SSH remote connection in cron is refused
Problem :I was creating a simple cron job to connect to from remote-server-1 to remote-server-2.Testing the job with direct call or run-parts was OK# direct call to my script /home/admin/myscript.sh #...
View ArticleCannot process volume group "xxx" on boot
Le problème :Je joue avec des VM en ce moment, copie, clone, etc... et lors de la mise au point je me suis amusé à modifier le nom des volumes groups.... Dont le volume group qui hébergait la partition...
View ArticleBash and SSH completion with Include directive
Problem :I use bash as shell and usually the autocompletion (with bash-completion) works well.Until I create some Include files...Solution :Not a final one for every one, but a quick workaround is :put...
View ArticlePEER_DNS=no on debian or how to prevent a specific DHCP interface to update...
Problem :On Debian, do not update resolv.conf (DNS) when we have multiple DHCP network interfaces.Solution :A first link : Never update resolv.conf with DHCP clientBut we don't want to never update,...
View ArticleSSH remote connection in cron is refused
Problem :I was creating a simple cron job to connect to from remote-server-1 to remote-server-2.Testing the job with direct call or run-parts was OK# direct call to my script /home/admin/myscript.sh #...
View ArticleTomcat, NIO, Hanging et CLOSE_WAIT
Problem :We are testing a springboot application in AWS with ELB in front.After a while of load-testing, the application was hanging :HTTP 504 error code from Jmeter clientHTTP 502 if we raise ELB...
View ArticleSystemD and tomcat hang on startup
Problem :I used robertdebock/ansible-role-tomcat to install a Tomcat instance using Ansible. Works well until I deploy an application on it. Then java process hangs with 100% system CPU.Starting with...
View ArticleMontage Samba et erreurs à côté de la plaque
Le problème :Dans deux cas, j'exécute la commande mount via ansible pour monter un partage samba sur deux clients Linux.Dans les deux cas, le montage est en échec pour cause :soit "CIFS VFS: validate...
View ArticleUpgrade debian et lost network
Problem :I manage a dedicated server in OVH and I upgrade my debian from jessie to buster. Upgrade works quite well (it seems...) and I try to restart.Server reboot fails as unreachable, fortunately...
View ArticleLogitech Media Server and Synology DS218play
Problem :Logitech media server is not supported anymore by Synology (bouuuuh.)Spotted by number of threads...
View ArticleBash and SSH completion with Include directive
Problem :I use bash as shell and usually the autocompletion (with bash-completion) works well.Until I create some Include files...Solution :Not a final one for every one, but a quick workaround is :put...
View ArticlePEER_DNS=no on debian or how to prevent a specific DHCP interface to update...
Problem :On Debian, do not update resolv.conf (DNS) when we have multiple DHCP network interfaces.Solution :A first link : Never update resolv.conf with DHCP clientBut we don't want to never update,...
View ArticleSSH remote connection in cron is refused
Problem :I was creating a simple cron job to connect to from remote-server-1 to remote-server-2.Testing the job with direct call or run-parts was OK# direct call to my script /home/admin/myscript.sh #...
View ArticleTomcat, NIO, Hanging et CLOSE_WAIT
Problem :We are testing a springboot application in AWS with ELB in front.After a while of load-testing, the application was hanging :HTTP 504 error code from Jmeter clientHTTP 502 if we raise ELB...
View ArticleSystemD and tomcat hang on startup
Problem :I used robertdebock/ansible-role-tomcat to install a Tomcat instance using Ansible. Works well until I deploy an application on it. Then java process hangs with 100% system CPU.Starting with...
View ArticleMontage Samba et erreurs à côté de la plaque
Le problème :Dans deux cas, j'exécute la commande mount via ansible pour monter un partage samba sur deux clients Linux.Dans les deux cas, le montage est en échec pour cause :soit "CIFS VFS: validate...
View ArticleUpgrade debian et lost network
Problem :I manage a dedicated server in OVH and I upgrade my debian from jessie to buster. Upgrade works quite well (it seems...) and I try to restart.Server reboot fails as unreachable, fortunately...
View ArticleLogitech Media Server and Synology DS218play
Problem :Logitech media server is not supported anymore by Synology (bouuuuh.)Spotted by number of threads...
View ArticleCannot create GC thread but a lot of memory
Problem :Launching a JVM I have the message : "Cannot create GC thread. Out of system resources"Enough memoryEnough swapEnough ulimitEnough threads-maxEnough CPUEvent extend the PID limit...Important...
View ArticleBash and the empty optional arguments on command line
Problem :Well, I know that having named parameter is better “-file=” etc..But for a simple task, I wanted to give :./mycommand arg1 arg2 ‘’ ‘’ arg5And pass those parameters to a function… Solution :Not...
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