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Linux Distributions

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A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).

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Hi,

I have a folder called

home/system/xyz

now xyz has many sub directories  like abc , def
now abc has directories like lms, pqr etc

xyz is currently owned by me. problem is others cannot see xyz and its all subdirectories for possible issues on the server settings.
now i want to give ownership to xyz directory to ADMIN user say  crm and password say p@ssword so that all the team mates who has ADMIN crm  access can view and modify any directories and files within xyz no matter how deep they are.
how to give access to this one?
0
Nothing ever in the clear!
LVL 1
Nothing ever in the clear!

This technical paper will help you implement VMware’s VM encryption as well as implement Veeam encryption which together will achieve the nothing ever in the clear goal. If a bad guy steals VMs, backups or traffic they get nothing.

I had this question after viewing Solaris LDAP Client failure.

Team - I am experiencing the same issue - But I dont know how to allow anonymous access to directory server as per the solution from user jw124210.

Please HELP!!!!
0
Can i able to add RHEL6 and RHEL7 repos to spacewalk?

I have account on redhat where i can download all the rhel6/7 packages.  not sure how to add to spacewalk so i can utilize spacewalk to do lot of operations.
0
--> Finished Dependency Resolution
Error: Package: spacewalk-taskomatic-2.7.115-1.el7.noarch (spacewalk)
           Requires: hibernate3 >= 3.6.10
           Available: hibernate3-3.2.4-1.SP1_CP01.9.jpp5.noarch (jpackage-generic)
               hibernate3 = 3.2.4-1.SP1_CP01.9.jpp5
Error: Package: spacewalk-java-2.7.115-1.el7.noarch (spacewalk)
           Requires: tomcat-taglibs-standard
Error: Package: spacewalk-java-2.7.115-1.el7.noarch (spacewalk)
           Requires: hibernate3-ehcache >= 3.6.10
Error: Package: spacewalk-java-2.7.115-1.el7.noarch (spacewalk)
           Requires: hibernate3-c3p0 >= 3.6.10
Error: Package: cglib-2.1.3-4.jpp5.noarch (jpackage-generic)
           Requires: asm >= 1.5.3
           Available: asm-1.5.3-7.jpp5.noarch (jpackage-generic)
               asm = 1.5.3-7.jpp5
Error: Package: spacewalk-taskomatic-2.7.115-1.el7.noarch (spacewalk)
           Requires: hibernate3-c3p0 >= 3.6.10
Error: Package: spacewalk-taskomatic-2.7.115-1.el7.noarch (spacewalk)
           Requires: concurrent >= 1.3.4-21
           Available: concurrent-1.3.4-9.jpp5.noarch (jpackage-generic)
               concurrent = 1.3.4-9.jpp5
Error: Package: spacewalk-java-2.7.115-1.el7.noarch (spacewalk)
           Requires: apache-commons-el
Error: Package: spacewalk-taskomatic-2.7.115-1.el7.noarch (spacewalk)
           Requires: hibernate3-ehcache >= 3.6.10
Error: Package: spacewalk-java-2.7.115-1.el7.noarch (spacewalk)
           Requires: hibernate3 …
0
I had this question after viewing Cent OS and Zscaler pac file.

We use Zscaler proxy pac file and I have a CentOS 6.9 physical machine that needs to get updates via yum.

su
password for su
vi /etc/yum.conf


press "i" to enter insert mode and added the proxy info:

proxy = http://ZscalerIP:ZscalerPort/
proxy = http://username:password@ZscalerIP:ZscalerPort/


Once I added this saved and close press "Esc" and then ":wq" and then press Enter

Then ran:

yum - y update

And it was updating just fine.

However, since the first yum updates and reboot the machine has not been able to update via yum.

To help outline what has been done so far:

https://www.centos.org/forums/viewtopic.php?p=269626

Can someone please help me to resolve?

Thank you
0
I did register SUSE 11 SP4 to customer portal. however i don't see the system in the customer portal. but the command returned a string saying the system successfully registered.

suse_register -a regcode-sled=id -a email=admin@mydomain.com -L /root/.suse_register.log
0
Hi freiends,

I have a couple of machines (same hardware) to be set up identical with SUSE Linux Enterprise Server 12.2 and some special application software. The machines run with a RAID1 HDD configuration (mirrored disks).

After completeing the first machine, I did image backups from all partitions (with the tools fsarchiver and partclone from the latest SystemRescueCD) and restored 'em onto the next machine with the same set of tools ( ... yes, I did transfer the partition layout, too). Unfortunately that machine didn't boot up SLES afterwards.

Out of curiosity I installed a plain SLES 12.2 on the machine then and immediately did the image restore afterwards. Now that machine boots up. I presume that the SLES installer writes something into the UEFI BIOS to let the machine boot from the SLES partition.

Is there any way to circumvent that otherwise useless SLES installation step by tweaking the UEFI BIOS settings ?
Is there anything I could/should/must "clone" to the other machine (and, if yes, how) ?
0
Hi,
how to transfer
site booksmarks to shared bookmarks in winscp

please advise
0
Hi,

how to teach winscp remember password. Every time entering password is pain for me. please advise
0
good morning

I am currently presenting problems with three virtual servers, with Redhat operating system version 6.6, since it is not loading the operating system correctly and does not finish starting.

Restart the server repeatedly, migrate another host, and the fault persists. Attach pictures of the errors I am observing.

Stay tuned to your comments.

Best regards.
Errores-Linux.docx
0
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I've got a cursory understanding of CentOS and Linux server administration (installing packages, inspecting error logs, etc etc)...but I don't quite understand how to manage repositories.

For example, right now I'm attempting to install an old version of PHP on to a CentOS 6 server - and there a couple of packages that YUM can't find in the default repositories.  For example I have three dependencies I'm trying to install for:

 libmcrypt-devel libmhash-devel mysql55-devel

I can see those in various places when I search on Google - apparently in different non-standard repositories...but I don't quite understand the process of including them.

Any help would be appreciated!
0
Hello ,

I have a problem with interfaces on a multihomed topology. My interfaces can not ping each other and can not ping theirselves too
sysctl as given below.

But it is able to ping the interface ip when i directly write ping 37.123.98.142 , if the both interface are not able to ping this interface's ip how does it ping it or from where ?

I have to let them have access each other how shoud i do it ?

Note: loopback interface activated
Note2: em interfaces are all down

[root@spd network-scripts]# sysctl -p
net.ipv4.ip_forward = 1
net.ipv4.conf.p1p1.rp_filter = 2
net.ipv4.conf.p1p2.rp_filter = 2
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
net.ipv4.conf.lo.rp_filter = 2
net.ipv4.conf.p1p1.accept_local = 1
net.ipv4.conf.p1p2.accept_local = 1
net.ipv4.conf.all.accept_local = 1
net.ipv4.conf.default.accept_local = 1
net.ipv4.conf.lo.accept_local = 1
net.ipv4.conf.default.arp_filter = 0
net.ipv4.conf.all.arp_filter = 0
net.ipv4.conf.p1p2.arp_filter = 0
net.ipv4.conf.p1p1.arp_filter = 0
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.default.arp_announce = 2
net.ipv4.conf.p1p1.arp_announce = 2
net.ipv4.conf.p1p2.arp_announce = 2

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PING 37.123.98.142 (37.123.98.142) from 37.123.98.142 p1p1: 56(84) bytes of data.

^C
--- 37.123.98.142 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2055ms

[root@spd network-scripts]# ping -I p1p1 37.123.98.138
PING 37.123.98.138 (37.123.98.138) from 37.123.98.142 p1p1: 56(84) bytes of data.

^C
--- 37.123.98.138 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3064ms

[root@spd network-scripts]# ping -I p1p2 37.123.98.138
PING 37.123.98.138 (37.123.98.138) from 37.123.98.138 p1p2: 56(84) bytes of data.

^C
--- 37.123.98.138 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1038ms

[root@spd network-scripts]# ping -I p1p2 37.123.98.142
PING 37.123.98.142 (37.123.98.142) from 37.123.98.138 p1p2: 56(84) bytes of data.

^C
--- 37.123.98.142 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2060ms

Open in new window


[root@spd network-scripts]# ping 37.123.98.142
PING 37.123.98.142 (37.123.98.142) 56(84) bytes of data.
64 bytes from 37.123.98.142: icmp_seq=1 ttl=64 time=0.019 ms
64 bytes from 37.123.98.142: icmp_seq=2 ttl=64 time=0.022 ms
64 bytes from 37.123.98.142: icmp_seq=3 ttl=64 time=0.017 ms
64 bytes from 37.123.98.142: icmp_seq=4 ttl=64 time=0.015 ms

Open in new window




Open in new window

0
Hello ,

Is there any possible way to drop bogus packets as seem below .

for this packets ; packet payload is smaller then the length of the packet

 Screen-Shot-2017-08-23-at-22.22.46.png
0
Hi,

I have user called xyz under that folder there is folder call test under that there is folder called abc, def, hij etc

i want to search to search in all above folders and subfolders for a particular keyword say " nullpointerexception " how t do that .
please advise
0
hi,

winscp how to sudo as admin?
I currently logged in as my user say xyz but i am not able to delete particulr folder/directory. I have to login or pseudo as admin user say rrr to that. how to psedo in the winscp to rrr user?pleaseadcise
0
Hi,

winscp how to compare 2 different unix users say xyz and abc by opening xyz on left hands side and abc on right hand side. As of now on the left hands side i was able to open my windows laptop folder structure like C drive etc and on right hands side i am able to open one unix user like abc or xyz etc. please advise
0
Hello ,

On cloudlinux there is an application with named cage fs that lock the users to their space like a cage. What exactly it does ? is there a way to make same thing without cage fs ?
0
hi

on the unix box various users like xyz, abc etc.

Looks like disk space is running out of server and i need to cleanup.

How to know how much user xyz occupying size and how much abc user is occupying size. please advise
0
Hi all

I have Exchange 2016 server as frontend and installed Linux (ubuntu 14) server as a spam gateway, I installed Spam Assassin and then Postfix and tried to configure it in order to filter and then relay mail to Exchange but I am getting the following error when testing inbound mails

Attempting to send a test email message to admin@domain.net using MX mail.domain.net.
       Delivery of the test email message failed.
       
      Additional Details
       
The server returned status code 451 - Error in processing. The server response was: 4.3.0 <admin@domain.net>: Temporary lookup failure
Exception details:
Message: Error in processing. The server response was: 4.3.0 <admin@domain.net>: Temporary lookup failure
Type: System.Net.Mail.SmtpException
Stack trace:
at System.Net.Mail.RecipientCommand.CheckResponse(SmtpStatusCode statusCode, String response)
at System.Net.Mail.RecipientCommand.Send(SmtpConnection conn, String to, String& response)
at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception)
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at Microsoft.Exchange.Tools.ExRca.Tests.SmtpMessageTest.PerformTestReally()
Elapsed Time: 1141 ms.

My configuration is attached as a code

# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific:  Specifying a file name will cause the first
# line 

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0
Veeam Task Manager for Hyper-V
LVL 1
Veeam Task Manager for Hyper-V

Task Manager for Hyper-V provides critical information that allows you to monitor Hyper-V performance by displaying real-time views of CPU and memory at the individual VM-level, so you can quickly identify which VMs are using host resources.

Hi,
I looged in as xyz user and trying to delete a file in the server domian directory which was created by user say John. how to psuedo to john and delete that file.

what is unix psuedo commandd and how it wrks in unix world. please advise
0
Medical units converting
0
I have inherited a legacy Fedora server running v17, I need to migrate the server to a Hyper-V host and I would like to update the OS as well.

When I try to upgrade to v18 using fedup-cli --network 18 I get the following error

Downloading Failed: couldn't get boot images: curl#22 - "The requested URL returned error: 404 Not Found"

The server has network access as I have manually downloaded Webmin onto it, I can access BBC etc. There is no proxy configured

I have followed a tutorial to update the Repos

**************************************************************************************************
In your /etc/yum.repos.d/ directory are a number of configuration files specific to yum and repositories.


In the case of Fedora Linux, you’ll want to change each of these so they reflect the new archive site, vs. the original download site, which no longer resolves and does not exist.

The original URL looks like this:

baseurl=http://download.fedora.redhat.com/pub/fedora/linux/core/$releasever/$basearch/os/


baseurl=http://archive.fedoraproject.org/pub/archive/fedora/linux/core/$releasever/$basearch/os/

This still hasn't resolved the issue
0
Hi,

In unix using vi how do i copy paste from one file say abc.ccfg to xyz.ccfg.

in windows i simply say on abc.ccfg select all then control c then go to xyz.ccfg say control v .

Thats all i have to do.

VI editor is something i hate.

not at all use friendly.

even moving cursor is big thing there.

any good shortcuts and tips, links on using vi.
0
I have a Linux bind server hosting a

the rzone  file in /var/named/data/51-168-192.zone

the SOA line says this is    "IN SOA  netsvc.int.alconi.com.   root.netsvc.int.alconi.com. 203 3h 1h 1w 5m

I want to create a windows DNS in the another namespace that would be       "win2016.int.alconi.com" or maybe "win.alconi.com"  with its own DNS servers, can I do this ?

should I create another subnet for the win.alconi.com?

if so how ,

I am very ignorant on this , and really really could use some help
1
Hi,

I have xyz.ccfg under my weblogic server.

I logged in to unix weblogic server box.
How do i search on above file name 'xyz.ccfg' to find its exact location like

abc/home/user1/......

i am not sure exactly where it is?


please advise
0

Linux Distributions

26K

Solutions

20K

Contributors

A Linux distribution is an operating system made as a software collection based on the Linux kernel and, often, on a package management system and are available for a variety of systems. A typical Linux distribution comprises a Linux kernel, GNU tools and libraries, additional software, documentation, a window system (the most common being the X Window System), a window manager, and a desktop environment. Most Linux systems are open-source software made available both as compiled binaries and in source code form, allowing modifications to the original software. Over three hundred distributions are in active development, including commercially backed distributions (such as Fedora, openSUSE and Ubuntu) and community-driven distributions (such as Debian, Slackware, Gentoo and Arch Linux).