Linux 4.4.0-75-genérico # 96-Ubuntu SMP Qui Abr 20 09:56:33 UTC 2017 x86_64 x86_64 x86_64 GNU / Linux
As permissões parecem bem abertas
>>> ll /
...
drwxrwxrwt 8 root root 4096 May 1 02:44 tmp/
Acesso negado:
sudo -u www-data echo "hello" > /tmp/test.txt
-bash: /tmp/test.txt: Permission denied
O espaço em disco parece OK:
>>> df -h
Filesystem Size Used Avail Use% Mounted on
udev 980M 0 980M 0% /dev
tmpfs 200M 8.2M 192M 5% /run
/dev/xvda1 7.8G 6.3G 1.1G 86% /
tmpfs 1000M 0 1000M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 1000M 0 1000M 0% /sys/fs/cgroup
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 200M 0 200M 0% /run/user/1000