Displaying 20 results from an estimated 4000 matches similar to: "dhcp + static dns"
2012 Feb 17
1
smartd and smartctl
A few weeks ago, one of my servers started complaining, via smartd, that
one drive had one unreadable sector. I umounted it, and ran an fsck -c,
then remounted it. Error didn't go away. Now, what's really annoying is
that I've gotten back to it today, and it's reporting the problem, as it
has for weeks now, every half an hour.
However, when I run
> smartctl -q errorsonly -H -l
2012 May 02
1
DKIM Pass - Fail
Hi Dear Community Friends,
it is few days now, i am trying to figure out why DKIM is working / not
working. Any assistance would be very much appreciable.
Server IP is not blacklisted ever, MX, PTR SPF, DKIM records are available
in DNS. why it is working at Gmail, why failing at Yahoo?
Gmail
dkim=pass header.i=@digital-infotech.net
Yahoo:
domainkeys=neutral (no sig);
2010 Dec 28
3
Hello
Hello I need a clean link for a Cent us download please I don't want to risk any virus'.
Thank you kindly for such a wonderful program!
2011 Nov 18
2
ip command
Hi all,
I have this network:
10.1.20.0 - 10.1.23.0 /22
Broadcast 10.1.23.255
Say I have a machine with IP: 192.168.1.1
Now, I want to create virtual IP on it with ip command:
1. Is this ok?
ip addr add 10.1.22.100/22 dev eth0:1
2. Should I define the broadcast too in the above command?
If I don't define it, will the above command means the broadcast would
be 10.1.25.255?
Thank you.
Fajar.
2012 May 31
4
question for those who run mail servers
Not technically a centos question, but a lot of you guys seem to manage
some large systems
and I could use some clarification on a postfix setting.*
*reject_unknown_client_hostname
(in postfix < 2.3 reject_unknown_client)
When I first used this there were issues with users trying to send mail
through the server
from hotels, wireless spots, etc. This was solved by pushing up permit
2011 Nov 16
2
Where is source address info of a route kept?
I have an ethernet device in my lan with a primary address 192.168.5.205
and a secondary address .217. I added the secondary address after network
startup established the primary address by an ip addr add command:
# ip addr add 192.168.5.217/24 broadcast 192.168.5.255 dev eth0
# ip addr show
...
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether
2012 Apr 10
3
Removing LVM
I have a CentOS 5 machine in which I'm trying to remove lvm. I dd'ed the
file system to another partition, then dd'ed it back overwriting the lvm
partition. I then modified menu.lst and fstab and replaced the paths to
point to the correct device.
When the system boots it's still looking for lvm. I can restore the
system back to where it was with lvm, but I'm not sure what
2011 Jan 05
3
cron jobs fail to run
hey centos
long time no hear! :) I'm having a small issue where the backup jobs
that I set to run in the crontab of the backup user do not appear to
be running. Here's how I set it up (with crontab -e as the backup
user):
run amanda every night (check at 2:45 and backup at 3)
45 2 * * * /usr/sbin/amcheck /var/log/amanda/crontab/amcheck.log
* 3 * * * /usr/sbin/amdump
2012 Mar 09
2
Running processes
Hello,
I was wondering if anyone could tell me why so many processes are started on
my system? Here is a list of them. I am trying to figure out why they are
running and if I can stop them. Thnx.
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 2 0.0 0.0 0 0 ? S< 19:33 0:00 [migration/0]
root 3 0.0 0.0 0 0 ? SN 19:33 0:00 [ksoftirqd/0]
2013 Apr 25
7
Cents OS from Bash Shell
I want to know the right command to type from a bash shell so that i can
1) Check the version of my cent os
2) Check all the open ports (tcp and udp) on my machine
3) Open a specific port say port 3306 so that a telnet request from a
remote machiene can be accepted
4) Disable the effect of 3 above in case I want to
Thanks in anticiaption of your kind responses to the questions
2016 Dec 07
4
You have not permission to view content of this location
OS: CentosOS 7
I have installed samba + openldap + smbldap-tools + pam by:
yum --enablerepo=extras install -y epel-release
yum install -y smbldap-tools
yum install -y samba openldap openldap-clients openldap-servers migrationtools
yum install -y nss-pam*
I know that smbldap-tools is a dead project, but I'm interested in it and would like research on it.
I create users and
2009 Oct 08
12
resolv.conf rewritten every reboot. How to figure out who and why?
My machine has a static IP, with dhcp and IPv6 disabled. Every time I
reboot, some process rewrites /etc/resolv.conf, including a comment
about dhcpclient. The only package I have installed that shows up in
"rpm -qa|grep -i dhcp" is dhcpv6-client-1.0.10-16.el5, and nothing in
there is named dhcpclient.
I'd like to figure out what software is rewriting this file and why.
man 5
2011 Feb 10
1
dhcp fail over
Hi all,
Few questions.
Does DHCP failover work with statically assigned nodes?
Seems like the failover statements only work in shared networks with
non bootp clients?
I'm assuming Centos 6 will have DHCP v4.2? Currently 5.5 ships with
v3.0.5b.
And will DHCP v4.X have easier failover implementation?
Thanks in advance,
- aurf
2019 Jan 22
3
Yum refuses to install kmod-8188eu from elrepo
On 2019-01-22 11:01, Akemi Yagi wrote:
> On Tue, Jan 22, 2019 at 7:54 AM Marko Vojinovic <vvmarko at gmail.com>
> wrote:
>>
>>
>> I am having trouble using the realtek wifi chip in my new tp-link
>> usb wifi dongle. Upon plugging it, the device gets registered by the
>> kernel (in /var/log/messages), but that's about it, no network device
>>
2018 Feb 16
2
Ubiquiti Model UAP-AC-PRO
Mike Burger wrote:
> On 2018-02-16 8:16 am, hw wrote:
>> William Warren wrote:
>>> I would just buy a cloudkey and not have to bother installing the software
>>> onto your machine directly.? If you do not have a power over ethernet
>>> switch you'll need a micro USB cable and power supply adapter to run it but
>>> after that it takes care of running
2014 Dec 26
4
Fail2ban mail failures ???
I'm using fail2ban with CentOS 6.6. Something is causing fail2ban's
alerts sent to root's mail to be rejected. Here's a clip from one of the
error messages:
Message 48:
From MAILER-DAEMON at lion.protogeek.org Sun Dec 21 03:09:20 2014
Return-Path: <MAILER-DAEMON at lion.protogeek.org>
Date: Sun, 21 Dec 2014 03:09:19 -0600
From: Mail
2013 Feb 11
2
About DNS service
I've followed these commands successfully :
- yum install bind bind-chroot bind-libs bind-utils
- service named start
When I used " host x.domain.com localhost"
I got :
using domain name server :
name : localhost
address : 172.0.0.1#53
host x.domain.com not found: 2(SERVFAIL)
I've changed the ip settings from (Automatic dhcp to manual ) but with the
same result...
--
2018 May 21
3
LVM GUI in live CD
Hi,
? I am searching around and I can?t find any GUI LVM manager included in
a Centos live CD.
? I am trying to resize a LVM partition in a Centos 6.9 machine with a
live CD.
? If I need any other distro, It?s fine with me
? Thanks!
? Miguel
?
2013 Feb 25
4
mixing MX and CNAME
Hi,
Has any one had problems with mail clients were your DNS is like this;
doman.com MX 50 mail.domain.com
domain.com MX 100 mail2.domain.com
domain.com CNAME www.domain.com
-aurf
2013 Jun 07
2
qemu-img resize
Hi,
I've been using qemu-img resize for a few days now, seems fine.
But if I du the VMs image file, it still shows the size before resizing.
Inside that VM, the new size shows correctly.
Is qemu-img resize the right tool for this?
Once I qemu-img resize, I then use various fdisk/ LVM tools, etc... to resize within the VM just incase you all were wondering.
- aurf