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• redirect temporarily STDOUT to another file descriptor, but still to screen

  - by Carlos Campderrós

  I'm making a script that executes some commands inside, and these commands show some output on STDOUT (and STDERR as well, but that's no problem). I need that my script generates a .tar.gz file to STDOUT, so the output of some commands executed in the script also go to STDOUT and this ends with a not valid .tar.gz file in the output. So, in short, it's possible to output the first commands to the screen (as I still want to see the output) but not via STDOUT? Also I would like to keep the STDERR untouched so only error messages appear there. A simple example of what I mean. This would be my script: #!/bin/bash # the output of these commands shouldn't go to STDOUT, but still appear on screen some_cmd foo bar other_cmd baz #the following command creates a tar.gz of the "whatever" folder, #and outputs the result to STDOUT tar zc whatever/ I've tried messing with exec and the file descriptors, but I still can't get it to work: #!/bin/bash # save STDOUT to #3 exec 3>&1 # the output of these commands should go to #3 and screen, but not STDOUT some_cmd foo bar other_cmd baz # restore STDOUT exec 1>&3 # the output of this command should be the only one that goes to STDOUT tar zc whatever/ I guess I'm lacking closing STDOUT after the first exec and reopen it again or something, but I can't find the right way to do it (right now the result is the same as if I didn't add the execs

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• Create Google Maps screenshots at regular intervals

  - by Dave Jarvis

  Background People are concerned that building a pipeline to the West Coast of Canada will increase the number of oil tankers, thus increasing the probability of a major oil spill, thereby creating an environmental catastrophe. The AIS Live Ships Map website captures real-time Marine Traffic updates using a Google Maps interface. While it is possible to obtain data from an AIS data feed, often the feeds are either pay-for-use, or otherwise encumbered with license restrictions. Problem The AIS Live Ships website presents a map in the browser: The map above has had its location interactively changed to focus on the area in question: the northern straight of Vancouver Island. Question How would you create a service that captures the map every 30 minutes and that could run, with neither user-intervention nor a significant memory footprint, for a few years? Idea #1 Create a virtual machine. Install and run a light-weight browser. Use Shutter to take captures at regular intervals. Idea #2 Use Python's Ghost Webkit to automate the captures. Thank you!

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• cannot install Komodo IDE

  - by Delirium tremens

  I double-click komodo, but it doesn't run. In the Terminal, I type "echo $PATH", but the Komodo dir isn't there. There too, I type "komodo", but the command isn't found. While trying to install Komodo, I may have typed wrong paths. How to correct $PATH? How to run Komodo? echo $PATH echoes /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

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• Backup Xen domU machines while running.

  - by Jonathan Hawkes

  The host machine is running CentOS 5.3 and using LVM to create Logical Volumes (LVs) and to allow live snapshots to be taken of those LVs. My thought was to store all of the image files for the Xen underpriviledged domains (domU) in a single LV and periodically take a snapshot of that LV and copy the disk images out of the snapshot in order to make a live backup of these systems. Is this doable? Is there a better way? Thanks!

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• ignore ipv6 router advertisements for static addresses with bonded interfaces

  - by boran

  I need to attribute static IPv6 addresses (not use autoconfigured addresses, and ignore router advertisements). This can be done as follows for a standard interface like eth0 iface eth0 inet6 static address myprefix:mysubnet::myip gateway myprefix:mysubnet::mygatewayip netmask 64 pre-up /sbin/sysctl -q -w net.ipv6.conf.$IFACE.autoconf=0 pre-up /sbin/sysctl -q -w net.ipv6.conf.$IFACE.accept_ra=0 However, how can this be done for bonded interfaces? using the "all" interface does not work. Systems is Ubuntu 10.04, 2.6.24-24-server. If one uses the above sysctl command for the bond0, the networking hangs on boot, because /proc/sys/net/ipv6/conf/bond0 does not yet exist and cannot be written to. One the system has booted /proc/sys/net/ipv6/conf/bond0 exist, so one solution after booting is to add the following to /etc/rc.local: /sbin/sysctl -q -w net.ipv6.conf.bond0.autoconf=0 /sbin/sysctl -q -w net.ipv6.conf.bond0.accept_ra=0 /etc/init.d/networking restart and this has the desired effect, the autoconfig v6 address disappears. Seems like a bit of a hack though, are there better solutions?

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• mdadm auto grow raid

  - by johannes

  I have a raid0/1 on lvm logical volumes. I resized the logical volumes. Now I want to resize the raid to use the complete logical volumes. This can be done with mdadm /dev/md? --grow -z newsize But somehow I can't figure out how to calculate the newsize argument. Is there a way to tell mdadm to grow to the biggest possible size? If not, how do I calculate the biggest possible size of the raid to use for the newsize argument?

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• Cannot access files after trying to upgrade Ubuntu

  - by Ola

  I tried to upgrade Ubuntu from 11.10 to 12.04. I left it for 24 hours but the upgrade did not complete. Hence I cancelled the upgrade. I thought I will copy all the files that I have to a DVD/CD and try try downloading a copy of Ubuntu. But now, I cannot open any file or copy them. I cannot even shutdown my laptop. I have many important files on my laptop. Can someone help me retrieve my files from my laptop? Regards Ola

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• IPvsadm not equally balancing on wlc scheduler

  - by davidsmalley

  For some reason, ipvsadm does not seem to be equally balancing the connections between my real servers when using the wlc or lc schedulers. One real server gets absolutely hammered with requests while the others receive relatively few connections. My ldirectord.cf file looks like this: quiescent = yes autoreload = yes checktimeout = 10 checkinterval = 10 # *.site.com http virtual = 111.111.111.111:http real = 10.10.10.1:http ipip 10 real = 10.10.10.2:http ipip 10 real = 10.10.10.3:http ipip 10 real = 10.10.10.4:http ipip 10 real = 10.10.10.5:http ipip 10 scheduler = lc protocol = tcp service = http checktype = negotiate request = "/lb" receive = "Up and running" virtualhost = "site.com" fallback = 127.0.0.1:http The weird thing that I think may be causing the problem (but I'm really not sure) is that ipvsadm doesn't seem to be tracking active connections properly, they all appear as inactive connections IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP 111.111.111.111:http lc -> 10.10.10.1:http Tunnel 10 0 10 -> 10.10.10.2:http Tunnel 10 0 18 -> 10.10.10.3:http Tunnel 10 0 3 -> 10.10.10.4:http Tunnel 10 0 10 -> 10.10.10.5:http Tunnel 10 0 5 If I do ipvsadm -Lnc then I see lots of connections but only ever in ESTABLISHED & FIN_WAIT states. I was using ldirectord previously on a Gentoo based load balancer and the activeconn used to be accurate, since moving to Ubuntu 10.4 LTS something seems to be different. # ipvsadm -v ipvsadm v1.25 2008/5/15 (compiled with popt and IPVS v1.2.1) So, is ipvsadm not tracking active connections properly and thus making load balancing work incorrectly and if so, how do I get it to work properly again? Edit: It gets weirder, if I cat /proc/net/ip_vs then it looks like the correct activeconns are there IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn TCP B86A9732:0050 rr -> 0AB42453:0050 Tunnel 10 1 24 -> 0AB4321D:0050 Tunnel 10 0 23 -> 0AB426B2:0050 Tunnel 10 2 25 -> 0AB4244C:0050 Tunnel 10 2 22 -> 0AB42024:0050 Tunnel 10 2 23

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• Apache restart does not load new php.ini

  - by Tiffany Walker

  Never had this problem till updated CPanel today? Maybe that is part the problem? I only have the one php.ini file # /usr/local/bin/php --info | grep php.ini Configure Command => './configure' '--disable-cgi' '--disable-fileinfo' '--enable-bcmath' '--enable-calendar' '--enable-exif' '--enable-ftp' '--enable-gd-native-ttf' '--enable-libxml' '--enable-magic-quotes' '--enable-mbstring' '--enable-pdo=shared' '--enable-soap' '--enable-sockets' '--enable-zip' '--prefix=/usr/local' '--with-bz2' '--with-config-file-path=/usr/local/lib' '--with-config-file-scan-dir=/usr/local/lib/php.ini.d' '--with-curl=/opt/curlssl/' '--with-curlwrappers' '--with-freetype-dir=/usr' '--with-gd' '--with-imap=/opt/php_with_imap_client/' '--with-imap-ssl=/usr' '--with-jpeg-dir=/usr' '--with-kerberos' '--with-libdir=lib64' '--with-libexpat-dir=/usr' '--with-libxml-dir=/opt/xml2' '--with-libxml-dir=/opt/xml2/' '--with-mcrypt=/opt/libmcrypt/' '--with-mysql=/usr' '--with-mysql-sock=/var/lib/mysql/mysql.sock' '--with-mysqli=/usr/bin/mysql_config' '--with-openssl=/usr' '--with-openssl-dir=/usr' '--with-pcre-regex=/opt/pcre' '--with-pdo-mysql=shared' '--with-pdo-sqlite=shared' '--with-pic' '--with-png-dir=/usr' '--with-pspell' '--with-sqlite=shared' '--with-tidy=/opt/tidy/' '--with-xmlrpc' '--with-xpm-dir=/usr' '--with-xsl=/opt/xslt/' '--with-zlib' '--with-zlib-dir=/usr' '--with-gettext' Configuration File (php.ini) Path => /usr/local/lib Loaded Configuration File => /usr/local/lib/php.ini Scan this dir for additional .ini files => /usr/local/lib/php.ini.d # /usr/bin/php --info | grep php.ini <tr><td class="e">Configure Command </td><td class="v"> &#039;./configure&#039; &#039;--disable-fileinfo&#039; &#039;--enable-bcmath&#039; &#039;--enable-calendar&#039; &#039;--enable-exif&#039; &#039;--enable-ftp&#039; &#039;--enable-gd-native-ttf&#039; &#039;--enable-libxml&#039; &#039;--enable-magic-quotes&#039; &#039;--enable-mbstring&#039; &#039;--enable-pdo=shared&#039; &#039;--enable-soap&#039; &#039;--enable-sockets&#039; &#039;--enable-zip&#039; &#039;--prefix=/usr&#039; &#039;--with-bz2&#039; &#039;--with-config-file-path=/usr/local/lib&#039; &#039;--with-config-file-scan-dir=/usr/local/lib/php.ini.d&#039; &#039;--with-curl=/opt/curlssl/&#039; &#039;--with-curlwrappers&#039; &#039;--with-freetype-dir=/usr&#039; &#039;--with-gd&#039; &#039;--with-imap=/opt/php_with_imap_client/&#039; &#039;--with-imap-ssl=/usr&#039; &#039;--with-jpeg-dir=/usr&#039; &#039;--with-kerberos&#039; &#039;--with-libdir=lib64&#039; &#039;--with-libexpat-dir=/usr&#039; &#039;--with-libxml-dir=/opt/xml2&#039; &#039;--with-libxml-dir=/opt/xml2/&#039; &#039;--with-mcrypt=/opt/libmcrypt/&#039; &#039;--with-mysql=/usr&#039; &#039;--with-mysql-sock=/var/lib/mysql/mysql.sock&#039; &#039;--with-mysqli=/usr/bin/mysql_config&#039; &#039;--with-openssl=/usr&#039; &#039;--with-openssl-dir=/usr&#039; &#039;--with-pcre-regex=/opt/pcre&#039; &#039;--with-pdo-mysql=shared&#039; &#039;--with-pdo-sqlite=shared&#039; &#039;--with-pic&#039; &#039;--with-png-dir=/usr&#039; &#039;--with-pspell&#039; &#039;--with-sqlite=shared&#039; &#039;--with-tidy=/opt/tidy/&#039; &#039;--with-xmlrpc&#039; &#039;--with-xpm-dir=/usr&#039; &#039;--with-xsl=/opt/xslt/&#039; &#039;--with-zlib&#039; &#039;--with-zlib-dir=/usr&#039; </td></tr> <tr><td class="e">Configuration File (php.ini) Path </td><td class="v">/usr/local/lib </td></tr> <tr><td class="e">Loaded Configuration File </td><td class="v">/usr/local/lib/php.ini </td></tr> <tr><td class="e">Scan this dir for additional .ini files </td><td class="v">/usr/local/lib/php.ini.d </td></tr> everytime I restart apache I still seem to be running the old one. Nothing changes. I removed phpinfo() and ini_set() from the php.ini but I still can't use them. # service httpd -k restart [Fri Oct 26 15:27:10 2012] [warn] module hostinglimits_module is already loaded, skipping [Fri Oct 26 15:27:10 2012] [warn] NameVirtualHost 127.0.0.1:8081 has no VirtualHosts There is also no php.ini files under the vhosts or .htaccess. # /usr/bin/php -v PHP 5.3.15 (cgi-fcgi) (built: Aug 4 2012 21:33:58) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies with eAccelerator v0.9.6.1, Copyright (c) 2004-2010 eAccelerator, by eAccelerator with the ionCube PHP Loader v4.2.2, Copyright (c) 2002-2012, by ionCube Ltd., and with Zend Guard Loader v3.3, Copyright (c) 1998-2010, by Zend Technologies with Suhosin v0.9.33, Copyright (c) 2007-2012, by SektionEins GmbH and # /usr/local/bin/php -v PHP 5.3.15 (cli) (built: Aug 4 2012 21:34:27) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies with eAccelerator v0.9.6.1, Copyright (c) 2004-2010 eAccelerator, by eAccelerator with the ionCube PHP Loader v4.2.2, Copyright (c) 2002-2012, by ionCube Ltd., and with Zend Guard Loader v3.3, Copyright (c) 1998-2010, by Zend Technologies with Suhosin v0.9.33, Copyright (c) 2007-2012, by SektionEins GmbH Nothing shows up in the error logs either. The only errors we get are under the vhost's with error_log saying phpinfo and ini_set are disabled. EDIT: Both php binaries use the same php.ini file EDIT: Running php as mod_fgcid.so with suexec EDIT: From SSH I see the correct values for PHP from the php.ini file being loaded from both binaries When using php from apache [26-Oct-2012 20:25:34 UTC] PHP Warning: phpinfo() has been disabled for security reasons in /home/jake/public_html/phpinfo.php on line 1 EDIT: /usr/bin/php is the correct PHP file. Forgot to mention. It is the one in the wrapper script.

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• Increase text size in Ubuntu due to having large resolution/monitors

  - by Sridhar Ratnakumar

  I have 24" dual monitors with 1920x1080 resolution on both of them. Consequently the text appears so small. I use the following text-intensive applications frequently: Web browser (Google Chrome) IDE (Komodo) Terminal (Gnome Terminal) Email (Thunderbird) I can configure text size on IDE, Terminal and Email. But for Chrome, it is not a good idea to set proportional font size because often one wants to see the entire (not just proportional fonts) site to be zoomed. So I am asking: Is it possible to increase DPI in Ubuntu (much like on Windows) so as to increase the text size across all apps? OR Is it possible to set permanent 'zoom' in Google Chrome, using a third-party extension maybe?

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• SORT empties my file?

  - by Jonathan Sampson

  I'm attempting to sort a csv on my machine, but I seem to be erasing the contents each time I use the sort command. I've basically created a copy of my csv lacking the first row: sed '1d' original.csv > newcopy.csv To confirm that my new copy exists lacking the first row I can check with head: head 1 newcopy.csv Sure enough, it finds my file and shows me the original second now (now first row). My csv consists of numerous values seperated by commas: Jonathan Sampson,,,,[email protected],,,GA,United States,, Jane Doe,Mrs,,,[email protected],,,FL,United States,32501, As indicated above, some fields are empty. I want to sort based upon the email address field, which is either 4, or 5 - depending on whether the sort command uses a zero-based index. So I'm trying the following: sort -t, +4 -5 newcopy.csv > newcopy.csv So I'm using -t, to indicate that my fields are terminated by the comma, rather than a space. I'm not sure if +4 -5 actually sorts on the email field or not - I could use some help here. And then newcopy.csv > newcopy.csv to overwrite the original file with new sort results. After I do this, if I try to read in the first line: head 1 newcopy.csv I get the following error: head: cannot open `1' for reading: No such file or directory == newcopy.csv <== Sure enough, if I check my directory the file is now empty, and 0 bytes.

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• How to force screen resolution on CentOS machine

  - by jackhab

  I have CeontOS machines connected to LCD via KVM which causes failure to properly detect screen resolution and I'm stuck with 800x600 until I reset X server with the LCD connected directly to the PC. How can I enforce higher screen resolutions? Thanks.

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• libpam-ldapd not looking for secondary groups

  - by Jorge Suárez de Lis

  I'm migrating from libpam-ldap to libpam-ldapd. I'm having some trouble gathering the secondary groups from LDAP. On libpam-ldap, I had this on the /etc/ldap.conf file: nss_schema rfc2307bis nss_base_passwd ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es nss_base_shadow ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es nss_base_group ou=Groups,ou=CITIUS,dc=inv,dc=usc,dc=es nss_map_attribute uniqueMember member The mapping is there because I'm using groupOfNames instead of groupOfUniqueNames LDAP class for groups, so the attribute naming the members is named member instead of uniqueMember. Now, I want to do the same using libpam-ldapd but I can't get it to work. Here's the relevant part of my /etc/nslcd.conf: base passwd ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es base shadow ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es base group ou=Groups,ou=CITIUS,dc=inv,dc=usc,dc=es map group uniqueMember member And this is the debug output from nslcd, when a user is authenticated: nslcd: [8b4567] DEBUG: connection from pid=12090 uid=0 gid=0 nslcd: [8b4567] DEBUG: nslcd_passwd_byuid(4004) nslcd: [8b4567] DEBUG: myldap_search(base="ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es", filter="(&(objectClass=posixAccount)(uidNumber=4004))") nslcd: [8b4567] DEBUG: ldap_initialize(ldap://172.16.54.31/) nslcd: [8b4567] DEBUG: ldap_set_rebind_proc() nslcd: [8b4567] DEBUG: ldap_set_option(LDAP_OPT_PROTOCOL_VERSION,3) nslcd: [8b4567] DEBUG: ldap_set_option(LDAP_OPT_DEREF,0) nslcd: [8b4567] DEBUG: ldap_set_option(LDAP_OPT_TIMELIMIT,10) nslcd: [8b4567] DEBUG: ldap_set_option(LDAP_OPT_TIMEOUT,10) nslcd: [8b4567] DEBUG: ldap_set_option(LDAP_OPT_NETWORK_TIMEOUT,10) nslcd: [8b4567] DEBUG: ldap_set_option(LDAP_OPT_REFERRALS,LDAP_OPT_ON) nslcd: [8b4567] DEBUG: ldap_set_option(LDAP_OPT_RESTART,LDAP_OPT_ON) nslcd: [8b4567] DEBUG: ldap_simple_bind_s("uid=ubuntu,ou=Applications,ou=CITIUS,dc=inv,dc=usc,dc=es","*****") (uri="ldap://172.16.54.31/") nslcd: [8b4567] connected to LDAP server ldap://172.16.54.31/ nslcd: [8b4567] DEBUG: ldap_result(): end of results nslcd: [7b23c6] DEBUG: connection from pid=15906 uid=0 gid=2000 nslcd: [7b23c6] DEBUG: nslcd_pam_authc("jorge.suarez","","su","***") nslcd: [7b23c6] DEBUG: myldap_search(base="ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es", filter="(&(objectClass=posixAccount)(uid=jorge.suarez))") nslcd: [7b23c6] DEBUG: ldap_initialize(ldap://172.16.54.31/) nslcd: [7b23c6] DEBUG: ldap_set_rebind_proc() nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_PROTOCOL_VERSION,3) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_DEREF,0) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_TIMELIMIT,10) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_TIMEOUT,10) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_NETWORK_TIMEOUT,10) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_REFERRALS,LDAP_OPT_ON) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_RESTART,LDAP_OPT_ON) nslcd: [7b23c6] DEBUG: ldap_simple_bind_s("uid=ubuntu,ou=Applications,ou=CITIUS,dc=inv,dc=usc,dc=es","*****") (uri="ldap://172.16.54.31/") nslcd: [7b23c6] connected to LDAP server ldap://172.16.54.31/ nslcd: [7b23c6] DEBUG: ldap_initialize(ldap://172.16.54.31/) nslcd: [7b23c6] DEBUG: ldap_set_rebind_proc() nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_PROTOCOL_VERSION,3) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_DEREF,0) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_TIMELIMIT,10) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_TIMEOUT,10) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_NETWORK_TIMEOUT,10) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_REFERRALS,LDAP_OPT_ON) nslcd: [7b23c6] DEBUG: ldap_set_option(LDAP_OPT_RESTART,LDAP_OPT_ON) nslcd: [7b23c6] DEBUG: ldap_simple_bind_s("uid=jorge.suarez,ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es","*****") (uri="ldap://172.16.54.31/") nslcd: [7b23c6] connected to LDAP server ldap://172.16.54.31/ nslcd: [7b23c6] DEBUG: myldap_search(base="uid=jorge.suarez,ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es", filter="(objectClass=posixAccount)") nslcd: [7b23c6] DEBUG: ldap_unbind() nslcd: [3c9869] DEBUG: connection from pid=15906 uid=0 gid=2000 nslcd: [3c9869] DEBUG: nslcd_pam_sess_o("jorge.suarez","uid=jorge.suarez,ou=People,ou=CITIUS,dc=inv,dc=usc,dc=es","su","/dev/pts/7","","jorge.suarez") It seems to me that it won't even try to look for groups. What I am doing wrong? I can't see anything relevant to my problem information on the docs. I'm probably not understanding how the map option works.

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• Why isn't "(ulimit -d 1000; firefox) &" working?

  - by MaxB

  I'm trying to limit the memory usage of firefox to prevent it from stalling the whole system with problematic web sites. I tried, in bash: (ulimit -d 1000; firefox) & This should limit the memory usage to 1000kB. Then I opened YouTube, and noticed, in top, that firefox is using 2.6% of the memory, or about 200MB, and not crashing. Clearly the limit is being ignored. Why is that, and how can I enforce it correctly?

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• Postfix multiple checks

  - by xBlue

  I want to achieve the following with Postfix: Run all emails through a black list Allow any clients sending to a list of domains Allow some clients sending to any domain This is what I have: (postfix is on 10.0.8.0 and some of the senders are 10.0.8.0 and 10.0.9.0) mynetworks_style = subnet smtpd_recipient_restrictions = check_recipient_access sqlite:/etc/postfix/access-bl.query, check_client_access hash:/etc/postfix/trusted_clients, check_recipie nt_access hash:/etc/postfix/local_domains, reject_unauth_destination, permit So, right now the black list works. File /etc/postfix/trusted_clients contains who can send anywhere (3), file /etc/postfix/local_domains contains where you can send (2). Those two are fine, they return properly. My problem is getting all three working together. Not sure if it's an ordering issue. Currently sending a test from 10.0.9.17 and I get Relay access denied. If I add: mynetworks = 10.0.8.0/24 10.0.9.0/24 then anyone can send anywhere, so #2 is not working. Postfix version is 2.10 on Ubuntu 14.04. Any ideas?

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• Disable user_deny.db in Cyrus/imapd

  - by netmano

  We have a cyrus 2.4.12 on Debian, we use packages, rather than building each software ourselves. I am getting the this "log" constantly, a lot of, various users, and 8-10 times per user request: fetching user_deny.db entry for 'user123' I have searched for it, but haven't found a real solution, there were some patches for 2.3.xx, but we don't want ot build it, we prefer to use packages. Is there any solution to disable the user_deny.db at all. We don't need this feature. It wastes the CPU as disk.

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• How to execute a shell script on startup?

  - by vijay.shad

  I have create a script to start a server(my first question). Now I want it to run on the system boot and start the defined server. What should I do to get this done? My findings tell me put this file in /etc/init.d location and it will execute when the system will boot. But I am not able to understand how the first argument on the startup will be start? Is this predefined somewhere to use start as $1? If I want to have a case startall that will start all the servers in the script, then what are the options I can manage. My Script is like this: #!/bin/bash case "$1" in start) start ;; stop) stop ;; restart) $0 stop $0 start ;; *) echo "usage: $0 (start|stop|restart)" ;; esac

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• Dovecot Virtual Users and Users Domain Mapping

  - by Stojko

  I have successfully compiled, configured and ran Dovecot with virtual users feature. Here's part of my /etc/dovecot.conf configuration file: mail_location = maildir:/home/%d/%n/Maildir auth default { mechanisms = plain login userdb passwd-file { args = /home/%d/etc/passwd } passdb passwd-file { args = /home/%d/etc/shadow } socket listen { master { path = /var/run/dovecot/auth-worker mode = 0600 } } } I faced one issue I can't resolve myself. Is there anyway to create users' domains mapping and provide username in mail_location? Examples: 1. currently I have /home/domain.com/user/Maildir 2. I'd like to have /home/USER/domain.com/user/Maildir Can I achieve this somehow? Greets, Stojko

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• Apache2: Trying to map a subdomain to a subdirectory

  - by user1561753

  So basically I want to have: sub.domain.com/anything - domain.com/asub/anything I'm a bit new to this and a bit confused. The first thing I did was configure my DNS settings so sub.domain.com goes to domain.com using a CNAME (would an A record and the IP be better?) Next I went into my VirtualHost file and have: RewriteEngine on RewriteCond %{HTTP_HOST} www.(.+) [NC] RewriteRule ^/(.*) http://domain.com/$1 [R] RewriteCond %{HTTP_HOST} ^sub.domain.com RewriteRule ^/(.*) http://domain.com/asub/$1 [R] So the first rule is meant to handle www. and making sure that is caught correctly and it works. The second rule is what I've added for the subdomain mapping and it doesn't seem to be doing anything

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• gray dotted box outlining desktop icons on windows 7

  - by Max

  I occasionally get this problem where for some reason small, dotted gray boxes appear around my desktop icons. It always goes away after I restart, but I'm just curious what it is. I don't know of anything in particular I do to cause it, but it only outlines icons I click, and it only does it to one icon at a time. The picture below is the box on the recycle bin. IF I click a different icon it'll happen to that one instead. I'm using windows 7. Thank you.

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• What is the best MTA setup for a home/laptop computer (*not* server)?

  - by thomasrutter

  Hello, What is a good MTA (e.g. Postfix or something else) setup for a home computer behind a NAT, or a laptop that is not always online? I've read a lot of Postfix tutorials on how to set it up this way or that, but they are usually geared towards computers that are servers ie they have a static IP have a domain name are always connected to the same network My requirements are, I guess: Ability to redirect mail for local users to another server of my choosing. No listening for incoming SMTP connections - outgoing only Ability to route outgoing mail via an external SMTP server with authentication (and perhaps encryption) If not Postfix, I need an MTA which can queue up mails in case it temporarily has no internet connection.

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• What are my options with a downloaded Rackspace cloud image?

  - by schnippy

  I've got an unresponsive Rackspace slice that has defied all attempts at accessing. I created an emergency image from this and deleted it, downloading the files that compromise the image to a local source. There are a number of files / assets I would still like to recover from this server if possible but not sure exactly what I can do with the image files, if anything. Here's the files I have, for what its worth: emergency_########_######_cloudserver########.tar.gz.0 (5gb) emergency_########_######_cloudserver########.tar.gz.1 (5gb) emergency_########_######_cloudserver########.tar.gz.2 (5gb) emergency_########_######_cloudserver########.tar.gz.3 (50mb) emergency_########_######_cloudserver########.yml (25kb) Is it possible to mount this image as a drive? Are there other forensic recovery options?

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• Top/left edges of screen, in Virtualbox, act like bottom/right edges

  - by Ken

  I have Virtualbox running on Windows Vista, and Debian running inside Virtualbox. Everything's running great, for the most part. Everything looks correct. But when I'm in full-screen mode, the top edge seems to act (to the mouse) like it's the bottom edge, and the left edge seems to act like the right edge. For example, if I click in the middle of the desktop and drag left, as if to select some icons, when I hit the very leftmost pixel of the screen, the selection (but not the mouse pointer) jumps to the far right edge of the screen). For the left edge, it's not such a big deal, but not having the top edge is kind of annoying: it means I can't select things from the menu in my top panel by slamming the mouse against the top of the screen. Anyone seen this before? Is there some way to make this work? Thanks!

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• when to set up a mail server?

  - by ajsie

  i've got a web service up and running with apache on ubuntu server in a vps from a hosting company (long sentence:)). i wonder when someone would like to set up a own mail server (postfix + dovecot)? cause i just want to be able to: send emails (account activation etc) to my users with php - the emails have to appear to come from the website's domain receive emails from my users (customer support etc) using Apple Mail/Microsoft Outlook. could this be accomplished with an email hosting company? are there situations i would benefit from setting up an own mail server on ubuntu?

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• Debugging Samba/CUPS printer sharing with Windows

  - by mrdrbob

  I've got a HP Deskjet hooked up to a Slackware 12.2 box. I've got CUPS set up and can print a test page from the box just fine. I've also got Samba set up and have a couple file shares that work fine. I'm trying to share that HP Deskjet out via Samba, but I can't get it to show up in any Windows system. I see the server and its file shares in Windows networking, but when I open the Printers, no printer shows up. Running net view \\servername from the command line lists the file shares, but no printers. Here's the pertinent part of my smb.conf, if that helps: [global] workgroup = HOMENET security = share hosts allow = 192.168.1. 192.168.2. 127. load printers = yes printcap name = cups printing = cups log file = /var/log/samba.%m max log size = 50 [printers] comment = All Printers path = /var/spool/samba browseable = no public = yes writable = no printable = yes guest only = yes Can anyone give me some pointers as to where to start looking for potential causes? Update: Running testparm shows no errors. Here's the output (minus the file shares): [global] workgroup = HOMENET security = SHARE log file = /var/log/samba.%m max log size = 50 printcap name = cups hosts allow = 192.168.1., 192.168.2., 127. [printers] comment = All Printers path = /var/spool/samba guest only = Yes guest ok = Yes printable = Yes browseable = No

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