search for: tcp_nodelay

...ndows 95. If I do a net view \\monster1 I get the following error messag Error 54: The network is currently busy processing other requests or is out of resources. Try again later, or verify your network configuration to be sure that enough network resources are specified. Unknown socket option TCP_NODELAY Unknown socket option TCP_NODELAY This is from the /var/log/samba log file. Unknown socket option TCP_NODELAY Unknown socket option TCP_NODELAY Unknown socket option TCP_NODELAY Unknown socket option TCP_NODELAY Unknown socket option TCP_NODELAY Unknown socket option TCP_NODELAY Unknown socket opt...

..., which really wants the first thing it receives from an IMAP server to be a valid imap greeting... which $subject is not. $ ssh -o "proxycommand sh -c '( echo CONNECT %h:%p HTTP/1.0; echo; cat ) | nc 192.168.0.1 3128'" pentafluge.infradead.org exec bin/courier-imap.sh getsockopt TCP_NODELAY: Socket operation on non-socket * PREAUTH Ready. In fact, it's probably never necessary to bitch about it, so let's make it a debug message only... Index: misc.c =================================================================== RCS file: /cvs/openssh/misc.c,v retrieving revision 1.37 di...

...exactly it does). Now I understand! > > -----Oorspronkelijk bericht----- > Van: icecast-bounces@xiph.org [mailto:icecast-bounces@xiph.org]Namens Henri > Zikken > Verzonden: zondag 25 december 2005 15:05 > Aan: icecast@xiph.org > Onderwerp: [Icecast] Use of TCP_CORK instead of TCP_NODELAY > > > We're abusing icecast in a true narrowcasting setup (personalized stream per > mountpoint). The streams itself are created in a piece of proprietory > (spelling?, i'm dutch) software, icecast merely relays them. > > However, the intended endpoint is an embedded de...

...pes. Everything with this setup works great. I have an application that runs on the linux side that port forwards to the Cygwin side, and sends a small control packet (4-8 bytes) at a rate of 30 times per second to an application on the Cygwin side. Because of this, the control application uses TCP_NODELAY in order to send it out as soon as it can. If I do not use SSH port forwarding, the control packets are sent at a steady rate. If I use the SSH port forwarding, the data is buffered, and sent in bursts. With this, the packets build up, so nothing is sent for 6 to 10 frames, and then all are sen...

https://bugzilla.mindrot.org/show_bug.cgi?id=2124 Bug ID: 2124 Summary: TCP_NODELAY not set by sshd for non-interactive non-exec sessions Product: Portable OpenSSH Version: -current Hardware: All OS: All Status: NEW Severity: trivial Priority: P5 Component: sshd A...

Hello, I found the folloing message in log.smbd [2001/04/18 13:00:41, 0] lib/util_sock.c:set_socket_options(165) Failed to set socket option SO_KEEPALIVE (Error Bad file number) [2001/04/18 13:00:41, 0] lib/util_sock.c:set_socket_options(165) Failed to set socket option TCP_NODELAY (Error Socket operation on non-socket) so I searched TCP_NODELAY in the INCLUDEFILES: (/usr/include/sys) > grep -i TCP_NODELAY * xti_inet.h:#ifndef TCP_NODELAY xti_inet.h:#define TCP_NODELAY 0x1 /* must be same as <netinet/tcp.h> */ xti_inet.h:#define T_TCP_NODELAY 0...

Michael, With regard to your comment below: > As a streaming server, it's fairly crucial for icecast to send out > data with as low a delay as possible (many clients don't care, but > some do). That's why we use TCP_NODELAY - we actually WANT to send out > data as soon as we can. Can you explain how some clients depend on a low delay when receiving data from icecast? How is the use of TCP_CORK going to break those? Would the application level buffering currently used in format_mp3.c not cause the same problem? Is...

I know that there was a discussion on this about a year back, and there is a bug 556 this week that mentions TCP_NODELAY. However, when I use ssh through a pipe (e.g., to tunnel through an HTTP proxy using CONNECT) I see: getsockopt TCP_NODELAY: Socket operation on non-socket How do I tell which end is generating this (I'm assuming the local side, which is running through the pipe). Also, does anyone care, or...

...;m dutch) software, icecast merely relays them. However, the intended endpoint is an embedded device. This device has trouble with tcp/ip packets not matching the max. packet size (MSS or MSS minus header). After eleborate testing, we found that using the sockopt 'TCP_CORK' instead of 'TCP_NODELAY' produces far better results on the field on reconnects etc/. Also, with streaming media, TCP_CORK is more efficient than TCP_NODELAY. To patch icecast to use tcp_cork is a piece of cake, it involves no more than 10 lines of code. My question would be if the maintainers would consider bringing...

...re the user would know ;). This is very system-specific issue just because the Linux network stack behaves so differently from other OSes (for purely historical reasons). That makes it hard to abstract as a "feature" for the R sockets that are supposed to be platform-independent. At least TCP_NODELAY is actually part of POSIX so it is on better footing, and disabling delayed ACK is practically only useful to work around the other side having Nagle on, so I would expect it to be rarely used. This is essentially RFC since we don't have a mechanism for socket options (well, almost, there is t...

On Fri, Mar 24, 2023 at 02:41:20PM -0500, Eric Blake wrote: > On Fri, Mar 24, 2023 at 11:47:20AM +0100, Florian Westphal wrote: > > qemu-nbd doesn't set TCP_NODELAY on the tcp socket. Replying to myself, WHY aren't we setting TCP_NODELAY on the socket? > > And surprisingly, qemu IS using corking on the client side: > https://gitlab.com/qemu-project/qemu/-/blob/master/block/nbd.c#L525 > just not on the server side, before your patch. Corking...

http://bugzilla.mindrot.org/show_bug.cgi?id=556 Summary: TCP_NODELAY not set completely for port forwarding Product: Portable OpenSSH Version: -current Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: sshd AssignedTo: openssh-unix-dev at mindrot...

I ran into the following problem the first time I used OpenSSH_3.6.1p2 on Solaris 8 (sparc, 32-bit): $ ssh kiwi Enter passphrase for RSA key '/net/sic/export/ford/home/eggert/.ssh/identity': getsockopt TCP_NODELAY: Socket operation on non-socket Last login: Sat May 10 14:27:01 2003 from ip-66-80-53-59.d Sun Microsystems Inc. SunOS 5.8 Generic Patch October 2001 You have new mail. The "getsockopt TCP_NODELAY: Socket operation on non-socket" message is bogus. This appears to be a...

smbclient is broken if TCP_NODELAY is enabled. I am running FreeBSD 2.2.7 Stable. 1. Enable socket options = TCP_NODELAY 2. Run smbclient to access a share on a Win95 box 3. Turn 'recurse' on 4. cd to a directory that contains one directory and no files 5. Do a dir 6. The files which live in the directory below the default...

In order to test my overlapping request path for sftp on another ssh server, I downloaded ssh2 version 3.1.0 from ssh.com. Having downloaded it, I decided to study the use of TCP_NODELAY in that implementation. Here's what I found: * Both ssh2 and sshd2 has a NoDelay config option which is false by default. * The ssh2 client does not enable or disable NoDelay because of a channel type (such as pty or X11). * The sftp2 client uses "-o NoDelay=yes" when starti...

On Mon, 2 Nov 2020 at 02:22, Simon Urbanek <simon.urbanek at r-project.org> wrote: > > It looks like R sockets on Linux could do with TCP_NODELAY -- without (status quo): How many network packets are generated with and without it? If there are many small writes and thus setting TCP_NODELAY causes many small packets to be sent, it might make more sense to set TCP_QUICKACK instead. I?aki > Unit: microseconds > expr...

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. The proprietary ssh seems to already have this option. Attached an LD_PRELOAD hack to set TCP_NODELAY. For...

...hristiopher Baus' excelent article: http://www.baus.net/on-tcp_cork -----Oorspronkelijk bericht----- Van: icecast-bounces@xiph.org [mailto:icecast-bounces@xiph.org]Namens Henri Zikken Verzonden: zondag 25 december 2005 15:05 Aan: icecast@xiph.org Onderwerp: [Icecast] Use of TCP_CORK instead of TCP_NODELAY We're abusing icecast in a true narrowcasting setup (personalized stream per mountpoint). The streams itself are created in a piece of proprietory (spelling?, i'm dutch) software, icecast merely relays them. However, the intended endpoint is an embedded device. This device has trouble wi...

...ad User default service = reference log file = /opt/samba-test/var/log.%m max log size = 10 debug level = 1 syslog = 0 share modes = yes message command = csh -c 'cat %s > /dev/console;rm %s' & socket options = TCP_NODELAY dead time = 5 sync always = 1 config file = /opt/samba-test/lib/smb.conf.%m oplocks = yes fake oplocks = no read raw = yes write raw = yes read prediction = yes getwd cache = yes time server = yes /opt/samba-eng/lib/smb.conf with only diff...

http://bugzilla.mindrot.org/show_bug.cgi?id=556 ------- Additional Comments From markus at openbsd.org 2003-08-27 02:56 ------- sshd already sets nodelay for the connection, but conditionally, and only for interactive sessions, so this is the well known problem: why does sshd traditionally set no delay only for interactive sessions. ------- You are receiving this mail because: -------