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• Postfix, saslauthd, mysql, smtp authentication problems

  - by italiansoda

  Trying to get authentication on my mail server (ubuntu 10.04) running but am having trouble. I have a server with postfix for smtp setup, imap server with courier setup. My postfix authentication is using cyrus (I haven't tried dovecot really) saslauth. The user name and password is stored in a MySql database. Logging in with imap-ssl works on a remote client (thunderbird), and I can read my mail. I can't get the SMTP side working, and have focused the issue down to saslauth. Testing with testsaslauthd -u 'username' -p 'passowrd' -s smtp returns connect() : Permission denied the password in the database is encrypted and I guess this testsaslauthd will take a plain text password and encrypt it. Looking for someone to walk me through getting this working. Im new to the mail server, and have never got one fully working. Thanks. Ask me which log files I should look at/post, which tests to run, permissions to check.

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• ssh-agent is broken after running Meerkat - can connect to git in terminal but not in Tower - no keychain access

  - by marblegravy

  My mac running Snow leopard 10.6.8 is having trouble handling it's ssh keys. I could previously access all my git repo's via Tower without an issue. The other day I ran Meerkat to see what it was about and it looks like it has broken the way ssh works. Terminal doesn't seem to have a problem and can still connect to Git, but it can't access the keychain. Tower doesn't seem to be able to access anything. The Tower support crew have been super helpful, but I wanted to float this here and see if anyone has any ideas on how to fix my problem. The only hints I have are: $ which ssh returns: /usr/bin/ssh and echo $SSH_AUTH_SOCK returns: /tmp/ssh-nBhRYVEg8t/agent.199 (This one seems to be wrong as I think it's supposed to point to a Listener, but no idea how to fix it) additional: Keychain first-aid finds no problems. The problem seems to be that ssh-agent is not being run properly... but that's just a guess.

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• man: command not found in zsh (Mac OS 10.58)

  - by Oscar

  I changed to zsh from the default (by changing the "Shells open with" preference in Terminal to "command (complete path)" set to /bin/zsh While most things seem to work, I tried to see the man page for a command and got a "permission denied" message. When I tried sudo, I got "man: command not found". I changed to the default shell (/bin/tcsh), and this is what I get when I open a new shell: Last login: Fri Nov 18 13:53:50 on ttys000 Fri Nov 18 13:55:21 CST 2011 /usr/bin/manpath: Permission denied. If I try man, I get the same "command not found message". I guess there is something wrong in my PATH, but I have no idea how to fix it. "echo $PATH" (in tcsh) gets: /sw/bin:/sw/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/texbin In zsh, it gets: /usr/bin:/bin:/sw/bin:/usr/local/bin:/usr/local/teTeX/bin/powerpc-apple-darwin-current:/usr/sbin:/sbin:/usr/texbin:/usr/X11/bin Any ideas?

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• Which is generally considered faster or best practice: symlinks or Apache aliases?

  - by Christopher W. Allen-Poole

  I'm curious as to what most people's views are on this subject. Personally, I will almost always prefer symlinks unless I have no other option -- I find that it is far more obvious when someone is navigating the file system, but, on the other hand aliasing is more platform independent. Windows XP, for example, doesn't have anything remotely comparable to symlinks (NTFS junctions are not interpreted correctly by at least some environments), which means that anything which relies on symlinks in a *nix based system cannot be transferred. (I know that Windows 64x OS's have symlinks, but I've not seen if they can be read correctly by the environments previously mentioned) In addition to this, I was also wondering which is considered faster. Is this even possible to know? Do you have a conjecture? I would imagine that since symlinks are generally more low-level than Apache it would make sense that they would be referenced faster, but, on the other hand, I would guess that Apache is required to do a lookup in either case so it would be disk read dependent.

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• Should a sysadmin contractor charge overtime for off-peak hours?

  - by Jakobud

  This is not necessarily a server-related question, but more of a system admin question that I think would related to many on SF. I'm doing Sysadmin/IT consulting for a small company. I only work about 3 days a week for them on average. If a server goes down or something like that during off hours (nights, weekends, 3am, etc) and they need it fixed during those time periods, should I be charging overtime for that? I would I not be justified in charging overtime until I've logged 40 hours for the week? Perhaps calling it overtime isn't the best name. I guess maybe its better to call it an off-peak hourly rate. Anyways I just was curious what other consultants did in these circumstances.

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• What can I do with .chk files in FOUND.000 folders?

  - by Svish

  Just discovered I have gotten a FOUND.000 folder on my usb drive. I guess from running chkdsk once. It has three files in it: FILE0000.CHK FILE0001.CHK FILE0002.CHK What exactly can I do with these files? What are my options? Are they lost files? Are they garbage? Can I use them for anything at all? Or will I just have to delete them?

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• Asterisk does not recognise DTMF tones from mobile phones

  - by Eugene van der Merwe

  We have an Asterisk 1.8.7.0 (the Elastix derivative) switchboard. Every since a month ago, seemingly out of the blue, the switchboard does not recognise DTMF tones any more from mobile phones. Testing the switchboard using 7777 works. Testing the switchboard from a normal phones works. Testing the switchboard from a mobile phone fails. Looking at the log file I can't see anything. I used 'asterisk -rvvvv' and 'tail -f /var/log/asterisk/full' to see the live output and scan the logs. I guess I don't see anything because it's simply not recognising the DTMF tones. I did brief research and found an old setting for SIP phones, 'rfc2833compensate=yes', and tried adding this to 'sip_general_custom.conf'. After that I did 'core restart when convenient' but that didn't make any difference. Could anyone give me some additional troubleshooting steps?

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• aligning truecrypt partition on 1.5TB 4kB sector drive

  - by pQd

  hi, aligning partitions to start at real physical sector of ssds / stripped raids / 4kB drives is a 'good thing to do'. but i've run into a problems when trying to do it for a truecrypt partition that will contain ext3 on it. or so it seems. when drive is question is partitioned properly and formatted with ext3 i get very reasonable write speeds around 70-80MB/s, but when i put truecrypt and ext3 on the top of it write performance becomes very unstable and goes between 1-25MB/s with very high io-wait. on the same server i dont have any performance issues with ext3 on the top of truecrypt on regular 512B-sector 500GB sata disks. so my best guess is that iowaits are caused by misalignment but i cannot really find reliable information on how to calculate optimal partition beginning. i've tried to start it at 128 logical sector, i've also tried 8132 sector as suggested here but both gave me very bad and unstable performance. do you have any experience with similar setup? thanks!

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• A decent S3 bucket manager for Ubuntu

  - by Luke

  I'm looking for a decent S3 bucket manager for Ubuntu (Gnome). I prefer it to integrate with Nautilus so it will look like just any other drive (a la WebDAV) but so far I haven't been able to find anything that I'd like to use on a daily basis. What bucket managers do you use for Ubuntu or what bucket manager would you recommend? UPDATE: S3FS seems to be what I'd really want to use since it lets me integrate my buckets directly into my file-system. However, when trying S3FS I do not get the impression that it's ready for prime time. I'm stunned by the fact that there are no decent bucket managers out there for Ubuntu/Gnome, guess I have to build it myself...

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• Changed file and now I cannot access my SSH anymore

  - by Arnold

  I was trying to get my dedicated server to have a couple of VPS's installed using this tutorial: http://linux-vserver.org/Installation_on_CentOS In the process I had to change a file: /etc/ssh/sshd_config The documentation advises to change it into: ListenAddress <host IP address> Guess what? I literally added <host IP address> instead of the dedicated servers IP. I restarted the server and now I'm not able to access my SSH anymore. Can anyone help me to gain access to my SSH again? I'm using CentOS 6.

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• Acer Aspire 5719 with Windows XP does not boot

  - by Sri

  Hi, I have an Acer Aspire 5710 which came pre-loaded with Windows Vista. O/S has been changed to Win SXP SP2 and was working fine till today. The laptop starts up and then hangs (does not reach till the Windows screen). Have tried the following Repair with XP CD. Re-install with XP CD (In both cases the error "No hard disk" is displayed.) Tried F5/F8 to boot with other options. Guess the hard-disk is not being recognised. The 160 Gb SATA disk is shown as IDE0 in the Phoenix Bios. There is no floppy drive. Any suggestions. Thanks, Sri.

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• OS X Terminal lines don't go into scrollback

  - by Steve Madsen

  I have a problem that crops up when using Mac OS X's Terminal (TERM=xterm): sometimes it gets itself into a state where lines that scroll off the top are not added to the scrollback buffer. I'm not using screen or similar; this is a plain bash shell inside a Terminal tab. It doesn't do this immediately after opening a new tab. I believe it is a side-effect of something I've run in the problem tab. My guess is that it has something to do with the xterm emulation, possibly the scroll region. What hasn't worked: Soft and hard reset via the Shell menu Running reset in the tab Is there a reliable way to reset Terminal and/or the xterm state? Can anyone provide a explanation for what's happening, even if the only fix is to close the tab and open a new one?

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• /etc/profile.d and "ssh -t"

  - by petersohn

  I wanted to run a script on a remote machine. The simple solution is this: ssh remote1 some-script This works until the remote script doesn't want to connect to another remote machine (remote2) which requires interactive authentication, like tis one (remote2 is only reachable through remote1 in this case): ssh remote1 "ssh remote2 some-script" The solution for the problem is to use the -t option for ssh. ssh -t remote1 "ssh remote2 some-script" This works, but I get probems in case I use this (where some-script may execute further ssh commands): ssh -t remote1 some-script I found that some environment variables are not set which are set when I don't use the -t option. These envrionment variables are set in scripts from /etc/profile.d. I guess that these scripts are not run for some reason if using the -t option, but are run if I don't use it. What's the reason of this? Is there any way to work around it? I am using SUSE linux (version 10).

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• Accessing multiple local HD's or RAID with ESXi 4.0

  - by Shawn Anderson

  How to I get additional HD's to be recognized and used by ESXi 4.0. When I purchased my system I had two 2TB HD's, but when I installed ESXi it only recognized one of them. I'm happy to get whatever number of drives that I need (I have a four bay SATA in my Dell T310). What are some options? RAID? If so, is it supported. I guess I would need hardware instead of software since ESXi is so small. The VMWare forums (where I've lived for the last two days) are a charlie foxtrot of outdated and conflicting info. I want to utilize my T310, with 32 GB RAM, 2.8GHz quad core to run many lab Windows VM's. I don't need production level availability but I do want decent performance, even though it's in a lab environment. A huge thanks to Jim B., Zypher, Helvick, and Jeff Hengesbach who posted answers to my earlier predecessor question on why ESXi was so sluggish.

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• Does ssh-copy-id overwrite previous keys?

  - by decker

  I haven't yet found any definitive answer on this using google. It seems like the answer is no, but I need to know for sure before I go ahead and do it. Does ssh-copy-id append the key to authorized_keys or does it overwrite the previous keys? Thanks. Addendum: So the answer is right there in the man page. Go figure. I guess the question can at least help fellow Google-jockeys like me who get a little too used to googling and finding tutorials (that often explain things in layman's terms for us poor folks who have only used Windows our whole lives).

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• Apache log file problem

  - by Luke

  I've recently set up an Apache 2 web server and I noticed a quite a few lines in the error and access log that start with the follow sequence (but longer). Does anyone know where this comes from? ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ ....... My set up is an Apache 2 load balancer with mod_balancer enabled and two Apache 2 web servers. All three servers write to the same log files on a share located on a NFS. My first guess is that my problem has to do with it since it's the only difference that comes to mind from other set ups I've used in the past but I'm not sure.

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• How to make outlook.com/Office 365 use plain text and/or conventional quotes?

  - by user23122

  I am forced to use the web version of Outlook at Office 365. I really dislike how it formats e-mail as well as how it handles quoting when replying. In the desktop version of Outlook you can at least force it too display the messages in plain text and then you can manually bottom post/post interleaved. Plain text also changes how it handles quotes: " " is used rather than some braindead RTF version of format=flowed (I like format=flowed when it is implemented without bugs) although the attribution line is completely useless but in the online version I can't find a way to achieve even this. Any ideas? I guess a Greasemonkey script could do this?

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• How can I create an encrypted, bootable thumbdrive containing Linux?

  - by Hanno Fietz

  I want to have a bootable flash drive that's fully encrypted. I have not tested, but seem to like, TrueCrypt, which provides a fully encrypted system and has lots of other features I like (for instance, hidden volumes). Unfortunately, it seems, system encryption is only supported for Windows, although I'm not sure why. The crux here, I guess, is that you need a boot loader that is capable of asking for your password and decrypt the disk, at least the part that contains kernel and initrd. An alternative might be to have an unencrypted boot partition containing a more powerful system which will decrypt and mount the main partition. However, this brings up the question of whether you're introducing data leaks. Depending on the specific scenario, I may lack the experience to assess if this is a problem. So I'd strongly prefer a fully encrypted disk or a similarly straightforward alternative.

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• Incremental backup services with change only charges?

  - by wowowewah

  I'm looking for online backup services that provide incremental, change-only backups. I'm looking to transfer as little data as possible and would like to find a service that provides full backups every week along with incremental backups every day. Are there any specialist companies that deal with this or do I just use standard backup ones? Any recommendation appreciated. To expand on this Im looking for software/services which work on Unix. I guess Linux is fine aswell as FreeBSDs Linux compatibility layer should run it. Oh and command line would be ideal and not require the use of X Window. Thanks.

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• Linux: don't use file system cache under a directory

  - by GetFree

  For a PHP website I'm monitoring, I need to see what files are being used each time the browser makes a request. I thought of using find . -type f -amin 1. With that I get all files which were read in the last minute (it's a developing server so only I am using the website). I took care of removing the noatime attribute from the mounting point. However there must be something else that's preventing the kernel from reading the actual files on disk because the access time is not being updated when I read a file. I guess it must be the file-system cache which is retrieving the files from memory. Is there a way to disable file caching under a specific directory? (public_html in my case) Also I read somewhere that there is the nobh mounting atributes which apparently disables file caching under that mounting point, but I'm not sure.

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• infiniband network between 3 servers

  - by grumpf

  Let's say I have 3 different servers, each one with an infiniband card. Each card has 2 different ports. (I don't know about the model yet) Is it possible to create 3 different networks and to allow the 3 servers to communicate with each other without any problems? (and any spof). I guess I just have to setup the /etc/hosts correctly. I really don't know about infiniband, so please help me :) Thanks in advance. EDIT: Point is to NOT USE a switch!

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• Windows Media Player 11 Not Detecting Autoplaylists

  - by tuna

  Every time I open Windows Media Player it fails to detect my autoplaylists stored in <my music library dir>\Playlists. This appears to lead to sync problems since I (exclusively) use autoplaylists to sync music to my mobile. As WMP 11 fails to find the any sync autoplaylists it infuriatingly seems to decide that I want no music at all on my phone and proceeds to delete all my music off my phone. I guess these are two seperate problems but it seems to me they are related. If anyone can shed any light on a fix, that would be much appreciated. Many thanks

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• Create a folder shortcut/redirection in Vista

  - by Ellipsis

  Given a plain old directory of files in Windows Vista, say "C:\OldFolder\", is it possible to move the contents of that directory to a new location, perhaps "F:\NewFolder\" and keep a shortcut-like 'virtual' folder at C:\OldFolder that will always redirect access to the updated location. Shortcuts work for users accessing through the GUI to some extent, but all application links to the old location won't work anymore even with a shortcut. For example, If MS Word tried to access C:\OldFolder\document.doc I would want Windows to simply rewrite it's request to F:\NewFolder\document.doc... I guess I'm basically looking for Apache's Mod_Rewrite for Windows Vista... any suggestions?

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• Using TrueCrypt with File Replication on Windows Server

  - by neildeadman

  We have a few folders that are set to replicate to a DR file server off-site. One of these folders contains a file that is a TrueCrypt volume container. When this file is mounted in TrueCrypt, the file won't replicate (fair enough!). I'm looking at alternatives to improve this situation. One solution I currently have is to have a scheduled task to unmount the volume and then every morning as the volume is needed, have someone mount it. This is a pain slightly because the password is known by a few people (I'm not one and neither are my colleagues who would be performing the mounting operation) so we'd need to continually get them to come over and type it in. The other I had was to have one TrueCrypt container on each server and replicate the contents when they are mounted. I wasn't able to get TrueCrypt to see the mounted volume so I guess this is a no go. Any other solutions I have missed or a fix for the above?

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• Spawned Process Terminated in GP Startup Script

  - by Charles Gargent

  I have a Group Policy Startup Script which runs synchronously. I now need this script to run one process asynchronously. So far I have managed to get the spawned process running via the command below, however once the rest of the script finishes and the GP Startup Script "phase" finishes and the logon prompt is shown, my spawned process is terminated. Is there any way to have this process continue beyond the Startup Script phase? cmd /c start spawned.bat I guess the reason why it terminates is because the process was launched by the Startup Script process and when the parent process terminates so do its children. PS I need it to be launched via the exisitng script.

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