similar to: looking for ideas about how to create a constant data stream

On 30/05/2020 12:32, hw at gc-24.de wrote: Hi hw, > I'm looking for a good way to create a constant data stream that will occupy a > bandwidth of about 2--5Mbit/sec between two remote hosts over the internet. I > have full access to the hosts involved. > > My first attempt to use scp to copy data from /dev/null on host A to /dev/null > on host B, but scp says

Hi folks, I've got a Dell R320 running CentOS 7, and a 10G NIC. I'm running a DNS server on it, for testing. As part of my testing, I'm attempting to capture all the DNS queries arriving on the server, using tcpdump. However, tcpdump's performance is abysmal, and it loses lots of the packets. Here's the output when I stop the capture: # tcpdump -nn -i p1p1 -w

I am setting up a file server with CentOS 7. I'm seeing performance which is considerably slower than a similar server running CentOS 6.6. A 3Gb directory can be copied to/from the CentOS 6.6 server in about 50 seconds. The same directory takes about 270 seconds to copy to/from the CentOS 7 system. I see the same performance difference with NFS mounted file systems or using scp, so it

On 28/06/15 02:17, Joseph L. Casale wrote: > Your script within the rpm should have the logic. Clearly if > you know how to update it, you know how to identify if it > needs updating. Thanks Joseph. I am aware of this option, but it would be only a last resort, because checking the format of the config file is error-prone. I would prefer RPM to tell me the old and new version numbers,

Hi there, I have a question about the "server-count" option. nsd.conf(5) simply states that it tells NSD to "start this many NSD servers", with no further commentary. Is there a situation where this value would ever be anything other than 1? Should it equal the number of available CPU cores? Cheers, -- Gavin Brown Chief Technology Officer CentralNic Ltd Innovative,

Le 18/02/2020 ? 12:28, Anand Buddhdev a ?crit?: > Neither. The DNS configuration should not normally be bound to a > specific interface, so don't configure it with any interface. If you do, > and that interface goes down, your DNS config also disappears. I would like to do that very much, only NetworkManager makes you jump through burning loops to do so. With network-scripts, it

We're using ansible to configure our CentOS 6 servers, and we have a task to install a specific version of a package: - name: install thrift2 yum: name=ripencc-thrift2-{{ version }} In this ansible task, the "version" variable is set by the operator. When we want to upgrade, it works. But today we had to downgrade, and noticed that ansible wasn't downgrading it. So we tried

Dear CentOS hive mind, I'm trying to package up a perl module into an RPM for easy deployment. I want it to be as self-contained as possible (to avoid version issues with perl modules in base or EPEL). So in my spec file, I'm doing: curl -L http://cpanmin.us | perl - App::cpanminus -L %{buildroot}/opt/zonemaster Zonemaster This way, cpanminus is installed first, and then it goes on to

I'm using the standard Dovecot 0.99.14 on Fedora Core 4, with a Maildir++ mailbox. I've noticed what I think is an oddity in the way dovecot handles messages: According to the Maildir specification, a message in Maildir/new is a truly new message, which has not yet been touched by any reader. From an IMAP viewpoint, such a message should have the flag RECENT. However, if a message exists

On 11/10/16 15:23, Richard Mann wrote: > Did your google break? > > For just IPv6 > nslookup -type=AAAA www.example.com > > For all records > nslookup -type=any www.example.com This is bad advice, because in DNS, ANY != ALL If you query with qtype=any, and you ask a caching resolver, then it will return to you all the records that are in its cache at that time, which

On 04/12/2023 13:47, Jean-Christophe Boggio via nsd-users wrote: Hi Jean-Christophe, > When syncing between master and slaves, am I supposed to see new files > appear in the slave's "zonesdir" directory? Because, as you might > expect, I see nothing here. Is this behavior normal? From what I > understand, the slave "caches" the data in /var/lib/nsd/nsd.db

Hi CentOS folk, In an RPM post-install script, is it possible to know the previous version number, and the new version number of a package if it's an update? I need to know this, because for a certain package, if updating from version 1.x to 2.x, I need to run a program to convert the config file of the package from version 1.x format to version 2.x format. I've looked at SPEC file

On Sun, Apr 19, 2020 at 9:26 AM Anand Buddhdev <anandb at ripe.net> wrote: > > On 19/04/2020 14:58, Jeffrey Walton wrote: > > Hi Jeffrey, > > > The offending host is 59.64.129.175. To err on the side of caution we > > attempted to block the entire netblock. According to whois data, > > that's 59.64.128.0-59.64.159.255. > > > > iptables -A

On 05/07/2018 14:18, Jonathan Billings wrote: > The /var/run symlink to /run is part of the 'filesystem' package, and > has existed as a symlink since 7.0.1406 was released: > > $ rpmls -l http://vault.centos.org/7.0.1406/os/x86_64/Packages/filesystem-3.2-18.el7.x86_64.rpm |grep /var/run > lrwxrwxrwx root root /var/run I've never seen "rpmls". Is it

Dear openssh developers and users, I'm new to the list, and my apologies if this question has been asked before. I've tried to look for answers and haven't succeeded, which is why I'm asking. Here's the situation: I'm connect to a dual-stacked host with A and AAAA records. The IPv6 connectivity to the host is broken. When connecting to the host directly from my client

On 29 June 2015 at 07:37, John R Pierce <pierce at hogranch.com> wrote: > so a regex looking for "system:" vs "system {" should nicely delineate > these. I dunno, I might even put that into the conversion utility and > have it just quit if the file is already in the new format, and always run > it. > ?+1 for the idempotent approach. IMHO much more

Hello I have this problem since a week or so: The nsd daemon crashes unexpectedly and the nsd log files shows this: [1200299533] nsd[3736]: info: XSTATS 1200299533 1200298484 RR=0 RNXD=0 RFwdR=0 RDupR=0 RFail=0 RFErr=0 RErr=0 RAXFR=0 RLame=0 ROpts=0 SSysQ=0 SAns=40 SFwdQ=0 SDupQ=0 SErr=0 RQ=37 RIQ=0 RFwdQ=0 RDupQ=0 RTCP=0 SFwdR=0 SFail=30 SFErr=0 SNaAns=0 SNXD=0 RUQ=0 RURQ=0 RUXFR=0 RUUpd=1

Mark Haney <mark.haney at neonova.net> writes: > On 10/03/2017 01:12 PM, hw wrote: >> >>> See >>> >>> https://developers.redhat.com/blog/2016/09/20/managing-temporary-files-with-systemd-tmpfiles-on-rhel7/ >>> >>> how to manage tmpfiles. >> Thanks, I?ll look into that. I wouldn?t consider a directory like >> /var/run/mariadb

Hi folks, RHEL 7 documentation says that if either ntp or chrony is running on a system, then it will enable the kernel feature to sync system time to the hardware clock every 11 minutes. This needs the CONFIG_RTC_SYSTOHC option to be set. However, it looks like this option is not set for CentOS kernels: # fgrep CONFIG_RTC_SYSTOHC /boot/config-3.10.0-862.14.4.el7.x86_64 # CONFIG_RTC_SYSTOHC is

Hi NSD developers, I have been experimenting with the "store-ixfr" feature in NSD. I have a configuration with: server: zonefiles-write: 0 pattern: store-ixfr: yes With this configuration, NSD transfers zones from a primary, and keeps them in RAM. When the zones are updated, it receives and stores the IXFR in RAM too. I can query NSD with the IXFR qtype, and it replies with