Estação não recebe tela de login para acessar ftp autenticad

Tenho server Linux Conectiva 10 estações rWXP pro e quando tento acessar endereços ftp fora que não precisem de autenticação rola blz (ftp.uol.com.br), mas quando o server exige autenticação não aparece para o usuário a tela pedindo login e senha e o squid retorna erro de access denied.

Fora outras regras de firewall a q trata o ftp é:

## Execucao de sessoes FTP
insmod ip_conntrack_ftp
insmod ip_nat_ftp



A Pagina WEB retornada é:

ERROR
The requested URL could not be retrieved

--------------------------------------------------------------------------------

An FTP authentication failure occurred while trying to retrieve the URL: ftp://clientes.dpcomp.com.br/

Squid sent the following FTP command:

PASS <yourpassword>
and then received this reply
Login incorrect.

Your cache administrator is webmaster.

--------------------------------------------------------------------------------

Pq a tela de login e senha não aparece antes deste erro ?

Calma lá na resposta, digamos que sou um usuário esperto que demora
mas axa o que procura !!!

FTP usa as portas TCP 20 e 21.
Essas portas estão liberadas em seu firewall ?

Caro,

Veja no squid se a opção ftp passive esta ativa.

falou,

http_port 3128
hierarchy_stoplist cgi-bin ?
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY
cache_mem 384 MB
cache_swap_low 95
cache_swap_high 98
maximum_object_size 16384 KB
maximum_object_size_in_memory 20 KB
cache_dir ufs /var/cache/squid 10000 16 256
cache_access_log /var/log/squid/access.log
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log
pid_filename /var/run/squid.pid
#acl all src 0.0.0.0/0.0.0.0
acl all src 0.0.0.0/0
acl manager proto cache_object
acl rede_interna src 192.168.0.0/24
acl localhost src 127.0.0.1/255.255.255.255
acl SSL_ports port 443 563
acl Safe_ports port 80 # http"
acl Safe_ports port 21 # ftp"
acl Safe_ports port 443 563 # https, snews"
acl Safe_ports port 70 # gopher"
acl Safe_ports port 210 # wais"
acl Safe_ports port 1025-65535 # unregistered ports"
acl Safe_ports port 280 # http-mgmt"
acl Safe_ports port 488 # gss-http"
acl Safe_ports port 591 # filemaker"
acl Safe_ports port 777 # multiling http"
acl Safe_ports port 22 #SSH
#acl Safe_ports port 44405 #MUOnline
acl CONNECT method CONNECT
http_access allow rede_interna
icp_access allow rede_interna
http_access deny all
icp_access deny all
visible_hostname LNX_SERVER_01
httpd_accel_with_proxy on
httpd_accel_port 80

Citação:

---

Postado originalmente por Emersux

http_port 3128
hierarchy_stoplist cgi-bin ?
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY
cache_mem 384 MB
cache_swap_low 95
cache_swap_high 98
maximum_object_size 16384 KB
maximum_object_size_in_memory 20 KB
cache_dir ufs /var/cache/squid 10000 16 256
cache_access_log /var/log/squid/access.log
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log
pid_filename /var/run/squid.pid
#acl all src 0.0.0.0/0.0.0.0
acl all src 0.0.0.0/0
acl manager proto cache_object
acl rede_interna src 192.168.0.0/24
acl localhost src 127.0.0.1/255.255.255.255
acl SSL_ports port 443 563
acl Safe_ports port 80 # http"
acl Safe_ports port 21 # ftp"
acl Safe_ports port 443 563 # https, snews"
acl Safe_ports port 70 # gopher"
acl Safe_ports port 210 # wais"
acl Safe_ports port 1025-65535 # unregistered ports"
acl Safe_ports port 280 # http-mgmt"
acl Safe_ports port 488 # gss-http"
acl Safe_ports port 591 # filemaker"
acl Safe_ports port 777 # multiling http"
acl Safe_ports port 22 #SSH
#acl Safe_ports port 44405 #MUOnline
acl CONNECT method CONNECT
http_access allow rede_interna
icp_access allow rede_interna
http_access deny all
icp_access deny all
visible_hostname LNX_SERVER_01
httpd_accel_with_proxy on
httpd_accel_port 80

---

Tenta configurar as opções relacionadas à FTP no seu squid.conf.


Abraços!