what's wrong with the openbsd-netcat?
Hi experts On my OS, I run kvm with below comand to do the migrate: it meet below error 1) #qemu-system-x86_64 --enable-kvm -smp 2 -m 512 -net nic,model=e1000 -net tap,script=/etc/qemu-ifup -hda /boot/guest_img.raw -kernel /boot/bzImage -append root=/dev/hda rw console=ttyS0,115200 ip=dhcp selinux=0 -nographic -incoming exec:nc -l 5200 it print: nc: Protocol not available load of migration failed 2)Then I copy the nc binary from redhat, then it works well can you please help me about this issue? Lei ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: what's wrong with the openbsd-netcat?
Forget to say, My netcat from http://code.google.com/p/openbsd-netcat/source/checkout On 12/31/12, lei yang yanglei.f...@gmail.com wrote: Hi experts On my OS, I run kvm with below comand to do the migrate: it meet below error 1) #qemu-system-x86_64 --enable-kvm -smp 2 -m 512 -net nic,model=e1000 -net tap,script=/etc/qemu-ifup -hda /boot/guest_img.raw -kernel /boot/bzImage -append root=/dev/hda rw console=ttyS0,115200 ip=dhcp selinux=0 -nographic -incoming exec:nc -l 5200 it print: nc: Protocol not available load of migration failed 2)Then I copy the nc binary from redhat, then it works well can you please help me about this issue? Lei ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: help about free bsp version netcat to work it on ubuntu
On Tue, Jul 24, 2012 at 12:47 AM, Polytropon free...@edvax.de wrote: On Mon, 23 Jul 2012 23:29:38 +0800, lei yang wrote: Yes, the second version I post is using the source from you supplied, then I compiled it, but it has no -U flag like what I post, it seems a version different casued this. Yes. The version distributed by the ports collection is different from that one supplied with the base system of FreeBSD. To try _that_ version, you can download the source tarball and extract it; in the directory # wget ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/9.0-RELEASE/src.txz # tar xvf src.txz Thanks for the help, tar xvf src.txz tar: This does not look like a tar archive tar: Skipping to next header tar: Archive contains obsolescent base-64 headers tar: Read 4896 bytes from src.txz tar: Error exit delayed from previous errors [lyang0@ala-lpggp2 lyang0]$ tar xvf src.txz tar: This does not look like a tar archive tar: Skipping to next header tar: Archive contains obsolescent base-64 headers tar: Read 4896 bytes from src.txz tar: Error exit delayed from previous errors # cd cusr/src/ontrib/netcat/ # ls FREEBSD-XlistFREEBSD-vendor atomicio.h netcat.c FREEBSD-upgrade atomicio.c nc.1 socks.c # your build command(s) here Suppose gcc -o netcat netcat.c atomicio.c socks.c should work Lei You can check the FTP server for other versions of the OS (e. g. different branch and architecture, starting at ftp://ftp.freebsd.org/pub/FreeBSD/releases/, then selecting architecture and finally the OS version). There are also different ways of obtaining the sources, but the solution shown here should be sufficient. (You can use tar xvf src.txz usr/src/contrib/netcat to only extract the files for netcat instead of everything, but it _might_ be possible that the build process needs some files from other locations.) If you don't have wget installed, stock ftp location command should also work for downloading. I don't know where to find the source code in Red Hat. Me neither, but check man hier on a RH system to get the documentation about the file system hierarchy which should have detailed information on what is stored where. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: help about free bsp version netcat to work it on ubuntu
On Mon, Jul 23, 2012 at 11:52 PM, Alejandro Imass a...@p2ee.org wrote: On Mon, Jul 23, 2012 at 11:29 AM, lei yang yanglei.f...@gmail.com wrote: On Mon, Jul 23, 2012 at 10:36 PM, Polytropon free...@edvax.de wrote: On Mon, 23 Jul 2012 12:59:55 +0800, lei yang wrote: On Mon, Jul 23, 2012 at 12:25 AM, Polytropon free...@edvax.de wrote: On Sun, 22 Jul 2012 22:41:57 +0800, lei yang wrote: Hi, [...] I don't know where to find the source code in Red Hat. Why don't you just toss RedHat and use FreeBSD ? Most everything you run on Linux will run on FreeBSD and there are also Desktop-friendly distros of FreeBSD such as PC-BSD which, in Linux terms, is to FreeBSD somewhat akin to what Ubuntu is to Debian. Aha,I just want to learn want to know how to build the netcat for freebsd version on a no-freebsd platform Lei Anyway, give PC-BSD a try and you won't regret it: http://www.pcbsd.org/ Cheers, -- Alejandro Imass ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: help about free bsp version netcat to work it on ubuntu
On Tue, Jul 24, 2012 at 12:03 AM, Carl Johnson ca...@peak.org wrote: lei yang yanglei.f...@gmail.com writes: On Mon, Jul 23, 2012 at 12:25 AM, Polytropon free...@edvax.de wrote: On Sun, 22 Jul 2012 22:41:57 +0800, lei yang wrote: Hi, I want to build a netcat on my local pc (ubuntu) with gcc, is it possible? I'm new to free bsd it has no -U flag, can you point me where I get this version Have you checked the other version of netcat already available? A quick check shows these four versions for Ubuntu: netcat: TCP/IP swiss army knife -- transitional package netcat-openbsd: TCP/IP swiss army knife netcat-traditional: TCP/IP swiss army knife netcat6: TCP/IP swiss army knife with IPv6 support how did you get the list? To be clear, haha, I just want to know how to build a fress bsd netcat on a no-fressbsd platform Lei -- Carl Johnsonca...@peak.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: help about free bsp version netcat to work it on ubuntu
On Mon, Jul 23, 2012 at 10:36 PM, Polytropon free...@edvax.de wrote: On Mon, 23 Jul 2012 12:59:55 +0800, lei yang wrote: On Mon, Jul 23, 2012 at 12:25 AM, Polytropon free...@edvax.de wrote: On Sun, 22 Jul 2012 22:41:57 +0800, lei yang wrote: Hi, I want to build a netcat on my local pc (ubuntu) with gcc, is it possible? I'm new to free bsd I hope I don't misunderstand your intention: You are trying to build a Linux executable of netcat from FreeBSD's sources? You _do_ know that FreeBSD and Linux (here: Ubuntu) are two totally different operating systems. I'm not sure code is compatible at this level (but it maybe _could_ be, you'd have to try it). The netcat program (nc) is part of the FreeBSD operating system for some time now. There's also a port of netcat in /usr/ports/net/netcat (which can also be used). That port's Makefile lists some sources: ftp://coast.cs.purdue.edu/pub/tools/unix/netutils/netcat/ ftp://ftp.cuhk.edu.hk/pub/packages/security/purdue/netutils/netcat/ http://www.planetmirror.com/pub/lprng/TOOLS/ You could try to use that source distribution as well. Thanks for the great help, I have built it successfully on my ubuntu. I find it's not the version I want I want use the version on Rehat,which has a -U flag( yes, I want to use this flag) but the above version has no this flag on redhat: usage: nc [-46DdhklnrStUuvzC] [-i interval] [-p source_port] [-s source_ip_address] [-T ToS] [-w timeout] [-X proxy_version] [-x proxy_address[:port]] [hostname] [port[s]] Command Summary: -4 Use IPv4 -6 Use IPv6 -D Enable the debug socket option -d Detach from stdin -h This help text -i secs Delay interval for lines sent, ports scanned -k Keep inbound sockets open for multiple connects -l Listen mode, for inbound connects -n Suppress name/port resolutions -p port Specify local port for remote connects -r Randomize remote ports -s addr Local source address -T ToS Set IP Type of Service -C Send CRLF as line-ending -t Answer TELNET negotiation -U Use UNIX domain socket -u UDP mode -v Verbose -w secs Timeout for connects and final net reads -X protoProxy protocol: 4, 5 (SOCKS) or connect -x addr[:port] Specify proxy address and port -z Zero-I/O mode [used for scanning] Port numbers can be individual or ranges: lo-hi [inclusive] -- with the above you list: lyang0@lyang0-OptiPlex-755:~/tmp/nc110$ ./nc -help [v1.10] connect to somewhere: nc [-options] hostname port[s] [ports] ... listen for inbound: nc -l -p port [-options] [hostname] [port] options: -g gateway source-routing hop point[s], up to 8 -G num source-routing pointer: 4, 8, 12, ... -h this cruft -i secs delay interval for lines sent, ports scanned -l listen mode, for inbound connects -n numeric-only IP addresses, no DNS -o file hex dump of traffic -p port local port number -r randomize local and remote ports -s addr local source address -u UDP mode -v verbose [use twice to be more verbose] -w secs timeout for connects and final net reads -z zero-I/O mode [used for scanning] port numbers can be individual or ranges: lo-hi [inclusive] it has no -U flag, can you point me where I get this version This indicates you did use the netcat version that also is in the FreeBSD Ports Collection. The netcat version that belongs to the FreeBSD system (the operating system itself) does seem to have the switch you need. From my home FreeBSD box (8.2-STABLE of August 2011, i386), THIS is the netcat help message: % nc -help usage: nc [-46DdEhklnrStUuvz] [-e policy] [-I length] [-i interval] [-O length] [-P proxy_username] [-p source_port] [-s source] [-T ToS] [-V rtable] [-w timeout] [-X proxy_protocol] [-x proxy_address[:port]] [destination] [port] Command Summary: -4 Use IPv4 -6 Use IPv6 -D
Re: help about free bsp version netcat to work it on ubuntu
On Mon, Jul 23, 2012 at 12:25 AM, Polytropon free...@edvax.de wrote: On Sun, 22 Jul 2012 22:41:57 +0800, lei yang wrote: Hi, I want to build a netcat on my local pc (ubuntu) with gcc, is it possible? I'm new to free bsd I hope I don't misunderstand your intention: You are trying to build a Linux executable of netcat from FreeBSD's sources? You _do_ know that FreeBSD and Linux (here: Ubuntu) are two totally different operating systems. I'm not sure code is compatible at this level (but it maybe _could_ be, you'd have to try it). The netcat program (nc) is part of the FreeBSD operating system for some time now. There's also a port of netcat in /usr/ports/net/netcat (which can also be used). That port's Makefile lists some sources: ftp://coast.cs.purdue.edu/pub/tools/unix/netutils/netcat/ ftp://ftp.cuhk.edu.hk/pub/packages/security/purdue/netutils/netcat/ http://www.planetmirror.com/pub/lprng/TOOLS/ You could try to use that source distribution as well. Thanks for the great help, I have built it successfully on my ubuntu. I find it's not the version I want I want use the version on Rehat,which has a -U flag( yes, I want to use this flag) but the above version has no this flag on redhat: usage: nc [-46DdhklnrStUuvzC] [-i interval] [-p source_port] [-s source_ip_address] [-T ToS] [-w timeout] [-X proxy_version] [-x proxy_address[:port]] [hostname] [port[s]] Command Summary: -4 Use IPv4 -6 Use IPv6 -D Enable the debug socket option -d Detach from stdin -h This help text -i secs Delay interval for lines sent, ports scanned -k Keep inbound sockets open for multiple connects -l Listen mode, for inbound connects -n Suppress name/port resolutions -p port Specify local port for remote connects -r Randomize remote ports -s addr Local source address -T ToS Set IP Type of Service -C Send CRLF as line-ending -t Answer TELNET negotiation -U Use UNIX domain socket -u UDP mode -v Verbose -w secs Timeout for connects and final net reads -X protoProxy protocol: 4, 5 (SOCKS) or connect -x addr[:port] Specify proxy address and port -z Zero-I/O mode [used for scanning] Port numbers can be individual or ranges: lo-hi [inclusive] -- with the above you list: lyang0@lyang0-OptiPlex-755:~/tmp/nc110$ ./nc -help [v1.10] connect to somewhere: nc [-options] hostname port[s] [ports] ... listen for inbound: nc -l -p port [-options] [hostname] [port] options: -g gateway source-routing hop point[s], up to 8 -G num source-routing pointer: 4, 8, 12, ... -h this cruft -i secs delay interval for lines sent, ports scanned -l listen mode, for inbound connects -n numeric-only IP addresses, no DNS -o file hex dump of traffic -p port local port number -r randomize local and remote ports -s addr local source address -u UDP mode -v verbose [use twice to be more verbose] -w secs timeout for connects and final net reads -z zero-I/O mode [used for scanning] port numbers can be individual or ranges: lo-hi [inclusive] it has no -U flag, can you point me where I get this version Lei I have to quesion: 1)where to download it's source it for netcat They can be found in /usr/src/contrib/netcat/ once you have extracted the source distribution of FreeBSD. Depending on which version of the OS (branch, revision, platform) you need, you have to select the corresponding archive from one of the download mirrors. Visit http://www.freebsd.org/ to find out where and how to obtain FreeBSD (or components of it). I would suggest using one of the FTP servers that are accessible for you at a good speed. 2)how to build it on ubuntu with gcc? only make? I'm not even sure Linux will be able to compile FreeBSD sources. A typical Linux build would consist of the three commands # ./configure # make # make install but FreeBSD's OS sources don't need the 1st step. The Makefiles distributed
