Bug 408825 – net-analyzer/ntop-4.1.0 No interface has been configured. Please configure ntop first.

• Product: Gentoo Linux
• Status: RESOLVED WORKSFORME

[Description Nicolas Laplante 2012-03-19 10:05:52 UTC]

After installing ntop-4.1.0, I fired the ntop service and pointed my browser to http://localohost:3000.

The error message I got was :

"No interface has been configured. Please configure ntop first."

So I edited /etc/conf.d/ntop to set the following NTOP_OPTS:

NTOP_OPTS="-u ntop -P /var/lib/ntop --interface eth0 -i eth0"

After restarting ntop, I got the same error again. I clicked on the "configure ntop first" link in the error message and entered the admin password.

On the next screen, the place where I could specify the interface, there was the following error message in red:

You cannot set the capture interface: missing privileges.
You need to start ntop with super-user privileges [-u]

So I went back to /etc/conf.d/ntop and changed "-u ntop" to "-u root" and restarted the service. Still, I got the same error message. Cannot specify the interface. 

I don't know what to do next...

Reproducible: Always

Steps to Reproduce:
1. Install ntop 4.1.0 and set "-i eth0" in /etc/conf.d/ntop
2. Start service
3. Point browser to http://localhost:3000
Actual Results:  
Error message "No interface has been configured. Please configure ntop first."

Expected Results:  
Show stats about the network interface specified in the NTOP_OPTS of /etc/conf.d/ntop

Portage 2.1.10.49 (default/linux/amd64/10.0/server, gcc-4.5.3, glibc-2.14.1-r2, 3.2.1-gentoo-r2 x86_64)
=================================================================
System uname: Linux-3.2.1-gentoo-r2-x86_64-AMD_Athlon-tm-_64_Processor_3500+-with-gentoo-2.1
Timestamp of tree: Sat, 17 Mar 2012 16:00:01 +0000
app-shells/bash:          4.2_p24
dev-lang/python:          2.7.2-r3, 3.2.2
dev-util/cmake:           2.8.7-r5
dev-util/pkgconfig:       0.26
sys-apps/baselayout:      2.1
sys-apps/openrc:          0.9.9.3
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.68
sys-devel/automake:       1.11.3
sys-devel/binutils:       2.22-r1
sys-devel/gcc:            4.5.3-r2
sys-devel/gcc-config:     1.5.1-r1
sys-devel/libtool:        2.4.2
sys-devel/make:           3.82-r3
sys-kernel/linux-headers: 3.2-r1 (virtual/os-headers)
sys-libs/glibc:           2.14.1-r2
Repositories: gentoo
ACCEPT_KEYWORDS="amd64 ~amd64 ~x86"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -pipe -fomit-frame-pointer"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.3/ext-active/ /etc/php/apache2-php5.4/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cgi-php5.4/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/php/cli-php5.4/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=native -O2 -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digests binpkg-logs distlocks ebuild-locks fixlafiles news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch xattr"
FFLAGS=""
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="3dnow acl amd64 avahi berkdb bzip2 caps cli cracklib crypt cups cxx dbus dri fam fortran gdbm glibc-omitfp gpm iconv ipv6 jpeg mmx modules mudflap multilib ncurses nptl nptlonly openmp pam pcre png pppd readline session snmp sse sse2 ssl svg sysfs syslog tcpd truetype unicode xattr xml xorg zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias asis cern_meta charset_lite proxy proxy_ajp version" APACHE2_MPMS="prefork" CALLIGRA_FEATURES="kexi words flow plan stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" PHP_TARGETS="php5-3 php5-4" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga neomagic nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Mark Richter 2012-08-11 18:16:20 UTC]

Why specify interface twice? "-i eth0" should suffice, no?