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• 4in6 tunneling (via OpenVPN?)

  - by Deshene

  I have a local network with internet access. But unfortunately IPv4 internet connection speed is limited to 1mbps, which is realy sad. Fortunately I have a native IPv6, and there is no connection speed limit over IPv6. So, in order to get a good internet connection I made a plan: connect to the VPN-service over IPv6, and pass all IPv4 traffic through IPv6 tunnel, or something like that, I think you get the idea. I suggested to use service like HideMyAss.com, but unfortunately they don't support IPv6. The question is: Is there any existing VPN service that will make my dreams come true, and is easy to use, which I could connect over PPTP or OpenVPN (I want to set up connection to VPN in my router settings). Edit: It seems like there are couple of VPN services that supports IPv6 (it's odd, but the biggest VPN services support only IPv4), and there is none providing 4in6 tunnels. So, I came to the following solution: rent a VPS with IPv6 address, and manually setup 4in6 tunnel. I'm not good at networking, never did things like that, and don't know where to start, and what should I do. The use case, as I undestand, should look like this: I connect from my home computer to the VPS via OpenVPN, and after that all my IPv4 traffic pass through IPv6 (server do the job). OpenVPN - because I want to configure VPN connection to server in my router (Asus RT-N16?). How can I achieve this?

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• How to completely disable Mysqli

  - by Boon

  It seems the new hacker tool refref has been launched, and apparently it abuses a bug in the mysqli extension. Now I do not use mysqli at all for my websites, so i thought the best way to fight off this refref tool was to completely disable mysqli. These are the settings i have set in my php.ini. Is there a way I can disable mysqli completely with having to recompile PHP? ;extension=php_mysqli.dll [MySQLi] mysqli.max_persistent = -1 ;mysqli.allow_local_infile = On mysqli.allow_persistent = On mysqli.max_links = -1 mysqli.cache_size = 2000 mysqli.default_port = 3306 mysqli.default_socket = mysqli.default_host = mysqli.default_user = mysqli.default_pw = mysqli.reconnect = Off

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• Group policy waited for the network subsystem

  - by the-wabbit

  In an AD domain with Windows Server 2008 R2 DCs users are complaining about delays in the bootup process of the clients. The group policy log reveals that the client is waiting ~ 20-50 seconds for "the network subsystem": Event 5322, GroupPolicy Group policy waited for 29687 milliseconds for the network subsystem at computer boot. This appears to be domain-specific as machines joining a different domain from the same network do not experience any delays and Event 5322 reports <1000 ms wait times at startup. It happens on virtual and physical machines alike, so it does not look like a hardware- or driver-related issue. Further investigation has shown that the client is taking its time before issuing DHCP requests. In the network traces, I can see IPv6 router solicitations and multicast DNS name registrations as soon as the network driver is loaded and the network connection is reported "up" in the event log (e1cexpress/36). Yet, the DHCPv4 client service seems to take another 15-50 seconds to start (Dhcp-Client/50036), so the IPv4 address remains unconfigured for a while. The DHCP client's messages in the event log are succeeding the service start of the "Sophos Anti-Virus" service (Sophos AV 10.3 package), which I suspect to be the culprit - the DHCP client service dependencies include the TDI Support driver which might be what Sophos is using to intercept network traffic: Network Location Awareness seems to break at startup as a side-effect, I see that off-site DCs are contacted due to what seems like a race condition between the GP client and the DHCP client / NLA service startup. I could set the Group Policy Client service to depend on NLA, yet this still would not eliminate the delay. Also, I am not all that sure that this is a good idea. Is there a known resolution which would eliminate the startup delay?

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• Unable to install ffmpeg-php

  - by matt_tm

  Hi, I followed the instructions on http://www.mysql-apache-php.com/ffmpeg-install.htm but ffmpeg-php does not show up in my phpinfo() The commands I ran (in order) #yum install ffmpeg ffmpeg-devel ... Public key for faac-1.26-1.el5.rf.x86_64.rpm is not installed #rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el5.rf.i386.rpm ... 1:rpmforge-release ########################################### [100%] #yum install ffmpeg ... Complete! #wget http://space.dl.sourceforge.net/project/ffmpeg-php/ffmpeg-php/0.6.0/ffmpeg-php-0.6.0.tbz2 ... #tar -xjf ffmpeg-php-0.6.0.tbz2 #cd ffmpeg-php-0.6.0 #phpize ... configure: error: ffmpeg headers not found. Make sure ffmpeg is compiled as shared libraries using the --enable-shared option #yum install ffmpeg-devel ... Complete! #./configure ... config.status: creating config.h #make ... Build complete. Don't forget to run 'make test'. #make install Installing shared extensions: /usr/local/lib/php/extensions/no-debug-non-zts-20090626/ #ls -al /usr/local/lib/php/extensions/no-debug-non-zts-20090626/ ... -rwxr-xr-x 1 root root 185285 Sep 20 03:36 ffmpeg.so* ... #nano /usr/local/lib/php.ini In which I put these two lines at the end of the php.ini file [ffmpeg] extension=ffmpeg.so Then, #service httpd restart But phpinfo() still does not show any 'ffmpeg' section. This is the correct php.ini because: #php -i | grep php\.ini Configuration File (php.ini) Path => /usr/local/lib Loaded Configuration File => /usr/local/lib/php.ini

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• swapping or trashing with vast amounts of unmapped pagecache

  - by Marco

  I'm using kubuntu jaunty (i386 32bit), kernel 2.6.28-13-generic. I've 4Gb of RAM, of which only 3317Mb are seen by the system (I guess because of the 32bit system). I'm seeing that the pagecache utilization is continually growing, up to the point that the system is unusable (after a few days). This happens also when I don't do anything (all user applications closed and the bare minimum of services enabled). If enabled, the system starts to use swap space (using it all in the end). Even if swap is disabled, disk activity becomes continuous, with the system unresponsive. For example, right now the system is working (albeit a tad slow), with only firefox and wing ide running, and I have 2Gb cached with only 45Mb mapped: $ free total used free shared buffers cached Mem: 3346388 3247328 99060 0 8416 2117980 -/+ buffers/cache: 1120932 2225456 Swap: 2144668 519448 1625220 $ cat /proc/meminfo MemTotal: 3346388 kB MemFree: 97128 kB Buffers: 7872 kB Cached: 2120224 kB SwapCached: 413860 kB Active: 2304596 kB Inactive: 865984 kB Active(anon): 2279168 kB Inactive(anon): 830236 kB Active(file): 25428 kB Inactive(file): 35748 kB Unevictable: 32 kB Mlocked: 32 kB HighTotal: 2492940 kB HighFree: 5456 kB LowTotal: 853448 kB LowFree: 91672 kB SwapTotal: 2144668 kB SwapFree: 1625244 kB Dirty: 84 kB Writeback: 0 kB AnonPages: 629304 kB Mapped: 45768 kB Slab: 45600 kB SReclaimable: 21756 kB SUnreclaim: 23844 kB PageTables: 4468 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 3817860 kB Committed_AS: 3735020 kB VmallocTotal: 122880 kB VmallocUsed: 9352 kB VmallocChunk: 66600 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 4096 kB DirectMap4k: 16376 kB DirectMap4M: 888832 kB If I try to drop the caches, little happes: # sync ; echo 3 > /proc/sys/vm/drop_caches ; free total used free shared buffers cached Mem: 3346388 3220580 125808 0 3020 2100600 -/+ buffers/cache: 1116960 2229428 Swap: 2144668 519356 1625312 Right now I've vm.swappiness = 5, but I've tried also with 0 and 1 (without noticeable differences). I've also tried vm.vfs_cache_pressure = 50 and 150 (again, no differences). As I said the pagecache eats all memory even with swapping turned off. What is happening? How to avoid this? TIA, Marco

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• Bind an ip address to Postfix as outgoing ip

  - by jack

  Is that possible to bind all available public ip addresses on a server to one Postfix instance as its outgoing ip pool and let it choose a random ip or specified ip from the pool each time it sends out an email? If above is not possible, can it be configured to listen on one public ip address per instance and each time it delivers a message, it use the binded one as outgoing ip address.

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• VMWare Workstation hdd issue

  - by Arnis L.

  When i run my virtual machine, it clogs down my hard disc and OS freezes. What can cause this? P.s. feel free to ask for additional info. I just don't know what exactly i should state.

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• Dell Perc 6i with FreeBSD 8.1 errors with mfi0: COMMAND xxxxxxxx TIMEOUT AFTER xxx SECONDS

  - by jDempster

  We've recently bought two Dell PowerEdge R710 servers with Perc 6i controllers and 6x 135GB SAS Drives. We'd done some pretty extensive testing on a Dell PowerEdge R510 server with a Perc 6i and 4x 135GB SAS Drives running FreeBSD 8.1 for it's wonderful ZFS support and mfiutil. We hadn't had any problems with the R510 and had got to a point where we where happy with the performance of ZFS. Since running FreeBSD 8.1 on the R710 we've been getting errors from the RAID controller. mfi0: COMMAND 0xffffff80005d1770 TIMEOUT AFTER 6178 SECONDS This usually brings the system to a stand still. But it doesn't always happen, and performs very well up until it does happen. We've been running the disk as 3 mirrored drives striped in ZFS. So far we've noticed that running the drives with RAID10 on the RAID seems to work without errors (still testing). At first I thought hardware error as we'd been running FreeBSD on the R510 with the same controller without any issues. But both R710 have the same issue. All controllers are running the same firmware.

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• Roaming user profile issues on Server 2008

  - by Alicia White

  I thought I cleared a user's profile from 2008, but it keeps coming back. So, I was looking for the best way to clear a roaming profile in Server 2008, but I have been unable to find anything. But, I did see the post here: http://serverfault.com/questions/18724/user-profile-keeps-loading-temp-profile I wanted to add a comment to that post, but it was closed as not being related to sysadmin. But, I think it IS related because I dealt with precisely this same problem on our Wndows 2008 terminal server. Here was the issue: we have a user who was getting an "unable to load your roaming profile" type of error at logon in Windows 2008. Looking at the server, we could see her temp profile listed in the profile list while she was loggged (listed as a "temporary" and not a "roaming" profile). While she was logged on, a folder called C:\Users\Temp.DOMAIN existed in the users folder, but that disappeared as soon as she logged out. When this thing happened in 2003, we would clear the contents of the roaming profile folder & delete the temp folder in C:\Documents and Settings. The thing is, 2008 behaves a bit differently. Server 2008 created a new roaming profile folder in the roaming profile folder share: \SERVER\ProfileShare\UserName.V2 The local profile disappears from the profile list in System Properties, so there is no profile to clear Also the local profile folder, C:\Users\Temp.DOMAIN doesn't stay on the server when the user logs out, so we can't delete that as we would normally do when this sort of thing happens in Windows 2003 Despite all of this, every time the user logs back on, the frickin' Temp profile always comes back. One of my team-mates, who is much more experienced with 2008, said I should check the registry for the user's profile in this key (the users are listed by SID): HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\ProfileList I saw the user's SID listed there, but it ended in .BAK. I checked several other servers where she is having the same profile errors: in all cases, her SID ended with .BAK. For example (xxx replacing the LONG SID): HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-xxxxx-xxxx.bak On the server she was logged on to, there were two keys for her profile in the registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-xxxxx-xxxx and HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21-xxxxx-xxxx.bak So, here is how I cleared up the issue. I had the user log off. I deleted the apparently bad profiles ending in .BAK from the ProfileList key on each server where it appeared. I made sure her roaming profile folder was empty I made sure that all the TEMP profile folders were gone The user logged back on: no more profile errors! Anyway, I wanted to make a comment on that closed question, but I didn't see any way to re-open the question so I could add it. But, I also would like to know if this is the best practice to clear out a bad roaming profile for Server 2008? I'm having a hard time finding any instructions on line on how best to do this, but this method I used seemed to work. I'd like to find some documentation to give to our Level 1 support staff so they will know how to clear user profiles on 2008 since this seems to be more involved that clearing user profiles in server 2003. Thanks, Alicia

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• Disable gdm in Ubuntu 10.04?

  - by Nick Brooks

  The new Ubuntu features a completely unkillable gdm. Is there a way to disable it? It is not enabled in services , the gdm startup script is deleted , it is removed from 'update.rc' but it still starts up. How do I disable GDM and Graphical User Selection?

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• Unable to setup postgres on ubuntu (8.4 on 9.10)

  - by shabda

  I am trying to setup postgres on ubuntu, and I cant proceed as I cant find the location of pg_hba.conf (Postgres 8.4 on ubuntu 9.10) What I did setup postgres via aptitude This gave me ... /usr/share/postgresql/8.4# aptitude install postgresql Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done The following NEW packages will be installed: libreadline5{a} postgresql postgresql-8.4{a} postgresql-client-8.4{a} postgresql-client-common{a} postgresql-common{a} 0 packages upgraded, 6 newly installed, 0 to remove and 0 not upgraded. Need to get 0B/5,159kB of archives. After unpacking 18.8MB will be used. Do you want to continue? [Y/n/?] Y Writing extended state information... Done Preconfiguring packages ... Selecting previously deselected package libreadline5. (Reading database ... 17490 files and directories currently installed.) Unpacking libreadline5 (from .../libreadline5_5.2-6_amd64.deb) ... Selecting previously deselected package postgresql-client-common. Unpacking postgresql-client-common (from .../postgresql-client-common_101_all.deb) ... Selecting previously deselected package postgresql-client-8.4. Unpacking postgresql-client-8.4 (from .../postgresql-client-8.4_8.4.1-1_amd64.deb) ... Selecting previously deselected package postgresql-common. Unpacking postgresql-common (from .../postgresql-common_101_all.deb) ... Selecting previously deselected package postgresql-8.4. Unpacking postgresql-8.4 (from .../postgresql-8.4_8.4.1-1_amd64.deb) ... Selecting previously deselected package postgresql. Unpacking postgresql (from .../postgresql_8.4.1-1_all.deb) ... Processing triggers for man-db ... Setting up libreadline5 (5.2-6) ... Setting up postgresql-client-common (101) ... Setting up postgresql-client-8.4 (8.4.1-1) ... update-alternatives: using /usr/share/postgresql/8.4/man/man1/psql.1.gz to provide /usr/share/man/man1/psql.1.gz (psql.1.gz) in auto mode. Setting up postgresql-common (101) ... Setting up postgresql-8.4 (8.4.1-1) ... update-alternatives: using /usr/share/postgresql/8.4/man/man1/postmaster.1.gz to provide /usr/share/man/man1/postmaster.1.gz (postmaster.1.gz) in auto mode. Setting up postgresql (8.4.1-1) ... Processing triggers for libc-bin ... ldconfig deferred processing now taking place Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done Writing extended state information... Done tried to login as su - postgres Followed by createdb mytestdb This failed with could not connect to database postgres: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"? So I though I need to enable local connections in pg_hba.conf, which I cant find. So I created a new file as sudo vim /etc/postgresql/8.4/main/pg_hba.conf With values local all all ident But I still cant login after restarting the service. What are next steps for me to take.

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• w2k3 chkdsk errors as vmware 1.8 guest

  - by Sean Kirkpatrick

  We have two Dell servers (CentOS 5.x) hosting a variety of VMs including 3 W2K3 and 1 W2K servers as guests as well as a handful of other Linux guests. Each Windows VM has 2 drives, C: and D:. on 2 of the W2K3 and the W2K boxes we have recurring errors appearing on a daily basis as reported by CHKDSK. We'll run CHKDSK /f and reboot all affected machines and the errors are reported as fixed. The next day CHKDSK will report the same errors. None of the linux guests nor either host report errors when the are rebooted. The RAID controllers are not reporting errors. We're beginning to think that these are phantom errors somehow, but I'm not willing to go to the bank on that just yet. Anybody have similar experiences or advice? Thanks! Sean

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• Backup and Restore ADAM database

  - by kuoson

  I was trying to backup and restore an ADAM database to a different server the other day. I copied all files under "Program Files/Microsoft ADAM" folder to the same path in the destination server and started the ADAM service in the destination server up. Although the service come back up successfully and I was able to connect to the instance with ADAM ADSI Edit mmc snap-in, I found I had to reset every single user's password before they can login again. Has anyone got this issue before? Is the password encrypted with the server IP address or something like that?

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• Windows server reboot loop - uninstalling hotfixes

  - by Jack

  After installing 3 updates, my system is stuck in a reboot loop. I am using server 2008 r2. I have tried deleting pending.xml from the windows directory, so pelase don't suggest that. I tried dism /image:d:\ /cleanup-image /revertpendingactions which completed successfully but did not solve my issue I then tried: dism /image:d:\ /Remove-Package /PackageName: and sucusfully removed one of the 3 updates. The two updates that are left are not listed with the dism get-packages command, but are listed with the get-apppatches command. I cannot find a way to uninstall them with dism however. So my question is, how can I manually uninstall specific updates or hotfixes from within the winre environment?

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• certutil -ping fails with 30 seconds timeout - what to do?

  - by mark

  The certificate store on my Win7 box is constantly hanging. Observe: C:\1.cmd C:\certutil -? | findstr /i ping -ping -- Ping Active Directory Certificate Services Request interface -pingadmin -- Ping Active Directory Certificate Services Admin interface C:\set PROMPT=$P($t)$G C:\(13:04:28.57)certutil -ping CertUtil: -ping command FAILED: 0x80070002 (WIN32: 2) CertUtil: The system cannot find the file specified. C:\(13:04:58.68)certutil -pingadmin CertUtil: -pingadmin command FAILED: 0x80070002 (WIN32: 2) CertUtil: The system cannot find the file specified. C:\(13:05:28.79)set PROMPT=$P$G C:\ Explanations: The first command shows you that there are –ping and –pingadmin parameters to certutil Trying any ping parameter fails with 30 seconds timeout (the current time is seen in the prompt) This is a serious problem. It screws all the secure communication in my app. If anyone knows how this can be fixed - please share. Thanks. P.S. 1.cmd is simply a batch of these commands: certutil -? | findstr /i ping set PROMPT=$P($t)$G certutil -ping certutil -pingadmin set PROMPT=$P$G EDIT1 I have succeeded to pin down the single windows API that causes the problem - DsGetDcName According to the windbg, the certutil -ping invokes it like so: PDOMAIN_CONTROLLER_INFO pdci; DWORD ret = ::DsGetDcName(NULL, NULL, NULL, NULL, DS_DIRECTORY_SERVICE_PREFERRED, &pdci); On my workstation it times out for 30 seconds and then returns error code 1355, which is ERROR_NO_SUCH_DOMAIN No domain controller is available for the specified domain or the domain does not exist. On another machine, which is accidentally a windows server 2003, it returns almost immediately with the correct domain controller name inside the returned DOMAIN_CONTROLLER_INFO structure. Now the question is what is missing on my workstation for that API to find the correct domain controller?

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• "Checksum failed" during Kerberos SSO

  - by Buddy Casino

  This is an error that occurs when a mod_auth_kerb protected webapp is being accessed, and I have no idea what the cause might be. Can anyone give hints as into which direction I should look? Thankful for any help! Search Subject for Kerberos V5 ACCEPT cred (HTTP/[email protected], sun.security.jgss.krb5.Krb5AcceptCredential) Found key for HTTP/[email protected](23) Entered Krb5Context.acceptSecContext with state=STATE_NEW >>> EType: sun.security.krb5.internal.crypto.ArcFourHmacEType Checksum failed ! 16:36:30,248 TP-Processor31 WARN [site.servlet.KerberosSessionSetupPrivilegedAction] Caught GSS Error GSSException: Failure unspecified at GSS-API level (Mechanism level: Checksum failed) at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:741) at sun.security.jgss.GSSContextImpl.acceptSecContext(GSSContextImpl.java:323) at sun.security.jgss.GSSContextImpl.acceptSecContext(GSSContextImpl.java:267) at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:741) at sun.security.jgss.GSSContextImpl.acceptSecContext(GSSContextImpl.java:323) at sun.security.jgss.GSSContextImpl.acceptSecContext(GSSContextImpl.java:267) at org.alfresco.web.site.servlet.KerberosSessionSetupPrivilegedAction.run(KerberosSessionSetupPrivilegedAction.java:95) at org.alfresco.web.site.servlet.KerberosSessionSetupPrivilegedAction.run(KerberosSessionSetupPrivilegedAction.java:44) at org.alfresco.web.site.servlet.KerberosSessionSetupPrivilegedAction.run(KerberosSessionSetupPrivilegedAction.java:44) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:337) at org.alfresco.web.site.servlet.SSOAuthenticationFilter.doKerberosLogon(SSOAuthenticationFilter.java:994) at org.alfresco.web.site.servlet.SSOAuthenticationFilter.doKerberosLogon(SSOAuthenticationFilter.java:994) at org.alfresco.web.site.servlet.SSOAuthenticationFilter.doFilter(SSOAuthenticationFilter.java:438) at org.alfresco.web.site.servlet.SSOAuthenticationFilter.doFilter(SSOAuthenticationFilter.java:438) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:774) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:896) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:662) Caused by: KrbException: Checksum failed at sun.security.krb5.internal.crypto.ArcFourHmacEType.decrypt(ArcFourHmacEType.java:85) at sun.security.krb5.internal.crypto.ArcFourHmacEType.decrypt(ArcFourHmacEType.java:77) at sun.security.krb5.EncryptedData.decrypt(EncryptedData.java:168) at sun.security.krb5.KrbApReq.authenticate(KrbApReq.java:268) at sun.security.krb5.KrbApReq.<init>(KrbApReq.java:134) at sun.security.jgss.krb5.InitSecContextToken.<init>(InitSecContextToken.java:79) at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:724) ... 24 more Caused by: java.security.GeneralSecurityException: Checksum failed at sun.security.krb5.internal.crypto.dk.ArcFourCrypto.decrypt(ArcFourCrypto.java:388) at sun.security.krb5.internal.crypto.ArcFourHmac.decrypt(ArcFourHmac.java:74) at sun.security.krb5.internal.crypto.ArcFourHmacEType.decrypt(ArcFourHmacEType.java:83) ... 30 more

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• Remote Desktop keeps asking me to accept a Certificate?

  - by Pure.Krome

  Hi folks, i'm using Remote Desktop on Windows 7 RC1, connecting to a Windows 2008 server. Everytime i start a connection, i get the following popup window :- The certificate problem makes sense - it was created from my own server, which is not an offical certificate authority. Sure. So I need to tell my machine that any certificate that comes from my server, can u please accept. So i View the certificate and install it. I let it determine the best place to install it. eg Unfortunately, every time i connect, i still get that popup question. So i tried to manually tell where to install it. I said to install it at eg. but still i get the warning question. So .. does anyone have any suggestions?

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• Transfer DNS zones from master to slave (MS DNS to BIND9)

  - by Bryan

  Hello, I have a problem with DNS servers. My master dns server runs on Microsoft DNS server and now I want to start slave DNS server on Linux Bind9. The problems is that master MS DNS server can't validate slave DNS server (bind9) and can't resolve FQDN. Maybe, I missed something... firewall, dns configuration and network looks like ok. And the second question is: How I can make full transfer of dns zones to slave dns server? from MS DNS to BIND9 Thanks in advance. Regards, Bryan

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• Can server 2008 session broker be used in a 2008 R2 terminal server farm

  - by niko

  i'm building a terminal server farm using two 2008 R2 terminal (remote desktop) servers but i do not have a third R2 server in my network for the session broker so i was wondering if i can use a 2008 server for the session broker. i would imagine that this would work but i wanted to ask if anyone knows for sure.

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• uploading php files into my root folder and sending spam

  - by Mustafa Oenal

  i do not understand how but someone is uploading a php file into the public_html directory of my CentOS 6 server like statisticsuQPo.php this php file gives me "linux10+cfcd208495d565ef66e7dff9f98764da" and it is sending spam mail's without end. i have remove the file maybe 10 times but i do got it back every day. how can i solve this problem? is there anything wrong with my apache configuration?

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• how to drop_caches in OpenVZ centos6 container

  - by Omar Jackman

  I have tried sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches' sudo echo 3 > /proc/sys/vm/drop_caches echo 3 > /proc/sys/vm/drop_caches and a bunch of other variations but with every try I get bash: /proc/sys/vm/drop_caches: Permission denied How do I clear the ram used for buffers/cache in my centos6 openvz container? It seems like the only way to do what I need is to reboot the container.

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• NAT: Exposing SQL Server 2008 Express to the internet

  - by Yves

  Hi, I have a Windows Server 2003 SP2 machine with SQL Server 2008 Express installed. I have my network configured with a NAT. Internal clients can access the instance of SQL Server without a problem. I would like to enable SQL Server to be accessible from anywhere on the the internet. I am not sure how to allow my NAT firewall to allow that. I tried adding the port 1443 to it but I still can't access it from a remote machine. How can you make a given SQL Server available to the WAN? Any help would be greatly appreciated. Thank you

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• PHP-FPM and APC for shared hosting?

  - by Tiffany Walker

  We are looking into finding a way to get APC to only create one cache per account / site. This can be done with Fastcgi (last update 2006…) but with Fastcgid APC will have to create multiple caches for multiple processes run by the same account. To get around this problem, we have been looking into PHP-FPM PHP process manager allows multiple PHP processes to share a single APC cache. But from what I have read (I hope I'm wrong) , even if you create a pool per process, all sites accross all pools will share the same APC cache. This brings us back to the same problem as with shared Memcached: it's not secure ! On php-fpm's site I read that you can chroot php-fpm pools and define a specific UID and GID per pool… if this is the case then shouldn't APC have to use this user and not have access to other pools cache ? An article here (in 2011) suggests that you would need to run one process per pool creating multiple launchers on different ports and different config files with one pool per config file : http://groups.drupal.org/node/198168 Is this still neceessary ? If so what would be the impact of running say 800 processes of php-fpm ? Would it be mainly memory ? If so how can I work out what the memory impact would be ? I guess that it would be better to run 800 times php-fpm then to have accounts creating multiple APC caches for a single site ? If on average an account creates a 50MB cache and creates 3 caches per account that makes 150Mb per account which makes 120GB… However if each account uses on average only 50Mb that would make 40GB We will have at least 128GB of ram on our next server so 40GB is acceptable if running 800 x PHP-FPM does not create an overhead of more than 20GB ! What do you think is PHP-FPM the best way to go to provide secure APC cache on shared hosting with a server that has a decent amount of memory ? Or should I be looking at another system ? Thanks !

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• NetApp FAS 2040 LDAP Win2k8R2

  - by it_stuck

  I am trying to get my FAS2040 to action user lookups using LDAP, below is the filer configuration options: filer> options ldap ldap.ADdomain dc1.colour.domain.local ldap.base OU=Users,OU=something1,OU=something2,OU=darkside,DC=colour,DC=domain,DC=local ldap.base.group ldap.base.netgroup ldap.base.passwd ldap.enable on ldap.minimum_bind_level anonymous ldap.name domain-admin-account ldap.nssmap.attribute.gecos gecos ldap.nssmap.attribute.gidNumber gidNumber ldap.nssmap.attribute.groupname cn ldap.nssmap.attribute.homeDirectory homeDirectory ldap.nssmap.attribute.loginShell loginShell ldap.nssmap.attribute.memberNisNetgroup memberNisNetgroup ldap.nssmap.attribute.memberUid memberUid ldap.nssmap.attribute.netgroupname cn ldap.nssmap.attribute.nisNetgroupTriple nisNetgroupTriple ldap.nssmap.attribute.uid uid ldap.nssmap.attribute.uidNumber uidNumber ldap.nssmap.attribute.userPassword userPassword ldap.nssmap.objectClass.nisNetgroup nisNetgroup ldap.nssmap.objectClass.posixAccount posixAccount ldap.nssmap.objectClass.posixGroup posixGroup ldap.passwd ****** ldap.port 389 ldap.servers ldap.servers.preferred ldap.ssl.enable off ldap.timeout 20 ldap.usermap.attribute.unixaccount unixaccount ldap.usermap.attribute.windowsaccount sAMAccountName ldap.usermap.base ldap.usermap.enable on output of nsswitch.conf: hosts: files dns passwd: ldap files netgroup: ldap files group: ldap files shadow: files nis Error Message(s): [filer: auth.ldap.trace.LDAPConnection.statusMsg:info]: AUTH: TraceLDAPServer- Starting AD LDAP server address discovery for dc1.colour.domain.LOCAL. [filer: auth.ldap.trace.LDAPConnection.statusMsg:info]: AUTH: TraceLDAPServer- Found no AD LDAP server addresses using DNS site query (site). [filer: auth.ldap.trace.LDAPConnection.statusMsg:info]: AUTH: TraceLDAPServer- Found no AD LDAP server addresses using generic DNS query. Could not get passwd entry for name = <random user> the filer can ping the FQDN of dc1 the filer can ping the IP of dc1 the filer cannot ping "dc1" I'm not sure where I'm going wrong, so any pointers would be great.

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• Installing PHP4 on a Debian (lenny) 7 32bit box

  - by Asim

  I am trying to install PHP4 on a Debian 7 32bit box but I ran into the following root@php4:~# apt-get update Get:1 http://snapshot.debian.org lenny Release.gpg [189 B] Hit http://snapshot.debian.org lenny Release Ign http://snapshot.debian.org lenny Release Hit http://snapshot.debian.org lenny/main Sources/DiffIndex Hit http://snapshot.debian.org lenny/main i386 Packages/DiffIndex Hit http://ftp.us.debian.org wheezy Release.gpg Hit http://security.debian.org wheezy/updates Release.gpg Ign http://snapshot.debian.org lenny/main Translation-en_US Ign http://snapshot.debian.org lenny/main Translation-en Hit http://ftp.us.debian.org wheezy Release Hit http://security.debian.org wheezy/updates Release Hit http://ftp.us.debian.org wheezy/main i386 Packages Hit http://ftp.us.debian.org wheezy/main Translation-en Hit http://security.debian.org wheezy/updates/main i386 Packages Hit http://security.debian.org wheezy/updates/main Translation-en Fetched 189 B in 0s (229 B/s) Reading package lists... Done W: GPG error: http://snapshot.debian.org lenny Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A70DAF536070D3A1 I did the following to fix it gpg --keyserver hkp://subkeys.pgp.net --recv-keys A70DAF536070D3A1 gpg --export --armor A70DAF536070D3A1 | sudo apt-key add - Now I get the following KEYEXPIRED error and unsure how to fix. Even Google does not help root@php4:~# apt-get update Get:1 http://snapshot.debian.org lenny Release.gpg [189 B] Hit http://snapshot.debian.org lenny Release Ign http://snapshot.debian.org lenny Release Hit http://snapshot.debian.org lenny/main Sources/DiffIndex Hit http://security.debian.org wheezy/updates Release.gpg Hit http://snapshot.debian.org lenny/main i386 Packages/DiffIndex Hit http://ftp.us.debian.org wheezy Release.gpg Hit http://security.debian.org wheezy/updates Release Ign http://snapshot.debian.org lenny/main Translation-en_US Hit http://ftp.us.debian.org wheezy Release Hit http://security.debian.org wheezy/updates/main i386 Packages Ign http://snapshot.debian.org lenny/main Translation-en Hit http://ftp.us.debian.org wheezy/main i386 Packages Hit http://security.debian.org wheezy/updates/main Translation-en Hit http://ftp.us.debian.org wheezy/main Translation-en Fetched 189 B in 0s (275 B/s) Reading package lists... Done W: GPG error: http://snapshot.debian.org lenny Release: The following signatures were invalid: KEYEXPIRED 1246455239 Any help?

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