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  • FreeRADIUS Default Answer

    - by jinanwow
    We are using FreeRADIUS with a MySQL database, authenticating users. We ran into an issue where are MySQL database was slow causing the max number of threads to be reached. The issue with this is, when the server couldn't answer the requests as there were no threads avaiable, it sent the response of Access-Reject to the clients. Our devices cache client connections and periodically checks with the server to see if they should still be allowed or to remove them. The equipment is designed that if there is no response from the server and a client is connected it will remain connected. The issue is, when the radius server is at its max threads, its default answer is to send access-reject (verified via packet capture), however we would like to change the default behavior to just ignore the request (keeping the clients connected). We have fixed the MySQL database issue for now, but I would like to change the default from Access-Reject, to just ignore the client altogeather. I have done research, but not able to find an answer to the question. Thanks in Advance.

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  • Cannot install CentOS 6.5 using UEFI usb boot

    - by Vaindil
    I am trying to dual-boot CentOS 6.5 on my desktop that is currently running Windows 8.1. I have two storage devices: an SSD that has my Windows installation, and an HDD that has all of my data. Both are formatted using GPT, and Windows boots using UEFI. I used the CentOS 6.5 live DVD (CentOS-6.5-x86_64-LiveDVD.iso) to create an EFI-bootable flash drive (it does boot properly in EFI mode). I receive an error, however, when CentOS is booting (error is below). I have a 6.4 boot DVD which boots as expected, but it does not boot in UEFI mode and therefore doesn't play nicely with my Windows installation (I have no way to access it, even using rEFInd or any other similar tools). What do I need to do to get the device to boot properly in UEFI mode? Kernel panic - not syncing: Attempted to kill init! Pid: 1, comm: init Not tainted 2.6.32-431.el6.x86_64 #1 Call Trace: [<ffffffff815271fa>] ? panic+0xa7/0x16f [<ffffffff81077622>] ? do_exit+0x862/0x870 [<ffffffff8118a865>] ? fput+0x25/0x30 [<ffffffff81077688>] ? do_group_exit+0x58/0xd0 [<ffffffff81077717>] ? sys_exit_group+0x17/0x20 [<ffffffff8100b072>] ? system_call_fastpath+0x16/0x1b drm_kms_helper: panic occurred, switching back to text console

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  • SSL error: error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch

    - by Tiffany Walker
    ERROR: SSL error: error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch STEPS: openssl genrsa -out SITE.TLD.key 2048 openssl req -new -key SITE.TLD.key -out SITE.TLD.csr (send CSR to SSL site to sign) add CERT to SITE.TLD.crt add CA to SITE.TLD.ca chained them: cat SITE.TLD.crt SITE.TLD.ca > chained.cert Any Idea what I am doing wrong? I am using LiteSpeed HTTPd

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  • 0% CPU in top for all processes, but load average > 1

    - by chrisdew
    On two different servers (with Ubuntu 12.04LTS AMD64) I have seen the following behaviour: op - 10:50:05 up 305 days, 21:17, 1 user, load average: 1.94, 2.52, 2.97 Tasks: 141 total, 2 running, 139 sleeping, 0 stopped, 0 zombie Cpu(s): 41.5%us, 6.5%sy, 0.0%ni, 51.8%id, 0.0%wa, 0.2%hi, 0.1%si, 0.0%st Mem: 8178432k total, 5753740k used, 2424692k free, 159480k buffers Swap: 15625208k total, 0k used, 15625208k free, 4905292k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 20 0 23928 2072 1216 S 0 0.0 0:56.42 init 2 root 20 0 0 0 0 S 0 0.0 0:00.01 kthreadd 3 root RT 0 0 0 0 S 0 0.0 0:01.23 migration/0 4 root 20 0 0 0 0 S 0 0.0 2:39.82 ksoftirqd/0 5 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/0 6 root RT 0 0 0 0 S 0 0.0 0:02.99 migration/1 7 root 20 0 0 0 0 S 0 0.0 2:32.15 ksoftirqd/1 8 root RT 0 0 0 0 S 0 0.0 0:00.00 watchdog/1 9 root RT 0 0 0 0 S 0 0.0 0:11.67 migration/2 10 root 20 0 0 0 0 S 0 0.0 29:00.34 ksoftirqd/2 The server is working fine, but top shows all processes as using 0% CPU. A reboot fixed this on an earlier machine, but I haven't yet tried it on this one. I have tried top several times, and so am sure that I haven't accidentally pressed '<' or '' to sort by a different column. Sorting the process list by all of the available columns, stills shows 0% CPU for all displayed processes. What is going on? If this a kernel bug? Update: If I use top -p <PID> for a know, busy process, top still displays 0% CPU for that process.

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  • File system concepts (df command)

    - by mkab
    I'm finding it difficult to understand some stuffs about the df command. Suppose I type df and I have the following output Filesystem 1k-blocks Used Avail Capacity Mounted on /dev/da0s1 some number some number number percentage /win /dev/da0s2 some number some number number percentage /win/home /dev/da0s3a some number some number number percentage / devfs some number some number number percentage /dev /dev/da0s3g some number some number number percentage /local /dev/da0s3h some number some number -number 102% /reste /dev/da0s3d some number some number number percentage /tmp /dev/da1s3f some number some number number percentage /usr /dev/da1s3e some number some number number percentage /var /dev/da1s1a some number some number number percentage /public Are the answers to the following questions correct? How many physical drives do I have? Ans: 2. da0s1 and da1s1 How many physical partitions on each disk? Ans: 8 for da0s1 and 1 for da1s1 How many BSD partition on each physical partition Ans: Impossible to determine. We have to use the -T to determine its type How is it possible for the file system /dev/da0s3h filled at 102%? And where is this overflowed data written?Ans: I have no idea for this one Thanks.

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  • How to report a bug against Ubuntu's upgrade process?

    - by Kim
    I just upgraded to lucid and discovered a nasty bug. It prevents the system from booting and took me hours to resolve. Now I'd like to report it along with the workaround I found. The only problem is: Where? Other such bugs have been filed against "update-manager", but that's just the GUI calling some scripts which do the real work. so what do I do? What should I substitute for XYZ in ubuntu-bug XYZ ?

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  • Migrate data from one server to another using rsync

    - by Leonid Shevtsov
    I'm moving from one VPS to another, and I figured that the simplest way to transfer data would be rsync. However, the data is owned by a user, www-data, which doesn't have ssh privileges, and I'd like it to be owned by the same (named) user on the target machine. Obviously I need all file permissions preserved. I have SSH access via another user with sudo privileges on both machines. Is this possible to do this with rsync?

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  • Calculate minimum ext3 partition size for certain amount of data

    - by Daniel Beck
    These following ext3 partitions contain identical data. As we can see, the larger the partition size, the more space is required for the same files: Filesystem 1K-blocks Used Available Use% Mounted on /dev/loop11 3965777 561064 3199964 15% [...] /dev/loop19 573029 543843 29186 95% [...] Filesystem Size Used Avail Use% Mounted on /dev/loop11 3.8G 548M 3.1G 15% [...] /dev/loop19 560M 532M 29M 95% [...] Filesystem Inodes IUsed IFree IUse% Mounted on /dev/loop11 1024000 1656 1022344 1% [...] /dev/loop19 1024000 1656 1022344 1% [...] I start with a partition of fixed size that possibly wasted a lot of space and I want to create a partition that is able to hold that data but with (almost) minimal size. How can I reliably calculate that minimal partition size needed for storing a certain amount of data? The amount of data changes over time, and I need to automate these calculations.

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  • How restore back up email files in qmail

    - by Maysam
    I have problem with restoring some old backup mail files in a mail server that uses qmail. The problem is, when I copy a new email file to the /cur directory, the number of emails in front of inbox increases, but when I click on the inbox, I don't see the newly copied email. I can only see the old emails. I also deleted maildirsize and courierimapuiddb files and they where automatically created again, but it didn't help and I cannot still see the email in my inbox. Is there something I am missing? How can I restore the backed up email files? Please note that when I copy the email files in /.sent-mail/cur directory, they are all displayed in my sent box, but that doesn't happen for inbox files in /cur directory.

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  • *nix OS that is easy to update to latest software

    - by rjstelling
    I need to configure a server (*nix) that runs our (bespoke) CMS and Applications. In the past I have defaulted to using Cent OS 5, but I find this outdated difficult to upgrade the software to the versions we require. For example, we need PHP 5.3, but CentOS 5 has 5.2. Updating is fine but breaks something else (normally MySQL support in PHP). Eventually it will get to a situation where I can't upgrade because of missing dependancies and incompatible versions. Error: Missing Dependency: httpd = 2.2.3-43.el5.centos.3 is needed by package httpd-devel-2.2.3-43.el5.centos.3.i386 (updates) Is there a better alternative OS for hassle free updates, I need: Apache 2.2.17 (the development version for apxs) MySQL 5.5.8 PHP 5.3.5

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  • How to copy symlinks to target as normal folders

    - by Marek
    Hi i have a folder with symlinks: marek@marek$ ls -al /usr/share/solr/ razem 36 drwxr-xr-x 5 root root 4096 2010-11-30 08:25 . drwxr-xr-x 358 root root 12288 2010-11-26 12:25 .. drwxr-xr-x 3 root root 4096 2010-11-24 14:29 admin lrwxrwxrwx 1 root root 14 2010-11-24 14:29 conf -> /etc/solr/conf i want to copy it to ~/solrTest but i want to copy files from symlink as well when i try to cp -r /usr/share/solr/ ~/solrTest i will have symlink here: marek@marek$ ls -al ~/solrTest razem 36 drwxr-xr-x 5 root root 4096 2010-11-30 08:25 . drwxr-xr-x 358 root root 12288 2010-11-26 12:25 .. drwxr-xr-x 3 root root 4096 2010-11-24 14:29 admin lrwxrwxrwx 1 root root 14 2010-11-24 14:29 conf -> /etc/solr/conf

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  • Using find and tar with files with special characters in the name

    - by Costi
    I want to archive all .ctl files in a folder, recursively. tar -cf ctlfiles.tar `find /home/db -name "*.ctl" -print` The error message : tar: Removing leading `/' from member names tar: /home/db/dunn/j: Cannot stat: No such file or directory tar: 74.ctl: Cannot stat: No such file or directory I have these files: /home/db/dunn/j 74.ctl and j 75. Notice the extra space. What if the files have other special characters? How do I archive these files recursively?

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  • Estimating compressed file size using a list parameter

    - by Sai
    I am currently compressing a list of files from a directory in the following format: tar -cvjf test_1.tar.gz -T test_1.lst --no-recursion The above command will compress only those files mentioned in the list. I am doing this because this list is generated such that it fits a DVD. However, during compression the compression rate decreases the estimated file size and there is abundant space left in the DVD. This is something like a Knapsack algorithm. I would like to estimate the compressed file size and add some more files to the list. I found that it is possible to estimate file size using the following command: tar -cjf - Folder/ | wc -c This command does not take a list parameter. Is there a way to estimate compressed file size? I am also looking into options like perl scripts etc. Edit: I think I should provide more information since I have been doing a lot of web search. I came across a perl script(Link)that sort of emulates the Knapsack algorithm. The current problem with the above mentioned script is that it splits the files in their original state. When I compress the files after splitting them, there are opportunities for adding more files which I consider to be inefficient. There are 2 ways I could resolve the inefficiency: a) Compress individual files and save them in a directory using a script. The compressed file could provide a best estimate. I could generate a script using a folder of compressed files and use them on the uncompressed ones. b) Check whether the compressed file's size is less than the required size. If so, I should keep adding files until I meet the requirement. However, the addition of new files to the compressed file is an optimization problem by itself.

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  • Will Vimperator always be this awesome?

    - by Martín Fixman
    About a week ago I started using Vim, and fell completely in love with it. However, today I installed the Vimperator extension on Firefox, and through there are some problems (all of which will be solved after using it until I get used to it), I found it great. However, I'm still in the "Holy fuck this is totally awesome" phase of software testing, and in some time will go back to the "I have this thing" phase. Just to be sure, will it be a good idea to use it regularly? I want to hear experiences about users and ex-users.

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  • Symbol lookup error while starting pidgin in Arch

    - by Hossein Mobasher
    I have just installed pidgin from the source code that i downloaded from pidgin site, it compile correctly with using below commands : ./configure --disable-gtkspell ; make ; make install but, when i try to start pidgin from terminal, occurres an error :? pidgin: symbol lookup error: /usr/lib/libfarstream-0.1.so.0: undefined symbol: g_key_file_free how can i solve this problem ? Thanks for your attention :)

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  • Heartbeat won't start up from a cold boot when a failed node is present

    - by Matthew
    I currently have two ubuntu servers running Heartbeat and DRBD. Let's say one node is down... The servers are directory connected with a 1000Mbps cross over cable on eth1 and have access to a IP camera LAN on eth0 The node that is still functioning won't start up heartbeat and provide access to the drbd resource. I have to manually restart heartbeat by "sudo service heartbeat restart" to get everything up and running. How can I get it to start fine from a cold start? Here is the my ha.cf and some material from the syslog... If I'm missing any information that might be of some help. http://pastebin.com/rGvzVSUq <--- Syslog http://pastebin.com/VqpaPSb5 <--- ha.cf

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  • Intel cpu hyperthreading on or off for ibm db2?

    - by rtorti19
    Has anyone ever done any database performance comparisons with hyper-threading enabled vs disabled? We are running ibm db2 and I'm curious if anyone has an recommendations for enabling hyper-threading or not. With hyper-threading enabled it makes it quite difficult to do capacity planning for cpu usage. For example. "With 8 physical cores represented as 16 "threads" on the OS and a cpu-bound workload, does that mean when your cpu usage hit's 50% you are actually running at 100%." What real benefits do I gain with leaving hyper-threading enabled on an intel server running DB2? Does hyper-threading help if you're workload is truly disk IO bound? If so, up to what percentage? These are the types of questions I'm trying to answer. Any thoughts?

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  • Give root password for maintenance

    - by Jevgeni Smirnov
    After entering shutdown now in terminal I get everything running normally and then: All processes ended withing 2 seconds...done INIT: Going single user INIT: Sending processes the TERM signal INIT: Sending processes the KILL signal Give root password for maintenance(or.... I press Ctrl+D, and it shows me login screen Debian. Shutdown through GUI works properly. UPDATE 1 It seems some process hangs. Moreover I'v managed to poweroff server through several retries. Recently i'v installed only ntp and ntpdate. Nothing more. I suppose it might be it conflicting with iptables.

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  • Tomcat 7 on Ubuntu 12.04 with JRE 7 not starting

    - by Andreas Krueger
    I am running a virtual server in the web on Ubuntu 12.04 LTS / 32 Bit. After a clean install of JRE 7 and Tomcat 7, following the instructions on http://www.sysadminslife.com, I don't get Tomcat 7 up and running. > java -version java version "1.7.0_09" Java(TM) SE Runtime Environment (build 1.7.0_09-b05) Java HotSpot(TM) Client VM (build 23.5-b02, mixed mode) > /etc/init.d/tomcat start Starting Tomcat Using CATALINA_BASE: /usr/local/tomcat Using CATALINA_HOME: /usr/local/tomcat Using CATALINA_TMPDIR: /usr/local/tomcat/temp Using JRE_HOME: /usr/lib/jvm/java-7-oracle Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar > telnet localhost 8080 Trying ::1... Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection refused netstat sometimes shows a Java process, most of the times not. If it does, nothing works either. Does anyone have a solution or encountered similar situations? Here are the contents of catalina.out: 16.11.2012 18:36:39 org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/lib/jvm/java-6-oracle/lib/i386/client:/usr/lib/jvm/java-6-oracle/lib/i386:/usr/lib/jvm/java-6-oracle/../lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib 16.11.2012 18:36:40 org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["http-bio-8080"] 16.11.2012 18:36:40 org.apache.coyote.AbstractProtocol init INFO: Initializing ProtocolHandler ["ajp-bio-8009"] 16.11.2012 18:36:40 org.apache.catalina.startup.Catalina load INFO: Initialization processed in 1509 ms 16.11.2012 18:36:40 org.apache.catalina.core.StandardService startInternal INFO: Starting service Catalina 16.11.2012 18:36:40 org.apache.catalina.core.StandardEngine startInternal INFO: Starting Servlet Engine: Apache Tomcat/7.0.29 16.11.2012 18:36:40 org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory /usr/local/tomcat/webapps/manager Here come the results of ps -ef, iptables --list and netstat -plut: > ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 Nov16 ? 00:00:00 init root 2 1 0 Nov16 ? 00:00:00 [kthreadd/206616] root 3 2 0 Nov16 ? 00:00:00 [khelper/2066167] root 4 2 0 Nov16 ? 00:00:00 [rpciod/2066167/] root 5 2 0 Nov16 ? 00:00:00 [rpciod/2066167/] root 6 2 0 Nov16 ? 00:00:00 [rpciod/2066167/] root 7 2 0 Nov16 ? 00:00:00 [rpciod/2066167/] root 8 2 0 Nov16 ? 00:00:00 [nfsiod/2066167] root 119 1 0 Nov16 ? 00:00:00 upstart-udev-bridge --daemon root 125 1 0 Nov16 ? 00:00:00 /sbin/udevd --daemon root 157 125 0 Nov16 ? 00:00:00 /sbin/udevd --daemon root 158 125 0 Nov16 ? 00:00:00 /sbin/udevd --daemon root 205 1 0 Nov16 ? 00:00:00 upstart-socket-bridge --daemon root 276 1 0 Nov16 ? 00:00:00 /usr/sbin/sshd -D root 335 1 0 Nov16 ? 00:00:00 /usr/sbin/xinetd -dontfork -pidfile /var/run/xinetd.pid -stayalive -inetd root 348 1 0 Nov16 ? 00:00:00 cron syslog 368 1 0 Nov16 ? 00:00:00 /sbin/syslogd -u syslog root 472 1 0 Nov16 ? 00:00:00 /usr/lib/postfix/master postfix 482 472 0 Nov16 ? 00:00:00 qmgr -l -t fifo -u root 520 1 0 Nov16 ? 00:00:04 /usr/sbin/apache2 -k start www-data 523 520 0 Nov16 ? 00:00:00 /usr/sbin/apache2 -k start www-data 525 520 0 Nov16 ? 00:00:00 /usr/sbin/apache2 -k start www-data 526 520 0 Nov16 ? 00:00:00 /usr/sbin/apache2 -k start tomcat 1074 1 0 Nov16 ? 00:01:08 /usr/lib/jvm/java-6-oracle/bin/java -Djava.util.logging.config.file=/usr/ postfix 1351 472 0 Nov16 ? 00:00:00 tlsmgr -l -t unix -u -c postfix 3413 472 0 17:00 ? 00:00:00 pickup -l -t fifo -u -c root 3457 276 0 17:31 ? 00:00:00 sshd: root@pts/0 root 3459 3457 0 17:31 pts/0 00:00:00 -bash root 3470 3459 0 17:31 pts/0 00:00:00 ps -ef > iptables --list Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT tcp -- anywhere anywhere tcp dpt:http-alt ACCEPT tcp -- anywhere anywhere tcp dpt:8005 ACCEPT tcp -- anywhere anywhere tcp dpt:http-alt Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination > netstat -plut Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 *:smtp *:* LISTEN 472/master tcp 0 0 *:3213 *:* LISTEN 276/sshd tcp6 0 0 [::]:smtp [::]:* LISTEN 472/master tcp6 0 0 [::]:8009 [::]:* LISTEN 1074/java tcp6 0 0 [::]:3213 [::]:* LISTEN 276/sshd tcp6 0 0 [::]:http-alt [::]:* LISTEN 1074/java tcp6 0 0 [::]:http [::]:* LISTEN 520/apache2

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  • Ubuntu Server UFW NAT Issues

    - by William Fleming
    *nat :POSTROUTING ACCEPT [0:0] -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE -A ufw-before-input -i tun0 -j ACCEPT -A ufw-before-output -i tun0 -j ACCEPT -A ufw-before-forward -s 10.8.0.0/24 -j ACCEPT -A ufw-before-forward -d 10.8.0.0/24 -j ACCEPT This input into my before.rules file stops me being able to ping the outside world. Before its fine i can ping google.co.uk after cant get out. Is there something wrong in my syntax here or what is the issue...? Im just trying to NAT my VPN so i can get internet access. Any thoughts would be greatly appreciated. Thanks William

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  • Postfix count relayed messages per user

    - by Martino Dino
    I would like to know if it's possible to count the outgoing (relayed) messages on a per user basis in postfix. I'm managing a small commercial SMTP relay and decided that it would be nice to have a detailed daily report on how much mail a single user have sent (and eventually enforce some limits) possibly in realtime. I've looked almost everywhere and started to think that writing my own milter would be the way to go... Are you aware of anything that already exists for postfix that can count and report relayed mail for authenticated users (a script, milter or whatever)?

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  • Video desktop recording and multiple WM displays, capturing nonactive display

    - by okobaka
    Two WM running on one local machine. WM - Fluxbox. Using ffmpeg to record desktop. ffmpeg -an -f x11grab -s 1920x1080 -r 25 -i :1.0 -sameq /tmp/video.mkv On one display everything works great, but not when i have another WM display startx -- :1. What i am doing right now is to switch ctrl+alt+f8 to display:1.0, and start recording with ffmpeg. Everything is fine until i switch back ctrl+alt+f7 to display:0.0, WM and captured video image freezes, but when i switch back ctrl+alt+f8 to display:1.0, it unfreeze and continue recording. So, how to make display:1.0 not to freeze, while on display:0.0? Tested some more. open [display 0.0] open [display 0.1] from [display 0.0] = open => [display 0.2] same problem For different users and same users results are the same. ffmpeg keeps recording that paused image. Looks like WM root window need to be active, to be recorded.

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