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  1. #1
    SitePoint Guru prequel's Avatar
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    SIGUSR1 received. Doing graceful restart?

    I just added some mod_rewrite directives to prevent hotlinking of my vbulletin forum's avatar and attachment file/dynamic urls.

    When i checked my /usr/local/apache/logs/error_log (whm/cpanel based server), i had 100s of entries for web sites trying to hot link my images

    now i found these entries in my error_log as well occuring every dozen or so lines
    [Mon Oct 15 12:37:59 2001] [notice] SIGUSR1 received. Doing graceful restart
    [Mon Oct 15 12:37:59 2001] [error] Cannot remove module mod_log_bytes.c: not found in module list
    [Mon Oct 15 12:38:00 2001] [notice] Apache/1.3.19 (Unix) mod_gzip/1.3.19.1a mod_bwlimited/0.8 PHP/4.0.5 mod_log_bytes/0.2 mod_frontpage/3.0.4.3 mod_ssl/2.8.1 OpenSSL/0.9.6 configured -- resuming normal operations

    [Mon Oct 15 12:43:34 2001] [error] [client 216.140.23.66] script not found or unable to stat: /home/username/public_html/cgi-bin/clickresponder.pl
    what's SIGUSR1 received? and why is apache restarting itself?

    Oh and i don't have any such script at home/username/public_html/cgi-bin/clickresponder.pl never did ... ever! so why is someone calling it?

    thanks

  2. #2
    Cat Herder
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    A couple of ideas come to mind...

    - If you're seeing the restart designation frequently, how many apache processes do you have when apache restarts itself? Are you getting a ton of requests for your vB images (maybe it's outstripping the number of MaxSpares you have defined in httpd.conf)?
    - If mod_log_bytes was compiled into apache, is the system trying to load it as a DSO? If so, check for a LoadModule line for that mod and comment it out then restart apache to see what you get.
    - Is 216.140.23.66 an IP assigned to an account on your server? If so, I'd ask the account holder to check their forms/pages for references to that nonexistent script.

    [Edit to that last, since I've taken a bit better look at it.]That IP is originating out of the Broadwing block - probably some joker trying to find a script to be used for some nefarious purpose (spammer? likely.) and just can't get a clue that it isn't there. I'd either do a redirect or just a LIMIT to deny that IP at a minimum.[/Edit]

    Just a few things off the top of my head. It's late. Or early, depending on your point of view.
    Last edited by Annette; Oct 21, 2001 at 01:34.
    Annette
    Hosting Matters, Inc.
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  3. #3
    SitePoint Guru prequel's Avatar
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    ah first relevant reply

    - i normally have 250 - 300 processes (running/sleeping total) before the restart and around 40 - 70 processes after the restart

    - mod_log_bytes was installed by cpanel/whm control panel my phpinfo lists these modules

    mod_gzip, mod_bwlimited, mod_php4, mod_log_bytes, mod_frontpage, mod_ssl, mod_setenvif, mod_so, mod_auth, mod_access, mod_rewrite, mod_alias, mod_userdir, mod_actions, mod_imap, mod_asis, mod_cgi, mod_dir, mod_autoindex, mod_include, mod_status, mod_negotiation, mod_mime, mod_log_config, mod_env, http_core
    and httpd.conf has
    #LoadModule rewrite_module libexec/mod_rewrite.so
    LoadModule bytes_log_module libexec/mod_log_bytes.so
    #LoadModule php4_module libexec/libphp4.so
    LoadModule bwlimited_module libexec/mod_bwlimited.so
    LoadModule gzip_module libexec/mod_gzip.so
    and further below
    AddModule mod_frontpage.c
    AddModule mod_log_bytes.c
    AddModule mod_php4.c
    AddModule mod_bwlimited.c
    AddModule mod_gzip.c
    - i don't host any other people, the server is only is for me. Someone traced the ip for me back to broadwing.net isp

    also i got this new error

    Sat Oct 20 23:39:36 2001] [notice] SIGUSR1 received. Doing graceful restart
    [Sat Oct 20 23:39:36 2001] [error] Cannot remove module mod_log_bytes.c: not found in module list
    httpd: module "mod_gzip.c" could not be loaded, because the dynamic
    module limit was reached. Please increase DYNAMIC_MODULE_LIMIT and recompile.
    ???

    i was planning to upgrade my kernel from 2.2.19 to 2.4.12 with http://webhostingtalk.com/showthread...threadid=23879 but not sure with this problem?

    thanks..


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