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• [ubuntu] editting a grub

  - by Shishant

  Hello, I had installed reinstalled windows and ubuntu various times. Now Everything is set and I want to edit grub to set windows 7 as my default os when I run this command gksudo gedit /boot/grub/menu.lst I get an error that No such file or Directory found` then I tried this sudo grub find /boot/grub/stage1 I get an error No File found. Can anybody help me how can I change my default os? // Edited ls -a /boot/grub Thank You

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• Ubuntu 9.10 upgraded with Internet connection fail

  - by Neofizz

  I am pretty sure that the latest Ubuntu release does not support my wireless internet card. Everything was working fine in 9.04 and since upgrading my browser will load web pages. I can see and connect to my wep encrypted network. I can ping google.com and lose no packets. I am at the end of my tether, what else can I try? Is it possible to download a driver to re-enable my wireless?

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• Improving Manageability of Virtual Environments

  - by Jeff Victor

  Boot Environments for Solaris 10 Branded Zones Until recently, Solaris 10 Branded Zones on Solaris 11 suffered one notable regression: Live Upgrade did not work. The individual packaging and patching tools work correctly, but the ability to upgrade Solaris while the production workload continued running did not exist. A recent Solaris 11 SRU (Solaris 11.1 SRU 6.4) restored most of that functionality, although with a slightly different concept, different commands, and without all of the feature details. This new method gives you the ability to create and manage multiple boot environments (BEs) for a Solaris 10 Branded Zone, and modify the active or any inactive BE, and to do so while the production workload continues to run. Background In case you are new to Solaris: Solaris includes a set of features that enables you to create a bootable Solaris image, called a Boot Environment (BE). This newly created image can be modified while the original BE is still running your workload(s). There are many benefits, including improved uptime and the ability to reboot into (or downgrade to) an older BE if a newer one has a problem. In Solaris 10 this set of features was named Live Upgrade. Solaris 11 applies the same basic concepts to the new packaging system (IPS) but there isn't a specific name for the feature set. The features are simply part of IPS. Solaris 11 Boot Environments are not discussed in this blog entry. Although a Solaris 10 system can have multiple BEs, until recently a Solaris 10 Branded Zone (BZ) in a Solaris 11 system did not have this ability. This limitation was addressed recently, and that enhancement is the subject of this blog entry. This new implementation uses two concepts. The first is the use of a ZFS clone for each BE. This makes it very easy to create a BE, or many BEs. This is a distinct advantage over the Live Upgrade feature set in Solaris 10, which had a practical limitation of two BEs on a system, when using UFS. The second new concept is a very simple mechanism to indicate the BE that should be booted: a ZFS property. The new ZFS property is named com.oracle.zones.solaris10:activebe (isn't that creative? ). It's important to note that the property is inherited from the original BE's file system to any BEs you create. In other words, all BEs in one zone have the same value for that property. When the (Solaris 11) global zone boots the Solaris 10 BZ, it boots the BE that has the name that is stored in the activebe property. Here is a quick summary of the actions you can use to manage these BEs: To create a BE: Create a ZFS clone of the zone's root dataset To activate a BE: Set the ZFS property of the root dataset to indicate the BE To add a package or patch to an inactive BE: Mount the inactive BE Add packages or patches to it Unmount the inactive BE To list the available BEs: Use the "zfs list" command. To destroy a BE: Use the "zfs destroy" command. Preparation Before you can use the new features, you will need a Solaris 10 BZ on a Solaris 11 system. You can use these three steps - on a real Solaris 11.1 server or in a VirtualBox guest running Solaris 11.1 - to create a Solaris 10 BZ. The Solaris 11.1 environment must be at SRU 6.4 or newer. Create a flash archive on the Solaris 10 system s10# flarcreate -n s10-system /net/zones/archives/s10-system.flar Configure the Solaris 10 BZ on the Solaris 11 system s11# zonecfg -z s10z Use 'create' to begin configuring a new zone. zonecfg:s10z create -t SYSsolaris10 zonecfg:s10z set zonepath=/zones/s10z zonecfg:s10z exit s11# zoneadm list -cv ID NAME STATUS PATH BRAND IP 0 global running / solaris shared - s10z configured /zones/s10z solaris10 excl Install the zone from the flash archive s11# zoneadm -z s10z install -a /net/zones/archives/s10-system.flar -p You can find more information about the migration of Solaris 10 environments to Solaris 10 Branded Zones in the documentation. The rest of this blog entry demonstrates the commands you can use to accomplish the aforementioned actions related to BEs. New features in action Note that the demonstration of the commands occurs in the Solaris 10 BZ, as indicated by the shell prompt "s10z# ". Many of these commands can be performed in the global zone instead, if you prefer. If you perform them in the global zone, you must change the ZFS file system names. Create The only complicated action is the creation of a BE. In the Solaris 10 BZ, create a new "boot environment" - a ZFS clone. You can assign any name to the final portion of the clone's name, as long as it meets the requirements for a ZFS file system name. s10z# zfs snapshot rpool/ROOT/zbe-0@snap s10z# zfs clone -o mountpoint=/ -o canmount=noauto rpool/ROOT/zbe-0@snap rpool/ROOT/newBE cannot mount 'rpool/ROOT/newBE' on '/': directory is not empty filesystem successfully created, but not mounted You can safely ignore that message: we already know that / is not empty! We have merely told ZFS that the default mountpoint for the clone is the root directory. List the available BEs and active BE Because each BE is represented by a clone of the rpool/ROOT dataset, listing the BEs is as simple as listing the clones. s10z# zfs list -r rpool/ROOT NAME USED AVAIL REFER MOUNTPOINT rpool/ROOT 3.55G 42.9G 31K legacy rpool/ROOT/zbe-0 1K 42.9G 3.55G / rpool/ROOT/newBE 3.55G 42.9G 3.55G / The output shows that two BEs exist. Their names are "zbe-0" and "newBE". You can tell Solaris that one particular BE should be used when the zone next boots by using a ZFS property. Its name is com.oracle.zones.solaris10:activebe. The value of that property is the name of the clone that contains the BE that should be booted. s10z# zfs get com.oracle.zones.solaris10:activebe rpool/ROOT NAME PROPERTY VALUE SOURCE rpool/ROOT com.oracle.zones.solaris10:activebe zbe-0 local Change the active BE When you want to change the BE that will be booted next time, you can just change the activebe property on the rpool/ROOT dataset. s10z# zfs get com.oracle.zones.solaris10:activebe rpool/ROOT NAME PROPERTY VALUE SOURCE rpool/ROOT com.oracle.zones.solaris10:activebe zbe-0 local s10z# zfs set com.oracle.zones.solaris10:activebe=newBE rpool/ROOT s10z# zfs get com.oracle.zones.solaris10:activebe rpool/ROOT NAME PROPERTY VALUE SOURCE rpool/ROOT com.oracle.zones.solaris10:activebe newBE local s10z# shutdown -y -g0 -i6 After the zone has rebooted: s10z# zfs get com.oracle.zones.solaris10:activebe rpool/ROOT rpool/ROOT com.oracle.zones.solaris10:activebe newBE local s10z# zfs mount rpool/ROOT/newBE / rpool/export /export rpool/export/home /export/home rpool /rpool Mount the original BE to see that it's still there. s10z# zfs mount -o mountpoint=/mnt rpool/ROOT/zbe-0 s10z# ls /mnt Desktop export platform Documents export.backup.20130607T214951Z proc S10Flar home rpool TT_DB kernel sbin bin lib system boot lost+found tmp cdrom mnt usr dev net var etc opt Patch an inactive BE At this point, you can modify the original BE. If you would prefer to modify the new BE, you can restore the original value to the activebe property and reboot, and then mount the new BE to /mnt (or another empty directory) and modify it. Let's mount the original BE so we can modify it. (The first command is only needed if you haven't already mounted that BE.) s10z# zfs mount -o mountpoint=/mnt rpool/ROOT/zbe-0 s10z# patchadd -R /mnt -M /var/sadm/spool 104945-02 Note that the typical usage will be: Create a BE Mount the new (inactive) BE Use the package and patch tools to update the new BE Unmount the new BE Reboot Delete an inactive BE ZFS clones are children of their parent file systems. In order to destroy the parent, you must first "promote" the child. This reverses the parent-child relationship. (For more information on this, see the documentation.) The original rpool/ROOT file system is the parent of the clones that you create as BEs. In order to destroy an earlier BE that is that parent of other BEs, you must first promote one of the child BEs to be the ZFS parent. Only then can you destroy the original BE. Fortunately, this is easier to do than to explain: s10z# zfs promote rpool/ROOT/newBE s10z# zfs destroy rpool/ROOT/zbe-0 s10z# zfs list -r rpool/ROOT NAME USED AVAIL REFER MOUNTPOINT rpool/ROOT 3.56G 269G 31K legacy rpool/ROOT/newBE 3.56G 269G 3.55G / Documentation This feature is so new, it is not yet described in the Solaris 11 documentation. However, MOS note 1558773.1 offers some details. Conclusion With this new feature, you can add and patch packages to boot environments of a Solaris 10 Branded Zone. This ability improves the manageability of these zones, and makes their use more practical. It also means that you can use the existing P2V tools with earlier Solaris 10 updates, and modify the environments after they become Solaris 10 Branded Zones.

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• strange Postfix logwatch log summary on my ubuntu vps

  - by DannyRe

  Hi I would be very thankful if someone could help me on explaining this logwatch summary of my postfix installation on my ubuntu 10.04 vps. I dont really know if this might be a normal log file because of the many authentication failed entries and foreign IP addresses. Any advise for a novice? Thx! ****** Summary ************************************************************************************* 113 SASL authentication failed 195 Miscellaneous warnings 8.419K Bytes accepted 8,621 8.419K Bytes delivered 8,621 ======== ================================================== 3 Accepted 60.00% 2 Rejected 40.00% -------- -------------------------------------------------- 5 Total 100.00% ======== ================================================== 2 5xx Reject relay denied 100.00% -------- -------------------------------------------------- 2 Total 5xx Rejects 100.00% ======== ================================================== 116 Connections 1 Connections lost (inbound) 116 Disconnections 3 Removed from queue 3 Delivered 1 Hostname verification errors ****** Detail (10) ********************************************************************************* 113 SASL authentication failed -------------------------------------------------------------- 113 92.24.80.207 host-92-24-80-207.ppp.as43234.net 113 LOGIN 113 generic failure 195 Miscellaneous warnings ------------------------------------------------------------------ 113 SASL authentication failure: cannot connect to saslauthd server: Permission denied 41 inet_protocols: IPv6 support is disabled: Address family not supported by protocol 41 inet_protocols: configuring for IPv4 support only 2 5xx Reject relay denied ----------------------------------------------------------------- 1 46.242.103.110 unknown 1 [email protected] 1 114.42.142.103 114-42-142-103.dynamic.hinet.net 1 [email protected] 1 Connections lost (inbound) -------------------------------------------------------------- 1 After RCPT 3 Delivered ------------------------------------------------------------------------------- 3 myhost.xx 1 Hostname verification errors ------------------------------------------------------------ 1 Name or service not known 1 46.242.103.110 broadband-46-242-103-110.nationalcablenetworks.ru === Delivery Delays Percentiles ============================================================ 0% 25% 50% 75% 90% 95% 98% 100%

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• Ubuntu 10.04 Server on Hyper-V Server R2 has sluggish install and command line

  - by Paul Hobart

  I've installed Ubuntu Server 10.04 (64 bit) on a Hyper-V Server R2. I've encountered two issues that I think are related: Very slow install Very slow command prompt The text-mode installer goes through a series of text-based prompt windows. It takes 7-10 seconds for each of these windows to draw on the screen. The end result is that every time I answer a prompt and hit enter I wait for 15 seconds while the screen redraws line by line. I can literally see each line of text being drawn (like the old 300 baud modems days). Once done installing, scrolling on the command line is super slow. For instance, if a simple command, like "ls", causes the screen to scroll, it will scroll very slowly. This happens on a fresh install. The server functions as a LAMP server and an OpenSSH server, but that's it (I don't even have any Virtual Hosts set up yet). AND this only happens on the Virtual Machine console. I access the console through Hyper-V Manager and don't have this problem on any of my other Virtual Machines. Also, this problem does NOT happen when accessing a shell through OpenSSH. How can I improve this performance issue?

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• Ubuntu 64bit Xen DomU Issues after upgrade from Karmic to Lucid

  - by Shoaibi

  I was upgrading my servers today and it all went fine except the last machine which has the following issues: [Resolved using http://www.ndchost.com/wiki/server-administration/upgrade-ubuntu-pre-10.04#post-1004-upgradefinal-steps] No login prompt on console Done. Begin: Mounting root file system... ... Begin: Running /scripts/local-top ... Done. [ 0.545705] blkfront: xvda: barriers enabled [ 0.546949] xvda: xvda1 [ 0.549961] blkfront: xvde: barriers enabled [ 0.550619] xvde: xvde1 xvde2 Begin: Running /scripts/local-premount ... Done. [ 0.870385] kjournald starting. Commit interval 5 seconds [ 0.870449] EXT3-fs: mounted filesystem with ordered data mode. Begin: Running /scripts/local-bottom ... Done. Done. Begin: Running /scripts/init-bottom ... Done. Also tried by pressing ENTER and CTRL+C many times, no use. Resolved: [/tmp was mounted as noexec, changing that fix it]: I get errors when i try to re-install udev in single user mode: Unpacking replacement udev ... Processing triggers for ureadahead ... ureadahead will be reprofiled on next reboot Processing triggers for man-db ... Setting up udev (151-12.1) ... udev start/running, process 1003 Removing `local diversion of /sbin/udevadm to /sbin/udevadm.upgrade' update-initramfs: deferring update (trigger activated) Processing triggers for initramfs-tools ... update-initramfs: Generating /boot/initrd.img-2.6.32-25-server /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/local-premount/fixrtc: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/local-premount/ntfs_3g: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/local-premount/resume: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/nfs-top/udev: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/panic/console_setup: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/init-top/all_generic_ide: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/init-top/blacklist: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/init-top/udev: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/init-bottom/udev: Permission denied /usr/sbin/mkinitramfs: 329: /tmp/mkinitramfs_yuuTSc/scripts/local-bottom/ntfs_3g: Permission denied

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• GPU Debugging with VS 11

  - by Daniel Moth

  With VS 11 Developer Preview we have invested tremendously in parallel debugging for both CPU (managed and native) and GPU debugging. I'll be doing a whole bunch of blog posts on those topics, and in this post I just wanted to get people started with GPU debugging, i.e. with debugging C++ AMP code. First I invite you to watch 6 minutes of a glimpse of the C++ AMP debugging experience though this video (ffw to minute 51:54, up until minute 59:16). Don't read the rest of this post, just go watch that video, ideally download the High Quality WMV. Summary GPU debugging essentially means debugging the lambda that you pass to the parallel_for_each call (plus any functions you call from the lambda, of course). CPU debugging means debugging all the code above and below the parallel_for_each call, i.e. all the code except the restrict(direct3d) lambda and the functions that it calls. With VS 11 you have to choose what debugger you want to use for a particular debugging session, CPU or GPU. So you can place breakpoints all over your code, then choose what debugger you want (CPU or GPU), and you'll only be able to hit breakpoints for the code type that the debugger engine understands – the remaining breakpoints will appear as unbound. If you want to hit the unbound breakpoints, you'd have to stop debugging, and start again with the other debugger. Sorry. We suck. We know. But once you are past that limitation, I think you'll find the experience truly rewarding – seriously! Switching debugger engines With the Developer Preview bits, one way to switch the debugger engine is through the project properties – see the screenshots that follow. This one is showing the CPU option selected, which is basically the default that you are all familiar with: This screenshot is showing the GPU option selected, by changing the debugger launcher (notice that this applies for both the local and remote case): You actually do not have to open the project properties just for switching the debugger engine, you can switch the selection from the toolbar in VS 11 Developer Preview too – see following screenshot (the effect is the same as if you opened the project properties and switched there) Breakpoint behavior Here are two screenshots, one showing a debugging session for CPU and the other a debugging session for GPU (notice the unbound breakpoints in each case) …and here is the GPU case (where we cannot bind the CPU breakpoints but can the GPU breakpoint, which is actually hit) Give C++ AMP debugging a try So to debug your C++ AMP code, pull down the drop down under the 'play' button to select the 'GPU C++ Direct3D Compute Debugger' menu option, then hit F5 (or the 'play' button itself). Then you can explore debugging by exploring the menus under the Debug and under the Debug->Windows menus. One way to do that exploration is through the C++ AMP debugging walkthrough on MSDN. Another way to explore the C++ AMP debugging experience, you can use the moth.cpp code file, which is what I used in my BUILD session debugger demo. Note that for my demo I was using the latest internal VS11 bits, so your experience with the Developer Preview bits won't be identical to what you saw me demonstrate, but it shouldn't be far off. Stay tuned for a lot more content on the parallel debugger in VS 11, both CPU and GPU, both managed and native. Comments about this post by Daniel Moth welcome at the original blog.

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• OBIEE 11.1.1 - Introduction to OBIEE 11g Full Sample App

  - by user809526

  Isn't it nice to discover OBIEE 11g around a nice "How To" catalog of features? to observe OBI and Essbase relationships at work? to discover TimesTen? The OBIEE 11g Full Sample App (FSA) is a comprehensive collection of examples designed to demonstrate the latest Oracle BIEE 11g capabilities and design best practices: Enhanced visualizations as Geo-spacial maps and interactive dashboards, Action Framework,  BI Publisher, Scorecard and Strategy Management, Mobile style sheets, Semantic layer modeling, Multi-source federation, Integration with products such as Essbase, Oracle OLAP, ODM, TimesTen, ODI and more The FSA is intended to be comprehensive, it is big (see CAVEAT below). The FSA is not an Oracle product, it is a good will free deployment of OBIEE/Essbase designed to exemplify OBIEE features, infrastructure and security around the Fusion Middleware components. Its contents and code are distributed free for demonstrative purposes only. It is neither maintained nor supported by Oracle as a licensed product. The OBIEE Full Sample App is independent of the default Sample App that comes with the OBIEE product. BENEFITS The FSA helps as a demonstrator of OBIEE 11g best practices, a tutorial, an environment "Test & Scrap", a SR bench (regression, conflicts), a tuning bench, a quick ready made POC seed for projects, a security options environment, ... The FSA - Is organized around a catalog of functional features - Has been deployed over 1000 times, it should be stable RELEASE The Full Sample App (V107) is bound to OBIEE 11.1.1.5 and Essbase 11.1.2.1 (November 2011). The FSA release dates are independent of the Product GA date (OBIEE). In early December 2011, a new functional Patch (V110) is released. It is easily applied (in less than 15 mins) on top of OBIEE SampleApp 11.1.1.5 (V107). The patch (V110) includes additional functional examples:        1. Web Catalog Statistics Application: Provides detailed insight into your web catalog content, dormant catalog objects, webcat impact analysis for metadata changes and more        2. Data inflation Scripts: A set of simple SQL procedures to quickly inflate SampleApp Fact and Dimension data to millions of records in a few minutes        3. Public Content Extensions Framework: A patching framework for public examples and contributions leveraging SampleApp        4. Additional report examples (including bridge report, external chart integrations) and bug fixes DISTRIBUTION as VBox image (November 2011) The ready made VBox image is designed to run on Virtual Box. It can be converted to VMware (see another BLOG). 1/ http://www.oracle.com/technetwork/middleware/bi-foundation/obiee-samples-167534.html VBox Image Deployment Guide Sampleapp_v107_GA.ovf - VBox image key file The above http URL provides the user:password for the ftp URLs below. 2/ ftp://user:[email protected]/static/SampleAppV107/ 12 "7-zip" files Sampleapp_v107_GA_7_20.7z.001 -> .012 We recommend 7-zip file manager for unzipping (http://www.7-zip.org/). Select Unzip here option, it will create the contents under a directory named "SampleApp_10722". On Windows, it is important to download and save zip file under the root directory (e.g. C:\ or D:\) because of possible long pathnames. 3/ ftp://user:[email protected]/static/SampleAppV107/Unzipped_Version/ 4 files Sampleapp_v107_GA-disk[1234].vmdk Important note: Check the provided checksums (md5sum). Please do it! DISTRIBUTION as Installation files for existing OBI 11.1.1.5 (November 2011) http://www.oracle.com/technetwork/middleware/bi-foundation/obiee-samples-167534.html Install files Deployment Guide SampleApp_10722_1.zip - 198 MB CAVEAT Many computers have RAM chips problems that keep often silent ... until you manipulate big files. It is strongly advised you run some memory check program eg MEMTEST in GRUB boot manager. Running md5sum repeatedly onto the very same big file must be consistent [same result], else a hardware memory problem is suspected. For Virtual Box, you should most likely enable VT-X (Vanderpool) hardware virtualization in BIOS. A free disk space of 80 GB is required to perform safely the VBox image installation. A Virtual Machine of minimum 6 to 7 GB memory fits the needs of combining OBIEE and Essbase execution.

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• Solaris 11 Update 1 - Link Aggregation

  - by Wesley Faria

  Solaris 11.1 No início desse mês em um evento mundial da Oracle chamado Oracle Open World foi lançada a nova release do Solaris 11. Ela chega cheia de novidades, são aproximadamente 300 novas funcionalidade em rede, segurança, administração e outros. Hoje vou falar de uma funcionalidade de rede muito interessante que é o Link Aggregation. O Solaris já suporta Link Aggregation desde Solaris 10 Update 1 porem no Solaris 11 Update 1 tivemos incrementos significantes. O Link Aggregation como o próprio nome diz, é a agregação de mais de uma inteface física de rede em uma interface lógica .Veja agumas funcionalidade do Link Aggregation: · Aumentar a largura da banda; · Imcrementar a segurança fazendo Failover e Failback; · Melhora a administração da rede; O Solaris 11.1 suporta 2(dois) tipos de Link Aggregation o Trunk aggregation e o Datalink Multipathing aggregation, ambos trabalham fazendo com que o pacote de rede seja distribuído entre as intefaces da agregação garantindo melhor utilização da rede.vamos ver um pouco melhor cada um deles. Trunk Aggregation O Trunk Aggregation tem como objetivo aumentar a largura de banda, seja para aplicações que possue um tráfego de rede alto seja para consolidação. Por exemplo temos um servidor que foi adquirido para comportar várias máquinas virtuais onde cada uma delas tem uma demanda e esse servidor possue 2(duas) placas de rede. Podemos então criar uma agregação entre essas 2(duas) placas de forma que o Solaris 11.1 vai enchergar as 2(duas) placas como se fosse 1(uma) fazendo com que a largura de banda duplique, veja na figura abaixo: A figura mostra uma agregação com 2(duas) placas físicas NIC 1 e NIC 2 conectadas no mesmo switch e 2(duas) interfaces virtuais VNIC A e VNIC B. Porem para que isso funcione temos que ter um switch com suporte a LACP ( Link Aggregation Control Protocol ). A função do LACP é fazer a aggregação na camada do switch pois se isso não for feito o pacote que sairá do servidor não poderá ser montado quando chegar no switch. Uma outra forma de configuração do Trunk Aggregation é o ponto-a-ponto onde ao invéz de se usar um switch, os 2 servidores são conectados diretamente. Nesse caso a agregação de um servidor irá falar diretamente com a agregação do outro garantindo uma proteção contra falhas e tambem uma largura de banda maior. Vejamos como configurar o Trunk Aggregation: 1 – Verificando quais intefaces disponíveis # dladm show-link 2 – Verificando interfaces # ipadm show-if 3 – Apagando o endereçamento das interfaces existentes # ipadm delete-ip <interface> 4 – Criando o Trunk aggregation # dladm create-aggr -L active -l <interface> -l <interface> aggr0 5 – Listando a agregação criada # dladm show-aggr Data Link Multipath Aggregation Como vimos anteriormente o Trunk aggregation é implementado apenas 1(um) switch que possua suporte a LACP portanto, temos um ponto único de falha que é o switch. Para solucionar esse problema no Solaris 10 utilizavamos o IPMP ( IP Multipathing ) que é a combinação de 2(duas) agregações em um mesmo link ou seja, outro camada de virtualização. Agora com o Solaris 11 Update 1 isso não é mais necessário, voce pode ter uma agregação de 2(duas) interfaces físicas e cada uma conectada a 1(um) swtich diferente, veja a figura abaixo: Temos aqui uma agregação chamada aggr contendo 4(quatro) interfaces físicas sendo que as interfaces NIC 1 e NIC 2 estão conectadas em um Switch e as intefaces NIC 3 e NIC 4 estão conectadas em outro Swicth. Além disso foram criadas mais 4(quatro) interfaces virtuais vnic A, vnic B, vnic C e vnic D que podem ser destinadas a diferentes aplicações/zones. Com isso garantimos alta disponibilidade em todas a camadas pois podemos ter falhas tanto em switches, links como em interfaces de rede físicas. Para configurar siga os mesmo passos da configuração do Trunk Aggregation até o passo 3 depois faça o seguinte: 4 – Criando o Trunk aggregation # dladm create-aggr -m haonly -l <interface> -l <interface> aggr0 5 – Listando a agregação criada # dladm show-aggr Depois de configurado seja no modo Trunk aggregation ou no modo Data Link Multipathing aggregation pode ser feito a troca de um modo para o outro, pode adcionar e remover interfaces físicas ou vituais. Bem pessoal, era isso que eu tinha para mostar sobre a nova funcionalidade do Link Aggregation do Solaris 11 Update 1 espero que tenham gostado, até uma próxima novidade.

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• Oracle Fusion Middleware (OFM) 11g (11.1.1.7) Starter Kit available & Customizable Demos

  - by JuergenKress

  OFM PS6 starter kit is now available from Global Sales Engineering (GSE, formerly DSS).  OFM Starter Kit provides a basic foundation to design and develop middleware demos. It is based on plug and play architecture and designed to use optimal hardware resources.  The starter kit is easily extendable to incorporate more Oracle Fusion Middleware components. New Features Built on the "Build your own demos (POC)" concept Starter Kit comes with core OFM Components Oracle Unified Directory (OUD, SOA, WebCenter Content and WebCenter Spaces) Starter Kit is available over the Internet and is tuned for optimal performance Portable/Downloadable version of the Starter Kit will be available soon. Please check Demos Corner. For and questions/feedback please contact chandan Das or Anand Prasad. Call to Action Review the Release Notes. & Visit the GSE Website and book the “OFM 11.1.1.7.0 Base Platform” customizable instance. Further information about this platform is available on this page. This announcement will appear in the archive as number 412. Customizable Demos We are happy to announce the availability of the SOA 11.1.1.7.0 Platform.  SOA 11g (11.1.1.7) Platform is fully featured, built on Plug and Play architecture, and designed to develop best of breed SOA demos. New Features Built on the "Build your own demos" concept Fusion Middleware products SOA, BAM, OSB, OEP, OER, OSR, WebCenter Content and WebCenter Spaces are installed, configured, and tuned for better performance Demo instances are available over the Internet Portable version of the platform will be available soon. Please check Demos Corner For questions/feedback please contact Anvesh Baluguri or Anand Prasad. Call to Action Review the Release Notes & Visit the GSE Website and book the “SOA 11.1.1.7.0 Platform” customizable demo. Further information about this platform is available on this page.  This announcement will appear in the archive as number 413. To get access to the demo environment please contact OPN! Support If you need assistance or encounter any issues please submit a GSE Repository ticket or call the GSE Support Hotline for assistance. The GSE Support Hotline is available 24 hours a day, Monday through Friday, at: US/CAN: +1.650.506.8763 & EMEA: +44 118 9240808 & APAC: +65.6436.2150 & LAD: +1.650.506.8763 & Japan: +81-3-6834-6097. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Mix Forum Technorati Tags: OFM,demos,sales,marketing,dss,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• "No bootable device - insert boot disk" after restart on Ubuntu 10.04 b1 update

  - by anjanesh

  I was making an update on my Ubuntu 10.04 beta1 64-bit PC when, after reboot I get PXE-E61: Mediaa test failure, check cable PXE-M0F: Exiting Intel Boot Agent. No bootable device - insert boot disk and press any key How did my boot record disappear ? BIOS Boot Boot Menu Type : Normal Boot Device Priority : <CD/DVD-ROM Drive> <Hard Disk Drive> <Floppy Drive> <Ethernet> Hard Driver Order : No Hard Disk Drive CD/DVD ROM Drive Order : <PT-TSSTcorp CDDV> Removable Drive Order : No Removable Drive Boot to Optical Devices : <Enable> Boot to Removable Devices : <Enable> Boot to Network : <Enable> USB Boot : <Enable>

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• Double default gateway ubuntu server

  - by Elena

  Hi, I've just installed an Ubuntu server 9.10 on an EEEBox. This is my /etc/network/interfaces # The loopback network interface auto lo iface lo inet loopback auto wlan0 iface wlan0 inet static address 192.168.48.16 netmask 255.255.248.0 wireless-essid mynet auto eth0 iface eth0 inet static address xx.xx.xx.xx netmask 255.255.255.224 gateway xx.xx.yy.yy When I restart /etc/init.d/networking, I can access the eth0 ip address from the internet and I can ping the machines in my wifi network mynet. Everything works fine and I have one default gateway. But after some time if I check again the route I just find two default gateways: one is correct and is the previous one, but the other is the one of the wifi network. I have a quite low signal of mynet where my server is and sometimes the wifi just disconnect and then reconnect again. Then I think that this can be a problem and the dhcp of the wifi net, when reconnecting it also add a default gateway. Any idea on how to resolve this issue?

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• Double default gateway ubuntu server

  - by Elena

  I've just installed an Ubuntu server 9.10 on an EEEBox. This is my /etc/network/interfaces # The loopback network interface auto lo iface lo inet loopback auto wlan0 iface wlan0 inet static address 192.168.48.16 netmask 255.255.248.0 wireless-essid mynet auto eth0 iface eth0 inet static address xx.xx.xx.xx netmask 255.255.255.224 gateway xx.xx.yy.yy When I restart /etc/init.d/networking, I can access the eth0 ip address from the internet and I can ping the machines in my wifi network mynet. Everything works fine and I have one default gateway. But after some time if I check again the route I just find two default gateways: one is correct and is the previous one, but the other is the one of the wifi network. I have a quite low signal of mynet where my server is and sometimes the wifi just disconnect and then reconnect again. Then I think that this can be a problem and the dhcp of the wifi net, when reconnecting it also add a default gateway. Any idea on how to resolve this issue?

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• Apache restart on Ubuntu - error “could not bind to address 0.0.0.0:80”

  - by william

  I'm a n00b - trying to get apache2 set up on Ubuntu 9.10 (Karmic Koala) on Rackspace Cloud. I have set up/configured OpenSSL and installed Apache, but Apache won't start. I assume its a misconfiguration in my /etc/apache2/sites-available/ssl or /etc/apache2/sites-available/default files) When I try to restart apache using the command: sudo /etc/init.d/apache2 restart I get the following error message: [error] (EAI 2)Name or service not known: Could not resolve host name *.80 -- ignoring! [error] (EAI 2)Name or service not known: Could not resolve host name *.80 -- ignoring! (98)Address already in use: make_sock: could not bind to address 0.0.0.0:80 no listening sockets available, shutting down Unable to open logs ...fail! For my /etc/apache2/sites-available/ssl I have used a virtual host of *:443. For my /etc/apache2/sites-available/default i have used a virtual host of *:80

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• Machine freezes when configuring dual display on Ubuntu 9.10 (karmic)

  - by sa125

  Hi - I'm trying to configure dual displays on an Ubuntu 9.10 machine. When I connect the 2 screens (1 VGA input, the other DVI), I see them in a mirrored display. I opened up Display Settings and unchecked the 'mirror screens' box, and when I clicked apply, the machine froze and I had to force restart it. This happened repeatedly for about 6 times until I gave up. How do I set it up to boot up normally with dual display working? thanks. edit: I thought it might be related to the virtual screen size, so I tried to edit /etc/X11/xorg.conf to add: SubSection "Display" Virtual 2560 1024 EndSubSection But that didn't do much. Each screen works fine on it's own, and together with mirrored display.

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• "No bootable device - insert boot disk" after restart on Ubuntu 10.04 b1 update

  - by anjanesh

  I was making an update on my Ubuntu 10.04 beta1 64-bit PC when, after reboot I get PXE-E61: Mediaa test failure, check cable PXE-M0F: Exiting Intel Boot Agent. No bootable device - insert boot disk and press any key How did my boot record disappear ? BIOS Boot Boot Menu Type : Normal Boot Device Priority : <CD/DVD-ROM Drive> <Hard Disk Drive> <Floppy Drive> <Ethernet> Hard Driver Order : No Hard Disk Drive CD/DVD ROM Drive Order : <PT-TSSTcorp CDDV> Removable Drive Order : No Removable Drive Boot to Optical Devices : <Enable> Boot to Removable Devices : <Enable> Boot to Network : <Enable> USB Boot : <Enable>

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• Sharing files from Ubuntu to Mac

  - by seengee

  Hi, Running Ubuntu 10.04 in one office and we want a couple of Mac's in another office to be able to connect to shares on this computer. Want a fairly simple solution to this if one exists. Started looking at setting up a VPN using PPTP but it seems quite complicated. Also seen mention of VNC but this seems more related to sharing desktops and all i want to do is share a directory. Could i just install open SSH and have the Mac users mount a share over SSH using public/private key encryption?

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• How to stop blanking screen although I am active on Ubuntu Karmic on old IBM Laptop

  - by Glen S. Dalton

  How to stop blanking screen although I am active on Ubuntu Karmic on old IBM Laptop 600E? After some time of working on the machine the screen goes blank. When I hit ESC on the built-in keyboard (not on the attached USB keyboard where I work) it comes back and everything works fine until the next screen-blanking. I suspect it is some power management issue. When I use an old keyboard that has a ps2 connector it does not happen. So my guess is that the usb keyboard does not update the power management timer that detects when the session was last used? I am using fluxbox window manager. I do not want to disable power management because it is nice that the fan only works at the necessary speed (the fan spped is regulated which I can hear) But I could disable power management for testing purposes.

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• Change popup format for Kopete in Gnome (Ubuntu 10.04)

  - by HorusKol

  After trialling Empathy which was included with Gnome/Ubuntu 10.04 I decided to go back to Kopete since I was losing chat messages. However, for some reason, Kopete is now displaying all popups in a big, ugly window with four options (ok, cancel, view, ignore, or something like that) that actually all seem to do nothing. I tried looking for options in Kopete to change the popup style to the nicer Gnome style one which goes up in the top-right of my desktop, but it doesn't seem to be possible with this release. So I had to resort to removing all popup messages from Kopete to prevent my screen being taking over by a popup requiring action for every incoming chat message. Unfortunately, this now means that I do not get any notifications when people message me - and so I can go a couple of hours without realising that they did. Anyone know how to get the nice, unobtrusive popups working in this version?

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• Start Chrome in incognito mode in Ubuntu netboox remix

  - by Rajkumar S

  I am using Ubuntu 10.04 (Lucid) Netbook Remix in my Asus Aspire One. My default browser is Firefox and I am using Chrome for Google search in incognito mode. I want to start Chrome in incognito mode by default. I know that I need to use the following command to start the Chrome in incognito mode by default. Google-chrome --incognito %s What I do not know is how/where to edit the commandline in the launcher. Any tips on how to do this is much appreciated.

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• Ubuntu displaying GDM but no login

  - by Shawn

  Ubuntu (Wubi, Lucid Lynx) boots and shows the login screen itself with the background and plays the boot sound but a list of users is never displayed. A mouse is on screen and I can move it but, alas, it does nothing. Dropping to a virtual term with CTRL+Alt+F# drops me to a cursor but I can't actually input anything. I can't boot into single-user with GRUB since it's Wubi and it never specifies a boot kernel directly in GRUB's initial menu.lst (only in files that it then reads from). Other details that may be helpful: Single monitor Same video card that's been working for months No new hardware Edit: I ssh'd in since it evidently booted up the sshd which is handy. dpkg-reconfigure gdm didn't do anything helpful. I do, however, get a "no seat-id found" when manually running it.

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• Change popup format for Kopete in Gnome (Ubuntu 10.04)

  - by HorusKol

  After trialling Empathy which was included with Gnome/Ubuntu 10.04 I decided to go back to Kopete since I was losing chat messages. However, for some reason, Kopete is now displaying all popups in a big, ugly window with four options (ok, cancel, view, ignore, or something like that) that actually all seem to do nothing. I tried looking for options in Kopete to change the popup style to the nicer Gnome style one which goes up in the top-right of my desktop, but it doesn't seem to be possible with this release. So I had to resort to removing all popup messages from Kopete to prevent my screen being taking over by a popup requiring action for every incoming chat message. Unfortunately, this now means that I do not get any notifications when people message me - and so I can go a couple of hours without realising that they did. Anyone know how to get the nice, unobtrusive popups working in this version?

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• Open a screen session inside a certain user on boot Ubuntu Server Linux

  - by Pez Cuckow

  I currently have a private server which I test my web apps on which runs Ubuntu Server 10.04 I also host a few game servers (rather than having wasted CPU time :-D) for some of my friends. These game servers I run in the game user account and each one has it's own screen session (so friends can ssh in and reboot the game server etc...). For example screen -R l4d2 runs ./start in the L4D2 folder. However if I reboot the server (which I have to do occasionally) all these sessions close and I have to manually create all the screen sessions and run the required games within them. Is there a way to set these screen sessions as Daemons or services or just boot on server start so they restart themselves on server reboot? I hope I have made my question easy to understand but feel free to ask questions! Many thanks,

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• Where is php executable on Ubuntu?

  - by user601L

  I have installed apache and php. I know php works as I have tested a simple php file on apache server. I'm writing a simple webserver which should be able to process php files. So what I want to do is once I get a request for a php file, something like 'exec php test.php' and get the output and pass it to the client. As I'm not much into Ubuntu, I don't know where is the php executable (should be in \bin right?) to do it. But there is no php file inside \bin or \usr\bin. When I run 'which php' it shows nothing. How do I do this?

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• High fan speed after return from suspend (on Ubuntu)

  - by Bolo

  Hi, I've got a HP ProBook 5310m laptop with Ubuntu 10.04 (32 bit). When I return from suspend, the fan speed is usually very high: FDTZ sensor reports "90 °C". Yes, the units are wrong, since FDTZ does not report temperature, but fan speed – that's probably just a small bug in reporting. Interestingly, when I plug or unplug the power cable for a moment, the fan speed returns back to normal. My questions: Where can I report this problem? Is it about ACPI support in the kernel? What is the address of the relevant bug tracker? As a workaround for now, how can I programmatically trigger a behavior equivalent to (un)plugging the power cable. More generally, how can I force ACPI to recalculate fan speed? Ideally, I'm looking for something like echo foo > /proc/bar. Thanks in advance!

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