Ubuntu Security :: MD5 Checksum For Files - GUI Interface?
Sep 1, 2011I am new to Ubuntu and I need to know how is possible to calculate a file's MD5 checksum. Is there also any gui interface?
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Ubuntu Security :: Check Openssh Md5 Checksum
Aug 10, 2010I have Ubuntu 10.04 and I used my ssh to connect to a webserver. This is the version that I have installed.
Quote:
OpenSSH_5.3p1 Debian-3ubuntu4, OpenSSL 0.9.8k 25 Mar 2009
Apparently the server was hacked using my user and the server admin suggested the my ssh can be tainted.
do a checksum of the ssh, but I cannot find this file on my system.
Code:
md5sum /usr/sbin/sshd
And I will need a md5 hash from a good untainted version and I cannot find that as well on the openssh website.
Security :: Iptables -L Does Not Show In-interface Or Out-interface?
Feb 26, 2011When I do...# iptables -L...I see rules in my INPUT and OUTPUT chains that look scary:ACCEPT all -- anywhere anywhere...but these rules only apply to the loopback interface. I tested it and the server cannot be reached on open ports from the outside world. How can I make iptables show the interfaces that the rules apply to?Otherwise, every time I do iptables -L it will scare the crap out of me.
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Nov 27, 2010Does deleting files using the Ubuntu One web interface delete the files stored on my computer?
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Jul 14, 2011i want to view my iptables log on web interface, with chart (in option, but this is not my priority).
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Jul 7, 2010I'm trying to prevent users from accessing the grub menu, but setting the timeout to 0 doesn't cut it because a user can hold down ESC during boot.At the moment, it seems that my only option is to set a password for grub. But I was hopping that there is a better way where I can disable that feature completely.
View 11 Replies View RelatedSecurity :: IPtables Firewall Settings With Virtual Interface
Aug 12, 2010I have a server with 14 IP's on eth0. I'm using virtual interfaces to handle the IP's, but the iptables don't seem to work on the virtual interface. It blocks ports that I want open. I'm not that great with iptables, I use what I have because it works for me, but as far as tweaking it, I'm pretty lost.
My iptables:
# Simple Firewall configuration
#
# Set default policies --------
*filter
:INPUT ACCEPT [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
#
# Internal Networks -----------
#-A INPUT -s <private.class.C>/24 -d <private.class.C>/24 -i eth1 -j ACCEPT
#
# Loopback --------------------
-A INPUT -s 0/0 -d 0/0 -i lo -j ACCEPT
#
# Accept established connections
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
#
# Services --------------------
#
# For SSH gateway
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 22 -m state --state NEW -j ACCEPT
#
# For SMTP gateway
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 25 -m state --state NEW -j ACCEPT
#
# For FTP server
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 20 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 21 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 53 -m state --state NEW -j ACCEPT
#
# HTTP services
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 80 -m state --state NEW -j ACCEPT
#
# HTTPS services
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 443 -m state --state NEW -j ACCEPT
#
# POP-3 services
#-A INPUT -p tcp -s 0/0 -d 0/0 --dport 110 -m state --state NEW -j ACCEPT
#
# IMAP services
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 143 -m state --state NEW -j ACCEPT
#
#PLESK
#-A INPUT -p tcp -s 0/0 -d 0/0 --dport 8443 -m state --state NEW -j ACCEPT
#
#Games
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 28960 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 28960 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 27666 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 27666 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 28961 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 28961 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 28962 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 28962 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 27015 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 27015 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 27016 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 27016 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 27017 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 27017 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -s 0/0 -d 0/0 --dport 27020 -m state --state NEW -j ACCEPT
-A INPUT -p udp -s 0/0 -d 0/0 --dport 27020 -m state --state NEW -j ACCEPT
# Disallow fragmented packets
-A INPUT -f -j DROP
#
# Log & Block broadcast packets
-A INPUT -d 255.255.255.255/0.0.0.255 -j LOG
-A INPUT -d 255.255.255.255/0.0.0.255 -j DROP
# Log & Block multicast packets
-A INPUT -d 224.0.0.1 -j LOG
-A INPUT -d 224.0.0.1 -j DROP
#
# Log and drop all other incoming packets
-A INPUT -j LOG
-A INPUT -j DROP
#
COMMIT
Security :: Building An Opensource Syslog-SNMP Server With Web Interface?
Jun 16, 2010I am looking to build a dedicated syslog-SNMP server with remote web interface and I would appreciate a discussion from our community on recommending the best solutions to deploy. I would like to be able to create an opensource architecture I could easily duplicate for multiple stand-alone customer environments.
View 1 Replies View RelatedSecurity :: Mount 2 Network Interface Card (NIC) And Make A Bridge
Apr 1, 2010Actually i'm doing an ingenior training in SAGEM company, well i'm trying to develop an application which is able ti disturb the IP Network,my idea was is to mount 2 Network Interface Card (NIC) and make a bridge to pass the IP flow and to exploit the firewall Netfilter using iptables command.The application has to import a text file containing a binary array like this one:
0 1 0 : 0 corresponds to iptables -p ip ACCEPT
1 1 1 : 1 corresponds to iptables -p ip DROP
0 0 1
==> So the expected result is to have 5 ip datagrams dropped
My idea was: if 0 --> iptables -A FORWARD -p ip -m limit --limit-burst 1 -j ACCEPT
if 1 --> iptables -A FORWARD -p ip -m limit --limit-burst 1 -j DROP
The problem was: After executing the application and parsing the text file,
with iptables -L -v: i have
Code:
-A FORWARD -p ip -m limit --limit-burst 1 -j ACCEPT
-A FORWARD -p ip -m limit --limit-burst 1 -j DROP
-A FORWARD -p ip -m limit --limit-burst 1 -j ACCEPT
which is logic, but when i sniff with wireshark i find more packets are dropped(6,7 or 8 are dropped), like i had put more DROP rules. and sometimes i found the exact value(usually 5 dropped).
Ubuntu One :: Delete Files/folders From Web Interface AWOL?
Aug 24, 2010I have installed a new system on my desktop computer, and would now like to delete files/folders from the web interface, as they no longer reflect the files and folders on my desktop PC. I use my desktop PC to sync files and folders one way to my laptops.
View 9 Replies View RelatedFedora Servers :: Web Interface For Accessing Files
Jan 18, 2010I've set up a FTP server, but now I would also give the ability to users to access file through a web interface, like the ones you can find in many NAS.I there anyone that knows a software that do this? I can't find nothing useful.
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Apr 30, 2010i have trouble with my graphical interface, i cant get the window where i can type login and password, its only black, so how can i get into files, an other way to get into the sessio?
View 1 Replies View RelatedSlackware :: Wireless Interface On Eth1 - Setup Config Files?
Aug 23, 2010All rc.inet1 an rc.wireless scripts work well if a wireless extension is on wlan(x). My notebook has Intel Pro 2100 wireless adapter (the ipw2100 module). By the system the card is marked as eth1. If you have a look at rc.inet1(.conf) you see that by default an eth1 has no wireless extensions. how to set up my network.
View 2 Replies View RelatedUbuntu :: Checksum - HDD Backup Using DD Over USB
Oct 1, 2010Using Ubuntu 10.04 on an old HP DV4000 laptop. Trying to do a backup from my laptop's disk to an external USB drive using DD while booted from an Ubuntu boot disk. The laptop's hard drive is not mounted. I was also using a checksum to verify the backup against the hard drive like so:
Code:
$ dd if=/dev/sda of=/media/usbdrive/whatever.img
$ md5sum /dev/sda > laptop.md5
$ md5sum /media/usbdrive/whatever.img > img.md5
Unfortunately over two separate attempts I have not got the checksums to match. However, I have mounted the dd image and retrieved part of the backup from the image, with no apparent corruption. Are there any reasons other than data corruption that could be causing this? I have not tried to restore from said image to see if it "works" (for obvious reasons).
Fedora Security :: Switch Off The Network Interface But Light Of Network Card Plugged In The Router Stays On (green)
Dec 26, 2010I have a laptop connected to the the net thru an adsl modem, when I switch off the laptop network interface,(thru system-config-network) the light of the laptop network card plugged in the router stays on ( green) where as in my pc, when i do the same thing , the light of my pc network card goes off in the modem
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Sep 8, 2010I've got a few video files that came with md5's. I want to check them but I don't know how.
View 6 Replies View RelatedUbuntu :: Md: Invalid Superblock Checksum
Jul 11, 2011I'm running 2.6.32-28-generic. I have a raid1 (two 1tb drives with two partitions... one for / and one for /home.) After a power outage, I'm seeing grub complaining about /dev/md0 not existing (ALERT! /dev/md0 does not exist. Dropping to a shell!)
I booted to the latest live CD to have a look around. My dmesg output includes these ominous lines:
Code:
Here is the whole dmesg output: [url]
Ubuntu :: MD5 Checksum Tarball Contents?
Jul 22, 2011I have a large tarball which is bz2 compressed, and I would like to get a md5 sum of the files contained in it, as I have a separate directory on another server containing what I think are the same files. I want to check to see if the tarballs files are the same as the uncompressed files on the remote server. The files are big 10gb+ so I was wondering if there was a quick way without having to uncompress them all and then md5 them.
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Oct 7, 2010is there a command within ubuntu to create a checksum of a machine after i have installed all of my needed software. i'm interested in this as a defense against rootkits
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Oct 15, 2010Where can I find the md5sum checksum for Ubuntu 10.10? They seem to keep it hidden.
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Apr 30, 2011I have problem witch installing larger packages. Small packages works always. Some bigger works after few tries (like vlc-data). Large packages never works (wesnoth-1.8-music 138MB). I checked many mirrors: main, every from Poland and most from Germany. It same on kubuntu 10.10 and 11.04. My ISP doesn't use proxy of any kind. What could be the reason?
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Feb 14, 2010I just had an ATT Uverse RG installed. However my Smoothwall router that previously worked fine with the ADSL SpeedStream is no longer accepting an address assignment DHCP ip address from this new gateway. (3800HGV-B)Any thoughts ideas or experience working with this hardware? ATT only supports Windows and Mac
View 2 Replies View RelatedNetworking :: Prevent Auto Up An Interface At /etc/network/interface File ?
Jul 18, 2011I have a ppp0 entry with post-up options like this
mapping ppp0
map none photon-plus motorola
map timeout: 12
[code]...
General :: How To Checksum A Directory
Apr 23, 2010How can I checksum a directory?
Using both cksum and md5sum yields the same error
Code:
root@linux# cksum /bin
cksum: /bin: Is a directory
root@linux# md5sum /bin
md5sum: /bin: Is a directory
[Code].....
General :: Unable To Use GUI Interface Meant Graphics Interface?
Apr 11, 2011i am using windows 7 in my laptop and linux is installed on virtualBox but my problem is the screen is showing small in virtualbox is there any way to enalarge the screen to show like windows screen? i did before by using VGA setting but it made problem me i was not able to use GUI interface i meant graphics interface
it was just showing me Command Prompt.
Ubuntu Installation :: Openoffice / Firefox Fail Their Checksum
Oct 28, 2010Using a 10.04 LTS installation disc, fresh are my install Firefox, multiple software, and the software updater thing did not work. Figured maybe I messed something up. I installed 10.04 LTS about 6 times from scratch, no other OS on the system. They all had issues loading software, I click on whatever it goes to launch and nothing ever comes up. I started doing updates through the command prompt using
sudo apt-get update
sudo apt-get upgrade
Then multiple packages broke. Tried sudo apt-get -f install but I keep getting an error that openoffice and firefox fail their checksum. Click on upgrade by 10.10 version gives me the screen that says are you sure, with all the information for the distro and then brings up a window that says download 2 out of 2 and it also crashes. So I figured alright, maybe the CD version I have is messed up. I downloaded the 10.10 iso image and burned it three times. Two of my live cds take me boot me to the purple ubuntu starting screen but nothing is displayed except for a little icon with a keyboard and the disabled person at the bottom. Then my computer reboots it does that continuously.
Ubuntu Installation :: 11.04 LiveCD - EDID Checksum Invalid
Jul 17, 2011I burned a new disk with ubuntu 11.04 image and I managed to boot the live cd using my external monitor, I've installed and went into my monitor settings, it displays my external monitor as unknown and doesn't even detect my laptop screen. Changing the driver being used in my xorg.conf to vesa allows me to boot properly and ubuntu uses my laptop screen (yet it still detects it as an unknown monitor). Installing any nvidia driver and using it breaks my system. Heres an image of the laptop when using the nvidia driver (btw I can still hear the ubuntu sound that plays when its reached the logon prompt).
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May 17, 2010I installed Debian 5.04. The Debian installer picked the Ethernet card but not the wireless (Atheros 9285). I followed these instructions to install it (found at [URL]...
[code]...
But there was no wireless interface shown in the network interfaces entry of hardinfo, even though I wrote modprobe ath_pci in terminal window. My questions are: 1. I followed the instructions regarding updating the madwifi sources, installing them etc. Does this guarantee that apt downloaded and installed the right madwifi driver? 2. Will I be better off if I try to install the driver downloaded from the Atheros website? 3. How can I activate the wireless interface (since the driver is running should not the wireless interface somehow show up automatically)? 4. When I am running Ubuntu 9.10 it picks up the wireless. Can I somehow copy all the files for the wireless from Ubuntu and paste them in the Debian filesystem?
General :: Finding Checksum On The Disk?
Jan 3, 2010This is the first time I have made my own install disks, instead of buying a boxed set. Edmunds Enterprises apparently doesn't sell them anymore. The checksum values are listed on the download site, but how do I compare them with my downloads? My ext3 partition is formatted (blank) awaiting installation, so I will have to do this in Windows, and I don't know how.
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Oct 5, 2010As everyone know, the checksum of PEC in Sbus is CRC-8, but in my project, the checksum way is zero-checksum, the SMBus read transaction as below.
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