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• HowTo import Certificate (pfx) with private key in WinXP

  - by Gunther

  Hello, I tried the whole day just to import a cetrificate in winXP, but I allways failed. I did following: Create the certificate with private key (no pasword): makecert -sr LocalMachine -ss My -pe -sky exchange -n "CN=TestCert" -a sha1 -sv TestCert.pvk TestCert.cer Then put certificate and private key together into pfx file: pvk2pfx.exe -pvk TestCert.pvk -spc TestCert.cer -pfx TestCert.pfx Import pfx file with commandline tool (German System): winhttpcertcfg.exe -i TestCert.pfx -a NT-AUTORITÄT\NETZWERKDIENST -c LOCAL_MACHINE\My Error: Unable to import contents of PFX file. Please make sure the filename and path, as well as the password, are correct. Hint: "NT-AUTORITÄT\NETZWERKDIENST" -- "NT-AUTHORITY\NETWORKSERVICE" Filename is ok, password was not set. Even if I set the password (e.g. "MyPassword") in Step 1 and type at the end of step 3: ... -p MyPassword I got the same error. Then I tried to import in the certificate console (mmc with certificate snap-in). There i got following error: "Der private Schlüssel, den Sie importieren, erfordert möglicherweise einen Dienstanbieter, der nicht installiert ist." -- "The imported private key may requires a service-supplier which is not installed". But the Microsoft Crypto-Service is up and running. What else can I do? On Windows Vista and Windows 7 I got this running without these problems. I need this Certificate to run a WCF Service. Thanks in advance for any hint. Regards, Gunther

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• Apache log rotation: logrotate vs rotatelogs vs chronolog

  - by Enrico

  I have been researching log rotation for my server which hosts ~5 fairly high traffic sites. From what I can tell, my options are to use logrotate or to use piped logging with either rotatelogs or chronolog. logrotate requires a restart of apache and both SIGHUP and SIGUSR1 restarts are less than ideal on high traffic sites, because either you drop a bunch of connections or you need to delay compressing the old log until all child processes have died naturally. Also, downtime can be quite significant if compression is enabled. Would using logrotate - without compression and with graceful restart - and compressing old logs after the fact be the best way to minimize downtime? chronolog and rotatelogs sound promising, but are not well documented. I couldn't find examples of using either in combination with vhost specific logs. The chronolog website says, "when the expanded filename changes, the current file is closed and a new one opened". Is this globally? Or is that per AccessLog, CustomLog or ErrorLog directive? Is there a significant difference between chronolog and rotatelogs?

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• Where to get glib-config for Kubuntu?

  - by Carl Smotricz

  I'm trying to compile Midnight Commander on a KUbuntu 9.10 (Karmic) box with no root access. I've set up a directory under $HOME, downloaded the mc source package and various stuff required for building, such as autotools. I've unpacked the CONTENTS of all those packages into this working directory such that I have the usual ./usr, ./lib, ./etc hierarchy. I manage to get configure through a lot of tests, but I can't seem to fool it into finding glib. checking for glib-2.0... checking for glib-config... no checking for glib12-config... no checking for glib-config... no checking for GLIB - version >= 1.2.6... no *** The glib-config script installed by GLIB could not be found *** If GLIB was installed in PREFIX, make sure PREFIX/bin is in *** your path, or set the GLIB_CONFIG environment variable to the *** full path to glib-config. configure: error: Test for glib failed. GNU Midnight Commander requires glib 1.2.6 or above. My system has glib installed: /lib/libglib-2.0.so.0 /lib/libglib-2.0.so.0.2200.3 ... and I've also downloaded and unpacked the glib package into my working directory: libglib2.0-0_2.22.2-0ubuntu1_i386.deb libglib2.0-dev_2.22.2-0ubuntu1_i386.deb ... but still the elusive glib-config is nowhere to be found. It's not in any debian package for Karmic, either. So I'd appreciate any help getting over this hurdle. Please note, again, that I don't have root, so I can't just merrily apt-get stuff.

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• PostgreSQL update problems with uuid

  - by kdl

  Hi, I am trying to run yum update on my CentOS 5.2 box and keep getting this message: Missing Dependency: libossp-uuid.so.15 is needed by package postgresql-contrib I ran yum update postgresql separately and now it's 8.3.8. I also downloaded uuid-1.6.2 and built it from source, but I still get the same result. yum update -d6 uuid gives me this at the end: --> Running transaction check ---> Package uuid.i386 0:1.6.1-3.el5.kb set to be updated Checking deps for uuid.i386 0-1.6.1-3.el5.kb - u Checking deps for uuid.i386 0-1.5.1-4.rhel5 - None postgresql-contrib requires: libossp-uuid.so.15 --> Processing Dependency: libossp-uuid.so.15 for package: postgresql-contrib Needed Require is not a package name. Looking up: libossp-uuid.so.15 Potential Provider: uuid.i386 0:1.5.1-4.rhel5 Mode is u for provider of libossp-uuid.so.15: uuid.i386 0:1.5.1-4.rhel5 Mode for pkg providing libossp-uuid.so.15: u Cannot find an update path for dep for: libossp-uuid.so.15 Searching pkgSack for dep: libossp-uuid.so.15 Potential match for libossp-uuid.so.15 from uuid - 1.5.1-4.rhel5.i386 Matched uuid - 1.5.1-4.rhel5.i386 to require for libossp-uuid.so.15 uuid - 1.5.1-4.rhel5.i386 is in providing packages but it is already installed, removing. --> Finished Dependency Resolution Dependency Process ending Error: Missing Dependency: libossp-uuid.so.15 is needed by package postgresql-contrib How can I resolve this situation? Thanks

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• Ubuntu software stack to mimic Active Directory auth

  - by WickedGrey

  I'm going to have an Ubuntu 11.10 box in a customer's data center running a custom webapp. The customer will not have ssh access to the box, but will need authentication and authorization to access the webapp. The customer needs to have the option of either pointing the webapp at something that we've installed locally on the machine, or to use an Active Directory server that they have. I plan on using a standard "users belong to groups; groups have sets of permissions; the webapp requires certain permissions to respond" auth setup. What software stack can I install locally that will allow an easy switch to and from an Active Directory server, while keeping the configuration as simple as possible (both for me and the end customer)? I would like to use as much off-the-shelf software for this as possible; I do not want to be in the business of keeping user passwords secure. I could see handling the user/group/permission relationships myself if there is not a good out-of-the-box solution (but that seems highly unlikely). I will accept answers in the form of links to "here is what you need" pages, but not "here is what Kerberos does" unless that page also tells me if it's required for my use case (essentially, I know that AD can speak Kerberos, but I can't tell if I need it to, or if I can just use LDAP, or...).

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• Remote Scripted Installation of Sun/Oracle JRE

  - by chrisbunney

  I'm attempting to automate the installation of a Debian server (debian 6.0 squeeze 64bit). Part of the installation requires the Sun JRE package to be installed. This package has a licence agreement, which has to be accepted. I have a script which uses the following lines to accept and install the JRE: echo "sun-java6-bin shared/accepted-sun-dlj-v1-1 boolean true" | debconf-set-selections apt-get install -y sun-java6-jre This works fine when executing the script locally. However, I need to execute the script remotely using the ssh command, e.g.: ssh -i keyFile root@hostname './myScript' This doesn't work. In particular, it fails on apt-get install -y sun-java6-jre. It would seem that in spite of me setting the licence agreement to accepted, when run remotely in this manner it is ignored. Despite setting the value to true, I still get prompted to manually accept the agreement when I run this command: ssh -i keyFile root@hostname 'apt-get install -y sun-java6-jre' I suspect it is something to do with environment that is taken care of when running a proper terminal session, but have no idea what to try next to fix it. So, what do I have to do to get this command (and hence my deployment script) to run correctly when executing it remotely? Or is there an alternative way that allows me to install the JRE remotely by another means? Edit 0: I have compared the output of env when executed remotely via ssh and when executed via a local terminal session. The only difference between the outputs is that the local terminal session has the additional value TERM=xterm.

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• Preventing Windows version of Vim from destroying other file systems permissions

  - by dborba

  I am currently using the windows version of gVim to edit source files on a networked drive mapped to a linux system, as well as local files created in cygwin. The problem is that the windows version of gVim destroys the original file permissions on the respective systems. IE: Files on cygwin are defaulted to 077. When edited by the windows version of vim they are saved as 777.This problem doesn't even occur when using ms-notepad (as well as all other editors I've tried), so I am not quite sure why gVim does it. A possible solution would be to use cygwin's gVim for everything, but that's rather cumbersome as it requires running an x11 environment to support it, and it causes some problems when running some commands from within gVim (or vim for that matter) when working on the networked drive. Any ideas how I might be able to maintain the existing file permissions? Edit: This morning while on a different machine the problem with cygwin did not occur. Cygwin & gVim were the same version, however the other machine is running WinXP while the machine the problem is occurring on runs Win7.

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• mdadm+zfs vs mdadm+lvm

  - by Alex

  This may be a naive question since I'm new to this and I cannot find any results about mdadm+zfs, but after some testing it seems it might work: The use case is a server with RAID6 for some data that is backed-up somewhat infrequently. I think I'm well served by any of ZFS or RAID6. Platform is Linux. Performance is secondary. So the two setups I am considering are: A RAID6 array plus regular LVM and ext4 A RAID6 array plus ZFS (without redundancy). Is this second option that I don't see discussed at all. Why ZFS+RAID6? It's mainly because the inability of ZFS to grow a raidz2 with new disks. You can replace disks with larger ones, I know, but not add another disk. You can accomplish 2-disk redundancy and ZFS disk growth using mdadm as the redundancy layer. Besides that main point (otherwise I could go directly to raidz2 without RAID under it), these are the pros-cons that I see for each option: ZFS has snapshots without preallocated space. LVM requires preallocation (might be no longer true). ZFS has checksumming (very interested in this) and compression (nice bonus). LVM has online filesystem growth (ZFS can do it offline with export/mdadm --grow/import). LVM has encryption (ZFS-on-Linux has not). This is the only major con of this combo I see. I guess I could go RAID6+LVM+ZFS... seems too heavy, or not? So, to close with a proper question: 1) Is there anything that inherently discourages or precludes RAID6+ZFS? Anyone has experience with a setup like this? 2) Are there possibilities for checksumming and compression that would make ZFS unnecessary (maintaining the possibility of filesystem growth)? Because the RAID6+LVM combo seems the sanctioned, tested way.

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• getting "No LoginModules configured" for JAAS login under WebSphere security domain

  - by user1739040

  I have a JAX-RPC web service running on WebSphere V7. It requires a UserNameToken for security. I have a custom login module (MyLoginModule) which extracts the username and password, and that module is defined as a JAAS application login in the websphere admin console. Using IBM RAD 8.0, I have bound the token consumer to the login module using the JAAS config name of the module. This all works fine and happy on my development server. Now I realize, that for deployment to another server, I am required to move the JAAS login from global security to a security domain. When I do that, it breaks my web service. I get this SOAP Fault message: com.ibm.wsspi.wssecurity.SoapSecurityException: WSEC6520E: Construction of the login context failed. The exception is : javax.security.auth.login.LoginException: No LoginModules configured for MyLoginModule According to the IBM docs: The JAAS application logins, the JAAS system logins, and the JAAS J2C authentication data aliases can all be configured at the domain level. By default, all of the applications in the system have access to the JAAS logins configured at the global level. The security runtime first checks for the JAAS logins at the domain level. If it does not find them, it then checks for them in the global security configuration. Configure any of these JAAS logins at a domain only when you need to specify a login that is used exclusively by the applications in the security domain. So I am looking to make sure my application is in the domain, and I have tried everything I can think of. (I have assigned the domain to "all scopes", to the entire cell, etc.) No luck, I keep getting the same error response to my web service client. Any help or hints are appreciated.

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• How do I install OpenStack on a single Ubuntu 12.04 node?

  - by Sam Edwards

  I'm having trouble installing OpenStack in Ubuntu 12.04, for various reasons: The official Ubuntu website recommends Juju and MAAS. However, this is a single node I am trying to get OpenStack installed on, and MAAS requires "two or more nodes" according to the docs. Additionally, I don't have any experience in MAAS and Juju and would rather stick to technologies I am more familiar with so that I can debug problems that arise. I have tried StackGeek but this fails because the node only has a single Ethernet port. The node does, however, have the second hard drive required for the nova storage. I have tried DevStack but cannot log into the dashboard. The login form appears fine, but as soon as I try to submit the page, my browser begins loading indefinitely. I have tried installing straight from packages, but I get an Internal Server Error in the dashboard upon trying to log in, with no helpful logs anywhere in sight to aid me in debugging the issue. Each of these attempts was with a fresh Ubuntu 12.04 LTS setup; I'm finding it really strange that no matter what I try, I cannot get OpenStack installed. Is this even a stable/mature project? Why am I encountering so many bugs?

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• SQL Server 2008 R2 transactional replication over VPN

  - by enashnash

  I'm having difficulty setting up replication over a VPN. I have a SQL Server 2008 R2, Enterprise Edition database on a Windows 2008 R2 Server. SQL Server is running on a non-standard port. I have set it up so that it is acting as its own distributor and have configured a publisher on this server. It is set as an updatable transational publication (yes, this is necessary). On this server, I have Routing and Remote Access enabled in order to be able to establish VPN connections. It is configured with a static IP address pool, of which the first in the range is always assigned to the server. I have assigned a test user a static address within this range (I don't know if this is necessary or not). All clients will be 2008 R2 versions, but could be SQL Express or standalone developer instances of the full product. I can establish a VPN connection from the client without problems and can see that the correct IP addresses are allocated. After connecting to the database to test that I can establish a connection, I realised that I needed to be able to connect to the database using the server name rather than an IP address - required for replication - which wouldn't work initially. I created an entry in the hosts file for the server on the client using the NETBIOS name of the server, and now I can connect to the server, from the client, using the SERVER\INSTANCE, PORT syntax, over the VPN. As it is the default instance on the server, I can also connect with simply SERVER, PORT syntax. After all that, I still get the following dreaded error: SQL Server replication requires the actual server name to make a connection to the server. Connections through a server alias, IP address, or any other alternate name are not supported. Specify the actual server name, 'SERVER\INSTANCE'. (Replication.Utilities). What have I missed? How do I get this to work? TIA

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• How can the little guys effectively learn and use puppet?

  - by drumfire

  Six months ago, in our not-for-profit project we decided to start migrating our system management to a Puppet controlled environment because we are expecting our number of servers to grow substantially between now and a year from now. Since the decision has been made our IT guys have become a bit too annoyed a bit too often. Their biggest objections are: "We're not programmers, we're sysadmins"; Modules are available online but many differ from one another; wheels are being reinvented too often, how do you decide which one fits the bill; Code in our repo is not transparent enough, to find how something works they have to recurse through manifests and modules they might have even written themselves a while ago; One new daemon requires writing a new module, conventions have to be similar to other modules, a difficult process; "Let's just run it and see how it works" Tons of hardly known 'extensions' in community modules: 'trocla', 'augeas', 'hiera'... how can our sysadmins keep track? I can see why a large organisation would dispatch their sysadmins to puppet courses to become puppet masters. But how would smaller players get to learn puppet to a professional level if they do not go to courses and basically learn it via their browser and editor?

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• Format CD-rom on Windows 7 that Windows 95 can read

  - by Joe Majsterski

  I pulled out my ancient Pentium 100Mhz running Windows 95 to play a game from 1996. This game has a critical bug in it that requires a patch. The problem is, the computer has no way to connect to the Internet or to the LAN. I tried burning a CD-rom on my Windows 7 PC to run on the Win95 PC, but it doesn't even recognize that there's a disc in the drive. I did some research, and apparently Windows 95 can't read UDF format. All the solutions recommend, of course, downloading a driver or fix or somesuch, which is my entire problem in the first place. I tried formatting the CD-rom on my Win7 PC, but all the format choices are versions of UDF. Is there a way to get Windows 7 to format in way that is compatible with Windows 95? EDIT: I think the problem may be that I only have CD-RWs. I think a regular CD-R might work, but I can't find any in the house. I'll see if I can scrounge one up and try that.

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• Can one config LDAP to accept auth from ssh-agent instead of from Kerberos?

  - by Alex North-Keys

  [This question is not about getting your LDAP password to authenticate you for SSH logins. We have that working just fine, thank you :-) ] Let's suppose you're on a Linux network (Ubuntu 11.10, slapd 2.4.23), and you need to write a set of utilities that will use ldapmodify, ldapadd, ldapdelete, and so on. You don't have Kerberos, and don't want to deal with its timeouts (most users don't know how to get around this), quirks, etc. This resolves the question to one of where else to get credentials to feed to LDAP, probably through GSSAPI - which technically doesn't require Kerberos despite its dominance there - or something like it. However, nearly everyone seems to have an SSH agent program, complete with its key cache. I'd really like an ssh-add to be sufficient to allow passwordless LDAP command use. Does anyone know of a project working on using the SSH agent as the source of authentication to LDAP? It might be through an ssh-aware GSSAPI layer, or some other trick I haven't thought of. But it would be wonderful for making LDAP effortless. Assuming I haven't just utterly missed a way to use ldapmodify and kin without having to type my LDAP passwords - using -x is NOT acceptable. At my site, the LDAP server only accepts ldaps connections, and requires authentication for modifying operations. Those are requirements, of course. Any ideas would be greatly appreciated. :-)

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• Citrix Access Gateway with Citrix Receiver

  - by vm370

  I'm currently using a Citrix Access Gateway with firmware 5.0.4 to provide access over an SSL-VPN to an isolated environment, which is connected to over the Citrix Access Gateway Client, which is delivered by the device by default. However we encountered different problems, e.g. that it's somehow not possible to get it out of the autostart (not registered as a service or in the autostart?!) and it killed the Cisco VPN Client, which is used in the company and unfortunately cannot be replaced. The Cisco client can also just be used again after a procedure with cleaning the registry from all CAG Client remains, which requires a lot of effort. Because of that, I'd like to check if there is an alternative to this client, since is this is a real pain... Unfortunately I couldn't find a way to use the Receiver with the CAG yet, but if you have any resources on how to build this workaround, I'd be very happy. Thanks a lot in advance UPDATE: If there are other alternatives I'd be even more happy, since using the Receiver would also mean that there is an issue with the ICA-Client, which is also used in our environments. From my experience, the Receiver and the ICA-Client are also no good friends...

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• CENTOS 6 - How to install php-mysql when php-common @remi is present?

  - by Multitut

  I am having troubles adding mysql support for my php installation, this installation was made using a ready to use-package that came with our VPS. This is my php.info: http://snake.quetzalcoatech.com/info.php I am trying to install php mysql using: yum install php-mysql And get this output: Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.serveraxis.net * extras: mirror.fdcservers.net * updates: bay.uchicago.edu Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package php-mysql.x86_64 0:5.3.3-14.el6_3 will be installed --> Processing Dependency: php-common = 5.3.3-14.el6_3 for package: php-mysql-5.3.3-14.el6_3.x86_64 --> Finished Dependency Resolution Error: Package: php-mysql-5.3.3-14.el6_3.x86_64 (updates) Requires: php-common = 5.3.3-14.el6_3 Installed: php-common-5.3.17-2.el6.remi.x86_64 (@remi) php-common = 5.3.17-2.el6.remi Available: php-common-5.3.3-3.el6_2.8.x86_64 (base) php-common = 5.3.3-3.el6_2.8 Available: php-common-5.3.3-14.el6_3.x86_64 (updates) php-common = 5.3.3-14.el6_3 You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest I am a noob using Linux, so could you tell me which command should I use to install a compatible php-mysql module? Thank you so much!

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• Hosting a javascript api file for third party sites the way sharethis, uservoice, analytics do it.

  - by Dayson

  I'm preparing to launch a service soon which will provide third party websites a widget. The widget requires my javascript file in the website's code. Exactly the same way services like analytics, uservoice, sharethis, getclicky, etc provide you with a javascript snippet to add to your page. Therefore, my javascript file is going to be hotlinked by tons of websites which possibly receive a lot of requests too. I need advice/opinions on the following aspects: What's the right location for hosting this file? Should I use a sub-domain for it? I was thinking of something like http://api.myservice.com/js/foo.js . Remember, once websites start embedding this file, its location CANNOT change under any circumstances. Right now we can afford just one dedicated server. So I have minified my file, enabled gzip and plan to use some good cache control headers through apache. Also, in the near future when the requests pickup, I will use a http proxy like Varnish. Is this a good plan for the near future? Should I be considering a CDN in the future (since we can't afford it now)? If so how do I make sure we're prepared to migrate to it without breaking services. Pros/Cons of moving just this file to a CDN? Also, since its just one javascript file(50kb), any affordable CDN so we could consider it in the beginning itself? Any other word of advice I could use? Anything I shouldn't overlook at this stage which I would regret later? (both in terms of server + javascript ajax limitations) Thanks in advance.

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• Error opening hyperlinks in Excel 2003

  - by richardtallent

  When clicking to follow hyperlinks from Excel, I'm now getting this error: Unable to open http://blah... Cannot download the information you requested. The hyperlinks in the Excel file are created using the HYPERLINK() formula. I use Google Chrome as my default browser. The web site in question uses Basic Authentication, and I've entered correct credentials when prompted (the dialog looked like an IE auth box, not Chrome's, but it's always been that way, even when it was working properly). This hasn't been an issue until recently. I'm guessing our IT department made some lame change to IE's configuration that is causing Office to not be able to open the URLs, despite having Chrome as my browser. Things I've checked already: URLs are good, they work fine when pasted manually into Chrome, IE, or Firefox. IE is not set to Work Offline (already found that suggestion on Google). I checked Program Access and Defaults and verified that Chrome is selected. Nothing in the URL requires URLEncoding, so it's no goofy issue with encoding I've had reports from some other users now and then about the same problem, but this is the first time I've experienced it myself.

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• Windows Server (SBS) 2008 - Telephony service won't start (missing permissions)

  - by Uri

  I am running a SBS 2008 server. It's setup as the domain controller for the network. After a reboot, the Telephony service (and all services that depend on it) refuses to start under the Network Service account. The error given is: Error 1297: A privilege that the service requires to function properly does not exist in the service account configuration. You may use the Services Microsoft Management Console (MMC) snap-in (services.msc) and the Local Security Settings MMC snap-in (secpol.msc) to view the service configuration and the account configuration. This has caused all the network services not to be accessible e.g. terminal services, VPN (RRAS), SQL Server instances. The SSH daemon I have running on the box will accept connections only from localhost, but won't respond on the network. After searching around, the only advice I could find was to grant the Network Service account these permissions: Adjust memory quotas for a process Replace a process level token I set those permissions on both the Default Domain Policy and the Default Domain Controller Policy, but it seemingly had no effect. Most of the services will start if I change them to run under the Local System account, but that didn't make them accessible on the network. I even tried removing the Routing and Remote Access Services feature, rebooting and reinstalling it, but the issue remains. Any ideas?

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• Mounting 2.5" SSD in Antec Atlas 550's 3.5" bay

  - by cecilkorik

  Just got some new SSDs to add to my servers, unfortunately there doesn't appear to be anywhere to actually mount them. The cases are Antec Atlas 550 mid-tower server cases. The problem is that the 3.5" bays are intended for 3.5" hard drives (obviously) not SSDs, so they are mounted from the bottom with rubber grommets to reduce vibration. There are NO side-holes in any of the 3.5" bays, all mounting has to be done from the bottom of the drive, through the thick rubber grommets, which requires special extra-long screws with large heads. Those screws will not work with the SSD, the thread is too coarse, 2.5" drives apparently use M3 screws with a finer pitch. The case's 3.5" bays have holes aligned for 2.5" drives and by moving the grommets into the appropriate holes they line up with the SSD. But that's as far as I can get. I don't have and cannot find any screws that use the finer M3 pitch that are long enough and have the wide head. I can't remove the grommets because the screw holes are much too wide without them, the entire head of the screw fits through. And again, there are no side-holes, so I can't use the mounting bracket that came with the drive nor any other 2.5"-3.5" bracket I've found. Here is a pic of what I am dealing with (note that the SSD is just resting on the case, it's not currently screwed in if that's not clear) Any ideas for safely mounting these little guys without resorting to duct tape or superglue would be very appreciated. If anyone knows where I could buy the appropriate type of M3 threaded screw or has any other ideas please help me out here.

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• Installing ubuntu 12.04, installs but does not boot after it asks me to remove the CD

  - by Randnum

  I'm Trying to install Ubuntu 12.04 on my computer. It had an old copy of Windows 7 on it I tried to reformat the hard drive for a fresh install of Ubuntu but I think I messed up the partitions in some way that prevents it from fully loading. I'm able to complete the install fine and use guided partitioning so it should be happy but when it gets about 90% through at the part that ejects the cd and restarts the system it fails. After ejecting the CD and restarting it just loads up the bios lenovo splash screen then purple then black. I can hear a sound from my speakers like some notification sound but there is no text on my screen. I've since gone back in under Rescue System to try and reconfigure the partitions hoping that it will fix it and i've tried several combinations. Currently it's SCST1 (0,0,0) (sda) - 500.1 GB ATA WDC WD5000AAkKX-0 #1 100.0 MB K biosgrub #2 494.1 GB B K ext4 / #3 5.9 GB F swap swap 8.2 kb FREE SPACE I'm not sure if I need to set the ext4 to contain the boot flag but if I don't include at least one partition with the boot flag enabled it complains saying that "The partition table format in use on your disks normally requires you to create a separate partition for boot loader code. This partitionshould be marked for use as an "EFI boot Partition" and should be at least 35 MB in size. Note that this is not hte same as a partition mounted on /boot" Like I said it seems to have installed all of the actual data from the CD it's just not properly booting for some reason

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• pure-ftpd not listening on specified port

  - by Jason McLaren

  I installed the pure-ftpd package (version 1.0.35-1) on an Ubuntu 12.04 box (an EC2 instance based on the standard Ubuntu 12.04 AMI). The pure-ftpd daemon is running (verified with ps), though there is no PID file (expected one to be created by the /etc/init.d/pure-ftpd script). Here's the resulting command that gets run by the init.d script: /usr/sbin/pure-ftpd -l pam -O clf:/var/log/pure-ftpd/transfer.log -o -8 UTF-8 -u 1000 -E -B -g /var/run/pure-ftpd/pure-ftpd.pid Here's my real problem: the ftp server isn't actually listening on any port (checked with netstat and nmap). So I can't ftp to the server (either locally using localhost or remotely using the public IP address). I tried adding a Bind file to /etc/pure-ftpd/conf and restarting, but it didn't help. When I installed pure-ftpd, it replaced inetd with openbsd-inetd, but did not run it since there were no services enabled. So inetd is not listening on port 21 either. (Apparently Ubuntu has a no-inetd-by-default policy, according to https://lists.ubuntu.com/archives/ubuntu-users/2010-September/227905.html .) I want to run pure-ftpd by itself (not with inetd) anyways, since the /etc/init.d/pure-ftpd script requires no inetd if you use the UploadScript feature. I'm not familiar with how Ubuntu handles network services (and can't find any relevant docs besides generic man pages), so I'm probably missing something obvious. Nothing seems out of the ordinary with /etc/hosts.allow (empty) or hosts.deny (empty), and I didn't add any firewall rules (iptables -L shows that the firewall is in its initial state). I've checked the pure-ftpd docs; not sure what else to look at. Any help would be appreciated, thanks!

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• Node.js, Nginx and Varnish with WebSockets

  - by Joe S

  I'm in the process of architecting the backend of a new Node.js web app that i'd like to be pretty scalable, but not overkill. In all of my previous Node.js deployments, I have used Nginx to serve static assets such as JS/CSS and reverse proxy to Node (As i've heard Nginx does a much better job of this / express is not really production ready). However, Nginx does not support WebSockets. I am making extensive use of Socket.IO for the first time and discovered many articles detailing this limitation. Most of them suggest using Varnish to direct the WebSockets traffic directly to node, bypassing Nginx. This is my current setup: Varnish : Port 80 - Routing HTTP requests to Nginx and WebSockets directly to node Nginx : Port 8080 - Serving Static Assets like CSS/JS Node.js Express: Port 3000 - Serving the App, over HTTP + WebSockets However, there is now the added complexity that Varnish doesn't support HTTPS, which requires Stunnel or some other solution, it's also not load balanced yet (Perhaps i will use HAProxy or something). The complexity is stacking up! I would like to keep things simpler than this if possible. Is it still necessary to reverse proxy Node.js using Nginx when Varnish is also present? As even if express is slow at serving static files, they should theoretically be cached by Varnish. Or are there better ways to implement this?

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• What's hogging my CPU?

  - by endolith

  Ubuntu's System Monitor applet shows 100% CPU usage continuously. If I click it, the resources tab shows it at 100% continuously, too. If I go to processes, though, to find out which process is the culprit, there is nothing above 10%. If I run top there is nothing above 10%. I try killing lots of things, but it continues at 100%. How can I find out what's hogging the CPU? This is an unusual situation on a computer I use daily, that normally only hits 100% CPU when I'm doing something that requires it (like loading 32 Firefox tabs) after which it goes back to a normal idle level. It's not a new install or anything. It shouldn't be maxed out. I'm not sure when it started or if I changed something that caused it to happen. Normally I would use top or System Monitor and find the process that had gone out of control, but I can't find anything with those tools this time. It persists after reboots and everything. And the processor is obviously hot, so it's not an erroneous reading. Update: I tried killing any process I saw active again, and killing vino-server finally fixed the problem, even though it never went above 5%. I had enabled Remote Desktop a few days ago (and have obviously now disabled it). How did it manage to use 100% CPU while top only showed it as 5% or so? How do I identify the culprit in the future? Looks like I'm not the only one: Still a problem in both jaunty & karmic. Interestingly, both System Monitor & htop do not show the sum of individual processes being anywhere near 100% cpu.

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• How often is CRL refreshed, and how to force it to be?

  - by lockstock

  I have a web service running under IIS 7 that requires an X509 client certificate. I know that the server that it rus on needs access to DigiCert.com in order to be able to get the CRL (Certificate Revocation List). There is a need to change our proxy so I am attempting to investigate the impact of doing so. I have removed the global proxy settings using the command netsh winhttp proxy refesh, and also deleted the CRL cache using the command certutil -URLcache CRL delete. However, after doing this, all calls to the web service still succeed. This suggests to me that I am missing something here. So; If the CRL cache is cleared and the server has no way of refreshing the CRL, why do web service requets not return http 403?. I have been unable to find adequate information from googling nor from my colleagues. The reason I want it to fail is that I will not be confident that the new proxy settings work until I can see it broken first, if that makes sense. I would also like to be able to force the CRL to be refeshed in order to ensure that the new proxy settings work

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