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  • What does directory permission 'S' mean? (not lower case, but in upper case)

    - by Howard Guo
    I downloaded Eclipse, uncompressed it, did a few other things and all sudden I notice this interesting behaviour: ^_^ ~/Downloads > sudo chmod 0000 eclipse/ ^_^ ~/Downloads > stat eclipse/ File: 'eclipse/' Size: 4096 Blocks: 8 IO Block: 4096 directory Device: 801h/2049d Inode: 529725 Links: 9 Access: (2000/d-----S---) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-11-22 19:54:57.752017352 +1100 Modify: 2012-09-20 18:16:26.000000000 +1000 Change: 2012-11-22 20:07:49.354016510 +1100 Birth: - ^_^ ~/Downloads > sudo chmod 0755 eclipse/ ^_^ ~/Downloads > stat eclipse/ File: 'eclipse/' Size: 4096 Blocks: 8 IO Block: 4096 directory Device: 801h/2049d Inode: 529725 Links: 9 Access: (2755/drwxr-sr-x) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2012-11-22 19:54:57.752017352 +1100 Modify: 2012-09-20 18:16:26.000000000 +1000 Change: 2012-11-22 20:08:19.042016478 +1100 Birth: - What does 'S' permission mean to a directory? And why it doesn't let me get rid of it? Thanks.

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  • ubuntu bash shell

    - by redcoder
    hi, i am very new to ubuntu.... struggling to find the proper command to install Zend Server on my Ubuntu9.10 Server. After downloading the ZF Server and extracted, i try to run this command install_zs.sh 5.3 This is the ls of the extracted ZF archive install_zs.sh README upgrade_zs_php.sh zend.deb.repo zend.rpm.repo But it says command not found ... any idea ?

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  • Cygwin file and directory user and group

    - by dvanaria
    I use Cygwin as my main development environment on both my home and work computers. In order to share files between the two computers, I use Dropbox, which is installed in the following folder on both computers: c:\cygwin\home\dvanaria\dropbox Everything works great, except for one thing. When I'm working on my home computer and do an ls -l on any directory, all the files show up as owned by dvanaria of group Users. But when I work from my work computer, an ls -l shows all files as being owned by Administrators and of group Domain Users. I know Cygwin uses some kind of mapping between Windows users and permissions to the /etc/passwd file. But to be honest I have no idea how this file works or how it maps to Windows under Cygwin. Could anyone help figure this out? The main problem is that I can't edit any files when using my work computer, only read them.

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  • Encoding with FFmpeg using a FIFO

    - by Ashot Martirosyan
    Hello everyone. I'm trying to convert Flac audio file to AAC file using command line. So I wrote this ffmpeg -i input.flac temp.wav faac -q 120 -o output.m4a temp.wav It's working fine. Now I want to do the same using fifo, so I'm writing this mkfifo temp.wav ffmpeg -i input.flac temp.wav & faac -q 120 -o output.m4a temp.wav And it's freezing. So could you tall me what I'm doing wrong. Thanks a lot, and sorry for my English.

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  • Shell scripts in sendmail aliases

    - by Rodrigo Asensio
    I'm trying to execute a sendmail alias script using this # aliases for my system addressx: |sh /usr/share/scripts/myscript.sh WON'T WORK addressx: '/usr/share/scripts/myscript.sh' WON'T WORK addressx: '|/usr/share/scripts/myscripts.sh' WON'T WORK Can I execute scripts or it must be a binary file ?

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  • Cisco NAC: help with enabling FTP or moving update files

    - by kyoung
    Hi, So this is a LINUX question, and a Cisco NAC question. I'm trying to update our server from 4.1 to 4.7, and i need to move some tarball files to the NAC. the NAC Appliance runs some strange stripped down version of Fedora Core 4 copying the upgrade: The instructions say to FTP the file to the NAC appliance, however whenever i use WinSCP with root credentials, i get a notice informing me the connection was actively refused. I can't for the life of me find any .conf files that sound like winners, so I don't know how to change the settings, however the ftp command does seem to work. what exactly should I do here?

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  • Apache, Permissions, and Convenience

    - by Mike
    I'm on Mac OSX and i I have apache2 installed via MacPorts, running as the _www user. I have some files I want to serve in the /Users/Me/Documents/abc folder. Right now, though, the permissions of /Users/Me/Documents are 700. So, _www can't get in, even if abc is chmod 777. I recognize the following options: Allow _www access to my Documents folder. Put the files I want to share outside of my Documents folder. Hard-link the files outside of my Documents folder, and point apache to the hard links. None of these solutions are acceptable to me, however. I don't feel safe allowing _www access to my entire Documents folder. I really want to keep the files in my Documents folder for other reasons. The files are changing all the time, so hard-linking would not always reflect the right file structure, and, as I understand it, you can't hard-link a directory (though, if you could, that would solve it). Any ideas for a solution? Is there a way to run a few httpd processes as my user account so it can get in there? Or, is there some way to hard-link a directory, or some way to get httpd to follow a symlink past a directory that is 700 not owned by _www? Thanks!

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  • Rpm removal does not remove delivered dirs and leaves garbage

    - by Jim
    I deliver an application via an RPM. This application delivers various directories and files. E.g. under /opt/internal/com a file structure is being copied. I was expecting that on rpm -e all the file structure delivered under /opt/internal/com will be removed. But it does not. There are directories in the file structure that are non-empty. Is this the reason? But these (non-empty) directories were created by the RPM installation. So I would expect that they would be "owned" by RPM and removed automatically. Is this wrong? Am I supposed to remove them manually?

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  • pam_ldap.so before pam_unix.so? Is it ever possible?

    - by user1075993
    we have a couple of servers with PAM+LDAP. The configuration is standard (see http://arthurdejong.org/nss-pam-ldapd/setup or http://wiki.debian.org/LDAP/PAM). For example, /etc/pam.d/common-auth contains: auth sufficient pam_unix.so nullok_secure auth requisite pam_succeed_if.so uid >= 1000 quiet auth sufficient pam_ldap.so use_first_pass auth requiered pam_deny.so And, of course, it works for both ldap and local users. But every login goes first to pam_unix.so, fails, and only then tries pam_ldap.so successfully. As a result, we have a well-known failure message for every single ldap user login: pam_unix(<some_service>:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=<some_host> user=<some_user> I have up to 60000 of such log messages per day and I want to change the configuration so, that PAM will try ldap authentication first, and only if it fails - try pam_unix.so (I think it can improve the i/o performance of the server). But if I change common-auth to the following: auth sufficient pam_ldap.so use_first_pass auth sufficient pam_unix.so nullok_secure auth requiered pam_deny.so Then I simply can't login anymore with local (non-ldap) user (e.g., via ssh). Does somebody knows the right configuration? Why Debian and nss-pam-ldapd have pam_unix.so at first by default? Is there really no way to change it? Thank you in advance. P.S. I don't want to disable logs, but want to set ldap authentication on the first place.

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  • Timestamp Updating Constantly on /dev/null

    - by motorleague
    I've been working on a problem with a /dev/null file on an AIX system (just for background it looks as though it was inadvertently deleted and recreated as a normal file by somebody), but in trying to determine what caused the problem, I noticed that the timestamp on it seems to update every minute. I've observed this on several AIX servers at my workplace. At present I can't entirely rule out this be something specific to the Application being used at my workplace, so I compared with CentOS and Debian based computers at home last night. The CentOS box, which runs 24 hours, had a mod time on /dev/null of around 4 days ago (during which time it was essentially just being used as a web browser and multimedia player, although it would have had active but essentially unused Apache, MySQL and VMM processes running in the background). The timestamp on /dev/null on the Debian machine, which was a just booted laptop, pretty much reflected the boot time, but I tested redirecting STDIN from, and STDOUT to it, and the modification time was unchanged (I'm not sure 100% sure if directing data to /dev/null constitutes "writing to it" in the way it would a normal file). So my question is essentially, could anybody please offer any advice with regards to what circumstances (permissions changes etc.. aside) might cause the timestamp on /dev/null to update? Thanks very much for any suggestions. Alex.

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  • Autosaving on emacs or xemacs files (preferably on loss of focus)

    - by Spencer
    Ideally I want to replicate with emacs functionality from TextMate, whereby on loss of focus i.e. I click away from the buffer, my file saves. If this isn't possible, I want to customize emacs so that it will autosave the file for every character I write. When I say this I don't mean I want to autosave to the ~ backup files. I want to save the file I am currently working on. I am working on a Fedora VM. Note I am not looking for a backup or autosave. I want the file I am actually in to save, so that if I loaded the html file I am editing in a web browser it would reflect my new changes without me having to explicitly change it.

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  • Can't read directory owned by my group

    - by Jonathan
    I moved the postgres data directory to a separate partition and it works great. The directory is owned by postgres user and postgres group. d-wx------ 11 postgres postgres 4.0K 2010-06-11 08:28 data/ I added myself to the group > sudo addgroup me postgres > groups me me : me adm dialout cdrom plugdev lpadmin admin sambashare postgres And gave the group read and execute permissions to everything in the directory. sudo chmod -R g+rx ./data d-wxr-x--- 11 postgres postgres 4.0K 2010-06-11 08:28 data/ But I still can not CD or LS the directory. > ls data ls: cannot open directory data: Permission denied What beginner mistake am I making?

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  • If a change the CPU, must I reinstall the OS?

    - by dag729
    Hi, as suggested by the title, I want to change CPU: actually I have two computers, one with Ubuntu running on an AMD Athlon 64 dual core 5200+ and the other with FreeBSD running on an AMD Sempron single core LE-1250. I would like to swap (I am not sure that this is the correct term...) the CPUs from one computer to the other one, that is take the dual core from the ubuntu pc and put it inside the freebsd pc and viceversa. The mobo is the same. Do you think I will encounter problems?

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  • overload environment

    - by Richo
    I've recently switched across to nesting my home directory across all my machines in an svn repo, meaning that my utility scripts, configuration (irssi, vim, zsh, screen etc) as well as my .profile and so forth are easier to keep up to date across all the places I login. I use a set of sourced .local files to override them on a per site basis as required. As it stands, many of my scripts inherit some form of configuration, and for the most part I've been setting an environment variable in .profile, and then if needed on a per site basis overriding it in .profile.local This works great, but are there pitfalls in having a stack of environment variables? If I take my default environment from within an X session before any of my personal configuration I have not even increased it by 50% but some of the machines I work on are low resource, am I bloating my system unneccessarily, or being needlessly paranoid? Should I start moving this config into seperate flatfiles that are loaded as needed? This means extra infrastructure, or alternately writing a single module for storing config that all of my utilities can inherit.

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  • Network connection on Linux

    - by Kevin
    A general question about network connection on Linux : once a network connection goes into time_wait, is it still tied to the process ? Does it still use resources like say filehandle ? Reason I ask is because once it goes into time_wait, lsof does not report it anymore. I guess that means that the network connection is no longer tied to the process and hence does not count against filehandle limit. Would like to confirm though.

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  • Solaris 11 installed, no updates?

    - by Paul De Niro
    I was messing around with solaris and decided to give Solaris 11 a try so I downloaded it from the Oracle website. After installing the OS, I went into the package manager and did an update. It told me that there were to available updates! I find this hard to believe considering that it's running a vulnerable version of firefox and java, its own in-house software product! Many of the other software products that came with the default install are also out of date and vulnerable. Is this normal for an Oracle install, or did I do something wrong with the upgrade process? I typed "pkg update" at the prompt, and I noticed that it did call out to pkg.oracle.com looking for updates. I find it bizarre that there are no updates available for an OS that was released a couple months ago with vulnerable software...

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  • How to change the mail domain server so it's not displaying IP? Changing [email protected] to [email protected]

    - by Pavel
    Hi guys. I'm kinda a noob as a server admin so please bear with me. I've installed postfix mail server and everything is working fine but the 'from' box is displaying [email protected]. I want to set it up so it displays domainname.com instead of IP. I just hope you know what I mean. My main.cf in postfix folder looks like this: # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. myorigin = /etc/mailname smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_use_tls=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = mail.thevinylfactory alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = mail.thevinylfactory.com, thevinylfactory, localhost.localdomain, localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all Can anyone help me with this one? If you need any more details please let me know. Thanks in advance!

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  • DHCP server inside a virtual machine can't see other machines

    - by William
    Hi, I setup a private network from virtual machines and one of the machines is the DHCP server for the group. I want to specify a next-server for the DHCP server but I'm having trouble connecting to any of the machines that I lease IPs to. I'm just trying to do a simple ping/ssh to 10.0.0.252 (a machine with a lease) but it doesn't seem to respond. Any advice? I'm assuming I need to be able to connect to my next-server but maybe I'm wrong. Thanks.

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  • /etc/hosts: What is loghost? (fresh install of Solaris 10 update 9)

    - by cjavapro
    # # Internet host table # ::1 localhost 127.0.0.1 localhost XX.XX.XX.XX myserver loghost What is the purpose of loghost? If it was not for having loghost in there, all the /etc/hosts files on all the servers in this particular network could be identical. Edit: I looked at /etc/syslog.conf #ident "@(#)syslog.conf 1.5 98/12/14 SMI" /* SunOS 5.0 */ # # Copyright (c) 1991-1998 by Sun Microsystems, Inc. # All rights reserved. # # syslog configuration file. # # This file is processed by m4 so be careful to quote (`') names # that match m4 reserved words. Also, within ifdef's, arguments # containing commas must be quoted. # *.err;kern.notice;auth.notice /dev/sysmsg *.err;kern.debug;daemon.notice;mail.crit /var/adm/messages *.alert;kern.err;daemon.err operator *.alert root *.emerg * # if a non-loghost machine chooses to have authentication messages # sent to the loghost machine, un-comment out the following line: #auth.notice ifdef(`LOGHOST', /var/log/authlog, @loghost) mail.debug ifdef(`LOGHOST', /var/log/syslog, @loghost) # # non-loghost machines will use the following lines to cause "user" # log messages to be logged locally. # ifdef(`LOGHOST', , user.err /dev/sysmsg user.err /var/adm/messages user.alert `root, operator' user.emerg * ) Very interesting. when shutting down,, alerts go to all users probably through *.emerg * Looking at ifdef, it seems that the first parameter checks to see if current machine is a loghost, second parameter is what to do if it is and third parameter is what to do if it is not. Edit: If you want to test a logging rule you can use svcadm restart system-log to restart the logging service and then logger -p notice "test" to send a test log message where notice can be replaced with any type such as user.err, auth.notice, etc.

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  • Title: Better logging for cronjob output

    - by Stefan Lasiewski
    I am looking for a better way to log cronjobs. Most cronjobs tend to spam email or the console, get ignored, or create yet another logfile. In this case, I have a Nagios NSCA script which sends data to a central Nagios sever. This send_nsca script also prints a single status line to STDOUT, indicating success or failure. 0 * * * * root /usr/local/nagios/sbin/nsca_check_disk This emails the following message to root@localhost, which is then forwarded to my team of sysadmins. Spam. forwarded nsca_check_disk: 1 data packet(s) sent to host successfully. I'm looking for a log method which: Doesn't spam the messages to email or the console Don't create yet another krufty logfile which requires cleanup months or years later. Capture the log information somewhere, so it can be viewed later if desired. Works on most unixes Fits into an existing log infrastructure. Uses common syslog conventions like 'facility' Some of these are third party scripts, and don't always do logging internally.

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  • How can I recursively verify the permissions within a given subdirectory?

    - by Mike
    I'd like to verify that nothing within /foo/bar is chmod 777. Or, alternatively, I'd like to make sure that nothing within /foo/bar us owned by user1 or in group1. Is there any way I can recursively verify the permissions within a given subdirectory to make sure there aren't any security holes? Notice that I do not want to change all the permissions to something specific, nor do I want to change the owner to something specific, so a recursive chmod or chown won't do it... Thanks!

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