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

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0answers
33 views

Iptables multiport and source ip

I have a rule which does not seem to allow traffic as expected -A INPUT -p tcp -m state --state NEW -m multiport -s x.x.x.x -d y.y.y.y --dports 38000:38100 -j ACCEPT If I remove the -s argument ...
0
votes
1answer
36 views

sip unreachable after changing routes using linux router

SIP server was unreachable after changing routes. I have 2 ISP ,ISP 1 is my default and ISP 2 is my back-up. I have a dialer behind linux router linux. Linux router has 3 ethernet cards. Router ...
7
votes
1answer
197 views

Linux/Unix - /etc/sudoers - host definition

can anybody tell me in which case the sudo host definition is useful? I mean this part of a line in the sudoers file: bob host1 = NOPASSWD: reboot In which environment (except sudo via LDAP) do I ...
2
votes
0answers
32 views

Understanding an OpenVPN bridge from iptable's point of view

In my scenario, there is a machine which acts as both an iptables-based firewall and an OpenVPN-server at the same time. It has two network interfaces - eth1 is connected to the internet whereas eth0 ...
-4
votes
1answer
35 views

Linux + Active Directory + login format

Can someone answer or point me in the right direction to allow users to login into linux boxes, via ssh, using only their username without specifying the domain? Example: joeshmoe@172.16.1.50(my ...
-3
votes
0answers
21 views

Changing nameservers on whm [closed]

Hey guys am running a website on digitalocean and i have changed my host to rockspace..I was using cpanel and whm on digital ocean .I have used whm on hostgator..When i change my host to rockspace ...
2
votes
1answer
18 views

EPC mode on Seagate Constellation using Linux

I need to set EPC mode on Seagate Constellation disks connected to LSI 9690SA-4l controller. This is because the controller is not compatible with the disks unless the EPC mode is set – according to ...
1
vote
1answer
30 views

can't get tomcat to offer TLS_ECDHE_ECDSA_… ciphers

my tomcat (7.0.52) Connector is configured with a cipher list like ciphers="TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, ...
1
vote
1answer
55 views

6 times slower disk write in RAID10 on Ubuntu 14.04 after rebuild

OS: Ubuntu 14.04 LTS Software Raid 10: 4x120Gb Intel 530 SSDs Initial tests: 1.2 GB/s Write 5.2 GB/s Read I did some tests to check if everything will go alright with a failed disk: I set as ...
0
votes
0answers
27 views

LDAP: forced to change root password on every login

I have finally configured my new server as LDAP-client of my existing one. Now, every time I login as root, I am prompted to change my 'LDAP password': login as: root root@111.111.111.111's password: ...
1
vote
1answer
30 views

Incoming FTP transfer not showing in lsof when using specific FTP client

I've got a script that continuously monitors an FTP dropbox directory and processes new files when they come in. The script runs lsof on each file before it tries to process it to determine if the ...
0
votes
1answer
21 views

OSSEC - Multiple VM's on a single DELL blade (XenServer Hypervisor)

I have a DELL blade with ~100 VM's (with a Citrix XenServer 6.1 hypervisor), all with ossec agent connected to a ossec server outside that same blade. I have a bit of a problem: they all run rootkit ...
0
votes
0answers
17 views

Odd behaviour with varnishlog and stream redirecting

I wrote a helper to debug varnish installation and have used it on both production and development server. The odd thing is, I encountered different behaviour even though the setup is nearly identical ...
-1
votes
0answers
21 views

Server Down Every 5 Hours? Centos NginxProxy

I have my websites on a Centos NginxProxy server with kloxo panel installed. My websites become unresponsive every 5 hours and then after a reboot becomes ok. I need help troubleshooting that. Here ...
3
votes
2answers
109 views

What to look for when buying a FiberChannel card?

I have a couple of these LSI arrays LSI Model 0834 LSI product name: 1932 LSI Product codename: Mary Jane Enclosure name: Shea (DM1300) End of Life: 31-Dec-2010 but I can't find any information ...
4
votes
1answer
65 views

CVE-2014-0196 Vulnerability for CentOS

Trying to patch CVE-2014-0196 Vulnerability but yum can't find packages updates CentOS 6.5 (Final) Panel version: 11.0.9 Update #61 # uname -r 2.6.32-358.11.1.el6.x86_64 # yum update kernel Loaded ...
1
vote
1answer
70 views
+50

Google reCAPTCHA not working on Linux system

I am working on integrating reCAPTCHA with my registration page and everything seems working fine except one strange issue. I have tested this code on all local machines and well on our test server ...
-2
votes
1answer
22 views

Separate io input/output in linux [closed]

My question is really short. Sometimes we have to separate i/o from a machine for example case of remote file system ? Why we do that ?
0
votes
2answers
36 views

Use different default documents for apache2 virtual hosts

I am setting up several sites on an ubuntu 14 server with apache2. I copied 000-default.conf and created a site1.conf. Then I changed some settings, reloaded apache2, and now almost everything ...
4
votes
3answers
62 views

How to Split a Huge CSV File in Linux?

I have 60TB of data that resides in 12 csv files. The data will be loaded into a clustered database where the loading processes is single threaded. In order to improve my load performance I need to ...
1
vote
1answer
37 views

mongod service not starting

I've installed mongodb in Debian Squeeze using this guide (guide here) Installed successfully. It was running well until I restarted the machine (using command "reboot"); After restart, mongodb is ...
0
votes
0answers
20 views

7z “is not supported archive” while updating an archive

7za u -pPasswored -mhe=on -r -m0=lzma -mx=9 -mfb=64 -md=32m '-x!temp' filename.7z /home/software While updating archive we are getting this error. Error: XXXXXXX.7z is not supported archive ...
4
votes
1answer
149 views

Making TCP dump without packets loss

How to make a TCP dump where it is guaranteed that all the packets that really pass through the network are captured, and nothing is missed? Details: We have an issue with 3rd party vendor who ...
0
votes
0answers
5 views

pppoe installation configuration option

I have centOS 5 server. I am trying to install rp-pppoe-3.11.tar.gz I also want to install ppp-2.4.5.tar.gz now with rp-pppoe-3.11 configuration option i found --enable-plugin=pppd_src_path build ...
0
votes
1answer
40 views

apache error logs issue

I have a vps server but the vps provider stop managed service. I having problem with logs file. Every thing seems was alright, but after few month auto logs deletion does not working. Every minute the ...
2
votes
1answer
43 views

How to run HTTPD as specific user(s) and not by nobody?

Currently, top shows me that almost all httpd processes are run by nobody. "Almost" because 2 of them are run by root. How can i make it in such a way that given i have users say: dartagnan, porthos, ...
1
vote
1answer
69 views

Using foreman to provision a vm with static ip

I am trying to provision a vm with Centos6.5 on vmware with a static ip address using Foreman 1.5.1. However, the vm's keeps getting provisioned with a dhcp address. Im doing a network based install. ...
11
votes
3answers
404 views

How to continue redirecting stdout to a file after logrotate moves it?

I have a simple script which outputs a bunch of logs to screen and I piped the STDOUT to a file to store the logs. Since this script is long running, I needed to rotate the log files so they are ...
-1
votes
1answer
47 views

SSL certificate installation problems [closed]

I have been following a set of steps provided here comodo Step 2 advises me to place my .crt and .bundle files inside directory etc/ssl/ In my server with FTP it shows I have a empty etc/ directory, ...
-2
votes
0answers
50 views

monitoring linux servers with net-snmp [closed]

I've installed HP Insight Remote Support on a windows 2008 Ré server to monitor all servers. On HP IRS console I can monitor windows servers. I see linux servers but I can't monitor them because it ...
2
votes
1answer
21 views

Suppress chrome's first-time dialog on linux

I'm trying to install google chrome using puppet on a bunch of linux machines (SLES 12) and I don't want any dialogs that the user has to answer before they can start browsing. This is mainly because ...
0
votes
0answers
26 views

Can I change venet0:0 main ip to venet0:1 ip?

I would like change my main IP from venet0:0 to venet0:1. Is this possible? This is my ifconfig: [root@marketport tmp]# ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 ...
1
vote
0answers
169 views

Issue with RHEL7 and disabling NetworkManager

Okay community, let's see if we can figure this one out, cause I'm out of answers. Where I work I am setting up a bunch of RedHat Enterprise Linux servers. There is a collection of RHEL6 and RHEL7 ...
3
votes
2answers
66 views

Backup MX server used to queue mail

In short: I need to setup backup MX server, which will queue messages it receives for later delivery through original MX, AND it must only accept messages for mailboxes which will be listed in ...
1
vote
2answers
30 views

run second mysqld instance for backup restore

I am trying to start a second mysqld instance to restore data from backup (innoDB). Following the manual I put together this: P="/var/lib/reoback/backups/2014-06-30/var/lib/mysql" cd $P mkdir tmp ...
0
votes
1answer
40 views

Can I replace Harddisks to change the OS

I have a Server machine which I want to use with two Operating Systems. I cannot do the below things : 1. Use a virtual machine. 2. Install a dual boot I already have windows installed on the ...
0
votes
4answers
82 views

How do I change multiple linux servers' /etc/fstab simultaneously

We have plenty of linux server that will mount a few linux file server by NFS or SMB using /etc/fstab But manually changing each server's /etc/fstab is very tedious. Is there any way to edit ...
0
votes
0answers
22 views

Red Hat with rpc.statd is not running and can't start nfslock

I try to mount from Linux machine to some folder on win machine. From the output I see that mount complains about rpc.statd. So I tried to start the nfslock but I got FAILED. Then I look on the ...
0
votes
0answers
6 views

User under windows server AD access Linux server using kerberos

I installed AD on windows 2008 r2 sp1 server . And had configured all things follow the issue http://msdn.microsoft.com/en-us/library/ms995329.aspx ...
3
votes
1answer
26 views

VLAN configuration in linux not showing tags in tcpdump

i bonded 2 NIC and specified VLAN tag of 11 cat /etc/sysconfig/network-scripts/ifcfg-bond0.11 DEVICE=bond0.11 ONBOOT=yes VLAN=yes NM_CONTROLLED=no STP=no HOTPLUG=no also ifconfig bond0.11 ...
0
votes
2answers
36 views

Apache server on centos (by VMware)

I have a windows server 2012 and it has a valid IP address in internet. I installed VMWare on windows server and create a Linux CentOS virtual machine in VMWare. In the Linux i run Apache server and ...
-1
votes
0answers
24 views

Cannot install php5-dev in Debian?

I have a problem when I want to install php5-dev sudo apt-get install php5-dev the result is like this php5-dev : Depends: autoconf (>= 2.63) but it is not installable Depends: ...
0
votes
0answers
36 views

How to access atomia DNS web app over public IP?

Don't know if anyone here used Atomia DNS but after installing everything and trying to access web app over public IP and port that Atomia uses, nothing happens. I get "This webpage is not available". ...
2
votes
0answers
51 views

Can I rely on scsi host numbers to always stay the same?

I want to detect whether a disk is attached to the correct sata-port. While lsscsi gives me some useful information about the used host, I was wondering whether the SCSI host number will always stay ...
-4
votes
2answers
37 views

Linux User generation script [closed]

Was wondering if someone could point me in the right direction. I'm wanting to create a simple bash script to create user account. The script will need to prompt the admin for a username and ...
0
votes
0answers
9 views

SNMP OID for CPU model information

I am currently trying to find the oid / way to gather the CPU model name from a server using SNMP. I have tried looking up the specific oid for it however all I could find were ones that related to ...
0
votes
0answers
11 views

sar -b reports much too high statistics, are the I/O counted twice?

On a Linux server sar -b reports much too high read block statistics, sometimes 3.500.000 readb/s peak and around 2.500.000 readb/s sustain, which makes more that 1 gigabyte/s (according to the sar ...
0
votes
0answers
9 views

Ctrl-C is ignored by pppd when put in a shell script

I'm trying to connect to GPRS network through a serial port connected GSM modem. When I call /usr/sbin/pppd call <peer_name> from the command line, It correctly receives and handles Ctrl+C from ...
0
votes
2answers
36 views

How to use the new ifdown and ifup?

I would like to change the MAC address on a Fedora 2o webserver, but it seams that ifdown and ifup doesn't work like they used too before systemd were introduced. This is what I would like to do ...
5
votes
1answer
53 views

rootsh running issue in normal user

I have installed rootsh and it's working fine in CentOS 6. But its logs are written both to /var/log/messages and /var/log/rootsh/. I want the logs to only be written to /var/log/rootsh/, not to ...