Linux is the generic term for a UNIX-like open source operating system based on the Linux kernel.

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ubuntu 12.04 sssd sudo not working

This is for Ubuntu 12.04.5 LTS I am trying to implement SSSD as a client and everything works all right BUT SUDO I cannot see anything happening in the sssd_sudo.log file at all but the usual file ...
1
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1answer
24 views

BIND DNS A Record File

I've been adding about 10 DNS A records a week for the past 2 weeks. After updating a record using nsupdate it occurred to me that maybe I should find a way to separate the DNS A records from the ...
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0answers
10 views

detecting whether GPUs are accessible before running nvidia-smi during boot to create dev files

In the past, I've successfully configured Ubuntu systems containing NVIDIA GPUs to launch nvidia-smi in the background from within /etc/rc.local during the system boot to create the requisite ...
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0answers
8 views

Automatic/predictable block device mounting using systemd

I'm netbooting a bunch of servers with CoreOS. The servers have lots of drives attached that will be used for a purpose that is not for the OS. For simplicity and repeatability I'd like to be able to ...
0
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1answer
13 views

Installing Samplicator on CentOS

I'm trying to install Samplicator to test Netflow central collector and then forwarding to other collectors from there. I mainly want to use Samplicator due to it being able to easily sample the ...
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0answers
6 views

Route outbound traffic with iptables

I am not able to route outbound traffic with iptables on a server to a specific IP while keeping access to ssh and some others services to this server from anywhere. Can anyone provide any advice ...
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0answers
6 views

php generated css no output, net::ERR_INCOMPLETE_CHUNKED_ENCODING

I am running apache on an ubuntu installation. Several webapps are running on the same server. I installed a new app, which required the pdo-sqlite extension to be installed. Now my server is ...
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1answer
16 views

Linux VNC doesnt accepting my password

I set up a tight VNC server. I used this tutorial: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-vnc-on-ubuntu-14-04 The VPS is hosted on Digitalocean. The VNC server ...
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0answers
15 views

How to find out OS name in AIX without using uname command? [on hold]

How to findout OS name in AIX without using uname command.Is there any other method/command to findout this?
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1answer
20 views

PXE or other : deploy images on single board computers (SBC)

We have a few SBCs of various modeles (but a lot of freescale). When received, these SBCs are bare (no BIOS/U-boot). We generate linux embedded images with Yocto (using U-boot as bootloader), and we ...
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0answers
9 views

Ucarp on vlans in trunk - debian

is it possible to use ucarp on vlan interface in debian ? I am trying : auto eth1 iface eth1 inet static address 192.168.0.1 netmask 255.255.192.0 auto eth1.10 iface eth1.10 inet static ...
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votes
1answer
32 views

How to install git-daemon on red hat enterprise 6 [on hold]

I need to install git-daemon on Red Hat enterprise Linux 6.2, with http support. What are the correct package to install? It is necessary to create a specific user or group? I'm looking for a simple ...
0
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1answer
19 views

NFS Server “outbound” bandwidth consumption

I need to understand about something in NFS (Server). Let say i have: Two Different Clouds (One Server on each) One NFS Server One Apache Server (as the NFS Client) with a NFS Mounted Directory ...
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0answers
7 views

Last partition fails to dd copy [migrated]

I'm trying to copy the NOOBS Raspbian distribution's 8GB SD card to a new card. For some reason, the logical partition /dev/sdb6 will not copy correctly. Accessing fdisk /dev/sdb after the attempted ...
1
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1answer
30 views

Amazon EC2: OpenVPN server won't route bridged packets from client to VPC subnet

I have a bridged OpenVPN setup on a Linux server in an Amazon EC2 VPC. (Spent hours on docs, reading similar problems, here, openVPN forums, no luck yet.) The bridged interface is up and contains ...
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0answers
12 views

Azure intermittent outbound connection failure to EC2

I have three Linux VMs (Ubuntu 14.04) running in a vnet, like this: Host Internal IP External IP prod1 10.0.1.1 104.45.234.56 <---\__ load balanced prod2 ...
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1answer
14 views

Why can I boot and install windows from a MS MDT server, using ISC for the dhcp server, but only under lageacy bios, not UEFI?

Setup is: Windows 2012 R2 with MDT 2013 Ubuntu Server 14.04.2 running ISC dhcp Client can be VM/Hardware doesn't matter. If I stay in legacy bios mode things work splendidly. When I switch to UEFI, ...
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0answers
21 views

Client won't trust SELinux because the NSA made it [on hold]

I have a client who won't trust SELinux because he read on Wikipedia that it was created by the NSA. So I've been told it must have backdoors and therefore is certain to be less secure than running ...
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0answers
28 views

Are the UID of users from a domain maintained locally in a machine?

This could be total nonsense but as I am new and am trying to learn. I came across this question. I have seen many of my office linux machines connected to some domain. I am wondering as if a ...
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0answers
23 views

Deploying Production Linux Servers on hard drives [on hold]

When deploy Linux servers how would your partition the drivers within servers that use mySQL, LDAP, storage, etc.? Do you have a separate RAID array in RAID 1 with the Linux OS on it then have a ...
-1
votes
1answer
65 views

How to delete all php files first line? [on hold]

How to delete all php files first line? I used the following command, but it works only for present directory and not recursively. sed 1d file.php Please tell me the command or script which delete ...
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0answers
17 views

How do i prevent executing os command in oracle 11g [migrated]

I have Oracle 11g installed on a linux serveur and i'm looking for a way to prevent sysdba from executing system command through oracle(Using java for example).
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1answer
27 views

Can cacti display some TEXT output from mib at my graph?

My switch can check if there is an SFP connector present in its ports and their respective link status. I want to display this information in Cacti graphs for each interface of my switch. The switch ...
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0answers
23 views

Forwarding ports and traffic to VPN tunnel

I've installed OpenVPN on my VPS. I have one question: how to forward traffic going to that VPS to go to VPN tunnel created with my local PC. I will use TCP connection. The whole traffic will be like ...
1
vote
1answer
38 views

Nginx doesn't start using systemctl

I have defined a custom error_log for a virtual server inside it's directory like so: server { listen 80; server_name www.example.com; root /home/www.example.com; ...
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votes
1answer
22 views

Will upgrading to a faster server make my videos load / stream quicker for users? [duplicate]

General question that even a godaddy tech couldn't really answer for me. Im making a website with lots of video on it, most are embedded from youtube. I know, to stream videos, I should upgrade to a ...
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0answers
9 views

Error when adding torrents to deluge with python: User does not exists [on hold]

I am trying to write a python script to download my tv shows automatically as soon as they become available. I got the basics done. But i cant get to add torrent to deluge via deluge-console. The ...
-1
votes
0answers
29 views

Routing traffic from VPS to private IP [on hold]

I have ordered VPS on Digitalocean. I need to route all incoming traffic from this VPS to my local PC, which dont have public IP. I have read about reverse proxy and about VPN. Is it possible to route ...
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0answers
40 views

Got hacked. Want to know how and protect the others similar setup instance [duplicate]

The website got hacked, would like to know how / possible approach the hacker did and how can i protect the server. This is the information of the hack: http://www.zone-h.org/mirror/id/23884086 The ...
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votes
0answers
26 views

Frequent disk usage by kworker, jbd2

So I came across my disk access light blinking an awful lot for what should be an idle processor. The Problem There's a kworker job usually named kworker/u16:n, where n is usually 0, 1, or 2 which, ...
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0answers
16 views

Cannot work with opsi server [on hold]

I have installed the Opsi-server in centos by following this http://download.uib.de/opsi_stable/doc/opsi-getting-started-stable-en.pdf.The opsi server was installed successfully and the server GUI is ...
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2answers
35 views

how to change the special port output source address?

I want to change the my datapackage from port 25 to another internal address(192.168.2.253). iptables -A OUTPUT -o em1 -p tcp --dport 25 -j SNAT --to 192.168.2.253 But I get the output is: ...
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votes
1answer
30 views

How can I configure multiple tap interfaces for a single KVM virtual machine

I am trying to setup a VM using Linux KVM for a F5 BIG-IP VE deployment (used in a lab) ...
0
votes
1answer
25 views

How can I set environment variables for a different user

I'm trying to get 2 docker containers started and linked together with a rails app. This app relies on these environment variables: POSTGRES_PORT_5432_TCP_ADDR POSTGRES_PORT_5432_TCP_PORT When I ...
38
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3answers
4k views

Is it possible to reboot a Linux OS without rebooting the hardware?

Is there a way to reboot a Linux system (Debian in particular) without rebooting the hardware? I have a RAID controller that takes a bit to get itself running before the OS starts up, and I would ...
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1answer
21 views

Ubuntu remount a root mount that's changed to ro as rw without rebooting

Because of errors=remount-ro an underlying NFS blip caused my root mount to be remounted as read-only. I know there is nothing wrong I need to worry about. How can I remount this as rw without ...
0
votes
1answer
21 views

Squid running in intercept mode on same machine as browser keeps giving access denied

It's been a while since I last touched squid and I've been sitting here figuring out this problem since the last few hours why my squid setup on this standalone server machine (behind router nat) ...
1
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1answer
12 views

Upstart log stdout and stderr to file not working as expected

When in bash I can run: java -jar server.jar &>> log.txt And it combines the stdout and stderr into log.txt. However when I have this line in my Upstart .conf file, it does not do this: ...
0
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1answer
44 views

Can ping in Only one Direction within VLAN using tagged and untagged ports

The following setup: Two linux hosts s=server, c=client One switch which is fully VLAN capable Tagged port setting and tagging enabled on the server/switch side Untagged everything on the client ...
1
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1answer
25 views

sssd one ldap server for authentication and one for automounting, is this possible?

Says it all in the title really :) I am looking into SSSD but have a requirement that it must use ldap-1 for user authentication and then get the home directory automount information from ldap-2. ...
0
votes
1answer
28 views

Specify File-level FTP Permissions

I have a user that has access to an ftp folder: /home/user1/public_html/ Is it possible to deny access to specific files within this folder, while still allowing apache to run them? For ...
0
votes
1answer
14 views

Allow access to vpn users in certain directory

My users connect to a vpn network and i want to offer them a webservice, but limiting the access only through their vpn ips. I got this so far # ALLOW USER BY IP <Limit GET POST> order ...
0
votes
2answers
12 views

Make some route info persistent on RHEL

I would like to make the following route info persistent. I know how to do it for the default, but how about this line: 10.27.74.0 * 255.255.255.0 U 0 0 0 eth0 ...
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0answers
9 views

RHEL KVM HA rgmanager

I have a RHEL HA 2 node cluster which is run with rgmanager, cman (corosync), clvmd, gfs2 and storage replication using drbd I let drbd, clvmd and gfs2 be managed by rgmanager, but i have 8 ...
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0answers
28 views

ftp linux server tuning [duplicate]

I've a Linux ftp server handling 200 download from 200 3G client, I want to tune the server so the client will have the maximum throughput 1- I've tuned from the server side by increasing buffer size ...
0
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1answer
27 views

Seperation of network traffic\routes

In a lab environment I have 4 VLANs: VLAN10 -> Management (192.168.10.0/24) VLAN20 -> Service (192.168.20.0/24) VLAN30 -> Administration (192.168.30.0/24) VLAN50 -> Public (192.168.50.0/24) ...
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3answers
58 views

Is there an option in Apache to check PHP files for malicious code before parsing them?

Basically, I would like Apache to check PHP files for certain patterns before parsing them. If these PHP files match the patterns, I would like to send something else in replacement back to the user. ...
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votes
1answer
22 views

Create and access sites on local ubuntu Server from windows machine via LAN [on hold]

I have a Ubuntu Server in my LAN, latest ubuntu server with Webmin, and Virtualmin From this : ...
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0answers
12 views

Process-wide VPN connection via openconnect

I'm using openconnect to connect to a remote endpoint and SSH onto the machine inside the remote network. The problem is, when I do create the connection, the machine I do it on is unresponsive for ...
0
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0answers
15 views

How to determine if a cd/dvd media is writable [migrated]

Is there any way to determine whether a inserted cd/dvd media is writable or not on Linux? It seems that the good old cdrecord had an option called -minfo, which is missing in wodim. Thanks in ...