linuxgeek: Re: [LINUX_Newbies] Apache issue[WAS How to learn Linux]

On Thu, Feb 25, 2016 at 4:19 PM, Michael Sullivan msulli1355@gmail.com
[LINUX_Newbies] <LINUX_Newbies@yahoogroups.com> wrote:
> On 02/25/2016 03:05 PM, J dreadpiratejeff@gmail.com [LINUX_Newbies] wrote:
>> On Thu, Feb 25, 2016 at 3:49 PM, Michael Sullivan msulli1355@gmail.com
>> [LINUX_Newbies] <LINUX_Newbies@yahoogroups.com> wrote:
>> > My current problem is with apache. It won't start. It will not tell me
>> > why it won't start.
>> >
>> > michael@camille ~ $ sudo /etc/init.d/apache2 start
>> > Password:
>> > * Starting apache2 ...
>> > * start-stop-daemon: failed to start `/usr/sbin/apache2'
>> > [ !! ]
>> > * ERROR: apache2 failed to start
>>
>> I don't know about Gentoo, but usually the start/stop messages will
>> show up in syslog:
>>
>> (note this is ubuntu)
>>
>> Feb 25 16:01:55 galactica systemd[1]: Stopping LSB: Apache2 web server...
>> Feb 25 16:01:55 galactica apache2[27048]: * Stopping web server apache2
>> Feb 25 16:01:56 galactica apache2[27048]: *
>> Feb 25 16:01:56 galactica systemd[1]: Stopped LSB: Apache2 web server.
>> Feb 25 16:01:56 galactica systemd[1]: Starting LSB: Apache2 web server...
>> Feb 25 16:01:56 galactica apache2[27074]: * Starting web server apache2
>> Feb 25 16:01:56 galactica apache2[27074]: AH00558: apache2: Could not
>> reliably determine the server's fully qualified domain name, using
>> 127.0.1.1. Set the 'ServerName' directive globally to suppress this
>> message
>> Feb 25 16:01:57 galactica apache2[27074]: *
>> Feb 25 16:01:57 galactica systemd[1]: Started LSB: Apache2 web server.
>>
>> > michael@camille ~ $ sudo /usr/sbin/apache2
>> > no listening sockets available, shutting down
>> > Unable to open logs
>>
>> So what are the permissions on /var/log/apache2?
>> (again, Ubuntu, so YMMV)
>> drwxr-x--- 2 root adm 4096 Feb 24 21:26 apache2
>>
>> bladernr@galactica:/var/log$ ll apache2/
>> total 204
>> -rw-r----- 1 root adm 200347 Feb 25 09:32 access.log
>> -rw-r----- 1 root adm 1493 Feb 25 16:01 error.log
>> -rw-r----- 1 root adm 0 Feb 24 21:26 other_vhosts_access.log
>
> camille apache2 # ls -l /var/log
> total 11448
> drwxr-x--- 2 apache apache 4096 Feb 25 14:44 apache2

but what about the contents of /var/log/apache2?

> And it would be greatly appreciated if you didn't flame me for using the
> root account to get this information. I am VERY VERY careful whenever I
> use the root account. It has its own tab in my terminal. I NEVER EVER
> use wildcards with rm using my root tab. If anything goes wrong (well,
> wronger than usual), I have backups of the /etc and michael home
> directories made every 24 hours of every file under said directories
> that's changed in the last 24 hours, as well as complete backups of /etc
> and /home/michael made the first of every month.

Use root, or use sudo. Makes no difference to me. My cloud instances
only have root (they come that way from Digital Ocean and I don't
bother fixing them) and most things have sudo (but still need root
from time to time due to file attributions). No one is flaming you
that I have seen, and this is NEWBIES, so you're less likely to get
flamed here.

More importantly, are you not seeing any messages in syslog from
Apache when you try to start it?

See above.

> I just did some more digging, and according to
> https://archives.gentoo.org/gentoo-user/message/f2fb5430aacaf14f7f16d27470cd3146
>
> this is not an apache problem at all, but a php problem. I issued those
> two ldd orders. I altered the syntax to where whose files would exist
> on my 32-bit system. I have no idea how to interpet the output. I'll
> paste it here:
>
> camille apache2 # ldd /usr/lib/apache2/modules/libphp5.so
> ldd: warning: you do not have execution permission for
> `/usr/lib/apache2/modules/libphp5.so'
> libc-client.so.1 => /usr/lib/libc-client.so.1 (0xb6bb2000)
> libcrypto.so.1.0.0 => /usr/lib/libcrypto.so.1.0.0 (0xb69e1000)
> libssl.so.1.0.0 => /usr/lib/libssl.so.1.0.0 (0xb696e000)
> libtidy-0.99.so.0 => /usr/lib/libtidy-0.99.so.0 (0xb6916000)
> libreadline.so.6 => /lib/libreadline.so.6 (0xb68d4000)
> libaspell.so.15 => /usr/lib/libaspell.so.15 (0xb6818000)
> libmcrypt.so.4 => /usr/lib/libmcrypt.so.4 (0xb67e5000)
> libdl.so.2 => /lib/libdl.so.2 (0xb67e0000)
> libonig.so.2 => /usr/lib/libonig.so.2 (0xb6793000)
> libldap-2.4.so.2 => /usr/lib/libldap-2.4.so.2 (0xb6749000)
> liblber-2.4.so.2 => /usr/lib/liblber-2.4.so.2 (0xb6739000)
> libresolv.so.2 => /lib/libresolv.so.2 (0xb6722000)
> libt1.so.5 => /usr/lib/libt1.so.5 (0xb66c5000)
> libm.so.6 => /lib/libm.so.6 (0xb667d000)
> libpng16.so.16 => /usr/lib/libpng16.so.16 (0xb6643000)
> libz.so.1 => /lib/libz.so.1 (0xb662a000)
> libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0xb65ca000)
> libgdbm.so.4 => /usr/lib/libgdbm.so.4 (0xb65bd000)
> libbz2.so.1 => /lib/libbz2.so.1 (0xb65ab000)
> libpcre.so.1 => /lib/libpcre.so.1 (0xb6536000)
> libxml2.so.2 => /usr/lib/libxml2.so.2 (0xb63d5000)
> libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0xb632b000)
> libnetsnmp.so.30 => /usr/lib/libnetsnmp.so.30 (0xb6255000)
> libc.so.6 => /lib/libc.so.6 (0xb60ad000)
> libpam.so.0 => /lib/libpam.so.0 (0xb609e000)
> libncurses.so.5 => /lib/libncurses.so.5 (0xb604f000)
> libstdc++.so.6 => /usr/lib/gcc/i686-pc-linux-gnu/4.9.3/libstdc++.so.6
> (0xb5f5a000)
> /lib/ld-linux.so.2 (0xb76f1000)
> libgnutls.so.28 => /usr/lib/libgnutls.so.28 (0xb5e3d000)
> libgcrypt.so.20 => /usr/lib/libgcrypt.so.20 (0xb5d93000)
> libpthread.so.0 => /lib/libpthread.so.0 (0xb5d77000)
> libgcc_s.so.1 => /usr/lib/gcc/i686-pc-linux-gnu/4.9.3/libgcc_s.so.1
> (0xb5d58000)
> libtasn1.so.6 => /usr/lib/libtasn1.so.6 (0xb5d44000)
> libnettle.so.6 => /usr/lib/libnettle.so.6 (0xb5d02000)
> libhogweed.so.4 => /usr/lib/libhogweed.so.4 (0xb5cce000)
> libgmp.so.10 => /usr/lib/libgmp.so.10 (0xb5c5a000)
> libgpg-error.so.0 => /usr/lib/libgpg-error.so.0 (0xb5c45000)
>
> camille apache2 # ldd /usr/lib/libcurl.so.4
> libssl.so.1.0.0 => /usr/lib/libssl.so.1.0.0 (0xb7636000)
> libcrypto.so.1.0.0 => /usr/lib/libcrypto.so.1.0.0 (0xb7465000)
> libldap-2.4.so.2 => /usr/lib/libldap-2.4.so.2 (0xb741c000)
> liblber-2.4.so.2 => /usr/lib/liblber-2.4.so.2 (0xb740c000)
> libresolv.so.2 => /lib/libresolv.so.2 (0xb73f4000)
> libgnutls.so.28 => /usr/lib/libgnutls.so.28 (0xb72d7000)
> libgcrypt.so.20 => /usr/lib/libgcrypt.so.20 (0xb722d000)
> libgpg-error.so.0 => /usr/lib/libgpg-error.so.0 (0xb7219000)
> libz.so.1 => /lib/libz.so.1 (0xb7201000)
> libpthread.so.0 => /lib/libpthread.so.0 (0xb71e4000)
> libc.so.6 => /lib/libc.so.6 (0xb703c000)
> libdl.so.2 => /lib/libdl.so.2 (0xb7037000)
> libtasn1.so.6 => /usr/lib/libtasn1.so.6 (0xb7023000)
> libnettle.so.6 => /usr/lib/libnettle.so.6 (0xb6fe1000)
> libhogweed.so.4 => /usr/lib/libhogweed.so.4 (0xb6fac000)
> libgmp.so.10 => /usr/lib/libgmp.so.10 (0xb6f38000)
> /lib/ld-linux.so.2 (0xb7739000)
>
> Also, I don't know if it matters, but my /etc/conf.d/apache2 file is:
>
> camille apache2 # cat /etc/conf.d/apache2
> # /etc/conf.d/apache2: config file for /etc/init.d/apache2
>
> # When you install a module it is easy to activate or deactivate the modules
> # and other features of apache using the APACHE2_OPTS line. Every module
> should
> # install a configuration in /etc/apache2/modules.d. In that file will
> have an
> # <IfDefine NNN> directive where NNN is the option to enable that module.
> #
> # Here are the options available in the default configuration:
> #
> # AUTH_DIGEST Enables mod_auth_digest
> # AUTHNZ_LDAP Enables authentication through mod_ldap (available if
> USE=ldap)
> # CACHE Enables mod_cache
> # DAV Enables mod_dav
> # ERRORDOCS Enables default error documents for many languages.
> # INFO Enables mod_info, a useful module for debugging
> # LANGUAGE Enables content-negotiation based on language and charset.
> # LDAP Enables mod_ldap (available if USE=ldap)
> # MANUAL Enables /manual/ to be the apache manual (available if
> USE=docs)
> # MEM_CACHE Enables default configuration mod_mem_cache
> # PROXY Enables mod_proxy
> # SSL Enables SSL (available if USE=ssl)
> # STATUS Enabled mod_status, a useful module for statistics
> # SUEXEC Enables running CGI scripts (in USERDIR) through suexec.
> # USERDIR Enables /~username mapping to /home/username/public_html
> #
> #
> # The following two options provide the default virtual host for the
> HTTP and
> # HTTPS protocol. YOU NEED TO ENABLE AT LEAST ONE OF THEM, otherwise apache
> # will not listen for incomming connections on the approriate port.
> #
> # DEFAULT_VHOST Enables name-based virtual hosts, with the default
> # virtual host being in /var/www/localhost/htdocs
> # SSL_DEFAULT_VHOST Enables default vhost for SSL (you should enable this
> # when you enable SSL)
> #
> APACHE2_OPTS="-D DEFAULT_VHOST -D INFO -D SSL -D SSL_DEFAULT_VHOST -D
> LANGUAGE -D PERL -D PHP5.6"
>
> # Extended options for advanced uses of Apache ONLY
> # You don't need to edit these unless you are doing crazy Apache stuff
> # As not having them set correctly, or feeding in an incorrect configuration
> # via them will result in Apache failing to start
> # YOU HAVE BEEN WARNED.
>
> # PID file
> #PIDFILE=/var/run/apache2.pid
>
> # timeout for startup/shutdown checks
> #TIMEOUT=10
>
> # ServerRoot setting
> #SERVERROOT=/usr/lib/apache2
>
> # Configuration file location
> # - If this does NOT start with a '/', then it is treated relative to
> # $SERVERROOT by Apache
> #CONFIGFILE=/etc/apache2/httpd.conf
>
> # Location to log startup errors to
> # They are normally dumped to your terminal.
> #STARTUPERRORLOG="/var/log/apache2/startuperror.log"
>
> # A command that outputs a formatted text version of the HTML at the URL
> # of the command line. Designed for lynx, however other programs may work.
> #LYNX="lynx -dump"
>
> # The URL to your server's mod_status status page.
> # Required for status and fullstatus
> #STATUSURL="http://localhost/server-status"
>
> # Method to use when reloading the server
> # Valid options are 'restart' and 'graceful'
> # See http://httpd.apache.org/docs/2.2/stopping.html for information on
> # what they do and how they differ.
> #RELOAD_TYPE="graceful"
>
> It says -D PHP 5.6. I couldn't find a libphp5.6 file anywhere in the
> /usr/lib/modules/ directory, so I'm thinking that's not the issue, but I
> could be wrong. Did I mention that I know very little about this stuff?
> -Michael Sullivan-