Pasting via ssh causes data loss
libc.mail at gmail.com
Mon Dec 1 10:17:09 PST 2008
On 1 дек, 15:52, Mel <fbsd.questi... at rachie.is-a-geek.net> wrote:
> On Monday 01 December 2008 10:33:17 Eugene Pimenov wrote:
> $ grep telnet /etc/inetd.conf
> #telnet stream tcp nowait root /usr/libexec/telnetd telnetd
> #telnet stream tcp6 nowait root /usr/libexec/telnetd telnetd
> Quick setup:
> remove appropreate hashmark above
> /etc/rc.d/inetd onestart
It works :( All 6060 bytes are saved.
> > I tried ssh -vvv, nothing between connect and disconnect.
> > It's definitely not an EOF. It just loses some part of data, doesn't
> > stop receiving after some point.
> Where does it get lost? Meaning, does it get over the wire? Hard to check
> encrypted, but a 3k diff should show up in number of the IP packets sent. Is
> it possible to compare tcpdump linux <-> linux vs linux <-> freebsd on the
> receiving end?
I'm on Mac OS X, so tcpdumps:
I to freebsd http://pastie.org/327953.txt?key=zaehiz6bxcxs3rjuyfbtyq
freebsd to me http://pastie.org/327954.txt?key=autckpywar1mkngb9re0w
I to linux http://pastie.org/327955.txt?key=klqvsd73l3flhayoykeeq
linux to me http://pastie.org/327952.txt?key=uu1cpgleuhnctwcuqzxlw
However, I'm not sure it's helpful. I mean you can't look inside a
packet, because it was encrypted. Headers and packet size depends on
many factors. For example, if you compare linux and freebsd tcpdumps
here, you'll see that freebsd ignore packet's checksums and linux has
tcp timestamps turned off, and so on.
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