Tagged Questions

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

learn more… | top users | synonyms (3)

0
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0answers
4 views

Apache on Centos 6.5 Purge of LDAP cache failed

My logs are filling up with: Purge of LDAP cache failed I have researched as much as I can, and I cannot find a fix. I am running the latest (as of this post) version of Apache, PHP and all of the ...
0
votes
1answer
26 views

Linux Authentication by Active Directory without joining to domain

I have a Win 2008 AD based network. I want to setup a few boxes with dual boot Win/Linux. How can I achieve to authenticate the users with existing AD in Linux? All solutions - I have found yet - ...
0
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0answers
11 views

Geo-file synchronisation between nodes

I set-up dual (multiple in future) node load-balance/fail-over web server (Using CentOS 6). Everything went well except one "little" thing: I need file "sync" (Replication). I need it to go multiple ...
0
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2answers
35 views

IPTables only solution to block any IP address who has made too many connections or reconnections

I’m looking for an IPTables only solution to block any IP address who has made too many (e.g. more than 5) connections or reconnections within a short period of time (e.g. 1 minutes) on a certain ...
0
votes
2answers
16 views

Nginx uLimit 'worker_connections exceed open file resource limit: 1024'

I keep getting this error in nginx/error.log and its driving me nuts: 8096 worker_connections exceed open file resource limit: 1024 I've tried everything I can think of and cant figure out what is ...
0
votes
1answer
26 views

Choose hardware for MySQL server with 1-2k rps [duplicate]

I am looking for new DB server. I'd like to know your opinions and recommendations. Current server spec: We use DB server for website with 100-200 req per sec(i plan growth up to 200-250) Today we ...
0
votes
0answers
16 views

aws instance froze, how to find out what went wrong

So we have a instance on AWS that runs CouchDB which was down and not accessible until we rebooted the box (which took a long time). The instance is back up now and I am trying to figure out what ...
0
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0answers
5 views

Keepalived: NAT VIP for internal network unused?

I'm building a proof-of-concept loadbalancer with CentOS 7 and keepalived. I took Red Hat's load balancer administration guide as a reference and implemented a NAT'ed loadbalancer with 2 nodes which ...
0
votes
1answer
29 views

My Certificate doesn't work on all machines

I installed Centos7 on my new brand server. I use LDAP as authentication. I deployed my certificate on all server and LDAPS is working with RHEL5, Debian or SOLARIS On Centos7, I 've got problem ...
2
votes
1answer
19 views

Secure permissions setup for Drupal website with multiple maintainers

For several Drupal sites a colleague of mine and I (for demonstration purposes alice and bob) are responsible for maintaining these installations. We both have an SSH account to log into the server ...
-1
votes
0answers
7 views

403 error on subfolders on vhost [on hold]

i have a subdomain (virtual host) on my apache. The root-domain (sub.domain.de) is okay, but when i try to receive sub.domain.de/icons/ i get a 403 forbidden error. Here are my log files: [Thu Oct 30 ...
1
vote
1answer
27 views

Apache can't reading from documentroot with permissions for www-data

My OS is Linux Mint 17. My goal is allow reading of /mnt/wwwdata for root and apache only. I trying to setup apache document root in directory /mnt/wwwdata, with rights 0770 for group wwwadmins, ...
-7
votes
1answer
32 views

What is mean ETA in web hosting industry? [on hold]

All of our servers down. Our web hosting provider says "We do not have an ETA of when this problem will be resolved." What is mean ETA?
0
votes
1answer
23 views

How to respawn a script in RHEL/Centos6 when /etc/inittab has been deprecated?

I have a custom init script and I want that script to be respawned if in case the process dies. In RHEL/Centos 6 /etc/inittab is deprecated. So how should I ensure the process will be respawned?
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0answers
25 views

Output of 'ls' changes every time it runs in CIFS mounted windows share - RHEL 4

I have a RHEL 4 server in our organisation. One windows (2003) share is mounted on the server using CIFS. Output mount shows something like this: //windows.server.fqdn/share on /mnt/shared1 type cifs ...
0
votes
1answer
43 views

How to grep a continuous stream, with paging

I posted this to Superuser but got no takers: http://superuser.com/questions/832578/how-to-grep-a-continuous-stream-with-paging I want to take a log file and filter out some irrelevant log entries, ...
0
votes
1answer
21 views

Routing particular service over vpn

Running Ubuntu 14.04 LTS. I need to connect to a SMB share that isn't local. The only way I can connect to it is over a VPN. The particular VPN service is Juniper. Connecting to the VPN is easy and ...
-3
votes
0answers
25 views

Is there an existing FOSS solution that would allow me to increase bandwidth through inverse multiplexing? [on hold]

Alright, hear me out on this one. I have a Linux VPS (with very fast internet speed and bandwidth), an Android phone, and a Windows computer (I also have access to Linux/BSD computers, etc). On my ...
2
votes
2answers
36 views

Improving speed of large file transfer over high latency link

So, I've recently had the need to pull a large file over the internet from one of our offices overseas. Both offices have 50Mbit fibre links in both directions, but the round-trip-time is horrendous ...
1
vote
1answer
31 views

Copy file from Windows host to Linux host via Rsync, then set permissions

So I have a Windows SFTP server (SFTPSERVER), which receives files (duh). I then need to push those files to a Linux server (AD authenticated to my domain) elsewhere in my organzation. So that bit I ...
1
vote
0answers
15 views

Git/svn - keeping synced two repositories with different access rights

I've been advised by @PatrickQuirk to post this question here... There is just too much information online for me to understand and be able to get my own picture, so I gently ask the community to ...
0
votes
2answers
28 views

What is the benefit of cloudfares or inkapsulas etc ddos protection [on hold]

My Server get even more attacked via DDOS. And im thinking about buying a service like cloudfare or incapsule for preventing DDOS. But i dont understand one thing. When the attackers see that the ...
5
votes
3answers
622 views

Why does the “free” command and “dmidecode” show different values for RAM?

I've got a CentOS 5.10 (32-bit) server running on VMWare. It's allocated 4 GB of RAM. If I run dmidecode -t 17 | grep Size | grep MB I see: Size: 4096 MB Yet when I run free, I see: ...
-1
votes
1answer
28 views

Permissions/groups setup

I have setup up a Group that includes a few users (mygroup) then have set the owner of a web directory to be apache and the group to be mygroup. chown -R apache:mygroup /home/myweb Then I have set ...
0
votes
1answer
22 views

How can I configure my DHCP server to distribute IP routes?

I have a DHCP server (Linux, IPCop, dnsmasq) running on my default gateway server 192.168.0.1. I have a VPN endpoint on another server in the network (192.168.0.4). Is it possible to configure the ...
5
votes
3answers
281 views

Isolated development environment on Ubuntu

I want to create an isolated ubuntu environment on which to install and configure some applications that need to comunicate on the network and be accessed through http. I want to be able to run my own ...
0
votes
0answers
20 views

Linux: routing within 2 internal networks

We have a network that contains one gateway server with 3 network interfaces: eth0: (global IP) eth1: (internal IP 192.168.0.0/24) ib0: (internal IP 10.2.2.0/24) The other servers in the network ...
0
votes
0answers
20 views

lvm disk corrupt after force power down

I have virtual machine running on kvm host. But after force shutdown (unplugged power supply of physical server), virtual disk corrupted, cannot boot to OS (OS: CentOS 32bit, include 2 partition, ...
0
votes
0answers
58 views

Server bogs down during builds

I am one of 6 engineers using a common build server to build images for embedded Linux systems. The build server is a 40-cpu system. Occasionally (maybe once a month or so?), the system gets bogged ...
0
votes
0answers
16 views

Is it possible to use listening socket for initiating client connection?

Today I noticed such a situation: [root@cwf-hmaster.staging-scp ~]#netstat -taupen | grep 54310 tcp 0 0 ::ffff:10.0.12.209:54310 ::ffff:10.0.12.209:54310 TIME_WAIT 0 0 ...
1
vote
1answer
20 views

Postfix - Allow delivery for my domain but block mail to root@localhost for all but local system

I use Postfix as an MTA to receive mail for my domain. Recently I've started to get some mails coming in to root@localhost from external IPs trying to exploit bash. My bash is patched so I should be ...
1
vote
1answer
52 views

Find a script which writes in /var/tmp [duplicate]

I discover that one of my partition was full. rootfs 20G 1,8G 17G 10% / /dev/root 20G 1,8G 17G 10% / devtmpfs 7,8G 184K 7,8G 1% /dev none ...
1
vote
0answers
19 views

SNMP memory values do not match `free`

Compare this # free -m total used free shared buffers cached Mem: 72363 68035 4328 0 522 66294 -/+ buffers/cache: ...
1
vote
1answer
23 views

iptables destination NAT from one range to another

I am trying to make destination NAT from one range (192.168.2.0/24) to corresponding ip addresses in another range (192.168.1.0/24). I have managed to do this ip by ip iptables -t nat -A PREROUTING ...
3
votes
1answer
33 views

SLES 10 SP4 (x86_64) - HP Proliant DL380 G4 - Becomes unresponsive randomly

Had the misfortune of upgrading a HP Proliant DL380 G4 from SLES 10 SP2 (i586) to SLES 10 SP4 (x86_64). Although the installation completed smoothly, the server became unresponsive after a couple of ...
-5
votes
0answers
21 views

putty in Linux for router serial connection, tty, com? [on hold]

want to access Putty on Linux for setting up a router ,but once I opened the window I found it difficult to select the port type for the serial connection which I'm having with the router, The first ...
1
vote
1answer
28 views

Measuring network speed between many servers [on hold]

I have about two dozen servers. I need to measure the network speed between them. What tool / utility can I use for this case? Because it's a bad idea to do this manual, by iperf, for example. How ...
-1
votes
0answers
24 views

Can I configure incoming and outgoing policies separately in postfix

Can I configure incoming and outgoing policies separately in postfix. Example - Create a Transport_map only for outgoing mails.
1
vote
0answers
29 views

Server time won't remain set

So I've got a Linux machine running CentOS 6.5 and I've been trying to correct its timezone. I got it set once but for some reason it won't stay to what I set it as. The following steps I have ...
0
votes
0answers
11 views

How to config PORT KNOCKING on CSF and access it by linux?

I'm trying to run port knocking work on a CSF on a small VPS, i setup this: 1 - the result of csf first test ok 2 - TCP_IN = "53,80" TCP_OUT = "53,80,113,443" UDP_IN = "53" UDP_OUT = "53,113,123" ...
0
votes
1answer
17 views

sudo apt-get update change config files for puppet?

I booted up 3 vm in linuxmint. 1 puppetmaster and 2 puppet. 2 days ago I could run "sudo puppet agent --test" in both of the client without a problem. Today I was installing meteor in one of my ...
0
votes
0answers
21 views

Default gateway through static route

I want to forward all my trafic to a certain host on the internet, I'm not interested in any tunneling - I just want something like: route add -host x.x.x.x gw 10.0.0.1 route add default gw x.x.x.x ...
0
votes
0answers
26 views

htaccess rule on a js file

in my public folder I have a javascript file, data.js that is being called from various parts of my app. I want to add a .htaccess rules to that directory so that whenever data.js is called, the ...
-4
votes
2answers
38 views

How to find max supported disk on Dell PowerEdge R710

how do I find max supported disk on Dell PowerEdge R710 with PERC H700 using dmidecode or other utility ? I tried lspci, lsusb & dmidecode but i don't know the right way. System Information ...
2
votes
1answer
26 views

Malformed Line 61 (dist parse)

I run sudo apt-get update but it returns: E: Malformed line 61 in source list /etc/apt/sources.list (dist parse) E: The list of sources could not be read. I opened the sources.list via vim ...
1
vote
1answer
38 views

Relase outgoing mails to internet if local delivery failes

How can I release outgoing mail to the internet if local delivery fails in postfix? My server has virtual domains configured with mydomain.tld. When I send an email to somename@mydomain.tld it try to ...
0
votes
2answers
19 views

Allow sudo user to install packages from CentOS GUI

I've installed GUI on CentOS 6.5 with yum groupinstall basic-desktop desktop-platform x11 fonts but now when I attempt to use GUI Package Manager (Add/Remove software) to install packages, it asks ...
-2
votes
0answers
17 views

Requesting ideas for rapidly deploying Linux VPS servers with similar configurations [on hold]

I'm interested in rapidly deploying Linux VPS servers with similar configurations. I currently administer 4 servers that have decked out Litespeed, MySQL, WHM/cPanel, and security configurations. I ...
0
votes
0answers
11 views

ACL settings not being inherited properly when creating sub directory

I am trying to extend ACLs across sub directories that are being created under a parent but for some reason one of my groups is being switched to #effective r-x and the mask is being changed. Any ...
5
votes
2answers
122 views
+300

ps aux hanging on high cpu/IO with java processes

I'm having some issues with java process and nrpe checks. We have some processes that sometimes use 1000% cpu on a 32 core system. The system is pretty responsive until you do a ps aux or try to ...