similar to: deny other hosts from synchronizing time with NTP client

Displaying 20 results from an estimated 1100 matches similar to: "deny other hosts from synchronizing time with NTP client"

2006 Nov 02
1
avoiding a loop: "cumsum-like"
Hello Rhelpers, I need to run the following loop over a large number of data-sets, and was wondering if it could somehow be vectorized. It's more or less a cumulative sum, but slightly more complex. Here's the code, and an example dataset (called tab in my code) follows. Thanks in advance for any suggestions! res<-0 for (i in min(tab$Date):max(tab$Date)) { if
2007 Nov 08
2
connect: Invalid argument (ping local interface)
Hi Centos Users # ping 10.104.89.146 connect: Invalid argument The Server has normal network connectivity. I ssh into it over this interface. Strace output on Pastebin [0]. SELinux is disabled. Centos 4.3 cheers Simon [0] http://pastebin.com/m720052a8 -- XMPP: sjolle at swissjabber.org
2007 Nov 14
2
IP range of Google Analytics server farm
Hi Centos Users I would like to allow outgoing traffic to Google Analytics servers (destination port 80). I wish to do a iptables rule. How to whitelist all Google Analytics servers? cheers Simon -- XMPP: sjolle at swissjabber.org
2008 Jan 21
1
Centos 5.1 DomU on Debian Etch Dom0
Hi Centos users I successfully installed a Centos 5.1 DomU on Debian Etch Dom0. I used the virtual file systems from Jailtime[0] How to this manual (without using Jailtime)? I wish to install from Scratch. Xen-tools/rpmstrap doesn't work for me. cheers Simon [0] http://jailtime.org/ -- XMPP: sjolle at swissjabber.org
2008 Feb 18
1
kernel-devel: compile MPP/RDAC kernel module
Hi Centos Users I am running Centos 4.6 wit latest updates. For I/O multipathing I need to use kernel 2.6.9-55 (IBM support matrix). Trying to compile Engenio Linux RDAC Driver[0] I fail to install kernel-devel for this exact kernel (with up2date). Up2date always installs the newest. # make clean make V=1 -C/lib/modules/2.6.9-55.ELsmp/build M=/root/tmp/linuxrdac-09.02.B5.15
2008 Apr 25
3
dmidecode for CentOS 2.1? [hardware serial number and type]
Hi CentOS users I have here old CentOS 2.1 server on IBM Xseries 336. How to see serial number and machine type? It seems that "dmidecode" is not available for CentOS 2.1 cheers Simon -- XMPP: sjolle at swissjabber.org
2007 Nov 09
3
32 Bit vs. 64 Bit Linux Server installation
Hi Centos Users What are the advantages of 64 Bit and respective 32 Bit installation of Centos? With PAE 32 Bit installation can address huge amount of RAM. As a desktop system, I prefer 32 Bit installation because of teething troubles in 64 Bit Linux world. When would you choose 64 Bit and when 32 Bit? We are running mostly application and web services. Is this true that with 32 Bit
2008 Apr 23
0
AW: Re: deny other hosts from synchronizing time with NTP client
On Tue, Apr 22, 2008 at 5:07 AM, Simon Jolle <urandomdev at gmail.com> wrote: > The problem is that other hosts are able to synchronize the time from > our servers. How to disable that? Which other hosts? Other hosts in the same subnet as dns1 and dns2? If that is the problem, maybe you should try changing "mask 255.255.255.0" to "mask 255.255.255.255". The
2007 Aug 23
2
UTC vs local time
Hi list I always configure my systems to use our local time (in my case /usr/share/zoneinfo/Europe/Zurich) and disable UTC. What are the differences between UTC and local time? What are their respective advantages and disadvantages? When to use UTC? cheers Simon -- XMPP: sjolle at swissjabber.org
2007 Aug 22
1
quick FTP server with default vsftpd installation
Hi list I just installed vsftpd and started it (CentOS 5). Then put some files in /var/ftp/pub (for testing purposes with rights 777) and try to connect with local user to download those files. $ lftp test at localhost Password: lftp test at localhost:~> ls ls: Login failed: 500 OOPS: cannot change directory:/home/test lftp test at localhost:~> pwd ftp://test at localhost How to enable
2008 Mar 06
3
/usr/bin/ld: skipping incompatible
Hi Centos Users I try to compile SNMPPD (SNMP Proxy Daemon) on Centos 5.1 x86_64 with latest patches. Dependencies (like libsplit, net-snmp-libs, net-snmp-devel, net-snmp-libs) are installed, both 32 and 64 Bit. # rpmbuild -tb snmppd-0.5.2.tar.gz [...] Making all in snmppd make[2]: Entering directory `/tmp/snmppd-0.5.2/snmppd' gcc -Wall -Wno-uninitialized -Wchar-subscripts
2008 Mar 03
2
recommendation for Virtual Dedicated Server based on Centos
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Debian Users I am searching for a virtual server/rootserver. I prefer a Xen instance, but also vservers are acceptable. Will be host a small Wiki - nothing mission critical. Here my criteria - - about 20 $ monthly - - payable with Credit Card or PayPal - - about 12 GB diskspace - - about 256 MB RAM - - about 350 GB monthly data transfer - -
2010 Aug 12
2
Date drift and ntpd
We have a local time server and all of our machines are pointed at it for the time. How can the clock drift by a day and a half? [root at devserver21 ~]# date Fri Aug 13 14:43:29 EDT 2010 [root at devserver21 ~]# rdate -s 192.168.1.67 [root at devserver21 ~]# date Thu Aug 12 07:02:39 EDT 2010 [root at devserver21 ~]# cat /etc/ntp.conf | grep -v ^# | grep -v ^$ restrict default nomodify notrap
2009 Jun 29
2
[PATCH node] Change DNS setup to match NTP. rhbz#508677
Rather than expecting the DNS entries to be on one line, they are now entered as two separate entries. Also fixes a bug that caused the first DNS entry to be lost when a second entry was provided. Signed-off-by: Darryl L. Pierce <dpierce at redhat.com> --- scripts/ovirt-config-networking | 31 +++++++++++-------------------- 1 files changed, 11 insertions(+), 20 deletions(-) diff --git
2007 Oct 31
3
Enable Repositories: [Errno 14] HTTP Error 404: Not Found
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Centos Users How to enable Repositories mentioned in "What are all the CentOS repositories (directories) and what is each one for?" [0] # yum -y update Loading "installonlyn" plugin Loading "protectbase" plugin Setting up Update Process Setting up repositories base 100%
2009 Nov 22
4
system time automatically fowards in time and then comes back to normal
Hi friends, I am running Nagios 2.7-1 on Centos 5.0 32-bit hosted on Vmware ESX 4.0. The issue I am seeing on the server is sometimes nagios is showing the below messages in /var/log/messages and as the system time gets changed some false alarms gets generated. I searched it on the google but I am not able to find the correct solution. I even posted on the nagios forum and they asked me to see
2009 Aug 12
2
ntp will not drift to correct time
Hi On 5.3 i have a situation where some boxes have been 3 or 4 seconds out and restarting ntpd has fixed the issue. What i dont understand is why the clocks did not drift to the correct time when the config seems correct in that restarting ntp did correct the time. Is there something 'special' i need to do in order for the drift to work? $ cat /etc/ntp.conf restrict default
2008 Mar 21
1
RHEL on The Pirate Bay, Mininova, etc
Hi Centos Users Its _really_ nonsense to release RHEL version on file sharing networks. The only reason why RHEL is so popular on torrent trackers is the lack of knowledge about Centos :-) Conclusion: we should do more marketing :-) cheers Simon -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes
2008 Mar 16
2
which open source wiki CMS?
Hi Centos Users I am searching for an Open Source Wiki CMS based on PHP/MySQL. There are so much out there, thats why feel free to share you experience. Please review your favorite Wiki software. Code quality, security, features and continuous, stable development. cheers Simon
2005 Jun 28
1
multihome network problem
My firewall''s configuratione is like this: |-FW--------------------| | eth0 - LAN | | IP1_ISP1 - eth1 | | IP1_ISP2 - eth2 | |-----------------------| I have configured firewall as specified on http://lartc.org/howto/lartc.rpdb.multiple-links.html and all works ok, except for connections between my firewall and other hosts of "other" ISP. Example: I