Displaying 20 results from an estimated 10000 matches similar to: "CentOS 7 as a guest VM"
2019 Dec 03
2
CentOS 7 as a guest VM
Seems like its the single byte thing...
I tried adding:
int flag = 1;
if(setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &flag, sizeof(flag)) < 0)
but did not have any effect. I also did the echo 1 >
/proc/sys/net/ipv4/tcp_low_latency
seems to have no effect also.
Jerry
2015 Aug 07
3
Shared folders with Centos-7 guest in VMware-10 using open-vm-tools
try modprobe vmhgfs
--
Eero
2015-08-07 6:53 GMT+03:00 Bob Hepple <bob.hepple at gmail.com>:
> Bob Hepple <bob.hepple at ...> writes:
>
> > It's the shared folder that I would really like to get working. vmware-
> > hgfsclient reports my share but there is no /mnt/hgfs directory. Also
> > 'lsmod|grep hgfs' reports nothing.
> >
>
> also:
2019 Dec 03
1
CentOS 7 as a guest VM
Warren,
>Now that we?ve dispensed with Nagle, let?s get down to the actual issue.
Correct. I was trying to find something... Agreed that is on the sending
side - I am on the receiving side.
Are there other options that this single byte CR over socket is not getting
seen by my application. tshark shows its been received, I have tried to
skip my select() call and just call recv() with
2010 Sep 09
1
Shutdown CentOS VM when closing VMWare Workstation
Hello,
I'm using CentOS 5.5 / 16bit as a virtual machine in VMWare Workstation
and have installed the "VMWare Tools" by running vmware-install.pl and
vmware-config-tools.pl but can't figure out how to make the VM shutdown,
when I shutdown the Windows PC hosting it.
Does anybody please have any hints or scripts?
Do I need to use any VMWare modules if I just want to shutdown the
2015 Aug 10
0
Shared folders with Centos-7 guest in VMware-10 using open-vm-tools
Eero Volotinen <eero.volotinen at ...> writes:
>
> try modprobe vmhgfs
>
under open-vm-tools, the only module I know about is vmtoolsd and it is running:
[root at imp yum.repos.d]# systemctl status vmtoolsd
vmtoolsd.service - Service for virtual machines hosted on VMware
Loaded: loaded (/usr/lib/systemd/system/vmtoolsd.service; enabled)
Active: active (running) since Thu
2019 Dec 03
0
CentOS 7 as a guest VM
On 12/3/19 8:46 AM, Jerry Geis wrote:
> I am experiencing an issue that my process does not wake out of a select()
> call when a single character is received in an input file descriptor when
> running as a VMware guest.
>
> Anyone ever experienced this ?
>
> I can run tshark and see the character arrive, but my process does not wake
> up and see that character. Most times
2019 Dec 03
0
CentOS 7 as a guest VM
>You don't say what the app is written in but I ran into this with perl.
>perl apps can either be line buffered or character buffered ($| if I
>remember right is the switch). Line buffered means the buffer is not
>delivered until a newline character is received. If nothing else, try
>"<char>\n" and see if that gets consistently delivered.
That is the funny
2016 Jan 07
2
Re: unable to dissect libvirt rpc packets using wireshark plugin
Hi Michal,
Thank you for your suggestion. My apologies that I took sometime to get back
on further confirmation. Regrettably, my tshark is still unable to find
libvirt payload
inside packet capture, though it lists libvirt as a possible filter.
# rpm -ql libvirt-wireshark-1.2.9.3-2.fc21.x86_64
/usr/lib64/wireshark/plugins/1.12.5/libvirt.so
As I used wireshark 1.12.6 version, I
2009 Mar 04
1
performance problem with 3.2.8: unbuffered reads for some users
Hi!
I'm experiencing strange performance problems after upgrading to samba
3.2.8 from 3.0.30.
For all users except smbadmin (who has administrative rights), read
performance is _very_ bad. Looking at the read-requests using filemon
and wireshark, I found out that for those users, every read is handled
transparently (unbuffered) over the net. (I.e. a 2 byte read-request of
the application
2006 Jan 24
4
sftp performance problem, cured by TCP_NODELAY
In certain situations sftp download speed can be much less than that
of scp.
After many days of trying to find the cause finally I found it to be
the tcp nagle algorithm, which if turned off with TCP_NODELAY
eliminates the problem.
Now I see it being discussed back in 2002, but it still unresolved in
openssh-4.2 :(
Simple solution would be to add a NoDelay option to ssh which sftp
would set.
2009 Sep 28
1
is glusterfs DHT really distributed?
Hi All,
I noticed a very weird phenomenon when I'm copying data (200KB image
files) to our glusterfs storage. When I run only run client, it copies
roughly 20 files per second and as soon as I start a second client on
another machine, the copy rate of the first client immediately degrade
to 5 files per second. When I stop the second client, the first client
will immediately speed up
2014 Aug 18
2
need-restart ?
Hi,
today I updated the glibc packages on some CentOS machines. After the
Update I checked which
services/processes I have to restart "yum -C ps" or "needs-restarting"
At the most machines I get no information about necessary restarts, but
at two machines a long listing :
1 : /sbin/init
386 : /sbin/udevd-d
659 : /sbin/udevd-d
999 : /usr/sbin/vmtoolsd
1103 : auditd
1128 :
2023 Aug 07
2
Packet Timing and Data Leaks
On Mon, 7 Aug 2023, Chris Rapier wrote:
> > The broader issue of hiding all potential keystroke timing is not yet fixed.
>
> Could some level of obfuscation come from enabling Nagle for interactive
> sessions that has an associated TTY? Though that would be of limited
> usefulness in low RTT environments. I don't like the idea of having a steady
> drip of packets as that
2019 Feb 28
3
Asterisk - can't hear other side. Or other side does not hear us
Antony,
It is correct. Noone connects to Asterisk box/server from outside.Callcentric SIP trunk configured and Asterisk maintains connection to it itself. No special ports opened, nothing. Connection happens from us to Callcentric and all calls routed in from CallcentricI don't know exactly how it's doing it by it works.
Again, keep in mind it is working for many years for most / 90+% of
2015 Oct 26
2
unable to dissect libvirt rpc packets using wireshark plugin
Hi,
I am trying libvirt plugin in wireshark to dissect RPC payload in TCP, but
finding dissector code not really working.
My env is Fedora core 21 (x86_64) and installed packages are as follow:
wireshark-1.12.6-1.fc21.x86_64
libvirt-wireshark-1.2.9.3-2.fc21.x86_64
Earlier, just after installation, I noticed libvirt.so available only in
/usr/lib64/wireshark/plugins/1.12.5/ . Wireshark
2016 Jan 07
2
Re: unable to dissect libvirt rpc packets using wireshark plugin
Thank you Michal.
With your pcap, I could confirm that, libvirt dissector worked in my
environment as well.
Yes, it could be that, my pcap do not have libvirt rpc packets correctly
though I would have
expected. I am checking on it.
Regards,
Gowrishankar
On Thursday 07 January 2016 03:51 PM, Michal Privoznik wrote:
> On 07.01.2016 08:05, gowrishankar wrote:
>> Hi Michal,
>>
2008 Sep 03
6
eth0 on dom0 not working on a bridged conf
Hi,
I''ve installed xen 3.0.3 from packages (xen-linux-system) on a debian
etch, and i''ve configured it with network-bridge script in the default
way (netdev=eth0, bridge=xenbr0, etc...) which is ok for me.
the problem I have:
I cannot ping any outer machine from dom0 (nor any outer machine can
ping me). It gives me a "Destination Host Unreachable" message that
2004 Aug 06
1
Second patch again CVS version
On Sun, Feb 24, 2002 at 09:04:03AM +0100, Ricardo Galli wrote:
> Sorry, didn't explain well.
>
> Nagle's algorithm (rfc896) buffers user data until there is no pending acks
> or it can send a full segment (rfc1122).
>
> icecast doesn't need it at all, because it already sends large buffers and
> the time to send the next buffers is relatively very long.
IMO
2004 Aug 06
4
Second patch again CVS version
On 24/02/02 05:02, Jack Moffitt shaped the electrons to say:
> > - The server didn't check for the status of the client's socket before
> > the unblocking send(). This caused a disconnection at a minimun network
> > congestion, causing a broken pipe error (Linux 2.4 behaviour?) in the
> > network. I've just added a poll in sock.c.>
> Can you send me this
2002 Jan 26
7
[PATCH] Added NoDelay config option and nodelay subsystem option
Hello again!
Since there was some resistance against adding TCP_NODELAY uncontionally,
I've made another patch. The new patch contains the following:
* Added a NoDelay yes/no (default no) config option to ssh and sshd
* Added -oNoDelay=yes to the ssh command line for sftp.
* Changed the sshd subsystem config option syntax from
Subsystem name path
to
Subsystem name options path