[CentOS] Understanding FS ACLs
I have problem understanding FS ACLs.Can someone explain me why the following behaviour occur? Let's suppose that we have a /shared directory we want to give rwx access to admins group. setfacl -m d:g:admins:rwx shared [r...@rh1 /]# getfacl shared # file: shared # owner: root # group: root user::rwx group::r-x other::--- default:user::rwx default:group::r-x default:group:admins:rwx default:mask::rwx default:other::--- [r...@rh1 /]# su - jack [j...@rh1 ~]$ id uid=500(jack) gid=507(admins) groups=507(admins) context=root:system_r:unconfined_t:SystemLow-SystemHigh [j...@rh1 ~]$ cd /shared/ -bash: cd: /shared/: Permission denied ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Guidance on Linux Kernel/OS Programming for Beginners
Regarding your mail... I'm also a sysadmin who also what to push the limits further ... i remember some C/C++ from colllege and some java and shell scripting from my current job as java programmer . Feel free to contact me in the case you have some plans to start a project do to something the described direction... I'll also want to do something in the direction specified Thanks, Silviu Hutanu System Administrator/Java Developer http://nepatec.de If if you look for someone to help with something ...I will be happy to help with something . On Sun, Aug 22, 2010 at 10:18 PM, linux-crazy wrote: > Hi List, > > > I am working on LINUX for the past six years , and am a core linux > guys since i started my career on linux . Working more on Redhat / > centos / Fedora based distribution system administration . with some > basic bash scripting knowledge. > > Now am looking to deep dive into programming to contribute or > innovate some thing new on linux operating system or kernel space > (More importantly on kvm virtualization front since am an expert on > virtualization). So i need your guidance to start my new career on > linux programming front . As of now am planned to start with below > sequences . > > > C > C++ > Linux kernel Programming > python > Java > > Kindly provide me some good web links or beginner to advanced docs > for the above languages to start , also correct me if am wrong any > where . > > Awaiting for your valuable input > > Regards, > > lingu > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] netstat - kill by pid ?
Hi ,
You can use this:
kill -9 `netstat -antp|grep 8080|grep java|awk '{ print $7 }'|cut -d'/' -f
1`
But if had to do the same thing I would search in the running processes
instead using netstat, anyway you can extract the pid in the same way.
Silviu
On Tue, Sep 28, 2010 at 7:14 PM, Carlos S wrote:
> I am writing a small script to kill process(es) listening on
> particular port number. Here I am particularly looking at Java
> servlet-containers like Tomcat and JBoss, which sometimes don't
> complete their shutdown process and it still shows up as running
> process with ps or netstat. This needs to be kill-ed and for that
> knowing pid of that process is necessary. The netstat by default
> doesn't give only pid(s), so one has to use sed/awk/tr like utility to
> extract pid info. Does anyone know any program/utility which gives
> pid(s) based on listening port numbers? Or is there any option in
> netstat that I am missing?
>
> Thanks,
> CS.
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Re: [CentOS] difference between stickybit SUID and SGID
Here are my personal notes regarding these special perms : Octal perm : 4000 (chmod +s ) SUID Other users execute this file as owner of file Octal perm: 2000 (chmod +g ) GUID Other users execute this as group of the file/dir (It can be applyied to directories ) Ocatl perm: 1000Sticky bit (Ensuring that users cannot delete other users files in a directory) SUID : chmod u+s file GUID: chmod u+g dir Sticky bit: chmod u+f file/dir Best regards, Silviu Hutanu -- Nepatec Soft SRL - it consulting & software N. Titulescu 4 500010 Brasov, Romania tel/fax: +40 (0)368 003 100 www.nepatec.de On Fri, Jul 9, 2010 at 3:03 PM, Agnello George wrote: > i had a small query , whant is the difference between stickybit SUID and > SGID , is there any proper site where i can get a clear understanding . > > > -- > Regards > Agnello D'souza > > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] 2X app server alternatives
Does anyone know any oss alternatives to 2x aplication server ? Regards, Silviu Hutanu ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] KVM iptables rules
After I installed kvm I noticed that some rules are appended automatically by some tools that come with kvm packages(I installed all KVM group with yum) . The problem is that after I appended my rules I and used the /etc/init.d/iptables script to save changes in /etc/sysconfig/iptables I saw that after restarted the machine that tool appended the rules once again ... so now I have double entries for kvm rules. Does anyone know how can I block this mysterious tool to append rules in my tables ? Kind Regards, Silviu Hutanu ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] KVM iptables rules
In this way I will disable the virtual NIC's , but I steel need networking :) . I just want to get rid of the iptables rules inserted at boot by libvirt tools. On Sun, Jul 25, 2010 at 8:25 AM, aditya hilman wrote: > On Sun, Jul 25, 2010 at 2:20 AM, Silviu Hutanu > wrote: > > After I installed kvm I noticed that some rules are appended > automatically > > by some tools that come with kvm packages(I installed all KVM group with > > yum) . > > The problem is that after I appended my rules I and used the > > /etc/init.d/iptables script to save changes in /etc/sysconfig/iptables I > saw > > that after restarted the machine that tool appended the rules once again > ... > > so now I have double entries for kvm rules. > > Does anyone know how can I block this mysterious tool to append rules in > my > > tables ? > > > > Kind Regards, > > > > Silviu Hutanu > > > > > > > > > > > > > > ___ > > CentOS mailing list > > CentOS@centos.org > > http://lists.centos.org/mailman/listinfo/centos > > > > > > virsh net-destroy default > virsh net-undefine default > > -- > Regards, > Adit > http://simplyaddo.web.id > ym : science2rule > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
