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

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Apache James: eval: /opt/james/bin/./wrapper-linux-x86-32: not found

I'm setting up a James server for the first time. I'm using 3.0-beta4. After I copied the binaries to /opt, I tried running it: neonorb@neonorb /opt/james/bin % ./james start Starting Apache James ...
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1answer
22 views

Laravel creating symbolic link to main public_html folder

I have installed laravel in my shared hosting and everything went well except I cant make the defaukt laravel 5 page to show in my example.com/ main directory in SSH I did this : ln -s ...
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2answers
29 views

Apache returns empty response and must restart

I have the classical LAMP configuration on several servers, on one server I can frequently see Apache returned an empty error. I have PHP-FPM running to serve .php file, static pages like .html is ...
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2answers
42 views

Tomcat webapp failing to start when Tomcat started as a service

I have a webapp that is failing to start in Tomcat on a Linux install. The app works on a different Tomcat installs on different machines and on the same machine when using a standalone Tomcat. The ...
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1answer
27 views

httpd.conf (ProxyPass and ProxyPassReverse)

I would like to ask what is the difference between the following configurations below. application original URL/location: http://localhost:8080/MyServerApp/App_1 1st set-up/configuration ...
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0answers
9 views

Meteor app 403 forbidden

I have a meteor app which runs locally but on my linux ubuntu with nginx and passenger webserver it gives a 403 error. I have changed the permission for the meteor and followed this simple guide ...
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1answer
57 views

VPS Server getting offline - CentOS

I have a VPS CentOS Server hosted by GoDaddy. The database for my website is going down once everyday. I have two websites hosted on that server, a Wordpress and a Magento website. The connection to ...
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0answers
77 views

Apache, Tomcat : How to use multiple SSL certificates on a single server

I am working on our Debian X64 server which is the endpoint for 5 domain-names. One of the domain-names is utilized by a web-project running on Apache web server. The remaining 4 domains have ...
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2answers
70 views

how to re-direct from http(s)://(www.)example.com to https://example.com using Nginx?

Just as the title states. I found another helpful Q/A, but it does not show how to do it correctly in Nginx settings, I mean the parameters. He might mean that https://exmaple.com should have a valid ...
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1answer
94 views

How does systemd decide if a service is ok or not

This question is related to: reliable systemd service for autossh I have a service which uses type=simple. Here the systemd docs: Type=simple (default): systemd considers the service to be ...
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1answer
31 views

Multiple interface Red Hat 6 ISC DHCP Server sending Incorrect PXE next-server

My setup: Red Hat 6.7 isd dhcp server 2x networks connected (A and B) One DHCP pool configured on Network A When I had this server set up on a single network ("A") it worked fine, now that I added a ...
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21 views

Server Requirement for Android Application [duplicate]

I am completely new to bandwith , server stuff etc. I would like the experts here to help me. Well i am developing a photo sharing application where the user will post photos and stuff. Well the ...
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0answers
16 views

pop3 mail proxy on linux server

I have an ISP pop3 account and I need to retrieve mails on my server (ubuntu server) to feed an IMAP webmail (roundcube) installed on my server too. So, I need : my_ISP_POP3server -> ...
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0answers
21 views

What is the difference between the SIGHUP generated by typing “exit” in the SSH shell terminal vs clicking the “X” button in the PuTTY window? [migrated]

Referring to this question, I am trying to use nohup <command> <arg> & to continue to run a command in the background after I logout from the SSH shell terminal. However, the ...
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votes
2answers
152 views

mdadm software RAID isn't assembled at boot during initramfs stage

First, I prefer to mention I've found and read this. I'm running Debian Jessie with a standard 3.16 kernel. I've manually defined a RAID1 array. But it is not assembled automatically at boot time. ...
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0answers
9 views

nodejs isn't accessible on command line

I am using Ubuntu 14.0.0 and I have installed the node with the below command curl -sL https://deb.nodesource.com/setup_4.x | sudo -E bash - sudo apt-get install -y nodejs and I can see the node ...
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0answers
9 views

Update RHEL 7 intel graphics drivers to support 4k

I'm running RHEL 7. Is it possible to update the intel graphics drivers to support 4k resolutions? lspci reports: 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core ...
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3answers
81 views

Nginx 1.2.1 custom 404

I'm trying to make a custom 404 error with nginx. First in my local machine I added the following lines to the default site: error_page 404 /custom_404.html; location = /custom_404.html { ...
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2answers
85 views

Logging In as a root user to a remote machine using SSH

My problem is similar to this one , I am trying to automate the portion where I can access the remote machine and run a command as super user. It works fine till it logs-in , like from here :- $ ...
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0answers
20 views

Rsync help: upload files with changed ones renamed?

I hope someone can help me with rsync. I have a large directory with many (thousands) subdirectories, in which I sometimes mirror (individually download) files from a remote site to work on them ...
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1answer
25 views

Copying snapshot to another machine

I currently have exported an OVA of certain systems so I have a complete backup. After certain changes were made ( additional users added to LDAP for example), I created a snapshot. Would I be able to ...
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2answers
39 views

How to connect postgresql with LDAP user?

I have a server with postgresql-9.4 fresh install and I have another server with LDAP already installed. I want to connect postgresql with LDAP user that already exists. What's the basic ...
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1answer
25 views

How to change reply to address if using smtp auth in Exim mail server

If I use smtp auth for send mail on mail client , the reply-to address received by destination is the same used in smtp authentication. I must authenticate with the same . It is forced by exim ...
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1answer
21 views

What is the best way to analyze data captured from sar?

I've got some sysstat data that has been captured from servers with SAR, and I'm unsure what is the best way to analyze that data. I've found ksar, but it seems to be quite old and out of date. I'd ...
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19 views

NGINX Problems in redirect from “/” to “index” when non secure

I've got a personal website running up and going. I've rented a cloud ssd server and configured nginx on it to serve content. All the content which has to be served directly is in the path ...
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0answers
21 views

Kerberos-based SSH login requires local user account

I've recently set up a linux system (Debian-Jesse) which has joined an MS-Based Kerberos domain and been set up to allow Kerberos-based authentication for remote access. The only issue is, ...
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1answer
42 views

linux redhat + login prompt keep getting again and again [duplicate]

we installed new server redhat version - 6.7 from kick start, after installation complete successfully we get the login prompt but I am unable to login locally on my redhat linux 6.7 server. The ...
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0answers
33 views

How to show list of installed/loaded varnish vmod's names in command line?

I installed varnish 4.1 and compiled some vmods in a linux (ubuntu14 and centos7). Now I want to check list of installed vmod or loaded vmod to check if they are properly installed, recognized ...
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0answers
32 views

Block incoming traffic in bonding mode when primary interface is down

My server running on latest kernel (4.4.6) has configured a bond device (bond0) with two enslaved interfaces eth0, wlan0 with primary interface eth0. cat /proc/net/bonding/bond0 Ethernet Channel ...
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votes
2answers
76 views

linux + when change passwd we get permission denied

We have installed Redhat Linux 6.5 from scratch the VIA kick start installation and booted into single user mode because I don't have the root password. But when I perform the following: passwd root ...
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0answers
15 views

How to use systemd to run a script only on process bad exit instead of graceful one

I configured systemd to run a system devised of several services and targets. I wish to run a script that creates a notification if a service in the system crashes. The problem is that my system has ...
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votes
1answer
49 views

SSD Server with trim enabled

I have a Windows Server (but I think this problem may apply to any UNIX server too) running using SSD. I have Kingston UV300 SSD and they allow TRIM. I also checked and my Windows is running with TRIM ...
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3answers
66 views

How to use nohup to continue to run a command after the user logout?

nohup <command> <arg> & When I SSH into a Linux server, if I want to run a command and make sure that it will continue to run in the background after I logout from SSH, I will use the ...
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0answers
35 views

How to configure RealVNC to use dual displays full screen

The setup is the following: VMWare ESXi5.0 Virtualisation server running a virtual machine Win7. This virtual machine is configured to have 2x Generic Non-PNP displays both at 1920x1200 resolution. ...
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3answers
38 views

Getting java.lang.OutOfMemoryError when running an application

I am on a linux Red Hat machine and am trying to run a shell script that initiates a java application. It ran just fine yesterday but today I am getting this error: Error occurred during ...
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2answers
24 views

Basic Auth in multiple directories on same virtualhost

Is it possible to nest basic auth? So that the parent folder and all subfolders can be accessed using one basic auth directive but subfolders have seperate auth VHost config: <VirtualHost ...
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0answers
8 views

ProxyPass in apache based on cookie or other user supplied token

Platform: apache 2.2 RHEL 6 Question: I need to be able to let some users access parts of our website with the same domain, and with the same URL but behind a different ProxyPass rule. Any ...
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1answer
111 views

How would I get this routing to work between the two subnets? Unsure if i am over-complicating my network

I am attempting to operate 2 subnets, the first subnet on range 192.168.0.0/24 is free to access anything it wants, including machines on the second subnet. the second subnet on range 10.0.0.0/24 is ...
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OpenNMS not running, java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException:

I basically cloned a OpenNMS machine from AWS and created a exact replica of the system. When I log into the machine and look for the status of OpenNMS i see it as stopped with the error, the error on ...
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1answer
24 views

apache LimitRequestBody equivalent for haproxy

recently we migrate our http load balancers from apache to haproxy (http mode) for security reasons we use LimitRequestBody in apache configurations to control requests size is there any equivalent ...
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votes
1answer
31 views

Server got blank with error: -bash: fork: Cannot allocate memory [closed]

My Vps is not executing any command. Server load is high and memeory usage is 100% due to which this error occured -bash: fork: Cannot allocate memory. I just want to what is this process PHP and ...
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0answers
14 views

ES cluster configuration for 3 nodes: 1 large and 2 small

ElasticSearch is used as a cache for PostgreSQL database to avoid a lot of joins and speed up my application selects. Initially everything is stored at single large server (32GB RAM): webapp, nginx, ...
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0answers
22 views

Mount One drive part of a Raid 1 in another Linux system

my system does not have Raid setup and this is my first time that I need to mount a drive that was previously on a Raid system. I have both drives, and I do need to check the consistency of the ...
0
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0answers
21 views

Fail2Ban WordPress filter not working on Debian VPS

I am having trouble getting WordPress Fail2Ban filter to work. I have installed the WP Fail2Ban plugin using the latest update which had a few changes, however, nothing is getting blocked. Here is a ...
0
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0answers
40 views

RAID10 array lost after reboot | Amazon Linux

I carefully followed this procedure to setup RAID10 on Amazon Linux: https://mongodb-documentation.readthedocs.org/en/latest/ecosystem/tutorial/install-mongodb-on-amazon-ec2.html I also upgraded ...
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1answer
49 views

How do you run a script when a kernel oops occurs?

I would like to run a custom script when a kernel oops occurs. Is this possible, and if so how?
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1answer
25 views

PCI Scan failing at TCP Source Port Pass Firewall testing

I'm trying to get PCI scan PASS for my website, Scan failing at this step. The host responded 4 times to 4 TCP SYN probes sent to destination port 20 using source port 80. However, it did not ...
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16 views

Kernel errors with 3.13.0-71-generic

After upgrading several hosts to Ubuntu 12.04.5 LTS with the LTS enablement stack (linux-generic-lts-trusty 3.13.0.40.35), we are seeing a sudden spike in kernel errors. These only begin to occur ...
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1answer
39 views

Samba file sharing cache

Does Samba have any option for file caching over WAN (connected via VPN)? I've looked into WAN optimization, but I want something simple to setup. Setup: Linux File Server(Main ...
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1answer
23 views

utility of using ALL in --tcp-flags in iptables rule

I m wondering what is the difference between the following 2 --tcp-flags rules: 1) -p tcp --tcp-flags SYN,FIN,RST SYN,FIN,RST 2) -p tcp --tcp-flags ALL SYN,FIN,RST