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Stéphane Bortzmeyer bortzmeyer

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bortzmeyer / gist:747718
Created December 19, 2010 21:42
Testing if -lresolv is necessary or not
AC_CHECK_FUNC(res_mkquery, ,
[AC_CHECK_LIB(bind, res_mkquery, ,
[AC_CHECK_LIB(resolv, res_mkquery, ,
[ saved_LIBS="$LIBS"
LIBS="$LIBS -lresolv"
AC_MSG_CHECKING(for res_mkquery in -lresolv again)
AC_LINK_IFELSE([[
#include <resolv.h>
int main()
{
@bortzmeyer
bortzmeyer / gist:786246
Created January 19, 2011 14:41
No IPv6 from Gandi to Renater
% traceroute6 www.enst.fr
traceroute to vili.enst.fr (2001:660:330f:34::8) from 2001:4b98:dc0:41:216:3eff:fece:1902, 30 hops max, 16 byte packets
1 2001:4b98:dc0:41::248 (2001:4b98:dc0:41::248) 2.016 ms 0.513 ms 1.633 ms
2 p250-core1-d-ip6.paris.gandi.net (2001:4b98:1f::c1d1:237) 0.74 ms 0.588 ms 0.484 ms
3 p251-core2-d-ip6.paris.gandi.net (2001:4b98:1f::c1c2:246) 0.694 ms 0.604 ms 0.482 ms
4 20gigabitethernet1-3.core1.ams1.ipv6.he.net (2001:7f8:1::a500:6939:1) 18.014 ms 23.649 ms 25.547 ms
5 amsix.xcr1.amd.cw.net (2001:7f8:1::a500:1273:1) 62.511 ms 44.093 ms 44.057 ms
6 so-2-0-0-dcr1.bru.cw.net (2001:5000:0:128::2) 47.159 ms 47.088 ms 47.082 ms
7 xe-4-0-0-xcr2.bru.cw.net (2001:5000:0:16f::2) 46.899 ms 46.949 ms 47.001 ms
8 so-7-0-0-dcr1.par.cw.net (2001:5000:0:103::1) 49.572 ms 49.617 ms 49.557 ms
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bortzmeyer / openssl-piggybacking-test.patch
Created March 9, 2011 12:28
OpenSSL patch to test CVE-2011-0411 (TLS piggybacking) on IMAP servers
Done against OpenSSL 0.9.8g
--- apps/s_client.c.orig 2011-03-09 09:46:43.000000000 +0100
+++ apps/s_client.c 2011-03-09 10:20:04.000000000 +0100
@@ -924,7 +924,7 @@
BIO_printf(bio_err,
"didn't found STARTTLS in server response,"
" try anyway...\n");
- BIO_printf(sbio,". STARTTLS\r\n");
+ BIO_printf(sbio,". STARTTLS\r\n. NOOP\r\n");
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bortzmeyer / seenthis.sh
Created March 27, 2011 20:09
Unix shell client for the SeenThis API. Runs the editor then post the message.
#!/bin/bash
ENDPOINT=https://seenthis.net/api/messages
TEMPLATE="<?xml version='1.0' encoding='UTF-8'?><entry xmlns='http://www.w3.org/2005/Atom'><summary></summary></entry>"
DEST_ENCODING=UTF-8
# TODO: it would be better to find it from the environment
MY_ENCODING=ISO-8859-1
if [ "$1" != "" ]; then
echo "Usage: $0" >&2
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bortzmeyer / read-immediately.sh
Created March 29, 2011 09:13
Demonstrates how to test if there is data waiting on standard input (otherwise, we may wish to launch $EDITOR)
#!/bin/sh
# This script depends on the read builtin and its -t (timeout)
# option. It is not standard, we have to test it.
# http://www.cyberciti.biz/tips/how-do-i-find-out-what-shell-im-using.html
shell=$(ps hp $$|awk '{print $5}')
if [ $shell != "zsh" ] && [ $shell != "bash" ] && [ $shell != "ksh" ]; then
echo "Sorry, this script requires a shell with support of timeout in read. $shell is unknown to me." >&2
exit 1
@bortzmeyer
bortzmeyer / erreurs-indexel.txt
Created March 31, 2011 07:57
Erreurs relevées dans l'article IPv6 d'Indexel
L'article
<http://www.indexel.net/actualites/microsoft-rachete-667-000-adresses-ipv4-a-prix-d-or-3321.html>
comporte plusieurs erreurs sérieuses :
« Microsoft a déboursé 7,5 millions d'euros » alors qu'il s'agissait
de dollars états-uniens.
« IPv6 rendra certaines applications - téléphonie IP, peer-to-peer,
sites web - plus rapides. » C'est absolument n'importe quoi. IPv6 ne
comporte aucune méthode magique qui accélèrerait le réseau. C'est une
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bortzmeyer / gist:940738
Created April 25, 2011 16:19
Boot Gandi Debian lenny
Can't start Hardware abstraction layer - please ensure dbus is running failed!
mkdir: cannot create directory `/var/run/proftpd': No such file or directory
Starting ftp server: proftpd - notice: unable to bind to Unix domain socket at '/var/run/proftpd/test.sock': No such file or directory
- notice: unable to listen to local socket: Operation not permitted
- error: unable to stat() /var/log/proftpd: No such file or directory
- Fatal: SystemLog: unable to redirect logging to '/var/log/proftpd/proftpd.log': No such file or directory on line 90 of '/etc/proftpd/proftpd.conf'
failed!
Starting periodic command scheduler: crond/usr/sbin/cron: can't open or create /var/run/crond.pid: No such file or directory
failed!
Starting web server: apache2mkdir: cannot create directory `/var': File exists
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bortzmeyer / gist:982520
Created May 20, 2011 07:53
50 % packet loss on Level 3 transatlantic line
% date -u
Fri May 20 07:50:49 UTC 2011
% ifconfig eth1
eth1 Link encap:Ethernet HWaddr 00:1a:a0:ac:4a:0c
inet addr:192.134.6.69 Bcast:192.134.6.127 Mask:255.255.255.192
inet6 addr: fe80::21a:a0ff:feac:4a0c/64 Scope:Link
inet6 addr: 2001:67c:2219:8::6:69/64 Scope:Global
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bortzmeyer / gist:984852
Created May 21, 2011 20:09
L'Internet par Orange... Sur une connexion 3G
En visant depuis la France un serveur aux États-Unis (en IPv4 parce qu'Orange n'a toujours pas IPv6) :
% traceroute www.ietf.org
traceroute to www.ietf.org (64.170.98.30), 30 hops max, 60 byte packets
1 10.164.17.9 (10.164.17.9) 93.264 ms 93.327 ms 93.308 ms
2 10.164.17.10 (10.164.17.10) 93.405 ms 93.388 ms 93.461 ms
3 mail.ietf.org (64.170.98.30) 94.960 ms 95.170 ms *
4 mail.ietf.org (64.170.98.30) 97.398 ms 97.370 ms 104.741 ms
5 mail.ietf.org (64.170.98.30) 51.097 ms 59.308 ms 51.053 ms
6 * mail.ietf.org (64.170.98.30) 53.214 ms 60.512 ms
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bortzmeyer / gist:991946
Created May 25, 2011 20:53
Traceroutes IPv6 to 2001:4958:10::1
From Free :
% traceroute6 2001:4958:10::1
traceroute to 2001:4958:10::1 (2001:4958:10::1) from 2a01:e35:8bd9:8bb0:84d9:d84:92e7:3aae, port 33434, from port 54587, 30 hops max, 60 byte packets
1 2a01:e35:8bd9:8bb0::1 (2a01:e35:8bd9:8bb0::1) 6.481 ms 5.717 ms 6.406 ms
2 * * *
3 2a01:e00:2:d::1 (2a01:e00:2:d::1) 29.448 ms 27.561 ms 24.144 ms
4 if-ae15.548.tcore1.PVU-Paris.ipv6.as6453.net (2001:5a0:1a00::85) 39.973 ms 38.856 ms 37.975 ms
5 if-2-0-0.mcore3.MTT-Montreal.ipv6.as6453.net (2a01:3e0:ff80:100::12) 215.810 ms 146.196 ms 153.400 ms