Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Delivered-To: mailing list cygwin@cygwin.com To: cygwin@cygwin.com X-Injected-Via-Gmane: yes Path: not-for-mail From: Andrew DeFaria Newsgroups: gmane.os.cygwin Subject: Re: login: no shell: /bin/bash: Permission denied Date: Wed, 06 Mar 2002 11:12:11 -0800 Organization: Salira Optical Networks Lines: 41 Message-ID: <3C866A0B.6040500@DeFaria.com> References: <20020306101433.P13590@cygbert.vinschen.de> NNTP-Posting-Host: 206.184.204.2 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: quimby2.netfonds.no 1015442361 32179 206.184.204.2 (6 Mar 2002 19:19:21 GMT) X-Complaints-To: usenet@quimby2.netfonds.no NNTP-Posting-Date: 6 Mar 2002 19:19:21 GMT User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:0.9.4) Gecko/20011019 Netscape6/6.2 X-Accept-Language: en-us Corinna Vinschen wrote: > No, it didn't work. `who' isn't the right way to get your current > user name, try `id'. Basically, login is doing the following: > > execlp(pwd->pw_shell, tbuf, 0); > fprintf(stderr, "login: no shell: "); > perror(pwd->pw_shell); > exit(0); > > So, if it couldn't execute the shell, it emits the above error > message. > > The problem you're seeing results from your inability to change > the user context. You can't do it, your account doesn't have the > permission. That's normal. See /usr/doc/Cygwin/login.README. You imply that somebody has the ability to change user context! If so then who is that somebody (USER)? It's my understanding that the only thing(s) that use login are things like telnet/rlogin/rsh. Frustrated by the lack of su(1M)! Oh, BTW, here's a potential security problem: $ rsh hosta id uid=1370(adefaria) gid=513(Domain Users) groups=0(Everyone),512(Domain Admins),513(Domain Users),1170(Everybody),1382(ITSupport),1354(Operations),1331(Software) $ rsh hosta -l otheruser id uid=1269(otheruser) gid=513(Domain Users) groups=0(Everyone),513(Domain Users),1203(Engineering),1170(Everybody),2171(Product Team),1215(Service Group),1331(Software),1298(TDM Group) How did I rsh as another user and not be prompted for a password? -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/