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• Child Folder inheriting a permission that parent folder does not have (NTFS)

  - by just.another.programmer

  I'm reconfiguring roaming profiles on my network to use proper NTFS security settings according to this article. I have reset the following permissions on the roaming profile parent folder: CREATOR OWNER, Full Control, Subfolder and files only User group with profiles, List folder, Create folders, This folder only System, Full Control, This folder, subfolders, and files Then I select one of the actual roaming profile folders and follow these steps to fix the NTFS settings: Click Security, Advanced Uncheck "Allow inheritable permissions..." Choose "Remove..." Recheck "Allow inheritable permissions..." Click "Apply" After I choose apply, I get the following permissions listed on the roaming profile folder: Administrators (MYDOMAIN\Administrators) Full Control, This folder only CREATOR OWNER, Full Control, Subfolders and files only System, Full Control, This folder, subfolders, and files Where is the Administrators entry coming from!? There is an entry on the root of the drive for Administrators to have full control, but the Roaming Profile Parent folder is not set to inherit any permissions, and it does not have the administrators permission.

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• Vanilla TeX Live 2009 on Ubuntu

  - by reprogrammer

  I installed TeX Live 2009 by following the instructions at http://www.tug.org/texlive/quickinstall. Then, to make my local TeX Live installation work with the Ubuntu package management system, I followed the instructions on http://www.tug.org/texlive/debian.html. That is, I performed the following steps. $ sudo aptitude install equivs $ mkdir /tmp/tl-equivs && cd /tmp/tl-equivs $ equivs-control texlive-local # I replaced the contents of texlive-local by http://www.tug.org/texlive/debian-control-ex.txt $ equivs-build texlive-local $ sudo dpkg -i texlive-local_2009-1~1_all.deb However, when I go about installing kile through the Ubuntu package management system, it requires me to install a lot of dependencies that are already provided by my texlive-local package. Does any one have a suggestion to fix this problem?

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• MS Access: Why can I no longer right-click to add a hyperlink?

  - by gef05

  I've been working in an MS Access system for a while now. It's a form system where users enter data, add links, contacts etc. Pretty simple. On the form is a hyperlink field. For months I could right-click the field, and from the popup context menu select Hyperlink Add a hyperlink (something like that). This would allow me to browse to a network location, select a folder, click okay, and have the path automatically added to the field. Then it stopped working. It works fine for everyrone else but not me. What's stranger, if I go to another machine and login, I get the functionality back. Any ideas?

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• upgraded to OSX 10.6.6 - now cannot sudo

  - by rahulk

  I've been using sudo until now. After an upgrade to 10.6.6, now sudo gives me incorrect password. My user has admin rights, and i can execute admin functions from the GUI (such as System Prefs, updating software etc). However, within Terminal, sudo has stopped accepting the password. I have repaired permissions and restarted. Some pointers ask me to use Directory Utility, but in this version it does not have a "set root user" option. I downloaded ServerAdminTool 10.5.7 but this does not work on my system. Some say to add myself to "wheel" group, but i need sudo for that. Some say if i am in admin group, i should be able to sudo, but this is not happening. (Using OS X Snow Leopard 10.6.6, earlier 10.5.8) MODERATOR: please delete this question. The issue had to do with Textpander expanding the password resulting in sudo failing. Not an OS upgrade issue.

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• Abnormal hangs and restarts Ubuntu 8.04

  - by jai-ho

  Hi, I am using Ubuntu 8.04 LTS and seeing the following behaviors: The system hangs after a while and becomes completely unresponsive. The system sometimes restarts itself ! Can you please help me identify what is the problem? Also please mention where should I look for the possible cause of this error. Thanks. EDIT: Got the following from the dmesg output (the system got hung and had to restart) [ 15.452015] Driver 'sr' needs updating - please use bus_type methods [ 15.456882] Driver 'sd' needs updating - please use bus_type methods [ 15.457987] sr0: scsi3-mmc drive: 52x/52x writer cd/rw xa/form2 cdda tray [ 15.457993] Uniform CD-ROM driver Revision: 3.20 [ 15.458058] sr 0:0:1:0: Attached scsi CD-ROM sr0 [ 15.463028] sd 1:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB) [ 15.463051] sd 1:0:0:0: [sda] Write Protect is off [ 15.463055] sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 15.463083] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 15.463151] sd 1:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB) [ 15.463167] sd 1:0:0:0: [sda] Write Protect is off [ 15.463171] sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 15.463197] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 15.463202] sda:<5sr 0:0:1:0: Attached scsi generic sg0 type 5 [ 15.464634] sd 1:0:0:0: Attached scsi generic sg1 type 0 [ 15.470120] sda1 sda2 < sda5 [ 15.495536] sd 1:0:0:0: [sda] Attached SCSI disk [ 15.759549] Attempting manual resume [ 15.759554] swsusp: Resume From Partition 8:5 [ 15.759556] PM: Checking swsusp image. [ 15.759742] PM: Resume from disk failed. [ 15.779964] EXT3-fs: INFO: recovery required on readonly filesystem. [ 15.779970] EXT3-fs: write access will be enabled during recovery. [ 19.904204] kjournald starting. Commit interval 5 seconds [ 19.904235] EXT3-fs: sda1: orphan cleanup on readonly fs [ 19.904245] ext3_orphan_cleanup: deleting unreferenced inode 303260 [ 19.904304] ext3_orphan_cleanup: deleting unreferenced inode 303329 [ 19.932763] ext3_orphan_cleanup: deleting unreferenced inode 3801871 [ 19.932785] ext3_orphan_cleanup: deleting unreferenced inode 3801874 [ 19.932798] ext3_orphan_cleanup: deleting unreferenced inode 3801910 [ 19.951253] ext3_orphan_cleanup: deleting unreferenced inode 3801912 [ 19.951266] ext3_orphan_cleanup: deleting unreferenced inode 3801914 [ 19.951278] ext3_orphan_cleanup: deleting unreferenced inode 3959212 [ 19.951299] ext3_orphan_cleanup: deleting unreferenced inode 3959213 [ 19.960335] ext3_orphan_cleanup: deleting unreferenced inode 3959215 [ 19.963531] ext3_orphan_cleanup: deleting unreferenced inode 3801875 [ 19.963545] ext3_orphan_cleanup: deleting unreferenced inode 3663727 [ 19.963565] ext3_orphan_cleanup: deleting unreferenced inode 3663708 [ 19.963577] ext3_orphan_cleanup: deleting unreferenced inode 4072122 [ 19.963597] ext3_orphan_cleanup: deleting unreferenced inode 4072157 [ 19.968616] ext3_orphan_cleanup: deleting unreferenced inode 4072159 [ 19.970252] ext3_orphan_cleanup: deleting unreferenced inode 4072160 [ 19.970264] ext3_orphan_cleanup: deleting unreferenced inode 4072161 [ 19.992889] ext3_orphan_cleanup: deleting unreferenced inode 4072264 [ 19.992903] ext3_orphan_cleanup: deleting unreferenced inode 4072267 [ 19.999585] ext3_orphan_cleanup: deleting unreferenced inode 4072268 [ 20.008329] ext3_orphan_cleanup: deleting unreferenced inode 4072270 [ 20.008343] ext3_orphan_cleanup: deleting unreferenced inode 4072123 [ 20.008360] ext3_orphan_cleanup: deleting unreferenced inode 4072452 [ 20.008374] ext3_orphan_cleanup: deleting unreferenced inode 4072453 [ 20.008385] ext3_orphan_cleanup: deleting unreferenced inode 4072124 [ 20.008398] ext3_orphan_cleanup: deleting unreferenced inode 311574 [ 20.008413] ext3_orphan_cleanup: deleting unreferenced inode 967890 [ 20.008420] EXT3-fs: sda1: 28 orphan inodes deleted [ 20.008423] EXT3-fs: recovery complete. [ 20.082622] EXT3-fs: mounted filesystem with ordered data mode. [ 29.025379] input: PC Speaker as /devices/platform/pcspkr/input/input2 [ 29.187133] Linux agpgart interface v0.102 [ 29.225338] iTCO_vendor_support: vendor-support=0 [ 29.259662] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.02 (26-Jul-2007)

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• Virtual guest does not have network access in cafe.

  - by blee

  My Virtualbox guest OS (Ubuntu on ubuntu host) does not connect to the internet when I have wifi access through an internet cafe system. By this, I mean where your browser redirects to an internal web page where you can enter a code. On the guest, I can successfully connect to the virtual network adapter, but I do not get internet access, nor a redirect to the internal web page. I use OpenDNS for the host. I have no problems when connecting through ethernet or regular wifi. Can someone tell me any of: 1) How to fix the problem. 2) How such cafe systems work. 3) At least point me to a technical explanation of such a cafe system so I can begin to troubleshoot. Thanks!

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• How does NTFS compression affect performance?

  - by DragonLord

  I've heard that NTFS compression can reduce performance due to extra CPU usage, but I've read reports that it may actually increase performance because of reduced disk reads. How exactly does NTFS compression affect system performance? Notes: I'm running a laptop with a 5400 RPM hard drive, and many of the things I do on it are I/O bound. The processor is a AMD Phenom II with four cores running at 2.0 GHz. The system is defragmented regularly using UltraDefrag. The workload is mixed read-write, with reads occurring somewhat more often than writes. The files to be compressed include personal documents and selected programs, including several (less demanding) games and Visual Studio (which tends to be I/O bound more often than not).

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• Best Processor for MediaSmart Server?

  - by Kent Boogaart

  I'm trying to figure out what the best possible processor is that I can stick in my HP MediaSmart server. I'm clueless when it comes to correlating CPUs to motherboards. I suspect it's the socket type I care about, but I worry that there's more to it. CPU-Z gives me (excerpt): Processors Information ------------------------------------------------------------------------- Processor 1 ID = 0 Number of cores 1 (max 1) Number of threads 1 (max 1) Name AMD Sempron LE-1150 Codename Sparta Specification AMD Sempron(tm) Processor LE-1150 Package Socket AM2 (940) CPUID F.F.1 Extended CPUID F.7F Brand ID 1 Core Stepping DH-G1 Technology 65 nm Core Speed 1000.0 MHz Multiplier x FSB 5.0 x 200.0 MHz HT Link speed 800.0 MHz Stock frequency 2000 MHz Instructions sets MMX (+), 3DNow! (+), SSE, SSE2, SSE3, x86-64 L1 Data cache 64 KBytes, 2-way set associative, 64-byte line size L1 Instruction cache 64 KBytes, 2-way set associative, 64-byte line size L2 cache 256 KBytes, 16-way set associative, 64-byte line size FID/VID Control yes Max FID 10.0x Max VID 1.350 V P-State FID 0x2 - VID 0x12 (5.0x - 1.100 V) P-State FID 0xA - VID 0x0C (9.0x - 1.250 V) P-State FID 0xC - VID 0x0A (10.0x - 1.300 V) K8 Thermal sensor yes K8 Revision ID 6.0 Attached device PCI device at bus 0, device 24, function 0 Attached device PCI device at bus 0, device 24, function 1 Attached device PCI device at bus 0, device 24, function 2 Attached device PCI device at bus 0, device 24, function 3 Chipset ------------------------------------------------------------------------- Northbridge SiS 761GX rev. 02 Southbridge SiS 966 rev. 59 Graphic Interface AGP AGP Revision 3.0 AGP Transfer Rate 8x AGP SBA supported, enabled Memory Type DDR2 Memory Size 2048 MBytes Channels Single Memory Frequency 200.0 MHz (CPU/5) CAS# latency (CL) 5.0 RAS# to CAS# delay (tRCD) 5 RAS# Precharge (tRP) 5 Cycle Time (tRAS) 15 Bank Cycle Time (tRC) 21 Command Rate (CR) 1T DMI ------------------------------------------------------------------------- DMI BIOS vendor Phoenix Technologies, LTD version R03 date 05/08/2008 DMI System Information manufacturer HP product MediaSmart Server version unknown serial CN68330DGH UUID A482007B-B0CC7593-DD11736A-407B7067 DMI Baseboard vendor Wistron model SJD4 revision A.0 serial unknown DMI System Enclosure manufacturer HP chassis type Desktop chassis serial unknown DMI Processor manufacturer AMD model AMD Sempron(tm) Processor LE-1150 clock speed 2000.0 MHz FSB speed 200.0 MHz multiplier 10.0x DMI Memory Controller correction 64-bit ECC Max module size 4096 MBytes DMI Memory Module designation A0 size 2048 MBytes (double bank) DMI Memory Module designation A1 DMI Memory Module designation A2 DMI Memory Module designation A3 DMI Port Connector designation PS/2 Mouse (internal) port type Mouse Port connector PS/2 connector PS/2 DMI Port Connector designation USB0 (external) port type USB DMI Physical Memory Array location Motherboard usage System Memory correction None max capacity 16384 MBytes max# of devices 4 DMI Memory Device designation A0 format DIMM type unknown total width 64 bits data width 64 bits size 2048 MBytes DMI Memory Device designation A1 format DIMM type unknown total width 64 bits data width 64 bits DMI Memory Device designation A2 format DIMM type unknown total width 64 bits data width 64 bits DMI Memory Device designation A3 format DIMM type unknown total width 64 bits data width 64 bits How do I figure out what options I have for an upgrade?

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• CentOS default never fsck root partition on start up?

  - by wwwpanda

  Most documentation or sites will say use "tune2fs -l " to check if the system will do fsck on the system partitions on next boot, in particular, should look at "Mount count" and "Maximum mount count" values. However, I notice for default CentOS 5 or 6 installation, when I check against the root partition, I always noticed something like this from tune2fs output: ... Mount count: 91 Maximum mount count: -1 Last checked: Thu Oct 29 18:48:14 2009 Check interval: 0 (<none>) ... i.e. the max. mount count is set to "-1". That makes me wonder does it mean CentOS (or Red Hat) won't check the root partition at all? I check the fstab, the last number for root partition is still "1" as usual. If the OS does fsck the root partition during startup, how can I tell when (i.e. after how many reboots or when) will the OS will start fsck the root parition during startup?

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• Virtual Box fails my OSes :(

  - by Kingston Town

  I have a little problem with Virtual Box latest version in which i have installed Mint (also latest version).During creation of a new vdi partition I chose settings as default, that is, I don't create any tiny partitions myself. The installation works. But later while the new OS is running (not in Live mode) I try installing/updating new software available, the system automatically fails, it reports an error of DISKFULL, I close the message box then power off my system. Later on I can't boot it up again anymore. It hangs with a black screen and the PAUSE status. I have no idea why. I have installed 2 OSes and both fail at the same error. I doubt something is not right about the current version of VBox. Thank you . My host OS is Windows7 and my Clients are Mint and CentOS

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• Innodb : cannot allocate the memory for the buffer pool

  - by mingyeow

  My innodb keeps crashing. This is the error message below. Does anyone know why this keeps happening? InnoDB: by InnoDB 49201616 bytes. Operating system errno: 12 InnoDB: Check if you should increase the swap file or InnoDB: ulimits of your operating system. InnoDB: On FreeBSD check you have compiled the OS with InnoDB: a big enough maximum process size. InnoDB: Note that in most 32-bit computers the process InnoDB: memory space is limited to 2 GB or 4 GB. InnoDB: We keep retrying the allocation for 60 seconds... 0 processes alive and '/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf ping' resulted in /usr/bin/mysqladmin: connect to server at 'localhost' failed error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists! InnoDB: Fatal error: cannot allocate the memory for the buffer pool [ERROR] Default storage engine (InnoDB) is not available

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• Installing Ubuntu to a USB drive

  - by Carl Smotricz

  I'm having a rough time getting Ubuntu to run from a 250 GB USB hard drive. I booted Ubuntu 9.10 from a CD and ran the regular "install" to the attached USB drive. I used the "advanced" option on the drive partition question to put the boot loader on /dev/sdb (the USB disk) but when I boot the machine it doesn't recognize there's a boot loader on the USB drive (it offers to boot from 2 other devices but not the USB disk). I also tried booting from the Ubuntu CD and using usb-creator-gtk to set up the USB drive. Seems to me this is meant to work with flash drives. I got a bootable USB disk but it looked and worked like the CD, i.e. it gave me options of "live CD" operation, installing, memtest, etc. That's not the way I want to run the system. Some help in installing Ubuntu, bootable into a "full" running system on my USB drive would be appreciated.

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• Difficulty in running Tomcat v7.0 with Eclipse Juno

  - by user1673718

  I get the following error when I run my JSP file in Eclipse-Juno with Tomcat v7: 'starting Tomcat v7.0 server at localhost' has encountered a problem. Port 8080 required by Tomcat v7.0 server at localhost is already in use. The server may already be running in another process, or a system process may be using the port. To start this server you will need to stop the other process or change the port number(s). I have Oracle 10g installed in my System. When I type "http://localhost:8080" it opens the Oracle 10g license agreement so I think Oracle 10g is already running in that port. To change the port of Tomcat I tried Google, which said to change the port in the "C:\Program Files\Apache Software Foundation\Apache Tomcat 7.0.14\conf\httpd.conf" file But at "C:\Program Files\Apache Software Foundation\Apache Tomcat 7.0.14\conf" there was no httpd.conf file. I only have "catalina.policy,catalina.properties,context,logging.properties,server,tomcat-users,web" files in that conf folder. I use windows XP.

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• two operating systems sharing their file systems with eachother (Windows and Linux)

  - by John Kube

  I have two operating systems installed on my notebook computer, Windows Vista and Ubuntu Linux. When I boot up, I'm presented with a bootloader which allows me to choose which one I want to load. I'm interested in sharing each operating system's file system with the other, such that I could access my Windows files from Linux and vice-versa. Is this possible, and if so how would one go about setting it up? Feel free to just post a link to an existing solution if there is one. I would Google for this myself, but I don't even know what to search for, as I don't know what this is called.

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• XP boot timer=> set, but does nothing?

  - by mark

  My PC has XP Pro and the boot.ini file looks like this: [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(2)\windows [operating systems] C:\CMDCONS\BOOTSECT.DAT="Microsoft Windows Recovery Console" /cmdcons multi(0)disk(0)rdisk(0)partition(2)\windows="eXPee Pro" /noexecute=optin /fastdetect Up until about a week ago it would just time-out and boot normally. I haven't made any hardware changes at all. Now, when the system boots it just sits there and waits for me to hit -enter-. I've searched all over for explanations & possible causes, but found nothing which seems to relate. Anyone here have any idea what may have caused the timer to simply quit working like that ? (BTW, the system clock works just as it ever did and keeps time precisely.) Thanks.

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• Which FLOSS text editor is most like kwrite without being KDE-based?

  - by darenw

  Among text editors on Linux, I usually prefer KWrite. I like that I can quickly turn on/off line numbers and line wrap in the View menu. Other settings are easy to change. Other text editors I've used in the past, such as Gnome's gedit, bury line numbering and wrapping checkboxes deeper into the menu system, making it more distracting to change while concentrating on real work. However, KWrite is a KDE app. On Ubuntu it drags in over a dozen other packages, which I suspect I don't really need. Why would a text editor need all that? It's slower to start up than some other editors I've tried. I'm also trying to run an all-gnome system w/o any KDE, just to see how far I get with it. So, what GUI text editor isn't KDE-based, has few dependencies and quick start-up, easy to change line wrap and numbering, and general similarity to KWrite? What comes closest?

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• off-the-shelf HDD in Dell Optiplex 755 - Invalid Replacement - Press F1 when rebooting

  - by Eric Liprandi

  I recently put an SSD into my work Optiplex 755. Since then, every time the system boots or reboots, I get prompted to hit F1 to continue with a message like HDD replacement is not valid. The system works just fine. What I am gathering from Dell's website is that I left the original drive internally as a data drive. And apparently the Optiplex does not support 2 drives in the configuration we purchased originally and complains. Any suggestions on how to get rid of this message? some suggested the MEBx or whatever from Intel and to turn it off, but I did not succeed earlier. It's not a big deal 80% of the time, but I regularly work from home and occasionally need to fire a reboot and well, you don't get the BIOS screen remotely :) Regards, Eric.

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• How to find out details about hardware on the Linux machine?

  - by Evgeny

  -i.e - how to get a full list of hardware components in command line (on a machine with no window system) Thank you.

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• is airtunes compatible with airsharing

  - by Mitch Robertson

  I have an Airport Express that I have plugged into a speaker system. I can change the music in my house with my iPhone through Apple's Remote app. Great. Now is my Airport Express compatible with Air Sharing? Can I 'push' music or sound to my Airport Express and out the speakers that are plugged into it? Or is this only possible with an Apple TV? And if I get an Apple TV can I do what I'm trying to do? 'Push' music from someone's iPhone that is on the same WIFI network as mine to a speaker system?

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• postfix error: open database /var/lib/mailman/data/aliases.db: No such file

  - by Thufir

  In trying to follow the Ubuntu guide for postfix and mailman, I do not understand these directions: This build of mailman runs as list. It must have permission to read /etc/aliases and read and write /var/lib/mailman/data/aliases. Do this with these commands: sudo chown root:list /var/lib/mailman/data/aliases sudo chown root:list /etc/aliases Save and run: sudo newaliases I'm getting this kind of error: root@dur:~# root@dur:~# root@dur:~# telnet localhost 25 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 220 dur.bounceme.net ESMTP Postfix (Ubuntu) ehlo dur 250-dur.bounceme.net 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN quit 221 2.0.0 Bye Connection closed by foreign host. root@dur:~# root@dur:~# tail /var/log/mail.log Aug 28 01:16:43 dur postfix/master[19444]: terminating on signal 15 Aug 28 01:16:43 dur postfix/postfix-script[19558]: starting the Postfix mail system Aug 28 01:16:43 dur postfix/master[19559]: daemon started -- version 2.9.1, configuration /etc/postfix Aug 28 01:16:45 dur postfix/postfix-script[19568]: stopping the Postfix mail system Aug 28 01:16:45 dur postfix/master[19559]: terminating on signal 15 Aug 28 01:16:45 dur postfix/postfix-script[19673]: starting the Postfix mail system Aug 28 01:16:45 dur postfix/master[19674]: daemon started -- version 2.9.1, configuration /etc/postfix Aug 28 01:17:22 dur postfix/smtpd[19709]: error: open database /var/lib/mailman/data/aliases.db: No such file or directory Aug 28 01:17:22 dur postfix/smtpd[19709]: connect from localhost[127.0.0.1] Aug 28 01:18:37 dur postfix/smtpd[19709]: disconnect from localhost[127.0.0.1] root@dur:~# root@dur:~# postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases, hash:/var/lib/mailman/data/aliases append_dot_mydomain = no biff = no broken_sasl_auth_clients = yes config_directory = /etc/postfix default_transport = smtp home_mailbox = Maildir/ inet_interfaces = loopback-only mailbox_command = /usr/lib/dovecot/deliver -c /etc/dovecot/conf.d/01-mail-stack-delivery.conf -m "${EXTENSION}" mailbox_size_limit = 0 mailman_destination_recipient_limit = 1 mydestination = dur, dur.bounceme.net, localhost.bounceme.net, localhost myhostname = dur.bounceme.net mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 readme_directory = no recipient_delimiter = + relay_domains = lists.dur.bounceme.net relay_transport = relay relayhost = smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) smtpd_recipient_restrictions = reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_pipelining, permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/dovecot-auth smtpd_sasl_security_options = noanonymous smtpd_sasl_type = dovecot smtpd_tls_auth_only = yes smtpd_tls_cert_file = /etc/ssl/certs/ssl-mail.pem smtpd_tls_key_file = /etc/ssl/private/ssl-mail.key smtpd_tls_mandatory_ciphers = medium smtpd_tls_mandatory_protocols = SSLv3, TLSv1 smtpd_tls_received_header = yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtpd_use_tls = yes tls_random_source = dev:/dev/urandom transport_maps = hash:/etc/postfix/transport root@dur:~# root@dur:~# And am wondering what connection might be. I do see that I don't have the requisite files: root@dur:~# root@dur:~# ll /var/lib/mailman/data/aliases ls: cannot access /var/lib/mailman/data/aliases: No such file or directory root@dur:~# At what stage were those aliases created? How can I create them? Is that what's causing the error error: open database /var/lib/mailman/data/aliases.db: No such file or directory Aug 28 01:17:22 dur postfix/smtpd[19709]: connect from localhost[127.0.0.1]?

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• DNS error only in IE

  - by Le_Quack

  Our Intranet page has stopped working on some machines/some user accounts. The error I am getting points to a DNS issue but If I ping the site from the command line the it responds fine. The error I'm gettting on IE is Error: The web filter could not find the address for the requested site Why are you seeing this: The system is unable too determine the IP address of intranet.example.com I'm not quite sure why it mentions the web filter as there is a proxy exception for the intranet page and if I run a trace route it doesn't go via the web proxy (filtering system). Finally it isn't affecting everyone, just random users, also it doesn't affect the random users on all the client machines they use. I have one user where it happens on any client they log onto where most its just certian clients. It's even "fixed" itself for a few peoples. EDIT: hey Mikey thanks for the fast response. Proxies are correct and automatic configuration is off (both via GPO)

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• Clustering service Configuration help

  - by Marky Mark

  When setting up Windows Cluster, should "clustering service" run as a "domain account" or "Local System" account?

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• RHEL5: Can't create sparse file bigger than 256GB in tmpfs

  - by John Kugelman

  /var/log/lastlog gets written to when you log in. The size of this file is based off of the largest UID in the system. The larger the maximum UID, the larger this file is. Thankfully it's a sparse file so the size on disk is much smaller than the size ls reports (ls -s reports the size on disk). On our system we're authenticating against an Active Directory server, and the UIDs users are assigned end up being really, really large. Like, say, UID 900,000,000 for the first AD user, 900,000,001 for the second, etc. That's strange but should be okay. It results in /var/log/lastlog being huuuuuge, though--once an AD user logs in lastlog shows up as 280GB. Its real size is still small, thankfully. This works fine when /var/log/lastlog is stored on the hard drive on an ext3 filesystem. It breaks, however, if lastlog is stored in a tmpfs filesystem. Then it appears that the max file size for any file on the tmpfs is 256GB, so the sessreg program errors out trying to write to lastlog. Where is this 256GB limit coming from, and how can I increase it? As a simple test for creating large sparse files I've been doing: dd if=/dev/zero of=sparse-file bs=1 count=1 seek=300GB I've tried Googling for "tmpfs max file size", "256GB filesystem limit", "linux max file size", things like that. I haven't been able to find much. The only mention of 256GB I can find is that ext3 filesystems with 2KB blocks are limited to 256GB files. But our hard drives are formatted with 4K blocks so that doesn't seem to be it--not to mention this is happening in a tmpfs mounted ON TOP of the hard drive so the ext3 partition shouldn't be a factor. This is all happening on a 64-bit Red Hat Enterprise Linux 5.4 system. Interestingly, on my personal development machine, which is a 32-bit Fedora Core 6 box, I can create 300GB+ files in tmpfs filesystems no problem. On the RHEL5.4 systems it is no go.

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• HOSTS ignored when disconnected [closed]

  - by Synetech

  Problem I’m seeing a strange and extremely frustrating problem. Any system that is not connect to the Internet (Windows 7 shows the no Internet access icon because it cannot constantly ping Microsoft’s servers) cannot even access locally hosted servers. Hypothesis The problem appears to be that the HOSTS file is not being used to resolve DNS entries when there are no active NICs. Tests / Reproduction You can reproduce it as so: Disconnect a system from the Internet (make sure all wired and wireless connections are disconnected). If necessary, add an entry to the HOSTS file (e.g., 127.0.0.1 foobar or 127.0.0.1 foobar.com) Open a command-prompt Type ping foobar or ping foobar.com Observations The screenshots below show a clear and demonstrative example. In the first snap, a laptop is connected to a router wirelessly. The HOSTS file has only three entries and they resolve just fine. In the second snap, the wireless radio is turned off, so the entries in the HOSTS file are ignored. Moreover, notice that pinging localhost still works even without any active NICs (as does 127.0.0.1), but it is using the IPv6 address (must be hard-coded). You can see the same results in Windows XP with no IPv6 installed, so it has nothing to do with IPv6. I tried pining what should have resolved to 127.0.0.1 while the desktop system (with no wireless NICs) was connected via its Ethernet adapter, then again after pulling the cable from the router and waiting a couple of seconds, then again after plugging the cable back in. The same thing happens if instead of pulling out the cable, the NIC is disabled through software (the [Disable] button in the NIC’s Status dialog or via Device Manager). Conclusions It looks as though the HOSTS file is only being read and used if there is an active NIC, otherwise it is being ignored. This makes some sense in that if there are no active network adapters, then presumably there will not be any network activity, and thus no need to resolve host names via the HOSTS file. This assumption is specious however because it precludes locally hosted virtual servers. The HOSTS file should be used regardless of external DNS server connectivity, otherwise you cannot use simple/consistent/testing-production names for locally hosted servers when not connected to the Internet (for example web servers; help servers for Visual Studio, 3dsmax, etc.; and so on). Question Does anyone know how to force Windows to use the HOSTS file even if there are no active NICs? Appendix Figure 1: While the wireless NIC is connected to the router (the cable-modem is in standby, so no external Internet connectivity). Figure 2: With the wireless radio turned off (the Ethernet port is not unconnected in both cases). Figure 3: Same results in XP with no IPv6

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• dead man's switch for remote networking interventions

  - by ascobol

  Hi, As I'm going to change the network configuration of a remote server, I was thinking of some security mechanisms to protect me from accidentally loosing control on the server. The level-0 protection I'm using is a scheduled system reboot: # at now+x minutes > reboot > ctrl+D where x is the delay before reboot. While this works relatevly well for very simple tasks like playing with iptables this method has at least two drawbacks: It's not very reactive, ie a connectivity problem should be detected automatically if for example an automatic remote ssh command fails does not work anymore for x seconds. It can obviously not work if one need to modify some configuration files and then reboot to test the changes. Are you guys using some tool for the second point ? I would love to have something able to revert the system configuration in a previously known stable state if I can't join the server X minutes after reboot. Thanks!

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