled object Aug 13 09:34:17 neumann nwamd[491]: [ID 771489 daemon.error] 1: add_ip_address: ipadm_create_addr failed on vmxnet3s0: Operation not supported on disabled object Aug 13 09:34:17 neumann nwamd[491]: [ID 405346 daemon.error] 9: start_dhcp: ipadm_create_addr failed for vmxnet3s0: Operation not supported on disabled object I then tried disabling network/physical:nwam in favour of network/physical:default. This works, the interface is brought up but physical:default fails and my network services (e.g. NFS) refuse to start. # ifconfig -a lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 vmxnet3s0: flags=1004843<UP,BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 vmxnet3s0:1: flags=1004842<BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 vmxnet3s0:2: flags=1004842<BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 vmxnet3s0:3: flags=1004842<BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 vmxnet3s0:4: flags=1004842<BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 vmxnet3s0:5: flags=1004842<BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 vmxnet3s0:6: flags=1004842<BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 vmxnet3s0:7: flags=1004842<BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 vmxnet3s0:8: flags=1004842<BROADCAST,RUNNING,MULTICAST,DHCP,IPv4> mtu 9000 index 2 inet 192.168.178.248 netmask ffffff00 broadcast 192.168.178.255 lo0: flags=2002000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv6,VIRTUAL> mtu 8252 index 1 inet6 ::1/128 vmxnet3s0: flags=20002000840<RUNNING,MULTICAST,IPv6> mtu 9000 index 2 inet6 ::/0 # cat /var/svc/log/network-physical\:default.log [ Aug 16 09:46:39 Enabled. ] [ Aug 16 09:46:41 Executing start method ("/lib/svc/method/net-physical"). ] [ Aug 16 09:46:41 Timeout override by svc.startd. Using infinite timeout. ] starting DHCP on primary interface vmxnet3s0 ifconfig: vmxnet3s0: DHCP is already running [ Aug 16 09:46:43 Method "start" exited with status 96. ] NFS server not running: # svcs -xv network/nfs/server svc:/network/nfs/server:default (NFS server) State: offline since August 16, 2012 09:46:40 AM UTC Reason: Service svc:/network/physical:default is not running because a method failed. See: http://illumos.org/msg/SMF-8000-GE Path: svc:/network/nfs/server:default svc:/milestone/network:default svc:/network/physical:default Reason: Service svc:/network/physical:nwam is disabled. See: http://illumos.org/msg/SMF-8000-GE Path: svc:/network/nfs/server:default svc:/milestone/network:default svc:/network/physical:nwam Reason: Service svc:/network/nfs/nlockmgr:default is disabled. See: http://illumos.org/msg/SMF-8000-GE Path: svc:/network/nfs/server:default svc:/network/nfs/nlockmgr:default See: man -M /usr/share/man -s 1M nfsd Impact: This service is not running. I'm new to the world of Solaris, so any help solving would be much appreciated. Thanks!

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• Learning Linux screencasts

  - by Dmitriy Nagirnyak

  Hi, I am trying to get started with Linux. There are number of books (many of which are just man pages), some of them provide good overview so I can dig deeper online then. What I would like is to find number of screencasts that would cover basics of Linux commands, server administration, commonly performed tasks etc (no GUI, only terminal). I want to watch the screencasts to "get it quicker" and then use a book or online resources to "dig it deeper". Any recommendations? Thanks, Dmitriy.

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• Multiple VLANs, multiple subnets, single DHCP server?

  - by EightQuarterBit

  Hey guys! At my job we are prepping to transition from multiple LANs connected over slow VPN connections to a single MAN connected over fiber, and I've got a few questions. First of all, we are planning on making each physical site its own VLAN, but we would like to have a single DHCP server at the data center hand out IPs to each VLAN. We've pretty much got the VLAN tagging structure all worked out, but we would like to have our single DHCP server assign different subnets of IPs to each VLAN. For instance, VLAN 2 gets 10.0.2.x through 10.0.4.x, VLAN 3 gets 10.0.5.x through 10.0.7.x etc. We are an Active Directory based shop and we have a Server 2003 box handling DHCP (though we aren't averse to upgrading it to server 2008.) Is this feasible, or am I pipe-dreaming?

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• Folder Redirection Issues - Freezing, Strange Warnings

  - by JCardenas

  I have Folder Redirection set up in a test environment for a couple accounts. I have followed the instructions for setting up the folder security settings here, and I can confirm that folders are created automatically by the system with the correct security settings when a user logs in. The GPO has been configured to automatically move user files up to the redirected folders, and this is working properly. Problems start occurring when a Windows 7 PC is in use. It is rare, but Explorer will lock up when performing a file write operation (move/copy/save from application). This results in the entire system being unusable, with only a hard reset resolving it (Task Manager doesn't start, the "three finger salute" does nothing, apps stop working). The mouse functions, but clicks do nothing. The other issue is that occasionally when copying/creating/modifying files a dialog box will pop up with the message "You need permission to perform this action. You require permission from XYZ\cardenas to make changes to this folder." The folder that was created by copying an existing one has the correct security settings and lists me as the owner. My company will not be implementing Folder Redirection on XP, since we are making a "clean break" with implementing new technologies with the Windows 7 rollout, so this behavior has not been - nor will be - checked for in XP. Thanks in advance for your help!

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• VSFTPD and Implicit SSL

  - by Luma

  Hi Everyone, I have a Debian Dedicated server and I want to enable Implicit SSL on it using VSFTPD and I am having a hard time. I have read online and the only thing I can really find is how to enable SSL and in the man pages it lists one implicit ssl command. but since Implicit ssl uses a second listener (990 by default) I have no idea how to make it work on Debian. Has anyone managed to get this working? Here is my config: listen=YES anonymous_enable=NO local_enable=YES write_enable=YES local_umask=022 connect_from_port_20=YES pam_service_name=vsftpd ssl_enable=YES allow_anon_ssl=NO force_local_data_ssl=NO force_local_logins_ssl=NO ssl_tlsv1=YES ssl_sslv2=NO ssl_sslv3=NO rsa_cert_file=/etc/ssl/certs/vsftpd.pem if I include Implicit_SSL=YES the server won't even start. thanks

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• How do I view the job queue in lftp after it has moved to a background process?

  - by drpfenderson

  I've just started using lftp for remote transferring files on my Raspberry Pi running Debian. I know how to transfer the files, and use queue and jobs to add and view transferring files. However, I'm not actually sure on how to view these transfers once lftp moves to the background. The lftp man page mentions how lftp is moving to the background, but when I open a new instance of the program from shell and type jobs, the queue is empty. However, I can clearly see using my file manager that the transfers are still happening, as the files are there and growing in size. I'm guessing that when I reopen lftp, it's just opening a new instance that isn't connected to the nohup mode lftp that has the active queue. I've tried searching various places, but no one else seems to have this particular issue. So, I guess what I'm asking is twofold: Is there a way to easily attach to the background lftp process to view the current jobs list? If not, is there a way to view this at all?

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• Network corruption - corrupt downloads, corrupt streams, etc.

  - by rfrankel

  I've been having some problems with my home LAN. Downloaded executables won't run, my remote desktop sessions keep getting interrupted due to encryption errors, flash video streams show visible corruption (both Hulu and YouTube), and I've had a couple downloads for which the md5 hashes don't match. The problem has even occurred with a couple images embedded in webpages, though that's rare enough (presumably because images are relatively smaller files). I've had this problem across two Windows machines and a Mac, so it's neither machine-specific nor at the app or OS level. Comcast claims it's nothing to do with them, and my Linksys/Cisco RV016 router is out of warranty, so I have no access to official support. When I log into my router, it shows no error packets or dropped packets received. I plugged a laptop directly into the router and was able to download a 5.5 MB file and verify its MD5 hash, which is not proof that the problem is downstream of the router, but makes it seem quite likely, since I failed to download the same file several times from two desktops (one Mac, one Windows). Could this be a wiring problem? If so, is there any way clever/elegant to determine which wiring is faulty with just software? If I can avoid tracing all the wires throughout my entire house it would make my life quite a bit easier.

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• How do you enable syslogd to accept incoming connections on Snow Leopard from remote loggers?

  - by Emmel

  How do I get syslogd to accept incoming connections from remote hosts on Snow Leopard? I'd like to centralize logging such that various devices and systems send logs to Snow Leopard's syslogd, which normally hangs out on UDP 514. However, I'm unable to get them to successfully be accepted by good ole syslogd. I tcpdumped on the Snow Leopard box to verify that packets are being spouted to port 514 -- they are. I checked that syslogd is listening on 514 -- it's not. Googling around told me that, on older versions of OSX (don't you love the way things change so rapidly on OSX), one just had to add a flag to the syslogd daemon to allow remote; one did this in com.apple.syslogd.plist. However the syslogd daemon has no flags (at least in its man page) that suggests any remote anything. What's the solution to this? Secondary, less import but relevant question: What's 'newsyslog'? I see a plist file but it's not running (apparently). Thanks

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• File sync over LAN

  - by Jack

  At the moment, I'm using Dropbox on my computer and Dropsync on my Android phone (over WiFi) to one-way sync the files (such as photos/app backups) on my phone to the Dropbox servers which are then synced to my computer. I like the features of Dropsync which can be set to sync only when the phone is charging and the WiFi is on. So everytime I charge my phone, i know my files are being backed up. Now I'm wondering if there's a similar app/program combo or something that can do what I'm currently doing but remove the middle-man (Dropbox servers)?

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• Torque and maui node status

  - by Lafada

  I am new for torque and maui. I was checking for node state to looking for which nodes are free and which nodes are in use. For torque one command is pbsnodes. Which gives status and other info related to node. When I was checking for maui then I found command diagnose -n which also shows status of the node. I was wondering between these 2 status. Both are giving different status for the same situation. When I do man pbsnodes I got the possible states for node "free", "offline", "down", "reserve", "job-exclusive", "job-sharing", "busy", "time-shared", or "state-unknown" But this type of different state I cant find for diagnose -n. How pbsnodes and diagnose -n get the status for node. Is there any database like xCAT use for torque or maui? Thx in advance for your valuable time.

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