XyMon 4.3.12 - what about HTTPS problems reported for 4.3.11 ?
Problem is for some sites with valid certificates too. I had checked to access page with wget or lynx - and it is working. So I do not see reason why Xymon should get "Server Timeout" for the same target.
Here is the debug of wget. Please, advice how to diagnose/debug Xymon to find the solution. I am a bit confused why nobody reporting the same problem:
- nobody using new openssl libraries?
- nobody do https tests for some, may a bot non-standard SSL certificates or web-sites?
Anyway, my opinion - if this is working for all other tools like lynx, wget, browsers, this could also work in Xymon.
Test case: both URL get Server Timeout in Xymon, but working with wget:
URL1: https://epak.pmlp.gov.lv/ (here is redirect - I had found Xymon may have trouble with redirects over https) URL2: https://epak.pmlp.gov.lv/NYX.Nyx002.WebSite/Default.aspx (no redirects here, certificate valid, but XyMon can not access it)
========= URL1: =========== [xymon at myhost~]$ wget --debug https://epak.pmlp.gov.lv/ DEBUG output created by Wget 1.12 on linux-gnu.
--2013-10-23 13:02:52-- https://epak.pmlp.gov.lv/ Resolving epak.pmlp.gov.lv... 195.234.144.230 Caching epak.pmlp.gov.lv => 195.234.144.230 Connecting to epak.pmlp.gov.lv|195.234.144.230|:443... connected. Created socket 3. Releasing 0x0000000001606440 (new refcount 1). Initiating SSL handshake. Handshake successful; connected socket 3 to SSL handle 0x0000000001607570 certificate: subject: /C=LV/ST=Riga/L=Riga/O=Office of Citizenship and Migration Affairs/OU=Department of Population Register/CN=*.pmlp.gov.lv issuer: /C=US/O=Thawte, Inc./CN=Thawte SSL CA X509 certificate successfully verified and matches host epak.pmlp.gov.lv
---request begin--- GET / HTTP/1.0 User-Agent: Wget/1.12 (linux-gnu) Accept: */* Host: epak.pmlp.gov.lv Connection: Keep-Alive
---request end--- HTTP request sent, awaiting response... ---response begin--- HTTP/1.1 301 Moved Permanently Content-Length: 179 Content-Type: text/html Location: https://epak.pmlp.gov.lv/NYX.Nyx001.WebSite/Default.aspx Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Date: Wed, 23 Oct 2013 10:02:45 GMT Connection: keep-alive
---response end---
301 Moved Permanently
Registered socket 3 for persistent reuse.
Location: https://epak.pmlp.gov.lv/NYX.Nyx001.WebSite/Default.aspx
[following]
Skipping 179 bytes of body: [<head><title>Document Moved</title></head>
<body><h1>Object Moved</h1>This document may be found <a HREF="
https://epak.pmlp.gov.lv/NYX.Nyx001.WebSite/Default.aspx">here</a></body>]
done.
--2013-10-23 13:02:52--
https://epak.pmlp.gov.lv/NYX.Nyx001.WebSite/Default.aspx
Reusing existing connection to epak.pmlp.gov.lv:443.
Reusing fd 3.
---request begin--- GET /NYX.Nyx001.WebSite/Default.aspx HTTP/1.0 User-Agent: Wget/1.12 (linux-gnu) Accept: */* Host: epak.pmlp.gov.lv Connection: Keep-Alive
---request end--- HTTP request sent, awaiting response... ---response begin--- HTTP/1.1 200 OK Connection: keep-alive Date: Wed, 23 Oct 2013 10:02:45 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET X-AspNet-Version: 2.0.50727 Set-Cookie: ASP.NET_SessionId=xpwkktquphtyv02va2ms1ejv; path=/; HttpOnly Cache-Control: no-cache Pragma: no-cache Expires: -1 Content-Type: text/html; charset=utf-8 Content-Length: 7365
---response end--- 200 OK
Stored cookie epak.pmlp.gov.lv -1 (ANY) / <session> <insecure> [expiry none] ASP.NET_SessionId xpwkktquphtyv02va2ms1ejv Length: 7365 (7.2K) [text/html] Saving to: `Default.aspx.2'
100%[====================================================================================================================>] 7,365 --.-K/s in 0s 2013-10-23 13:02:52 (832 MB/s) - `Default.aspx.2' saved [7365/7365]
========= URL2 =========================
[xymon at myhost~]$ wget --debug https://epak.pmlp.gov.lv/NYX.Nyx002.WebSite/Default.aspx DEBUG output created by Wget 1.12 on linux-gnu.
--2013-10-23 13:03:58--
https://epak.pmlp.gov.lv/NYX.Nyx002.WebSite/Default.aspx
Resolving epak.pmlp.gov.lv... 195.234.144.230
Caching epak.pmlp.gov.lv => 195.234.144.230
Connecting to epak.pmlp.gov.lv|195.234.144.230|:443... connected.
Created socket 3.
Releasing 0x00000000013ae4d0 (new refcount 1).
Initiating SSL handshake.
Handshake successful; connected socket 3 to SSL handle 0x00000000013af620
certificate:
subject: /C=LV/ST=Riga/L=Riga/O=Office of Citizenship and Migration
Affairs/OU=Department of Population Register/CN=*.pmlp.gov.lv
issuer: /C=US/O=Thawte, Inc./CN=Thawte SSL CA
X509 certificate successfully verified and matches host epak.pmlp.gov.lv
---request begin--- GET /NYX.Nyx002.WebSite/Default.aspx HTTP/1.0 User-Agent: Wget/1.12 (linux-gnu) Accept: */* Host: epak.pmlp.gov.lv Connection: Keep-Alive
---request end--- HTTP request sent, awaiting response... ---response begin--- HTTP/1.1 200 OK Connection: keep-alive Date: Wed, 23 Oct 2013 10:03:51 GMT Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET X-AspNet-Version: 2.0.50727 Set-Cookie: ASP.NET_SessionId=pecngh45oqe2sk45vhthua55; path=/; HttpOnly Cache-Control: no-cache Pragma: no-cache Expires: -1 Content-Type: text/html; charset=utf-8 Content-Length: 8619
---response end--- 200 OK
Stored cookie epak.pmlp.gov.lv -1 (ANY) / <session> <insecure> [expiry none] ASP.NET_SessionId pecngh45oqe2sk45vhthua55 Registered socket 3 for persistent reuse. Length: 8619 (8.4K) [text/html] Saving to: `Default.aspx.3'
100%[====================================================================================================================>] 8,619 --.-K/s in 0s
2013-10-23 13:03:58 (1007 MB/s) - `Default.aspx.3' saved [8619/8619]
this is output from: User-Agent: Wget/1.12 (linux-gnu) output from host with older ssl and wget is the same (except User-Agent: Wget/1.11.4 Red Hat modified)
From: Andrey Chervonets/Cominder/LV To: henrik at hswn.dk, Cc: xymon at xymon.com Date: 31.07.2013 18:15 Subject: Re: XyMon 4.3.12 - what about HTTPS problems repoirted for 4.3.11 ?
Yes, there may be some specific or expired certificate, but workaround not working anyway,
Tested, using http3 does not help for CentOS and OpenSUSE 12.3
tested with URL: https://epak.pmlp.gov.lv/NYX.Nyx002.WebSite/Default.aspx and some others.
Best regards,
Andrey Chervonets
SIA CoMinder http://www.cominder.eu/
From: henrik at hswn.dk To: Andrey Chervonets <a.chervonets at cominder.eu>, Cc: <xymon at xymon.com> Date: 25.07.2013 13:07 Subject: Re: XyMon 4.3.12 - what about HTTPS problems repoirted for 4.3.11 ?
Hi,
all indications are that this is an OpenSSL library problem (present in OpenSSL 1.x, but not in the older 0.9.x versions).
Debian has this bug report: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702635
SuSE has this: http://lists.opensuse.org/opensuse-bugs/2013-05/msg01048.html
It appears that the problem only shows up when testing sites with specific SSL implementations; e.g. I've seen it when connecting to some IIS versions.
Apparently, a work-around is to force the use of SSLv3 instead of TLSv1; you can do that by changing the URL in hosts.cfg so it has "https3" instead of just "https".
Regards, Henrik
Den 25.07.2013 07:54, Andrey Chervonets skrev:
Good day!
I still not received any reply for my previous messages about https tests problems in 4.3.11 or due openssl-1.0.nnnn. Does 4.3.12 have fixes for that?
Or what should be the steps to find root cause and fix? Just tell me in which direction should I go, I am not going to tale much of Your time.
P.S. Really, I am surprised nobody else reported similar problems. I fill I have done something wrong. :(
On 23 October 2013 21:16, Andrey Chervonets <A.Chervonets at cominder.eu>wrote:
Problem is for some sites with valid certificates too. I had checked to access page with wget or lynx - and it is working. So I do not see reason why Xymon should get "Server Timeout" for the same target.
Here is the debug of wget. Please, advice how to diagnose/debug Xymon to find the solution. I am a bit confused why nobody reporting the same problem:
- nobody using new openssl libraries?
- nobody do https tests for some, may a bot non-standard SSL certificates or web-sites?
You might just be unlucky. If half of all websites have implementations that trigger the problem, and if half of all Xymon installations have the buggy openssl library, then only 25% of people will get the problem. Given that not all Xymon users test https websites, and of those, not all of them are subscribed to The List, the odds drop off very quickly. Oh, and my first guesses of half websites and half of openssl installs used for Xymon is almost certainly very high. The proportions might be closer to 10%. So the odds are against you finding someone else on The List with the same symptoms.
Try the following:
ldd which wget | egrep "ssl|crypto"
ldd ~xymon/server/bin/xymonnet | egrep "ssl|crypto"
ldd which openssl | egrep "ssl|crypto"
If the libraries used by the two tools are different, then you should not be surprised to get different behaviour.
Try configuring a known good website on the Internet in your https monitoring. I'm guessing that https://www.xymon.org/ would be OK.
Try to connect to the websites using openssl:
openssl s_client -connect epak.pmlp.gov.lv:443
If that times out, it might show a message to indicate why.
J
It looks like xymonnet does not use ssl
ldd which wget | egrep "ssl|crypto" ; echo $?
libssl.so.10 => /usr/lib64/libssl.so.10 (0x00007f5a5b183000)
libcrypto.so.10 => /usr/lib64/libcrypto.so.10 (0x00007f5a5ade9000)
libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f5a59ad7000)
0
ldd product/xymon/server/bin/xymonnet | egrep "ssl|crypto" ; echo $? 1
ldd product/xymon/server/bin/xymonnet linux-vdso.so.1 => (0x00007fff67ffe000) librt.so.1 => /lib64/librt.so.1 (0x00007f7a15b07000) libpcre.so.0 => /lib64/libpcre.so.0 (0x00007f7a158db000) libc.so.6 => /lib64/libc.so.6 (0x00007f7a15547000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f7a1532a000) /lib64/ld-linux-x86-64.so.2 (0x00007f7a15d18000)
ldd which openssl | egrep "ssl|crypto"
libssl.so.10 => /usr/lib64/libssl.so.10 (0x00007f8fa7ce4000)
libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f8fa7389000)
libcrypto.so.10 => /usr/lib64/libcrypto.so.10 (0x00007f8fa6fee000)
As I had wrote some time ago - I am sure I had repied Yes to use SSL during xymon installation. And I had reinstalled again on other machine to double check, but with the same result.
So, it looks like problem is with installation process. Here is "ssl" grepped from make log. May be this will help:
[xymon at miminob xymon-4.3.11]$ grep -i ssl xymon_make.log
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" OSDEF="-DLINUX" RPATHOPT="-Wl,--rpath," PCREINCDIR=""
ZLIBINCDIR="" SSLFLAGS="" SSLINCDIR="" SSLLIBS="" NETLIBS=""
LIBRTDEF="-lrt" XYMONTOPDIR="/u01/app/xymon/product/xymon4.3.11"
XYMONLOGDIR="/u01/app/xymon/logs/xymon4.3.11"
XYMONHOSTNAME="miminob.cominder.eu"
XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" XYMONHOSTOS="linux" make -C lib
all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLFLAGS="" SSLINCDIR="" SSLLIBS=""
NETLIBS="" ZLIBLIBS="" LIBRTDEF="-lrt"
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" make -C common all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLFLAGS="" SSLINCDIR="" SSLLIBS=""
NETLIBS="" LIBRTDEF="-lrt"
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server"
XYMONVAR="/u01/app/xymon/product/xymon4.3.11/data" HISTGRAPHDEF=""
RUNTIMEDEFS="" PCREINCDIR="" PCRELIBS="-lpcre" ZLIBINCDIR="" ZLIBLIBS=""
make -C xymongen all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLFLAGS="" SSLINCDIR="" SSLLIBS=""
DOLDAP="" LDAPFLAGS="" LDAPINCDIR="" LDAPLIBS="" DOSNMP="no" NETLIBS=""
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" ARESVER="1.7.3"
FPINGVER="3.0" RUNTIMEDEFS="" PCREINCDIR="" PCRELIBS="-lpcre"
SQLITELIBS="" ZLIBINCDIR="" ZLIBLIBS="" LIBRTDEF="-lrt" make -C xymonnet
all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLLIBS="" NETLIBS="" LIBRTDEF="-lrt"
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" make -C xymonproxy
all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLLIBS="" NETLIBS="" LIBRTDEF="-lrt"
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" make -C build all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" RPATHOPT="-Wl,--rpath," DORRD="yes" RRDDEF="-DRRDTOOL12"
RRDINCDIR="" PCREINCDIR="" SSLFLAGS="" SSLLIBS="" NETLIBS=""
RRDLIBS="-lrrd " PCRELIBS="-lpcre" SQLITELIBS="" ZLIBINCDIR="" ZLIBLIBS=""
LIBRTDEF="-lrt" XYMONTOPDIR="/u01/app/xymon/product/xymon4.3.11"
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server"
XYMONVAR="/u01/app/xymon/product/xymon4.3.11/data"
XYMONLOGDIR="/u01/app/xymon/logs/xymon4.3.11"
XYMONHOSTNAME="miminob.cominder.eu"
XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" XYMONHOSTOS="linux"
XYMONUSER="xymon" CGIDIR="/u01/app/xymon/product/xymon4.3.11/cgi-bin"
SECURECGIDIR="/u01/app/xymon/product/xymon4.3.11/cgi-secure"
XYMONHOSTURL="/xymon" XYMONCGIURL="/xymon-cgi"
SECUREXYMONCGIURL="/xymon-seccgi" MAILPROGRAM=""mail"" RUNTIMEDEFS=""
INSTALLWWWDIR="/u01/app/xymon/product/xymon4.3.11/server/www"
INSTALLETCDIR="/u01/app/xymon/product/xymon4.3.11/server/etc"
FPING="xymonping" make -C xymond all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" RPATHOPT="-Wl,--rpath," DORRD="yes" RRDDEF="-DRRDTOOL12"
RRDINCDIR="" PCREINCDIR="" ZLIBINCDIR="" ZLIBLIBS="" SSLLIBS="" NETLIBS=""
RRDLIBS="-lrrd " PCRELIBS="-lpcre" LIBRTDEF="-lrt"
XYMONTOPDIR="/u01/app/xymon/product/xymon4.3.11"
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server"
XYMONVAR="/u01/app/xymon/product/xymon4.3.11/data"
XYMONLOGDIR="/u01/app/xymon/logs/xymon4.3.11"
XYMONHOSTNAME="miminob.cominder.eu"
XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" XYMONHOSTOS="linux"
XYMONUSER="xymon" CGIDIR="/u01/app/xymon/product/xymon4.3.11/cgi-bin"
SECURECGIDIR="/u01/app/xymon/product/xymon4.3.11/cgi-secure"
XYMONHOSTURL="/xymon" XYMONCGIURL="/xymon-cgi"
SECUREXYMONCGIURL="/xymon-seccgi" MAILPROGRAM=""mail"" RUNTIMEDEFS=""
INSTALLWWWDIR="/u01/app/xymon/product/xymon4.3.11/server/www"
INSTALLETCDIR="/u01/app/xymon/product/xymon4.3.11/server/etc" make -C web
all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" OSDEF="-DLINUX" RPATHOPT="-Wl,--rpath," PCREINCDIR=""
ZLIBINCDIR="" SSLFLAGS="" SSLINCDIR="" SSLLIBS="" NETLIBS=""
LIBRTDEF="-lrt" XYMONTOPDIR="/u01/app/xymon/product/xymon4.3.11"
XYMONLOGDIR="/u01/app/xymon/logs/xymon4.3.11"
XYMONHOSTNAME="miminob.cominder.eu"
XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" XYMONHOSTOS="linux"
LOCALCLIENT="" make -C lib client
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLFLAGS="" SSLINCDIR="" SSLLIBS=""
NETLIBS="" ZLIBLIBS="" LIBRTDEF="-lrt"
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" make -C common
client
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include "
XYMONHOME="/u01/app/xymon/product/xymon4.3.11/client"
XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" LOCALCLIENT="" SSLLIBS=""
NETLIBS="" LIBRTDEF="-lrt" make -C client all
Note: I had replaced in e-mail real server IP with ==XYMON_HOST_IP_REPLACED==.
Best regards,
Andrey Chervonets
SIA CoMinder http://www.cominder.eu/ mobile: +371 26517848
From: Jeremy Laidman <jlaidman at rebel-it.com.au> To: Andrey Chervonets <A.Chervonets at cominder.eu>, Cc: Henrik Størner <henrik at hswn.dk>, "xymon at xymon.com" <xymon at xymon.com> Date: 25.10.2013 02:45 Subject: Re: [Xymon] XyMon 4.3.12 - what about HTTPS problems reported for 4.3.11 ?
On 23 October 2013 21:16, Andrey Chervonets <A.Chervonets at cominder.eu> wrote: Problem is for some sites with valid certificates too. I had checked to access page with wget or lynx - and it is working. So I do not see reason why Xymon should get "Server Timeout" for the same target.
Here is the debug of wget. Please, advice how to diagnose/debug Xymon to find the solution. I am a bit confused why nobody reporting the same problem:
- nobody using new openssl libraries?
- nobody do https tests for some, may a bot non-standard SSL certificates or web-sites?
You might just be unlucky. If half of all websites have implementations that trigger the problem, and if half of all Xymon installations have the buggy openssl library, then only 25% of people will get the problem. Given that not all Xymon users test https websites, and of those, not all of them are subscribed to The List, the odds drop off very quickly. Oh, and my first guesses of half websites and half of openssl installs used for Xymon is almost certainly very high. The proportions might be closer to 10%. So the odds are against you finding someone else on The List with the same symptoms.
Try the following:
ldd which wget | egrep "ssl|crypto"
ldd ~xymon/server/bin/xymonnet | egrep "ssl|crypto"
ldd which openssl | egrep "ssl|crypto"
If the libraries used by the two tools are different, then you should not be surprised to get different behaviour.
Try configuring a known good website on the Internet in your https monitoring. I'm guessing that https://www.xymon.org/ would be OK.
Try to connect to the websites using openssl:
openssl s_client -connect epak.pmlp.gov.lv:443
If that times out, it might show a message to indicate why.
J
You should see info about SSL by running xymonnet --version (for example):
[server/opt/xymon-4.3.12/server/bin] ./xymonnet --version xymonnet version 4.3.12 SSL library : OpenSSL 0.9.7d 17 Mar 2004 (+ security fixes for: CVE-2005-2969 CVE-2006-2937 CVE-2006-2940 CVE-2006-3738 CVE-2006-4339 CVE-2006-4343 CVE-2006-7250 CVE-2007-5135 CVE-2007-3108 CVE-2008-5077 CVE-2008-7270 CVE-2009-0590 CVE-2009-2409 CVE-2009-3555 CVE-2010-4180 CVE-2011-4576 CVE-2011-4619 CVE-2012-0884 CVE-2012-1165 CVE-2012-2110 CVE-2012-2131 CVE-2012-2333 CVE-2013-0166 CVE-2013-0169) LDAP library: OpenLDAP 20428
-- ____ *Note: UMDNJ is now Rutgers-Biomedical and Health Sciences* || \\UTGERS |---------------------*O*--------------------- ||_// Biomedical | Ryan Novosielski - Sr. Systems Programmer || \\ and Health | novosirj at rutgers.edu - 973/972.0922 (2x0922) || \\ Sciences | OIT/EI-Academic Svcs. - ADMC 450, Newark `'
From: Xymon [xymon-bounces at xymon.com] On Behalf Of Andrey Chervonets [A.Chervonets at cominder.eu] Sent: Friday, October 25, 2013 4:52 AM To: Jeremy Laidman Cc: xymon at xymon.com Subject: Re: [Xymon] XyMon 4.3.12 - what about HTTPS problems reported for 4.3.11 ?
It looks like xymonnet does not use ssl
ldd which wget | egrep "ssl|crypto" ; echo $?
libssl.so.10 => /usr/lib64/libssl.so.10 (0x00007f5a5b183000)
libcrypto.so.10 => /usr/lib64/libcrypto.so.10 (0x00007f5a5ade9000)
libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f5a59ad7000)
0
ldd product/xymon/server/bin/xymonnet | egrep "ssl|crypto" ; echo $? 1
ldd product/xymon/server/bin/xymonnet linux-vdso.so.1 => (0x00007fff67ffe000) librt.so.1 => /lib64/librt.so.1 (0x00007f7a15b07000) libpcre.so.0 => /lib64/libpcre.so.0 (0x00007f7a158db000) libc.so.6 => /lib64/libc.so.6 (0x00007f7a15547000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f7a1532a000) /lib64/ld-linux-x86-64.so.2 (0x00007f7a15d18000)
ldd which openssl | egrep "ssl|crypto"
libssl.so.10 => /usr/lib64/libssl.so.10 (0x00007f8fa7ce4000)
libk5crypto.so.3 => /lib64/libk5crypto.so.3 (0x00007f8fa7389000)
libcrypto.so.10 => /usr/lib64/libcrypto.so.10 (0x00007f8fa6fee000)
As I had wrote some time ago - I am sure I had repied Yes to use SSL during xymon installation. And I had reinstalled again on other machine to double check, but with the same result.
So, it looks like problem is with installation process. Here is "ssl" grepped from make log. May be this will help:
[xymon at miminob xymon-4.3.11]$ grep -i ssl xymon_make.log
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" OSDEF="-DLINUX" RPATHOPT="-Wl,--rpath," PCREINCDIR="" ZLIBINCDIR="" SSLFLAGS="" SSLINCDIR="" SSLLIBS="" NETLIBS="" LIBRTDEF="-lrt" XYMONTOPDIR="/u01/app/xymon/product/xymon4.3.11" XYMONLOGDIR="/u01/app/xymon/logs/xymon4.3.11" XYMONHOSTNAME="miminob.cominder.eu" XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" XYMONHOSTOS="linux" make -C lib all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLFLAGS="" SSLINCDIR="" SSLLIBS="" NETLIBS="" ZLIBLIBS="" LIBRTDEF="-lrt" XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" make -C common all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLFLAGS="" SSLINCDIR="" SSLLIBS="" NETLIBS="" LIBRTDEF="-lrt" XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" XYMONVAR="/u01/app/xymon/product/xymon4.3.11/data" HISTGRAPHDEF="" RUNTIMEDEFS="" PCREINCDIR="" PCRELIBS="-lpcre" ZLIBINCDIR="" ZLIBLIBS="" make -C xymongen all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLFLAGS="" SSLINCDIR="" SSLLIBS="" DOLDAP="" LDAPFLAGS="" LDAPINCDIR="" LDAPLIBS="" DOSNMP="no" NETLIBS="" XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" ARESVER="1.7.3" FPINGVER="3.0" RUNTIMEDEFS="" PCREINCDIR="" PCRELIBS="-lpcre" SQLITELIBS="" ZLIBINCDIR="" ZLIBLIBS="" LIBRTDEF="-lrt" make -C xymonnet all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLLIBS="" NETLIBS="" LIBRTDEF="-lrt" XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" make -C xymonproxy all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLLIBS="" NETLIBS="" LIBRTDEF="-lrt" XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" make -C build all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" RPATHOPT="-Wl,--rpath," DORRD="yes" RRDDEF="-DRRDTOOL12" RRDINCDIR="" PCREINCDIR="" SSLFLAGS="" SSLLIBS="" NETLIBS="" RRDLIBS="-lrrd " PCRELIBS="-lpcre" SQLITELIBS="" ZLIBINCDIR="" ZLIBLIBS="" LIBRTDEF="-lrt" XYMONTOPDIR="/u01/app/xymon/product/xymon4.3.11" XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" XYMONVAR="/u01/app/xymon/product/xymon4.3.11/data" XYMONLOGDIR="/u01/app/xymon/logs/xymon4.3.11" XYMONHOSTNAME="miminob.cominder.eu" XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" XYMONHOSTOS="linux" XYMONUSER="xymon" CGIDIR="/u01/app/xymon/product/xymon4.3.11/cgi-bin" SECURECGIDIR="/u01/app/xymon/product/xymon4.3.11/cgi-secure" XYMONHOSTURL="/xymon" XYMONCGIURL="/xymon-cgi" SECUREXYMONCGIURL="/xymon-seccgi" MAILPROGRAM=""mail"" RUNTIMEDEFS="" INSTALLWWWDIR="/u01/app/xymon/product/xymon4.3.11/server/www" INSTALLETCDIR="/u01/app/xymon/product/xymon4.3.11/server/etc" FPING="xymonping" make -C xymond all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" RPATHOPT="-Wl,--rpath," DORRD="yes" RRDDEF="-DRRDTOOL12" RRDINCDIR="" PCREINCDIR="" ZLIBINCDIR="" ZLIBLIBS="" SSLLIBS="" NETLIBS="" RRDLIBS="-lrrd " PCRELIBS="-lpcre" LIBRTDEF="-lrt" XYMONTOPDIR="/u01/app/xymon/product/xymon4.3.11" XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" XYMONVAR="/u01/app/xymon/product/xymon4.3.11/data" XYMONLOGDIR="/u01/app/xymon/logs/xymon4.3.11" XYMONHOSTNAME="miminob.cominder.eu" XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" XYMONHOSTOS="linux" XYMONUSER="xymon" CGIDIR="/u01/app/xymon/product/xymon4.3.11/cgi-bin" SECURECGIDIR="/u01/app/xymon/product/xymon4.3.11/cgi-secure" XYMONHOSTURL="/xymon" XYMONCGIURL="/xymon-cgi" SECUREXYMONCGIURL="/xymon-seccgi" MAILPROGRAM=""mail"" RUNTIMEDEFS="" INSTALLWWWDIR="/u01/app/xymon/product/xymon4.3.11/server/www" INSTALLETCDIR="/u01/app/xymon/product/xymon4.3.11/server/etc" make -C web all
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" OSDEF="-DLINUX" RPATHOPT="-Wl,--rpath," PCREINCDIR="" ZLIBINCDIR="" SSLFLAGS="" SSLINCDIR="" SSLLIBS="" NETLIBS="" LIBRTDEF="-lrt" XYMONTOPDIR="/u01/app/xymon/product/xymon4.3.11" XYMONLOGDIR="/u01/app/xymon/logs/xymon4.3.11" XYMONHOSTNAME="miminob.cominder.eu" XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" XYMONHOSTOS="linux" LOCALCLIENT="" make -C lib client
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " LDFLAGS="" RPATHOPT="-Wl,--rpath," SSLFLAGS="" SSLINCDIR="" SSLLIBS="" NETLIBS="" ZLIBLIBS="" LIBRTDEF="-lrt" XYMONHOME="/u01/app/xymon/product/xymon4.3.11/server" make -C common client
CC="gcc" CFLAGS="-g -O2 -Wall -Wno-unused -Wno-pointer-sign -D_REENTRANT -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DLINUX -Ipwd/include " XYMONHOME="/u01/app/xymon/product/xymon4.3.11/client" XYMONHOSTIP="==XYMON_HOST_IP_REPLACED==" LOCALCLIENT="" SSLLIBS="" NETLIBS="" LIBRTDEF="-lrt" make -C client all
Note: I had replaced in e-mail real server IP with ==XYMON_HOST_IP_REPLACED==.
Best regards,
Andrey Chervonets
SIA CoMinder http://www.cominder.eu/ mobile: +371 26517848
From: Jeremy Laidman <jlaidman at rebel-it.com.au> To: Andrey Chervonets <A.Chervonets at cominder.eu>, Cc: Henrik Størner <henrik at hswn.dk>, "xymon at xymon.com" <xymon at xymon.com> Date: 25.10.2013 02:45 Subject: Re: [Xymon] XyMon 4.3.12 - what about HTTPS problems reported for 4.3.11 ?
On 23 October 2013 21:16, Andrey Chervonets <A.Chervonets at cominder.eu<mailto:A.Chervonets at cominder.eu>> wrote: Problem is for some sites with valid certificates too. I had checked to access page with wget or lynx - and it is working. So I do not see reason why Xymon should get "Server Timeout" for the same target.
Here is the debug of wget. Please, advice how to diagnose/debug Xymon to find the solution. I am a bit confused why nobody reporting the same problem:
- nobody using new openssl libraries?
- nobody do https tests for some, may a bot non-standard SSL certificates or web-sites?
You might just be unlucky. If half of all websites have implementations that trigger the problem, and if half of all Xymon installations have the buggy openssl library, then only 25% of people will get the problem. Given that not all Xymon users test https websites, and of those, not all of them are subscribed to The List, the odds drop off very quickly. Oh, and my first guesses of half websites and half of openssl installs used for Xymon is almost certainly very high. The proportions might be closer to 10%. So the odds are against you finding someone else on The List with the same symptoms.
Try the following:
ldd which wget | egrep "ssl|crypto"
ldd ~xymon/server/bin/xymonnet | egrep "ssl|crypto"
ldd which openssl | egrep "ssl|crypto"
If the libraries used by the two tools are different, then you should not be surprised to get different behaviour.
Try configuring a known good website on the Internet in your https monitoring. I'm guessing that https://www.xymon.org/ would be OK.
Try to connect to the websites using openssl:
openssl s_client -connect epak.pmlp.gov.lv:443<http://epak.pmlp.gov.lv:443/>
If that times out, it might show a message to indicate why.
J
participants (3)
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A.Chervonets＠cominder.eu
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jlaidman＠rebel-it.com.au
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novosirj＠ca.rutgers.edu