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

learn more… | top users | synonyms (1)

0
votes
1answer
5 views

Linux hibernate: how to specify a swap partition to store data if I have two?

We can specify the swap partition to load data from when recovering from a systemd hibernation using kernel argument resume=/dev/xxx. However, I didn't find any command-line or kernel argument to ...
0
votes
0answers
6 views

Web server IIS and Apache virtualized server

I am planning to use a web server IIS based on windows machine(Windows 10 Pro) and use the Hyper-V feature to create a virtual machine (Windows again or Linux I do not know yet) which would serve as ...
0
votes
0answers
19 views

Why is a TLS handshake taking *forever* (20 seconds) on a VPS?

I have a server that generally works fine, but gets stuck for 20 seconds when trying to connect with SSL (either SSH or HTTPS display the same pattern.) I tried various connections without SSL, such ...
-1
votes
0answers
13 views

how to suspend cron on the system for all processes, and details about cron files

I have a CentOS virtual server hosted with a company online. I want to shut down cron for the entire system, and then analyze the cron jobs that are running. I have searched through documentation ...
0
votes
0answers
5 views

Cant find fcgi.conf [on hold]

I have a website hosted on a dedicated server managed by plesk. I get this error when too many users use the site at the same time mod_fcgid: can't apply process slot for I have searched and found ...
-1
votes
0answers
20 views

Install CentOS 7 on N54L

currently Im using Scientific Linux 7.2 on my HP Microserver N54L. To get more "mainstream" and out of curiosity (and to try out my ansible-playbooks), I wanted to install CentOS 7 on it. So I ...
-2
votes
0answers
23 views

Give www-data Permission To Reload Nginx Works Via Command Line but not cron [duplicate]

I have been researching for literally days, and to no avail. I have been trying to get my php script to be able to reload nginx. exec("sudo /etc/init.d/nginx reload"); works when I run the script ...
0
votes
1answer
16 views

configure a PAM module to be required for all but certain users for which it should be sufficient [duplicate]

I'd like to be able to configure /etc/pam.d/sshd so that: for all users except those in group "admin", module pam_radius is required. for those users in group admin, module pam_radius is ...
-5
votes
0answers
30 views

Free Linux Server? [on hold]

Yes, yes, I know the drill, any free server you'll stumble upon is either a fraud, or works absolutely horrible but, is there any site I could use to host a small pi-hole (DNS) server on for a small ...
0
votes
0answers
6 views

Xen: Error: Device 51712 (vbd) could not be connected. Hotplug scripts not working

I am really unsure, but when I am trying to create a new VM with: xm create default.cfg -c It returns: root@user:/home/user# Error: Device 51712 (vbd) could not be connected. Hotplug scripts not ...
1
vote
1answer
30 views

Apache2 and nginx randomly consuming all memory, every week or so

I'd like to preface this by saying I have read at least 10 related Serverfault questions before resorting to making my own... I am currently running a Ubuntu 14.04.3 server with 2GB of RAM and about ...
0
votes
2answers
16 views

ansible find patterns on single line?

How could I do this: - find: paths: "/etc/ssl/" recurse: yes patterns: - "*.pem" - "*.crt" On a single line? The documentation suggests something along: - find: ...
0
votes
0answers
37 views

systemd Using Lots of Resources on CentOS 7

I have a web server running CentOS 7, on which the systemd process is using nearly 4 GB of RAM after a couple weeks of uptime. RAM usage is increasing steadily at about 200MB per day. This and related ...
-3
votes
0answers
13 views

linux centos cache memory increasing drastically [on hold]

We are using centos on server side. But unfortunately we are getting issue like cache memory increasing drastically. Please let me know how to overcome it. Thanks in advance.
0
votes
0answers
17 views

Turn off output/force DPMS on unloaded GPU without driver

I'm running a KVM VGA Passthrough VM on my desktop, passing it my dedicated GPU. This VM does not automatically start as I don't always need it. When the VM isn't running, my desktop doesn't touch the ...
0
votes
0answers
14 views

Cleaning Nginx access log files - removing user agents used for testing [on hold]

I've done quite a bit of performance testing on my Amazon Linux production server, across half a dozen sites. As a result I have dozens of log files, some gzip'd, with tens of thousands of hits that ...
0
votes
0answers
4 views

Centos 6 ssd mtip32xx driver command(s) timed out: tagmap

We have some servers with Centos 6 with "Micron Technology Inc RealSSD P320h" ssd drives. We have noticed in the kernel log Feb 11 09:47:32 hostname kernel: mtip32xx 0000:47:00.0: 1 command(s) timed ...
0
votes
1answer
13 views

How do I reconfigure my disk array on a Dell machine under Linux?

I have a Dell R620 with a PERC RAID controller (lspci shows "RAID bus controller: LSI Logic / Symbios Logic MegaRAID SAS 2108 [Liberator] (rev 05)"). I had placed a single disk in it, made it a ...
1
vote
0answers
12 views

Installing VirtIO SCSI on Windows Guest fails

I'm running Windows 10 as guest via KVM / qemu. Unfortunately, Windows doesn't recognize the fedora virtio drivers I want to install for better HDD perfomance. The driver itself does show up, but ...
0
votes
1answer
9 views

chef common recipe multiple roles

i have created a mongodb chef recipe, and i am overriding the default attributes on the recipe from the role. name 'mongo_datanode_jackey' description 'this module is currently under testing...' ...
2
votes
1answer
31 views

Why do we use a OS Base Image with Docker if containers have no Guest OS?

I've just started to study Docker and there's something that's being quite confusing for me. As I've read on Docker's website a container is different from a virtual machine. As I understood a ...
-2
votes
1answer
17 views

There is a requirement from my boss to prepare a cluster of our application on wildfly application server

There is a requirement from my boss to prepare a cluster of our application on wildfly application server. I have designed the architecture as two haproxy(for loadbalancing),two apache servers for ...
0
votes
1answer
8 views

IIS front end of jboss

I wanted to know is it possible to place IIS 8 in front of two jboss 5 nodes hosting on Linux.Two jboss nodes are ruuning in cluster on two different machines.Is it possible for IIS to load balance ...
0
votes
0answers
22 views

Postfix not forwarding emails, but sends them from command line

I did have postfix working a few months back, then for some reason it stopped working. I only want forwarding emails, not mailboxes. I've setup forwarding using the virtual file, and configuring ...
0
votes
0answers
21 views

Xen reduce VCPU

I am trying to reduce the number of VCPU on Dom0, but not understanding why its not reducing the number. Log: [2016-02-11 13:43:25 2550] INFO (XendDomainInfo:1977) Set VCPU count on domain Domain-0 ...
0
votes
0answers
7 views

Is there any library for MSMQ which can be run on linux server? [on hold]

Is there any open-source or simliar open licence library for MSMQ for languages like java/python/php which can be run in Linux environment?
0
votes
0answers
13 views

Is IP range or vLAN traffic mirroring possible with Linux?

I am dealing with a network monitoring issue in a medium size hosting platform (10 Gb). Some of the network devices can only do 1-2 SPAN ports. In order to get some more flexibility I'd like to use a ...
0
votes
1answer
24 views

Performing DNS queries starting with one of the root servers using dig command [on hold]

I am having trouble understanding the question for my network assignment. The question states: Discover the sequence of DNS servers your local DNS server with empty cache goes through when it ...
-1
votes
0answers
13 views

How do I forward/NAT all traffic to one interface to give internet acess for clients in ap? [on hold]

Im trying to setup a router in my debian vbox virtual machine using an usb wireless adapter in at0,and a bridged adpater in eth0,i'm using airbase-ng and isc-dhcp for leasing ips,the point is all ...
-1
votes
0answers
19 views

Could a missing library be causing this message to appear? [on hold]

I recently tried to run a certain function from a program (it's pre-compiled and I don't have access to the source for it) and was met with this message: Could this possibly indicate that a library ...
0
votes
1answer
28 views

Captive portal and SSL

I think similar questions have already been asked over and over, but my question is slightly different. I understand I can't redirect HTTPS traffic to the Captive Portal landing page without causing ...
-1
votes
0answers
17 views

Site images lost/cropped, was this an attack, looking for clues [duplicate]

I am still putting things together to get this sorted, so apologies if I fall short on details. I am looking for your help to identify what actually happened. I take care of an eCommerce shop. ...
0
votes
0answers
24 views

Forward all traffic when connected to a hub

I have a Ubuntu with two NICs. eth0 is connected to a hub and eth1 is connected to Internet. eth1 is used to do a point to point VPN using openVPN. So I have a tun0 interface. the VPN tunnel endpoints ...
0
votes
0answers
28 views

Why do I get a list of root name servers when doing an nslookup to one nameserver and not another

I have two bind9 servers, ns1 and ns2 I have a test domain called test.test whos apex is 1.3.3.7 When I nslookup ns1 (master) I get: nslookup test.test ns1.domain.com (root) nameserver = ...
16
votes
2answers
3k views

Very strange file size (more than 600 PB) on a small filesystem

I had a file on an XFS filesystem which size was about 200 GB. It was a QCOW2 image containing a virtual disk of a KVM-driven virtual machine. Something went wrong (maybe it was some glitch of ...
0
votes
4answers
54 views

Internal DNS for internet access

I have configured a internal DNS for my office network using BIND on CentOS6 ... The problem I am having that when I use that DNS server as a primary DNS my entire network loses internet connectivity ...
0
votes
0answers
9 views

My Server trying to find known vulnerabilities in other server [duplicate]

I got mail "Abuse message" Greetings, We have detected abuse from the IP address MYIP.XX.XX.XX, which according to a whois lookup is on your network. It seams to be trying to find ...
1
vote
1answer
60 views

IBM System x3850 M2 Ubuntu Server Install

I just purchased two second-hand IBM System x3850 M2 rack servers, and I am a real noob to the subject. As such, I cannot tell if there is a major difference between x3850 M2 and x3850 X5. If there ...
0
votes
1answer
13 views

is there a way to pretty print the output of “ps” to include the “rss” memory value?

I have a python script which takes in processes in csv format and decides things based on what's running, it's name, and how much cpu time it's using. I would like to add processes that also use lots ...
-1
votes
0answers
15 views

RHEL 7 lock screen freezes [on hold]

I've just installed RHEL 7 into hyper-V for some testing of a linux application. To my dismay, I find that the console freezes up when the desktop locks. I can Alt-F2 to get a tty, then gdm-restart. ...
2
votes
1answer
17 views

Linux showing wrong disk space used, du -h -x / | sort -hr has different space

If I type: df -h It shows me 12G used. But If I use this command: du -h -x / | sort -hr >> /home/log_size.txt This will give me: If I sum /usr + /var + /root, this won't give me ...
-1
votes
0answers
5 views

samba full audit: meaning parameters

I have set full audit in samba, but there are some parameters that would like to know exactly what they mean Full audit full_audit:prefix = %I|%m|%S full_audit:success = mkdir rmdir pread read ...
0
votes
0answers
30 views

Permissions denied to directory owned by a user

I have a similar problem to that posted here, in that a user is unable to access the contents of a directory they own. A quick search shows quite a few other similar questions, however the problem ...
0
votes
0answers
24 views

In a virtual lab environment, I have a pxe server timing out

I've built a pxe server using CentOS 7. The client times out with a message of: Connection timed out (http://ipxe.org/4c126035) When I look at that link, it says 528 rc = -ETIMEDOUT;, but ...
2
votes
2answers
186 views

How to keep access keys safe in the event of a compromised server?

What's the best strategy to keeping access tokens secure in the event of a compromised server? Let's say I have a Linux web server to which I regularly ssh into. There is a variety of critical access ...
0
votes
0answers
4 views

How to programmatically change a password on an IPSwitch server using a Linux client? [migrated]

One of my companies customers runs an IPSwitch sftp server, and they have disallowed public key authentication, and require us to change our password every 90 days. The problem is that, I cannot see ...
0
votes
0answers
16 views

Gluster for replication/propagation

Say I have a bunch of servers that access a gluster mount to serve files via http. Files are sourced internally, and are copied from an internal server to the gluster mount on one of the download ...
2
votes
1answer
13 views

Adding trusted root certificates to the server cent os

I m trying to install a root certificate in my cent OS box. I did the following Enable the dynamic CA configuration feature: update-ca-trust force-enable Add it as a new file to ...
0
votes
0answers
9 views

Munin graphs not being removed from html page after plugin removed

I have a munin server and many linux nodes. That all works fine. I wrote some custom munin plugins. They worked. They appeared on the munin html page. I have since deleted those plugins. However my ...
-1
votes
0answers
23 views

FTP Server - Prevent Uploading Files Named with Certain Characters [on hold]

Is there a way in FTP to prevent clients from uploading files named with certain characters? or to accept only files named with specific characters? Example: accepted file name should only contain ...